Catalogue 2017

Paul Gothe GmbH 

Emission Sampling Technique 

Product Information 

since 1924 and 100% 

conform to EN-Standards 

Mobile Measurement System for 

Gravimetric Dust Concentration Measurements 

AT HOME IN THE EMISSION 

CONTROLLING SECTOR 

Since 1924 we can build of experiences in 

the field of emission and process controlling. 

That is why we are at home in the world of 

measurement of stationary sources as well 

as in cement and petrolchemical sector. 

Be it emission control at the waste treatment 

or process optimization, Paul Gothe offers 

t a i l o r - m a d e s o l u t i o n s . 

WE OFFER YOU A CHOICE 

Paul Gothe can offer complete techniques 

for sampling, ranging from the automatic 

controlled sampling unit, suction pyrometer, 

Pitot tubes to special system for sampling 

in corrosive airs like cumbustion chambers. 

Within the process measurement technology 

Paul Gothe play a central role in determining 

particulate matter and compounds in ducts. 

MANUFACTURER OF NEW 

TECHNOLOGIES AND IDEAS 

We guarantee for continuity and compatibility 

of our products over decades, using advanced 

technology and high qualified personnel. The 

developments of our systems are in co-operation 

with the state country-offices always according to 

the German and European standards. Our systems 

takes continuously part in official control-programs 

and will checked consequently for their correctness. 


P 

www.paulgothe.com




1 

T 



IN-Stack Version 

2 

3 

4 5 6 

7 

Key features 

- easy handling 

- range: 0,1..500.000 mg/m³ 

- temperature range up to 1000°C 

- length up to 6000 mm 

- compliance VDI, EN, USA-EPA 

- highest measuring accuracy 

- automatic sampling system 

- available: Inox and Titanium 

4,6,7: drying tower, flowmeter, gas meter 

2: filter devices 

5: high performance 

gastight pump 

1,3: Suction tube with 

integrated L or S- 

Pitot tube and 

thermocouple 

For detailed information about our 

products use our homepage: 

www.paulgothe.com 


P 

www.paulgothe.com




1 

T 



OUT-Stack Version 

1 

3 

2 

8 

4 

5 6 

7 

Application 

Filter devices for IN- & OUT-Stack sampling 

Heated probes with integrated 

Pitot tube and thermocouple 

4 

5 6 

Complete removable filter heater 

Special absorption traps 

For power plant emission: 

probe with integrated heated filter 

Systems in compliance with 

the new EN-Standards 

All parts are compatible to each other 

7 

gooseneck nozzle 

with pitot tube 

Key features 

- easy handling 

- range: 0,1..500.000 mg/m³ 

- integrated heated box 

- length up to 3000 mm 

- compliance VDI, EN, USA-EPA 

- highest measuring accuracy 

- automatic sampling system 

- available: Inox and Titanium 

Titanium filter device and liner 

3: heated suction tube 

5-7: isokinetic sampler 

ITES 

2: heater for parts 

main gas flow 

5-7: constant gas sampler 

8: carrying box for 2 x 3 

bubblers in serie 

gas flow 

iTES 

Isokinetic Control Unit 

Automatic system for 

isokinetic sampling of 

particulate matter and 

constant sampling. 

For detailed information about our 

products use our homepage: 



P 

www.paulgothe.com

PAUL GOTHE BOCHUM 

PAUL GOTHE GmbH 

Manufacturer of Emissions Control Technology 

Product info 1: Nozzles acc. VDI-guidelines and EN 13284-1: 

since 1924 

Nozzle (VDI 2066, p. 2 / EN 13284-1): 

Nozzle diameter 4 - 30 mm, length: ~ 68 mm, exit: external thread G ½, 

Material: stainless steel (up to 500°C): 

Material: 1.4841 (up to 1000°C): 

Material: titanium (up to 400°C): 

Art.-No.: 1.01-A 

Art.-No.: 1.01-C 

Art.-No.: 1.01-T 

Nozzle (VDI 2066, p. 7 / EN 13284-1): with exit G ¾, conical, only for plane-filter-device acc. VDI 

2066, page 7 and impactor, nozzle diameter 4 - 18 mm available, 

length: 39-59 mm, 



Art.-No.: 1.02-A 

Art.-No.: 1.02-T 

Gooseneck curve with 5 nozzles (EN 13284-1 and ISO 9096): 

Nozzle diameter 6, 8, 10, 12, 14 mm, other openings are available on 

request, leg length: ~71 mm. Complete in a plastic box. 

Nozzle thread: M 12 x 1 mm 

Curve exit: external thread G ½, 



Art.-No.: 2.07-A 

Art.-No.: 2.07-T 

Exit: external thread G ¾ with conical exit only for plane-filter-device 

acc. VDI 2066, page 7 and cascade impactor Johnas, 



Art.-No.: 2.08-A 

Art.-No.: 2.08-T 

Gooseneck nozzle (EN 13284-1 and ISO 9096): Nozzle fixed at the bent. 

Nozzle diameter 4 to 30 mm. 

For small openings >2½’’. On request for G 2 openings. 

Exit: external thread G ½, 


Material: 1.4841 (up to 1000°C): 


Art.-No.: 2.05-A 

Art.-No.: 2.05-C 

Art.-No.: 2.05-T 

www.paulgothe.de – Wittener Str. 82, 44789 Bochum, Tel: ++49-0234 - 33 51 80, FAX: ++49-0234 - 30 82 17




Productinfo: Gooseneck-Curve with Standard-nozzle-set: 

SEIT 1924 

Complete set: 

according to the European Standard EN 13284-1, includes a set of 

5 nozzles and one gooseneck-curve for small tubes and openings 

(openings > G 2½). 

- Total leg length (curve with nozzle): 77 mm, 

- nozzle openings: 6, 8, 10, 12 and 14 mm. 

- complete in a small plastic-suitcase, 

- nozzle and gooseneck-curve with screw thread M 12, 

- exit gooseneck-curve: external screw thread G ½, 

- weight: 0,6 kg. 

Material: Stainless Steel (up to 500°C): 

Material: Titanium (up to 400°C): 

Art.-No.: 2.07-A 

Art.-No.: 2.07-T 

fit through G 3‘‘ sleeve: 

Opening (core diameter) from 

tube threads according to DIN ISO 228, part 1: 

G 2 

G 2½ 

G 3 

56,6 mm 

72,2 mm 

84,9 mm 

Gooseneck curve with exchangeable nozzle: 

nozzle 

opening 

according to 

EN 13284 

leg length (L) 

opening 

G 2 

opening 

G 2½ 

opening 

G 3 

4-14 mm Yes 77 mm 

15 mm Yes 81 mm 






since 1924 

Product info 7.2: Plane-filter-device (VDI 2066 / EN 13284-1) 

Plane-filter-device for dust range ≤ 20 mg/m³ 

According to EN 13284, VDI 2066 and ISO 9096 for manual dust measurement in flowing gases and 

gravimetric determination of dust load if the dust content in the range from 1 to 20 mg/m³: the separator consists 

of the inlet cone and the filter support. The probe is constructed cylindrically and smoothly fitted to the 

diffuser of the filter device with an aperture angle of 30°. Maximum gas flow rate: 4 m³/h, 

adsorption capacity of particulate matter (approximate value): 20 mg. 

Filter device for using IN- and OUT-STACK 

Entrance: Internal thread G ½ 

Exit: External thread G ½ 

Material Stainless Steel up to 500°C 

Material Titanium up to 400°C 

Plane filter device 

Filter Ø 

Art-No. 

Filter device 

T: Titanium, 

A: Steel 

Size 

Outer-Ø 

Length 

37 mm 7.21 -T/-A Ø 50 

110 mm 

45 mm 7.22 -T/-A Ø 55 

120 mm 

47 mm 7.24 -T/-A Ø 65 

120 mm 

50 mm 7.23 -T/-A Ø 65 

120 mm 

Art-No. 

Plane filter 

holder 

Art-No. 

Petri dish 

Art.-No. 

Transport case 

11.01 -T/-A 27.01 29.04-F-1 

11.02 -T/-A 27.02 29.04-F-2 

11.04 -T/-A 27.02 29.04-F-2 

11.03 -T/-A 27.02 29.04-F-2 

Matching Nozzle (VDI 2066, 2 / EN 13284-1): 

Nozzle diameter 6 - 30 mm available, length: ca. 68 mm, exit: external thread G ½. 

Material stainless steel (up to 500°C): 

Art.-No.: 1.01-A 

Material titanium (up to 400°C): 

Art.-No.: 1.01-T 

Filter holder for plane filter device with circle-ring-grooves: 

nozzle 

Plane filter holder 

Suitcase transport 

for 8 glasses Ø 60 


Art.-No.: 29.04-F-1 

Art.-No.: 29.04-F-2 

Transport suitcase 





since 1924 

Product info 7.3: Plane filter device acc. VDI and EN 13284-1: 

Plane-filter-device for dust range < 20 mg/m³, (VDI 2066, 7 / EN 13284-1) 

for manual dust measurement in flowing gases and gravimetric 

determination of dust load if the dust content in the range 

from 0,1 to 5 mg/m³ (up to 20 mg/m³): the separator consists one 

inlet cone and filter support. The probe is constructed cylindrically 

and smoothly fitted to the diffuser of the filter device with an 

aperture angle of 30°. Maximum gas flow rate: 4 m³/h, adsorption 

capacity of particulate matter (approximate value): 20 mg. 

Filter device for using IN-STACK in front of the bend with special nozzles 

Entrance: Internal thread G ¾ 


Material stainless steel up to 500°C: 

Material Titanium up to 400°C 

Filter device 

Filter Ø 

Art-No. 

Filter device 

T: Titanium, 

A: Steel 

Size 

outer-Ø 

length 

45 mm 7.31 -T/-A Ø 55 

81 mm 

47 mm 7.33 -T/-A Ø 65 

91 mm 

50 mm 7.32 -T/-A Ø 65 

91 mm 

Art-No. 

Plane filter 

holder 

Art-No. 

Petri dish 

Art.-No. 

Transport case 

11.02 -T/-A 27.02 29.04-F-2 

11.04 -T/-A 27.02 29.04-F-2 

11.03 -T/-A 27.02 29.04-F-2 

Matching nozzle acc. VDI 2066, part 7 and EN 13284-1, external thread G ¾, conical. 

Nozzle diameter 6 - 18 mm available, length: 39-59 mm. 

Material stainless steel (up to 500°C): Art.-No.: 1.02-A 

Material titanium (up to 400°C): 

Art.-No.: 1.02-T 

Nozzle 

Filter holder for plane filter device with circle-ring-grooves: 

Plane filter holder 

Suitcase transport 



Art.-No.: 29.04-F-1 

Art.-No.: 29.04-F-2 

Transport suitcase 





Product info 7.0 and 7.1: Tubular Filter Device 

Since 1924 

Tubular Filter Device for dust range < 1000 mg/m³ 


determination of dust load if the dust content is higher than 20 

mg/m³: Separator with a filtering cartridge (cartridge stuffed with 

quartz wool or with glass- or quartz thimbles). The separator 

consist the filter housing Ø: 45 mm, length: 145 mm, 



Material Stainless Steel (up to 500°C): Art.-No.: 7.01-A Picture: Filter device 7.01 

Material Titanium (up to 400°C): Art.-No.: 7.01-T 

Tubular Filter Device for dust range < 1000 mg/m³ with plane filter 


determination of dust load if the dust content is higher than 20 mg/m³: 

A plane filter (Ø 45 mm) following the cartridge filter retains broken 

fibres from the cartridge which may occur during the measurement. By 

this the detection limit of the gravimetric mass determination is reduce 

and the reproducibility of the measurement is enhanced. 

The separator consist the filter housing and the plane filter holder 

Ø: 55 mm, length: 145 mm, Picture: filter device 7.11 



Material Stainless Steel (up to 500°C): Art.-No.: 7.11-A 

Material Titanium (up to 400°C): Art.-No.: 7.11-T 

For both filter devices matching metal filtering cartridge for stuffing with glassor 

quartz fibre wool or thimbles, length: 68 mm 

Filtering cartridge 

Material Stainless Steel (up to 500°C): Art.-No.: 8.01 cone 

Material Titanium (up to 400°C): Art.-No.: 8.02 

Matching Glass-fibre thimbles (Co. Munktell), Art.-No.: 603 GM thimble 

Ø: Outer: 26,8 mm, inner: 23,5 mm, length: 68 mm 

Matching Quartz-fibre thimbles (Co. Munktell) 

Ø: Outer: 26 mm, inner: 21,5 mm, length: 68 mm 

Art.-No.: G-Ti 

Generally employ a cone when using glass- or quartz-thimbles. The cone 

guarantees that the gas flow moves into the thimble and not past it. 

Cone Stainless Steel Art.-No.: 10.03 

Cone Titanium Art.-No.: 10.02 

cartridge 

Weighting- and Transport casing with screw cap 

for cartridge with thimble: Art.-No.: 46.02 

Suitcase for safe and contamination free transport, 

for 8 transport glasses Art.-No.: 29.04-G8 





Productinfo 7.47: Small sampling equipment (EN 13284-1) 

Small sampling equipment according to EN 13284-1 

and ISO 9096 

Functional sampling set for high precision dust monitoring at 

low range (< 20 mg/m³) and high range (< 1000 mg/m³). 

Material: Titanium 

Content: 

• Gooseneck nozzle set with 5 nozzles according to 

EN 13284-1 (6, 8, 10, 12 and 14 mm) 

• Tubular filter device with integrated plane filter 

holder according to EN 13284-1 (7.11-T) 

• Cone for plane filter Ø 45 mm. With this cone can 

be the tubular filter device rebuilt into a single 

plane filter device (7.22-T) for low dust range. 

• Complete in one stable plastic suitcase with fitted 

PU-foam. 

Complete set from Titanium 

Art.-No.: 7.47-T 

since 1924 

System for plane filter device 

for low dust range (




Product info 13.0: Tubular Filter (VDI 2066 / EN 13284-1) 

High Dust-Tubular Filter Device for dust ranges < 100 g/m³ 

The dust is separated either by the bush plugged with glass-fibre wool 

or by inserting Munktell glass-fibre thimbles. Three-part filter out of 

stainless steel, 

housing outside: Ø 70 mm, length: approx. 240 mm with union nut: 

Ø 80 mm, including a metal insert to plug with glass-fibre or quartz 

wool. 

Entrance: union nut G ½ 

Exit: external thread G ½ 

High dust filter Art.-No.: 13.05 

Matching cartridge for plug with glass fibre 

Size of the cartridge: internal Ø: 56 mm, length: 150 mm, out of highgrade 

steel with high-grade steel filter base 

Matching basket for glass fibre thimbles: 

Art.-No.: 13.031 

Size of the basket: internal Ø: 56 mm, length: 150 mm, out of highgrade 

steel 

Art.-No.: 13.032 

Munktell glass-fibre thimbles 

Art.-No.: 13.03-GF2 

Size of the thimble: Ø: 53 mm, length: 145 mm, weight: 17 g, 

separation efficiency DOP: < 0,3 µm 99,998 %. Attention: This 

thimble fits only in the basket. 

since 1924 

Basket for thimbles 

cartridge for glass fibre 





Product info 14.0: Cyclone 

since 1924 

Cyclone for dust ranges up to 500 g/m³. 

Made of stainless steel, can be attached in front of and behind the suction tube. 

Length without collector: 150 mm, diameter cyclone: 50 mm 

Separating performance: particles > 5 µm. 

Area of application: up to 650°C. 

Dust collector with thread (75, 150 and 500 cm³) 

Suction rate: > 3,5 m³/h, 



cyclone without dust collector: Art.-No.: 14.01 

heater for cyclone: Art.-No.: 14.02 

dust collector 75 cm³ with cover: Art.-No.: 14.03 



Picture: Cyclone with heater, mounted at a heated suction tube 

Trajectories for Gothe Cyclones 14.01, 

Conditions: 3.5 m³/h, T: 180°C 

Green curve: trajectory for particles with diameter of 5 µm 

Isovolume of the dust load inside the cyclone 


Zyklonabscheider für Staubkonzentrationen < 500 g/m³: 

Anleitung: 

Der Zyklon wird am Ausgang vom Absaugrohr montiert (G ½ Gewinde) und mit einer Flachdichtung Di-8 abgedichtete. 

Der passende Behälter wird mit passender Dichtung am Zyklon montiert. 

Bei Bedarf kann hinter dem Zyklon ein Hülsenfilter montiert werden. Durch den Hülsenfilter wird die Absaugrate aber auf maximal 4 m³/h 

und weniger (je nach Unterdruck) begrenzt und damit die Abscheideleistung des Zyklons verschlechtert. Die Abscheideleistung des 

Gesamtsystems wird aber deutlich erhöht, weil jetzt über den Hülsenfilterkopf eine Abscheidung von Partikeln < 0,3µm erreicht wird. 

Wenn nur der Zyklon betrieben wird, sollte für eine gute Abscheideleistung die Absaugrate über 5 m³/h liegen. 

Cyclone for dust ranges up to 500 g/m³ 

Operation: 

Cyclon are inserted into flue at the end of the probe (G ½ thread) with seal Di-8. 

Please connect the matching dust collector with seal. 

When required, a tubular filter device can placed behind the cyclone. The tubular filter reduces the suction rate below 4 m³/h or less 

(depending of the vacuum) and therefore the efficiency of the cyclone. The total efficiency of the system will be better, because the thimble 

inside the tubular filter device has a efficiency from < 0.3µm. 

If the cyclone used alone, a better efficiency will be if the suction rate is > 5 m³/h. 

Abscheideverhalten / efficiency: 

Trajektorien für Gothe Zyklon 14.01, 

Randbedingungen: 3,5 m³/h, T: 180°C 

Grüne Linie: Flugbahn von Partikeln mit einem Durchmesser von 5 µm 

Trajectories for Gothe Cyclones 14.01, 

Conditions: 3.5 m³/h, T: 180°C 

Green curve: trajectory for particles with diameter of 5 µm 

100 

Abscheideleistung bei 5 m³/h 

effiency at 5 m³/h 

80 

Seals: 

efficiency 

60 

40 

20 

0 

0 1 2 3 4 5 6 

Particle [µm] 





Product info 35: small Heater 

since 1924 

Heater for filter device 

Filter heater out of aluminium half-pipes. 

The open half-pipe permit free access to the filter device. 

The hot parts can remove trouble-free with open-end wrenches because the 

heater can be removed completely. 

Suitable for all plane and tubular filter devices. 

The heater can mounted fast and easily without any tools by folding around the 

end of the suction tube. 

Small heater: electrical, performance: ~ 200 Watt, 230 V, 

Ø 110 x 150 mm with thermocouple (NiCr-Ni) 

Art.-No.: 35.03 

Heater at suction tube 





Product info 35.03-MK: Self-regulating small Heater 

since 1924 

Heater for filter device 

Filter heater out of aluminium half-pipes. 

The open half-pipe permit free access to the filter device. 

The hot parts can remove trouble-free with open-end wrenches because the 

heater can be removed completely. 

Suitable for all plane and tubular filter devices. 

The heater can mounted fast and easily without any tools by folding around the 

end of the suction tube. 

Small heater: electrical, performance: ~ 200 Watt, 230 V, 

and with 3 mm thick thermal insulation. 

Ø 110 x 150 mm with thermocouple (NiCr-Ni) 

Selectable temperature range: 50 .. 300 °C, scale: 10 °C. 

Controlling with built in temperature sensor at the heater. 

The heat controller is flanged at the Aluminium-housing. 

With signal lamp, rotary knob with scale for the temperature on cover. 

With holder for tripod/rod. Weight: ~ 2,5 kg 

Can’t be mounted at the outlet from suction tubes! Suitable for the bent. 

Art.-No.: 35.03-MK 

Heater at sampling spot and with filter device 





SINCE 1924 

Productinfo: OUT-Stack-Heater with gas distributor 

Heater for filter devices and gas distributor 

The large heater serves filter devices with gas distributor. The heater is fastened to the suction tube by 

means of a flange and stabilizes the internal parts. At the heater can mounting one carrying box for 

bubblers. Heater with 5 mm thick thermal mineral fibre insulation. 

Heater cartridge: 400 W, 230 V, with NiCr-Ni Thermocouple to regulate exactly the temperature 

according to EN. 

Shape: Aluminum-square tube: 120 x 120 x 285 mm. 

In the delivery: 5 m power cable and cable for NiCr-Ni. Weight: 3 kg 

Article-No: 35.06 

Gas distributor to separate the main gas flow into two gas streams. E.g. one main gas volume for the 

isokinetic regulation and two constant sampling through the bubbler. Entrance: Union nut for the exit of the 

filter device, 90° bent with external thread G ¾ and hose fast connector, 2 x exits with threads for adapter. 

Material: Titanium. 

Article-No: 40.019-T 

Adapter versions: 

KS-19 ball for bubbler: Art.-No.: 40.019-T-KS 

Hose nipple (for 6..10 mm hose): Art.-No.: 40.019-T-O 

Closing cap: Art.-No.: 40.019-T-V 

Example for 2 or 1 bubbler street or with hose nipple 

Heater mounted at suction tube (flange), with 

filter head and gas distributor for two bubbler 

streets. Solid coupling of the bubbler carrying 

box at the heater. 

Carrying box for 3-8 bubbler in series for 2 

bubbler streets a’ 4 bubbler, at ground tracks 

for safe positioning of the bubbler. 

Material: PVC 

Length: ~490 mm, Wide: ~150 mm, 

High: ~170 mm 

Article-No: 45.02 

Frit-bubbler street 250 ml Duran. 

1. bottle with check valve 

Art.-No.: 41.0-S-0 




Fabrik staub- und strömungstechnischer Messgeräte 

Produktinfo 36: Temperaturregler 

SEIT 1924 

Temperaturregler 

für Thermoelement NiCr-Ni, Gehäuse aus Makrolon, mit permanenter digitaler 3-stelliger Anzeige der Ist-Temperatur. Die 

Signalverarbeitung hat eine Abtastrate von 120 ms mit einer Auflösung von 10.000 Punkten. Ein Ausgang für die Heizung über 

Halbleiterrelais für eine lange Lebensdauer (Laststrom max. 5 A ohmsche Last, 230 V, Arbeitstemperatur: -10 bis +40°C) mit 

Status-LED. Regelstruktur: EIN/AUS, P, PI, PID - Heizen; Selbstoptimierung, adaptive Optimierung und Alarmfunktionen. 

Umschaltbar auf manuelle Heizung (Impulsheizung ohne Thermoelement). 

Einfacher Temperaturregler Art.-Nr.: 36.021 

Duo-Pack: 

Zwei getrennte Temperaturregler wie oben beschrieben, aber in einem 

Gehäuse. Zwei getrennt regelnde Ausgänge über jeweils ein separates 

Halbleiterrelais. Kenndaten wie oben beschrieben. Einsatzbereich: 

Getrennte Temperaturregelung für Absaugrohr und Filterkopfheizung. 

Doppelt-Temperaturregler 

Art.-Nr.: 36.021-Duo 

Produktinfo 36: Temperature controller 

Temperature controller 

for thermocouple NiCr-Ni, housing material plastic, with permanent digital 3-digit reading of the actual temperature. The scanning 

rate of the signal processing is 120 ms with a resolution of 10.000 points. There is one output for heater with solid state relay for long 

lifetime (5 A resistive load, 230 V, operating range: -10 to +40°C) with status-LED. Control structure: ON/OFF, P, PI, PID - heating; 

self-optimization, adaptive optimization and alarm functions. Switch able to manual heating (impulse heating without thermocouple) 

Single temperature controller Art.-No.: 36.021 

Duo-Pack: 

Two separate temperature controller, as described above but in one 

housing. Two separately regulation outputs, each via a separate solid 

state relay. Characteristics as described above. Area of application: 

separate temperature control for suction tube and filter device heater. 

Double temperature controller 

Art.-No.: 36.021-Duo 





Productinfo: PM 10/2,5 -Impactor 

GMU-Cascade Impactor Johnas 

for PM 10 and 2.5 measurement according to VDI 2066, Part 10 and ISO 23210 

SINCE 1924 

3 cut-off-classes: 1. d ae > 10 µm 

2. d ae 2,5 bis 10 µm 

3. d ae < 2,5 µm 

The only validated and officially admitted impactor from the environment-offices 

(only at Paul Gothe available!) 

° Can combine with other Gothe parts 

° Easy and simple filter-change 

° Impact plates with Munktell-filter MK 360 (Ø 50 mm) 

° can combine with PM 4 Stage 

° from Titanium, no corrosion or contaminations. 

Johnas operating conditions: 

Max 

Dust concentration [mg/m³ i.N.] 200 

Temperature [°C] 400 

sampling port 

Standard 3'' 





Productinfo: PM 10/4 -Impactor 

PM 4 Stage for Cascade Impactor Johnas 

for PM 10 and 4 measurement according to VDI 2066, Part 10 and ISO 23210 

SINCE 1924 

3 cut-off-classes: 1. d ae > 10 µm 

2. d ae 4 bis 10 µm 

3. d ae < 4 µm 

For the determination of alveolar fraction accordig to Convention EN 481 and ISO 7708 

(only at Paul Gothe available!) 

° Simple exchange of the nozzle plate 

° Impact plates with Munktell-filter MK 360 (Ø 50 mm) 

° from Titanium, no corrosion or contaminations. 

Johnas operating conditions: 

Max 

Dust concentration [mg/m³ i.N.] 200 

Temperature [°C] 400 

sampling port 

Standard 3'' 


Produktinfo - Paul Gothe - Bochum 




SEIT 1924 

Produktinfo: Impaktor (Teile/Parts) 

Paul Gothe-Bochum, Wittener Str. 82, D-44789 Bochum, Tel.: ++49-(0)234-335180; Fax: ++49-(0)234-308217




Product Info: Suction Tubes acc. VDI 2066 and EN 13284-1 

since 1924 

Suction tubes available with fixed or exchangeable inner tube. 

Entrance: Internal thread G ½, Exit: external thread G ½. 

Operating range: A: Material Stainless Steel up to 500°C, T: Material Titanium up to 400°C. 

Simple suction tube: 

with fixed inner tube 10 x 1 mm, Outer diameter protection tube: 25 mm 

Art.-No.: 4.10-Material-Length 

(available in special heat resistance steel (1.4841) for use up to 1000°C) 

Electrical heated suction tube: 

with integrated power heater cartridge (~ 500 W/m) and thermocouple 

NiCr-Ni for temperature regulation, with quick hose connectors. 

Outer diameter protection tube: 25 mm 

With fixed inner tube 10 x 1 mm: 

For exchangeable inner tube 10 x 1mm: 

Water cooled suction tube: 



Outer diameter protection tube: 33 mm, without fixed inner tube, 

for exchangeable inner tube 10 x 1 mm. 

The cooling water goes at first through a tube along the internal tube 

and then at the outside-wall. By glass-break of the internal tube, the individual parts can be removed over the rear internal thread G ¾. 

With sufficient water-cooling can use this suction tube at temperatures up to 1000°C. If a hot-fan used instead of cooling water (adapters not in 

the delivery capacity) can the suction tube be heated. 

For exchangeable inner tube 10 x 1mm: 


Combination probe: 

With the combination probe can measure the gas velocity and 

temperature at the sampling point. 

Heated and non heated or water cooled versions available. Details see 

above-mentioned information. 

Outer diameter protection tube: 60 mm. 

In the delivery capacity are one interchangeable Pitot tube with fast 

connector and one thermocouple NiCr-Ni type K. The Pitot tube and the 

thermocouple inserted into the outer tube and installed parallel to the inner 

tube to determine the gas velocity and the gas temperature directly at the 

sampling point. Selectable Pitot tubes from Version A to D. 

Version 

length 

from - to 

Inner tube 

10 x 1 mm 

Not heated 0,5-6 m fixed 

exchangeable 

heated 0,5-2,7 m fixed 

exchangeable 

Art.-No. 

4.51-Material-Length 

4.52-Material-Length 

4.61-Material- Length 

4.62-Material- Length 

cooled 0,5-6 m exchangeable 4.72-Material- Length 

Available Pitot tubes for combination probe: 

(length between tip Pitot tube and front suction tube) 

Matching inner tubes for all suction tubes: 

Exit with KS 19 spherical joint (ball) 

Material: Duran, Quartz, Inox, Titanium 

Exit with G ½ external thread 

Material: Inox, Titanium 

Exit: smooth 

Material: Duran, Quartz, Inox, Titanium 



Accessoires Suction Tubes 

Holders 

for fixing the suction pipe at the measuring point. The holder needs at least the length of half a sleeve / socket 

(approx. 30 mm). 

Gas-tight holders 

made of stainless steel for suction pipes with external Ø 25, 33, 50 or 

60 mm. The gas-tight closure is achieved by a packing cord which is pressed against a flange on the suction pipe 

by means of screws. For shifting the suction pipe the flange is loosened; 

with external thread G 2: Art.-No.: 47.11 

with external thread G 2½: Art.-No.: 47.12 

with external thread G 3: Art.-No.: 47.13 

Quick fastener holder 

material: stainless steel pipe with two aluminium half-pans on the inside. The lower half-pan is firmly screwed 

on while the upper pan is moved by a toggle. The holder is not gas-tight. Shifting the suction pipe works fast 

and easily through the toggle. The suction pipe is not damaged by the half-pans even under strong loading. The 

half-pans are adapted to the required external Ø of the suction pipe. For suction tubes with external Ø: 25, 33, 50 

or 60 mm. 

Small holder (for suction tubes with Ø: 25-33 mm) 

with External thread G 2 Art.-No.: 47.31 

with External thread G 2½ Art.-No.: 47.32 


Big holder (for suction tubes with Ø: 33-60 mm) 


with External thread G 2½ Art.-No.: 47.22 


Sleeve reduction 

The holder can be adapted to the different coupling sleeves / sockets at the measuring points through sleeve 

reductions (bushing (M/F). The sleeve reduction is composed of stainless steel and an internal thread. 

Reduction of G 3 to G 2: Art.-No.: 47.41 

Reduction of G 2½ to G 2: Art.-No.: 47.42 

Adapter for suction tube: 

Entry adapter to adjust the gooseneck curve or bent in flow direction: 

for fixed inner tube: 

for exchangeable inner tube: 

Art.-No.: 3.03 (Stainless Steel or Titanium) 

Art.-No.: 3.01 (Stainless Steel or Titanium) 





Gas Cooler 

Cooling section: Ø 130 x 200 mm, with ca. 

3,5 m cooling coil (tube 10 x 1 mm) and handle. 

Integrated Stainless Steel condensate trap for ca. 

1 litre water, with lateral water level gauge and 

drain cock for the condensate, cooling water 

drain cock, gas connectors with hose fast 

connector. 

Weight ca. 4,4 kg 

Size: 195 x 190 x 570 mm 

Product Info: Suction Line 

Drying Tower 

To dry the gas with Silica gel and to protect the gas meter against 

condensate. Made from stable grey and clear PVC. The complete cover 

can removed; makes easy access to the silica gel for replacement. Water 

separation chamber, Stainless Steel sieve, stable platform. 

Clear-PVC, Ø 160 x 400 mm, with two threads in 

the cover. 

With a little change, this drying tower can use as a 

condensate trap. With handle. Weight: ~ 6 kg, 

Water separation chamber: Ø 150 x 65 mm (~1,2 l) 

Drying section: Ø 150 x 300 mm 

(~ 5,3 l / ~ 4,3 kg Silica gel ≅ 1060 g H 2O) 

since 1924 

Art.-No.: 15.03 

Art.-No.: 16.011 

Volumen Measurement – Complete Set 

Consisting of bearer frame (stable construction with handle and holder from Stainless Steel tubes), big drying tower 

with condensate trap (Art.-No. 16.011), gas meter BK 4 (0-6m³/h) with vacuum gauge and thermometer, flow meter 

(0-6m³/h) and hose fast connector. 

Size: 620 x 360 x 360 mm 

Weight: 13 kg 

Complete set 

Art.-No.: 22.0K-1 

Gas-tight corrosion resistant dry running rotary vane vacuum pump 

Particularly little maintenance requirements, resistant and highly efficient, 230 

V, more than 600 mbar vacuum, can be installed in front of the gas meter 

because the pump is gas-tight (no wrong air < 0,1%) with flow control valve, 

can be reduced down to 200 l/h (since the mass of gas is led within the cycle 

and the pump performance is not slowed down, the pump is particularly 

durable), with vacuum manometer (-1 to 0 bar). On/off switch, hose fast 

connector 

Special edition with corrosion resistant pump body. 

Performance: 5,3 m³/h (SB 6), 

0 mbar (2,5 m³/h at -400 mbar) 

Weight ~ 10 kg, 220V, 2,3 A Art.-No.: 17.03 


0 mbar (5,0 m³/h at -400 mbar) 

Weight ~ 15 kg, 220V, 3,3A Art.-No.: 17.04 

bearer frame with drying tower – flow meter – gas meter 

Small vane-pump type SA 3 TV 

for pressure and vacuum in metal- and 

plastic housing with power switch, cable 

and pneumatic connection. Particularly 

little maintenance requirements, resistant 

and highly efficient, can be installed in 

front of the gas meter because the pump is 

gas-tight (no wrong air < 0.1%) 

Vacuum max.: 

800 mbar, 

Suction volume (0 mbar): 2,5 m³/h, 

Suction volume (-200 mbar): 1,8 m³/h, 

Suction volume (-500 mbar): 1,0 m³/h, 

Weight: 

5 kg 

Size: 

230 x 136 x 125 mm 

Power supply: 

230 V / 1 A 

Pneumatic: hose olive Ø 6 to 10 mm 

Art.-No.: 17.02-SA3 


92 Years 

Paul Gothe 

ITES 

ITES 

Isokinetic control 

Automatic Isokinetic Sampler 

Constant sampling 

Velocity measurement 

Impactor sampling 

Sampling data saving 

No limit of memory 

all seconds data-storage 

Data import to Excel 

P 

since1924 

Paul Gothe 

Sampling Technique 

The ITES is an automatic control unit for 

isokinetic sampling of particulate matter, gases, 

PM 2.5/10 and dioxin sampling. 

The system consists of three separated units: 

- an intelligent controller 

- case with external sensor placed at the probe 

- corrosive resistant frequency controlled pump. 

Operate with powerful gas tight pump. 

Working range: 0.5 .. 4 m³/h 

Suction rate at 800 hPa: 4 m³/h 

Simple programming. 

Sampling with filter devices according to EN, ISO 

and VDI Standards. 

C 

B 

F 

D 

Isokinetic Control Unit ITES 

On the sampling spot: pitot and thermocouple sensor placed at the probe 

and up to 80 m far away can placed the drying tower, pump, controller and PC 

A 

E 

A 

B 

C 

D 

E 

F 

ITES controller 

8,5 kg 

external sensor 

1 kg 

pump 

9 kg 

drying tower 

3 kg 

Laptop 

combination 

probe with 

integrated 

Pitot tube and 

thermocouple 

ITES 

As supplement to existing systems 

With orifice technique 

Simple control menu 

With external alarm 

taking account of bypass flow 

Calculation sampling points 

Calculation density 

Calculation nozzle opening 

Calculation gas humidity 

ITES now with humidity measurement: 

With one Psychrometer can measure directly the gas humidity. 

Measurement processed automatically! With data report. 

Gas humidity [g/m³ and %] 

Dew point [°C/°F] 

All necessary data stored in data file 

and can directly open in spreadsheets: 

Difference pressure of the Pitot tube 

Gas velocity 

Volume flow rate nozzle and orifice 

Calculated isokinetic deviation 

Temperature of the duct 

Pressure of the duct 

Sampling point 

Time of recording 

Sampling volume (total and each point) 

Complete software controlled from standard Laptop 

Developed for Windows 7, 8 and 10 

Technical Features 

difference pressure sensor: 0,01..10 hPa size: 350 x 280 x 250 mm 

absolute pressure sensor: 40..130 kPa alarm output: 12 V 

temperature duct NiCr-Ni: 0 ..500°C supply: 230 VAC, 50 Hz 

operating temperature: -10..60°C weight ITES: 8,5 kg 

Siemens frequency converter external sensor 1 kg 

orifice range: 0.5 .. 4 m³/h 

pump (5.3 or 8.8 m³/h) 

stable steel casing 

Art.-No: 25.10 

Wittener Str. 82 - D-44789 Bochum - Tel.: +49-234-33 51 80 - Fax: +49-234-30 82 17 - Email: info@paulgothe.de - www.paulgothe.com 

Certified 

ISO 9001

92 Years 

Paul Gothe 

ITESAdvantage 

of the ITES 


not „all in one“ 

ideal for fast repacement 

short cable from 

probe to sensor 

P 

since1924 

Paul Gothe 


report direct to PC 

low weight because 

heavy pump separate 

sensor with different 

ranges availiable 

Control unit small and light, makes it easy portable, important if the access is very small. Special to 

whom wish want to carry only the control panel on stack platform and leave the pump on plant floor. 

Because of the high quality and last generation electronic-moduls inside the control unit it is 

simplified the maintenance. 

Separate sensor box for difference-, absolute pressure and temperature. 

The separate box can fixed at the end of the suction tube and allow a very short pressure line and 

the control unit with pump can place far away. 

Different sensor boxes can connect with the ITES to find individual solutions for special applications. 

Sensor transmitter can be programmed to the desired range. 

Gas-tight dry running rotary vane vacuum pump 

Particularly little maintenance requirements, resistant 

and highly efficient, 230V, more than 700 mbar 

vacuum, the pump is gas-tight, with vacuum 

manometer (-1 to 0 bar). 


Protection rating IP 55. 

Two pumps available: 

SB 6, range: 0 .. 5 m³/h, weight: 10 kg 

SB 10, range: 0 .. 8 m³/h, weight: 15 kg 

Main Characteristics: 

· all parameter can set manual 

important if it all goes wrong. 

Parameters and data saved directly on PC. In case of power shut down, the data are save! 

Stored report type: Detailed measurement report with punctual report and sampled point summary 

and second short report with only the average data for fast check of the data. 

Report format compatible with Microsoft Excel, SUN Open Office suite or any other spread sheets. 

Unlimited free update of the software. Every update contains more functionality. The data processing 

thanks to PC controlling is unlimited. 

· the software allow to manage the sampling 

in an easy and intuitive manner. 

· in accordance with UNI EN, US EPA and VDI 

· fast isokinetic control at any stack condition. 

· suction volume rate measurement with orifice. 

· autotest and anomalies management. 

· auto check at starting 

· leak test according EN 

· easy to accreditate 

· In-stack temperature and velocity measurement. 

Wittener Str. 82 - D-44789 Bochum - Tel.: +49-234-33 51 80 - Fax: +49-234-30 82 17 - Email: info@paulgothe.de - www.paulgothe.com 

Certified 

ISO 9001

Verbindungen ITES: Mögliche Varianten 

Connestions ITES: Possible variants 

1: Sensor box: 200 x 60 x 100 mm, 1 kg 

2: Drying Tower: Ø 160 x 400 mm, 3 kg 

3: Pump: 250 x 180 x 320 mm, 10 kg 

4: ITES: 350 x 280 x 250 mm, 8,5 kg 

5: Laptop 

5 

1 

A 2 

F 

4 

B 

3 

C 

D 

E 

A: Absaugschlauch: Sonde - Trockenturm (Länge frei wählbar) 

B: Absaugschlauch: Trockenturm - Pumpe (Länge frei wählbar) 

C: Absaugschlauch: Pumpe - Pulsationsdämpfer - ITES (Länge frei wählbar) 

D: Kabel: Signalausgang Sensoren (Staurohr - 4..20 mA), Länge bis zu 100 m 

E: Kabel: Frequenzsteuerung Pumpe: Länge max. 3 m 

F: RS 485 Kabel: ITES- Laptop: Länge bis zu 100 m 

A: Suction hose: Probe - Drying Tower (length can select free) 

B: Suction hose: Drying Tower - Pump (length can select free) 

C: Suction hose: Pump - pulsation damper - ITES (length can select free) 

D: Cable: Signal Output Sensor (Pitot Tube - 4..20 mA), Length up to 100 m 

E: Cable: Frequency Controlled Pump: Length max. 3 m 

F: RS 485 Cable: ITES- Laptop: Length up to 100 m 

Erstellt 

Kontr. 

c 

Datum 

copyrights by 


Wittener Str. 82 

44789 Bochum 

Tel.: 0234-335180 

Fax: 0234-308217 


Name 

Grodten 

Nachdruck und Vervielfältigung nur mit Genehmigung der Paul Gothe GmbH gestattet. 

Zeichnung und Prinzip ist Eigentum der Paul Gothe GmbH 

Duplication and reproduction only with permission of Paul Gothe GmbH. 

Drawing and schematic diagram is the property of Paul Gothe GmbH 

Zeichnungs-Nr.: 

1 

A 4

90 Years 

Paul Gothe 

ITES 

ITES 

Isokinetic control 


Constant sampling 

Velocity measurement 

Impactor sampling 

Sampling data saving 

No limit of memory 

all seconds data-storage 

Data import to Excel 

Humidity determination 

P 

since1924 

Paul Gothe 


Sensor box for Psychrometer 

for two thermometer and one static pressure 

ITES now with humidity-modul: 

In combination with a psychrometer can 

determine the gas humidity. 

Psychrometer 

two thermometer method for the 

determination of the humidity 

No calculation necessary! 

Operates automatically! 

With data record and result protocol! 

Flow chart during determination 

Result protocol: 

- standard humidity in g/m³ 

- humidity in g/m³ and % 

- dew point in °C 

- gas dry and wet temperature 

- flow chart 

Technical Features 

absolute pressure sensor: 40..130 kPa 

temperature dry NiCr-Ni: 0 ..200°C 

temperature wet NiCr-Ni: 0 ..200°C 

stable aluminium casing 

size: 206 x 105 x 60 mm 

supply: from ITES 

external sensor 1 kg 

Art.-No: 25.10-FH 

Wittener Str. 82 - D-44789 Bochum - phone:+49-234-33 51 80 - Fax: +49-234-30 82 17 - Email: info@paulgothe.de - www.paulgothe.com 

Certified 

ISO 9001




Product info 26: Gas Sampler 

since 1924 

Compact and robust gas-sampler 

for gas sampling up to 360 l/h, with up to 300 mbar vacuum. 

In a carrying-system (material: stainless steel-square-tube 15 x 15 mm) 

with handle. 

° drying tower (material: PVC, dimensions: Ø 75 mm x 170 mm), 

space for silica-gel: 0,6 l, 

° flowmeter range: 30-360 l/h, 

° diaphragm pump (vacuum: 800 mbar, 320 l/h, 230 V/ 0,27 A), 

° gas volume meter with thermometer (0,04 m³/h – 6 m³/h) 

° needle valve for gas flow regulation 

° with Gothe CP-Modul: 

constant flow by pressure fluctuation. 

Dimensions: 

~ 350 x 350, high: ~ 450 mm, weight ~14 kg. 

Single parts: Drying tower, diaphragm pump, CP-Modul, gas meter with flowmeter and needle valve 

constant flow with Gothe CP-Modul 

The integrated Gothe CP-Module holds constant the 

adjusted gas flow also if the pressure changes. 

E.g. 200 l/h adjusted by needle valve will be constant, if 

the pressure drop behind a filter increase from initially 50 

mbar to 250 mbar vacuum. 

vacuum [mbar] 

700 

600 

500 

400 

300 

200 

Gas sampler 

Art.-No.: 26.02-CP 

100 

0 

50 100 150 200 250 300 

gas flow [l/h] 

Performance MA 15 S 

16 

14 

12 

10 

8 

6 

4 

2 

0 

0 100 200 300 400 500 600 700 800 900 1000 

vacuum [mbar] 

www.paulgothe.de – Wittener Str. 82, 44789 Bochum, Tel: ++49-0234 - 33 51 80, FAX: ++49-0234 - 30 82 17 

gas volume [l/min]




Product info 26.03: Gas Sampler 

since 1924 

Compact and robust gas-sampler with rotary vane pump 

for gas sampling up to 2.4 m³/h. 

In a stackable carrying-system 

(material: stainless steel-square-tube 15 x 15 mm): 

° drying tower with condensate trap (material: 

PVC, dimensions: Ø 75 mm x 170 mm), space 

for condensate: 0,5 l, for silica-gel: 0,9 l 

° Stainless Steel valve for regulation 

° rotameter range: 0.2-2.4 m³/h 

° gas-tight dry running rotary vane vacuum pump 

(vacuum: 800 mbar, 3 m³/h, 230 V/ 1 A) 

° gas volume meter (BK 4) with thermometer 

range: 0,04 m³/h – 6 m³/h, accuracy: < 2%, 

with calibration certificate 

° protection filter and pulsation dumper 

° vacuum gauge to control the filter 

gas sampler: 26.03 

B 

Dimensions: 

340 x 340, high: 450 mm, weight ~14 kg. 

The rotary vane pump SA3TV (0,12 kW, 1 A) is gas tight 

that the flowmeter and the gas meter can place behind the 

pump and work without vacuum. For the calculation to 

standard condition must check only the temperature. 

A 

Gas sampler Art.-No.: 26.03 

flowmeter with 

valve 

drying tower: 

A: condensate trap 

B: silica-gel stuffing 

Performance SA3TV 

2,5 

2 

pump rate [m³/h] 

1,5 

1 

0,5 

0 

0 100 200 300 400 500 600 700 800 

vacuum [mbar] 

www.paulgothe.com – Wittener Str. 82, 44789 Bochum, phone: ++49-0234 - 33 51 80, FAX: ++49-0234 - 30 82 17




Product info: Pump 

since 1924 

Gas-tight corrosion resistant dry running rotary vane vacuum pump 

Particularly little maintenance requirements, resistant and highly 

efficient, 230 V, more than 600 mbar vacuum, can be installed in 

front of the gas meter because the pump is gas-tight (no wrong air < 

0,1%) with flow control valve, can be reduced down to 200 l/h (since 

the mass of gas is led within the cycle and the pump performance is 

not slowed down, the pump is particularly durable), with vacuum 

manometer (-1 to 0 bar). On/off switch, hose fast connector 



0 mbar (2,5 m³/h at -400 mbar) 

Weight ~ 10 kg, 220V, 2,3 A Art.-No.: 17.03 


0 mbar (5,0 m³/h at -400 mbar) 

Weight ~ 15 kg, 220V, 3,3A Art.-No.: 17.04 

Small vane-pump type SC5 

for pressure and vacuum in metaland 

plastic housing with power 

switch, cable and pneumatic 

connection. Particularly little 

maintenance requirements, 

resistant and highly efficient, can 

be installed in front of the gas 

meter because the pump is gastight 

(no wrong air < 0.1%) 

Vacuum max.: 

800 mbar, 

Suction volume (0 mbar): 4 m³/h, 

Suction volume (-200 mbar): 3 m³/h, 

Suction volume (-500 mbar): 1 m³/h, 

Weight: 

5,5 kg 

Size: 

230 x 136 x 125 mm 

Power supply: 

230 V / 1 A 

Pneumatic: hose olive Ø 6 to 10 mm 

Art.-No.: 17.02-SC5 

Robust membrane-pump type P-722/W 

for pressure and vacuum in metal- and plastic housing with switch on power cable and 

pneumatic connection. With integrated needle valve. 

Technical data: 

vacuum max: 

950 mbar, 

suction volume (0 mbar): 11 l/min, 

suction volume (-200 mbar): 08 l/min, 

suction volume (-500 mbar): 06 l/min, 

membrane: 

FKM; 

weight: 

4,6 kg 

size: 

265 x 100 x 155 mm 

power supply: 

230 V / 1 A 

pneumatic connection for hose Ø 6 auf 10 mm 

Art.-No.: 26.021-MP 





Product info: Vacuum Ejector 

since 1924 

Function: 

By approximately 5 bar pressure, the air gasflow in the nozzle of 

the ejector become faster to supersonic-velocity. The following 

expansion of the air behind the jet-exit generate a hypotension at 

the vacuum-entrance. 

Ejectors 

are suitable for the suction by means of compressed air. The 

delivery volume depends on the pressure of the compressed air and 

the reduced pressure at the suction side. The delivery includes a 

pressure-reducing valve with compressed-air link and pressure 

indication, a sleeve valve at the suction side for adjusting the 

suction volume and a sound absorber. 

Compressed-air link: quick-coupler, 

Suction side: quick-coupler 

Performance table: P = compr. air [bar], S = suction volume [m³/h], L = Air-consumption [l/min] 

P S L Art.-No.: P S L Art.-No.: P S L Art.-No.: 

5 2,1 50 18.CV10 5 9,0 180 18.CV20 5 23 350 18.CV30 

4 2,0 40 4 8,5 150 4 19 340 

3 1,5 30 3 7,5 120 3 16 300 

2 1,0 25 2 5,5 90 2 11 250 

app. Sizes in mm 

L H 

18.CV10 200 200 

18.CV15 230 200 

18.CV20 310 200 

18.CV30 390 200 

P 

V 

Paul Gothe - Bochum , Wittener Str. 8, 44789 Bochum - Germany - 

Tel.: ++49-(0)234-335180 FAX: 0234-30821, Email: post@paulgothe.de, http://www.paulgothe.de




Product info 41: Bubbler 

since 1924 

Bubbler / Washing bottles (volume: 250 ml, material: Duran) for gas sampling, Entrance = E, Exit = A 

Bubbler with frit D0 and check valve* 

E: Pan KS 19, A: Ball KS 19 Art.-No.: 42.03 

Bubbler with frit D0 

E: Pan KS 19, A: Ball KS 19 Art.-No.: 41.03 

E: Pan KS 19, A: smooth Art.-No.: 43.03 

Porosity D0: 160 – 250 µm 

Bubbler with impinger and check valve* 

E: Pan KS 19, A: Ball KS 19 Art.-No.: 42.03-I 

Bubbler with impinger 

E: Pan KS 19, A: Ball KS 19 Art.-No.: 41.03-I 

E: Pan KS 19, A: smooth Art.-No.: 43.03-I 

Spare parts for bubbler: 

Inlets: Bubbler Art. No+ ES, bottle without inlet: bubbler Art. No+ FL 

*Bubbler with check valve: 

This bubbler is used as the first bottle and shuts off when the sampling is 

terminated so that the liquid does not flow back into the suction pipe through the 

reduced pressure 

(does not seal completely!). 

Clamps for the KS 19 spherical joint connection (ball-pan): Art.-No.: 44.01 

Carrying box for bubbler 

Material: PVC, with an aluminium plate at the front for linking it to the filter 

device heater (for a direct link to a suction pipe the flange of the large heating 

is necessary). The washing bottles are held in position by a mobile perforated 

plate. For an extra charge: with links for water in- and outflow. 

Carrying box 

for 3 bubbler (1 bubbler-street), 

Length: ~490 mm, Width: ~100 mm, High: ~170 mm, Art.-No.: 45.01 

fixed at suction tube 

for 6 bubbler (2 bubbler-streets), 


for 9 bubbler (3 bubbler-street), 


Connecting flange 

for mounting the carrying box at the suction tube. 

Material: Aluminium Art.-No.: 45.04 





Product info 15: Gas Cooler 

since 1924 

Gas cooler with water separator 

for damp and vapour-saturated gases. The gas cooler is operated in front of the drying tower, in order to 

reduce the consumption of silica-gel. However, the application of a drying tower remains necessary. 

Developed for application on the spot: built extremely stable, with place to stand and cooling links. 

Completely with quick release hose connector. Out of a 2 mm stainless steel pipe. Composed of a cooling 

device and a water collecting vessel. 

Large gas cooler 

Cooling device: Ø 220 x 200 mm, approx. 3 m of cooling coil 

(tube 18 x 1.5 mm) with handle. Integrated water condensate trap for 7 litre 

with inspection glass, discharge cock, and gas connector, 

weight approx. 9,8 kg , size: 350 x 350 x 590 mm 

Art.-No.: 15.01 

Small gas cooler 

Cooling device: Ø 130 x 200 mm, approx. 3.5 m of cooling coil (tube 10 x 1 

mm) with handle. Integrated water condensate trap for 1 litre with inspection 

glass, discharge cock, and gas connector, 

weight approx. 4,4 kg, size: 195 x 190 x 570 mm. 

Art.-No.: 15.03 

cooling coil 

lateral water level display 

and drain cock for the condensate 


Paul Gothe Bochum 



Since 1924 

Product info: Dioxin Sampling Train 

Sampling Train for Organic Pollution Measurement (PCDD/PCDF) according to EN 1948-1 

The Adsorption-System – conform to the European Guideline EN 

1948-1- is constructed under the conception to combine different 

adsorption traps modular round the cooling vessel of the condensate 

trap. The special holder makes it easy to fix the suction tube at 

the spot and to change the sampling position. 

The improvement suggestions from our customer makes this 

sampling train easy in the handling and best prepared for the rough 

conditions on the spot. To minimized glass damage the necessary 

glass is covered by aluminium or PVC. 

Basic version: 

Cooled suction tube with cooled condensate and double adsorption trap 

with integrated plane filter. 

Presentation of the adsorption traps - gas flow: 

Beginning with the cooled suction tube, the gas flows at 

first through an ice water or by cooler cooled 

condensate trap (2 litre GL 45 brown glass flask). One 

high-grade steel grid makes sure that no ice can 

blocked the installation of the condensate flask. 

Followed by two adsorption traps with plane filter or 

from a droplet separator. The Titanium plane-filterholder 

is our standard plane-filter-holder and fit into the 

PVC-support, which has threads for the two adsorption 

traps. 

The PVC-support can fix at the cooling pot. 

The complete sampling line can be quick assembly and 

disassembly. 

Version: without droplet separator and with 500 ml bubbler as droplet separator 

Adsorption trap with holder Condensate flask Holder for condensate flask 


Paul Gothe Product-info Dioxins-sampling page: 

2/3 

Single parts of the PCDD / PCDF – Sampling line 

Holder with aluminum cooling jacket, complete 

swivelling aluminum pot (Ø 200 x 4 mm, l: 225 mm), with high-grade steel grid, cock for 

ice-water-mixture. 

Art.-No.: 30.1-E-X 

Cooling coil 

for the cooling with cryostat 

30.1-E-X 

Art.-No.: E-KS 

Condensate trap, complete 

made of DURAN (brown glass), 2 l with glass thread GL 45. With impinger (Duran), 

glass bent to next trap and with thermometer. 

Art.-No.: 30.0-E-X 

E-KS 

Droplet separator (bubbler), complete with holder 

Bubbler (Duran), 500 ml, in and out: glass thread GL 25, 

with glass connector 30.51 

30.0-E-X 

Art.-No.: 30.33-X 

30.033-X 

Adsorption trap for PU-foam or XAD 

Trap (Duran) complete with PVC-holder. Two adsorption traps for PU-foam or 

XAD-resin, with Titanium-Plane-Filter-Holder. Adsorption unit with exit thread G ¾ 

with hose quick-coupling. Complete with two closing caps for glass threads at the 

adsorption traps (GL 60). 

Art.-No.: 30.92 

Exchangeable adsorption unit 

Contains two Duran filter chamber, one PVC support for Titanium-Plane-Filter- 

Holder without Titanium-Plane-Filter-Holder and with two closing caps and 

seals. 

30.92 

Art.-No.: 30.923 

30.923 

Exchangeable filter chamber 

One Duran filter chamber with two closing caps with seals. 

Art.-No.: 30.916 

30.916 


Paul Gothe Product-info Dioxins-sampling page: 

3/3 

Single Parts: 

Condensate vessel 

30.0-E-GL-V 

Droplet separator 

30.41 

30.1-E-T-P 

Aluminum-pot 

30.1-E-H 

Holder 

Adsorption unit 

30.912 

30.912-Di 

30.1-E-N 

High-grade steel grid 

30.92 E-KS 

Cooling coil 

30.901 


Paul Gothe Bochum 



SINCE 1924 

Product info: Dioxin sampling line with heated filter 

Complete sampling train for manual measurement of 

PCDD and PCDF according to EN 1948-1. 

Version with heated filter 

The Adsorption-System – conform to the European Guideline EN 

1948-1- with heated probe and plane filter in one heated box in front 

of the condensate and XAD trap. Existing version for cooling probe 

can be easily converted to this version. The holder must be 

changed into a longer version. The plane filter between the two 

XAD traps is no longer necessary. 

Basic version: 

Heated probe with plane filter device in filter heater, downstream condensate and double XAD trap 

without further plane filter. 

Presentation of the gas flow: 

Beginning with the heated suction tube, the gas flows 

at first through the heated filter (our standard plane 

filter device) and the condensate trap cooled by ice 

water or by cooler. One high-grade steel grid makes 

sure that no ice can blocked the installation of the 

condensate flask. 

Followed by two adsorption traps. 

The PVC-support can fix at the cooling pot. 

The complete sampling line can be quick assembling 

and dismantling. 


Paul Gothe Product-info Dioxins-sampling Page: 

2/2 

Single parts of the PCDD / PCDF – Sampling line, for more details see info cooled version 

GL-threads: 

Cap 

Seal 

Gl 45 

30.0-E-Gl-O 30.0-E-Gl-D 

Gl 25 

30.013 30.014-10 

Gl 18 

30.68 30.69 

Gl 14 

Gl 14 Di-Gl-14 

Exchangeable adsorption unit 

Contains two Duran filter chamber, one PPH support for Titanium-Plane- 

Filter-Holder without Titanium-Plane-Filter-Holder and with two closing caps 

and seals. 

Art.-No.: 30.923 

30.923 

Exchangeable filter chamber 

One Duran filter chamber with two closing caps with seals. 

Art.-Nr.: 30.916 

30.916 




SINCE 1924 

DIN ISO 9001 

Simple Mini-Stack-Probe 

For the determination of mass concentration of dust from small scale furnaces. 

according to EN 303-5 and prEN 16510 

Example: chimney Ø




Product info A: Connecting parts and Adapter 

since 1924 

Bent 

for nozzles, 

bent R = 25 mm, tube 10 x 1 mm, 

Entrance: internal thread G ½, 

Exit: external thread G ½. 

Other threads are available. 

Material Stainless Steel (up to 500°C): 

Material Titanium (up to 400°C): 

Art.-No.: 2.01-A 

Art.-No.: 2.01-T 

Adapter 

Adapter 

to fixed the bent at suction tubes with exchangeable internal tube, with hole for 

tube 10 x 1 mm. 

Entrance: screw cap G ½ 

Exit: external thread G ½ with hole for tube 10 x 1 mm 



Art.-No.: 3.01-A 

Art.-No.: 3.01-T 

Adapter 

to fixed the bent at suction tubes with fixed internal tube 10 x 1 mm 





Art.-No.: 3.03-A 

Art.-No.: 3.03-T 

Adapter 

Connecting part for plane-filter-device VDI 2066, page. 7 or impactor and 

external thread G ½, e.g. behind bent 


Exit: external thread G ¾ with conical opening 



Art.-No.: 3.04-A 

Art.-No.: 3.04-T 


Adapter 

Increasing part 


to increase G ½ external thread to G ¾ external thread. 

Entrance: internal thread G ½ 

Exit: external thread G ¾ 



Art.-No.: 32.01-A 

Art.-No.: 32.01-T 

Reducing part 

to reduce G ¾ external thread to G ½ external thread. 

Entrance: internal thread G ¾ 




Art.-No.: 32.02-A 

Art.-No.: 32.02-T 

Adapter inner tube 

to fix the inner tube at the exit of the suction tube with exchangeable inner tubes, 

at both sides external thread G ½, one side with drilling for inner tube 

(10 x 1 mm) 

Entrance: external thread G ½ with drilling 




Art.-Nr.: 3.011-A 

Art.-Nr.: 3.011-T 

Connecting part for bubbler 

to connect bubblers behind G ½ threads. 

Entrance: internal thread G ½, 

Exit: spherical joint (ball) KS 19 


Art.-No.: 3.06-T 

Connecting part 

for one bubbler street. 

Entrance: spherical joint (pan KS 19), 

Exit: spherical joint (ball KS 19) 

Material Duran: 

Material Quartz: 


Art.-No.: 40.02-D 

Art.-No.: 40.02-Q 

Art.-No.: 40.02-T 

Substitute part 

This part has the length of the filter devices and can set for it. 

Entrance: internal thread G ½ 


Material Stainless Steel 

Material Titanium 

Art.-No.: 40.013-A 

Art.-No.: 40.013-T 

Closing cap for external thread G ½ 

Caps with seals to close G ½ threads, 

material: brass, with PTFE-Seal 

Art.-Nr.: 40.016-Z 

Sealing plug for G ½ internal thread Material Brass Art.-Nr.: 21003.004.2 


Adapter 

Gas distributor 


Gas distributor version 2010 


Exit: 2 x M 12 thread and 90° exit with external thread G ¾ 


Art.-No.: 40.019-T 

Spherical joint (ball) KS 19 for gas distributor version 2010 

Entrance: M 12 thread 

Exit: spherical joint (ball) KS 19 


Art.-No.: 40.019-T-KS 

Closing cap for gas distributor version 2010 


Exit: closing cap 


Art.-No.: 40.019-T-V 

Hose nozzle for gas distributor version 2010 


Exit: hose nozzle (6…10 mm hose) 


Art.-No.: 40.019-T-O 

possible variations: 

Connector with temperature sensor 

both side threads G ½ with Titanium encapsulated NiCr-Ni thermocouple. 




Art.-Nr.: 6.0-T-N 





Product info HMG: Pressure Measuring Instrument 

since 1924 

• for measurement of difference pressure with Pitot tubes 

• for measurement of overpressure and vacuum 

Description: 

The handheld pressure gauges Type HMG measures difference- and absolute 

pressure, relative pressure in air and non-aggressive gases. The value shown on 3,5- 

digit LC-display with 12,7 mm figure height. The pressure gauges reach a high 

reliability and precision. Power supply is a 9-V-battery type 6F22. The battery power 

control generates “low bat“ on the display if battery is empty. Pressure overload is 

shown by a red LED in the left margin of the LC-display. 

With fine adjustment of the zero point on the front. 

Each measuring instrument is delivered in addition of an individual calibration report. 


operating temperature range: 

-20 to +50°C 

supply: 

9 V DC 

pneumatic (sensor): 

2 connections for hoses ID Ø 4mm 

weight: 

190 g with battery 

protection: IP 54 

measuring medium: 

air and all other non-aggressive gases 

dimensions: 

85 x 160 x 31 mm 

range of 

pressure 

[mbar] 

overload 

[mbar] 

dissolution 

[% of final value] 

Temp.-error max. 


0-50°C 

Long-timestability 

[% of 

final value each 

year] 

reproducibility 


Art.-No.: 

0-10 350 0,8 1 0,5 0,2 HMG 10 

-2 - +8 350 0,8 1 0,5 0,2 HMG ND 

700-1100 

absolute 

3-fold 0,9 2,3 1 0,1 HMG B 





Product info DMU: Pressure Measuring Instrument 

since 1924 

• for measurement of difference pressure with Pitot tubes 

• for measurement of overpressure and vacuum 

Description: 

Pressure transmitters of the DMU measures overpressure, vacuum, difference- and 

absolute pressure in air and non-aggressive gases. With 4-20 mA output signal. The 

values are shown on a 3,5-digit LC-display with at figure height of 12,7 mm. Because 

of using piezo resistive cells pressure transmitter reaches high reliability and 

precision. It is suitable for wall- mounting installation. User is warned against 

overload pressure by a red LED on the front. 

For the zero adjustment must remove the small cover and must turn the scrwe with a 

screwdriver. 

Each measuring instrument is delivered in addition of an individual calibration report. 


operating temperature range: 

-20 to +50°C 

supply: 

230 VAC 1A 

pneumatic (sensor): 

2 connections for hoses ID Ø 4mm 

weight: 

200 g 

protection: IP 65 

measuring medium: 

air and all other non-aggressive gases 

dimensions: 

see drawing 

analog output: 

4-20 mA 

range of 

pressure 

[mbar] 

overload 

[mbar] 

dissolution 


Temp.-error max. 


0-50°C 

Long-timestability 

[% of 

final value each 

year] 

reproducibility 


Art.-No.: 

0-10 350 0,8 1 0,5 0,2 DMU 10 

0-100 350 0,5 1 0,1 0,1 DMU 100 

700-1100 

absolute 

Other ranges on request. 

3-fold 0,9 2,3 1 0,1 DMU B 





since 1924 

Product info: DM: Instrument for flow velocity with cylindrical Pitot tubes 

‣ Hand-held instrument for flow velocity with LUGA or cylindrical Pitot tubes. 

Application: 

- flow measurement with LUGA / cylindrical Pitot tubes 

- direct reading of the air flow speed and differential pressure 

- selectable damping 

- with analogue output 2 V 

Description: 

The following parameters can be entered: 

- Density 

- Factor of the pitot tube 

- Damping factor 

The hand held - flow meter DM can directly connect to the cylindrical Pitot 

tube (instead of the black LUGA display). 

The displayed flow velocities correspond to those of the former LUGA 

instruments. The Pitot tube factor is taken into account. 

Default Setting: 

Damping, density (1.2) and the Pitot factor for the cylindrical Pitot tube. 

Each instrument will be supplied with an individual calibration protocol. 

Technical Data: 

Operating temperature: -20 to + 70°C 

Medium: 

Air and all non-corrosive gases 

Power supply: 

U vers : 9 V block battery 6F22 

Output signal: 

Analog output: 0-2 V 

Connections: 

Electrical: Socket for jack 2-pin plug 

Pneumatic: 2 hose connections for 4 mm internal-Ø 

Weight: 

~ 190 g incl. battery 

Sizes: 

96 x 155 x 28 mm 

Pressurerange 

[hPa] 

overload 

capability 

[hPa] 

Range 

air flow 

velocity 

Art.-No.: 

0-2 375 1...13 m/s LUGA-DM-05 

0-20 375 4...40 m/s LUGA-DM-1 

www.paulgothe.de – Wittener Str. 82, D-44789 Bochum, phone: ++49-0234 - 33 51 80, FAX: ++49-0234 - 30 82 17




Produktinfo: Psychrometer 

since 1924 

Psychrometrischer Feuchtemesser. Die Temperatur 

eines mit einem feuchten Baumwollstrumpf 

überzogenen Thermometers ist infolge des Wärmeentzugs 

durch Wasserverdunstung niedriger als die 

Gastemperatur. Die Temperatur-Erniedrigung ist 

bei hinreichender Gasströmung am Thermometer 

(mindestens 1,5 m/s) nur vom Wasserdampfgehalt 

des Gases, dem Umgebungsdruck und seiner Temperatur 

abhängig. Man kann deshalb mit zwei 

Thermometern, von denen das eine befeuchtet ist, 

den Wasserdampfgehalt des Gases (relative oder 

absolute Feuchte) bestimmen. 

Damit es noch einfacher wird, bieten wir Ihnen ein 

Komplettsystem an: 

Psychrometer mit zwei NiCr-Ni und zwei Temperaturanzeigen 

für den direkten Anschluss an Absaugrohre 

mit G ½ Aussengewinde. Im Lieferumfang 

eine Excel-Datei zur Berechnung der Feuchte. 

Maximale Gastemperatur: 100°C. Gase über 100°C müssen 

unter 100°C abgekühlt werden, z.B. durch ein unbeheiztes 

Absaugrohr, welches entsprechend weit aus dem Kanal gezogen 

wird. Taupunkt muss unter 100°C sein. Für die sehr genaue 

Bestimmung sollten die beiden Temperaturen nicht weit 

auseinander liegen. 

Psychrometric measurement of the humidity. 

The temperature of a thermometer which is coated 

with a wet-wool-stocking is lower than the gas 

temperature, because of the heat-withdrawal 

through water-evaporation. By adequate gas-velocity 

at the thermometer (at least 1,5 m/s) depends the 

temperature-humiliation only from the water vapour 

pressure, the static pressure and his temperature. 

Therefore can use two thermometers, from which 

one is moistened, to determine the water content in 

the gas (relative or absolute humidity). 

For the simple use we offer a complete system: 

In the delivery capacity is one Psychrometer, ready 

for the mounting at the probe with G ½ thread, two 

NiCr-Ni with indicators for the temperature and one 

Excel file for the calculation of the humidity. 

Maximum of the gas temperature: 100°C. Gases more as 100°C 

must cooled down below 100°C, eg. by using a non heated 

suction tube which is at the end respectively outside from the hot 

duct. The dew point must below 100°C. For precise 

determination should the temperatures close together. 

dry temp. 

79,8 

°C 

53,4 

°C 

wet temp. 

ON/HOLD 

ON/HOLD 

°C/°F 

°C/°F 

for hoses 

Pump 

Beispiel mit Montage am Absaugrohr 

Example with mounting on probe 

for probe 

Technical data temperature indicator: 

Protection: IP 65 

Range: -64 .. 1370°C 

Accuracy: 1°C 

Resolution 

0,1°C 

Power: 

Battery 

Dimensions 

78 x 43 x 20 mm 

Technical data Psychrometer: 

cotton wick 

Water pot 

( t − t ) 

⎡ 

⎞⎤ 

⎢ ⎜ 

⎛ b ± p 

0,804 • E 

f 

− ½ • 

t f 

• ⎟⎥ 

⎣ ⎝ 

1013 ⎠ 

f = 

⎦ 

n 

⎡ 

( ) ⎛ b ⎞⎤ 

( ) ± p 

b ± p − E − ½ • t − t • ⎥ ⎦ 

⎢ f ⎜ t f ⎟ 

⎣ ⎝ 

1013 ⎠ 

Formel zur Berechnung der Feuchte 

Formula for the calculation of the humidity 

Dimensions: 

Material: 

Material water pot: 

Thermocouple: 

Fast Connector: 

260 x 230 mm 

Stainless Steel 

PVC 

2 x NiCr-Ni Type K 

for suction tube and hose 

Excel Datei zur Berechnung / Excel file for calculation 

www.paulgothe.com – Wittener Str. 82, 44789 Bochum, Tel: ++49-0234 - 33 51 80, FAX: ++49-0234 - 30 82 17




Suction pyrometer 

Productinfo: Pyrometer 

Since 1924 

For the determination of the temperature in the fire chamber (like demanded for the singularly test at chamber installations 

according to the emission act) is only interesting the convective part of the heat, and not the radiation-heat. Suction pyrometer 

can use for such determination. 

The thermocouple is in the front area of the suction pyrometer and shielded by ceramics-body’s to protect the thermocouple 

against the IR-radiation from the fire-combustion chamber. The hot exhaust gas will be sucked over the thermocouple. The 

suction pyrometer can be cooled by cooling water circuit. The sucked gas with the pyrometer can use for the measurement of the 

oxygen rate by an analyser. 

Composition of a sampling line: 

1. Cooled suction pyrometer with outer Ø 50 mm: 

For the measurement in high temperature area up to ca. 1600° C. Material: Titanium and 

Stainless Steel. The cooling water goes at first through a tube along the inner tube and after 

it at the outside wall. The thermocouple is in a separate liner that it can easy remove and 

cleaned. One gas tight connection for the thermocouple with Ø 3-4 mm. Water ports with 

fast connector for 19 mm hose and one closing valve. Gas port with G ¾ thread with fast 

connector for 13 mm hose. The ceramic shields are mounted in a bayonet socket and can 

changed very fast. 

Weight and bending: 

pyrometer 

cooling water 

cooling coil 

PU plug 

T 1.2 

Condensate trap 

ejector 

Length 

Weight 

Ti ( kg) 

empty / 

water 

Weight 

SS (kg) 

empty / 

water 

bending 

Ti (mm) 

bending 

SS (mm) 

2000 4 / 9 6 / 11 8 100 

3000 7 / 12 10 / 15 50 180 

4000 8 / 15 - 75 - 

5000 10 / 17 - 100 - 

6000 12 / 20 - 200 

2. Ceramic shields 

For the protection against the heat radiation can mounting with cement according VDI two 

ceramic shields or according to IFRF three ceramic shields in the bayonet socket and placed 

in the cooled front section of the pyrometer. The exchange of broken ceramic is now very 

easy. At the IFRF-Ceramics is the outer ceramic closed at the front, the sampling take place 

through a hole vertically to the gas flow. The inner ceramic surrounds complete the 

thermocouple. This caused thereby a slower temperature adjustment. For rough situations we 

can offer a bayonet socket with protection tube from heat resistance steal (up to 1200°C) in 

which the two VDI ceramics can placed. 

IFRF Version 

Pyrometer 

Thermoelement 

thermocouple 

VDI mit Schutzrohr / with protection tube 

VDI Version 

Führungsrohr mit Thermoelement 

liner for thermocouple 

Bayonet socket 

Art.-No.: 50.018 

Nennlänge / nominal length 

Absaugung 

Kühlwasser suction line 

cooling water 

~ 200 mm 

Fig.: IFRF-Ceramic (3-parts) Art.-No.: 50.091 

Fig.: 

Fig.: 

Bayonet with protection tube 

VDI-Ceramic (2-parts) 

Art.-No.: 50.19 Art.-No.: 50.09 



3. Ceramic cement for ceramic tube 

To fix the ceramics in the bayonet socket, volume: 250 ml., ready to 

use mixture. Permanent temperature up to 1600°C. 

Art.-No.: 50.09-C. 

4. Cooling Coil: 

In case of short suction pyrometer the temperature of the sucked 

gases can be higher as 80°C and melt the connected hose. The 

cooling coil protect at high suction rate the hoses. Art.-Nr.: E-KS-2 

5. Condensate trap 

The condensate from the cooled gas can be kept back with the drying 

tower to protect the suction parts. The gas flows in and out from the 

top. One PU-foam inside prevents that water can reach the exit. 

Art.-No. 16.011, 16.011-Z, PU-160-50. 

6. Ejector for the suction with pressed air 

For the correct measurement of the gas temperature must be the gas 

speed at the thermocouple more as 80 m/s. Ejectors are for this 

suction rates particularly well suited. The delivery volume depends 

on the pressure of the compressed air and the reduced pressure at the 

suction side. The delivery includes a pressure-reducing valve with 

compressed-air link and pressure indication, a sleeve valve at the 

suction side for adjusting the suction volume and a sound absorber. 

Art.: 16.011 

16.011-Z 

Entry tube 

Ejector 

Performance table: P = compr. air [bar], S = suction volume [m³/h], L = Air-consumption [l/min] 

P V L Art.-No.: P V L Art.-No.: P V L Art.-No.: 

5 2,1 50 18.CV10 5 9,0 180 18.CV20 5 23 350 

4 2,0 40 4 8,5 150 4 19 340 

3 1,5 30 3 7,5 120 3 16 300 

2 1,0 25 

2 5,5 90 

2 11 250 

18.CV30 

7. Matching hoses 

Hose for the water cooling (pressure resistance) 19 mm l.W., unit: meter (0,38 kg/m): Art.-No.: 31.01 

Suctionhose (pressure resistance)13 mm l. W., unit: meter (0,35 kg/m): Art.-No.: 31.02 





Product info: Prandtl-Pitot-Tube (L-Pitot-Tube) 

since 1924 

This Prandtl-Tube is suitable for measurements in aggressive gases and can be used without any 

correction-factor (VDI 2640, page 3). The velocity can calculate with a simple formula (see box). For 

the total pressure is the hole at the tip of the nose. The static pressure is three head-diameters from the 

tip. The difference pressure can be measured with a pressure-sensing device. The L-Pitot Tube 

described in ISO 10780 has a longer leg and can also be ordered to the same price like the Prandtl- 

Pitot-Tube. In this case use instead of the index "PR" the index "L", the Art.-number remains. 

Prandtl-Pitot Tube: 

Nominal 

length 

[mm] 

L 

Ø- Outer 

[mm] 

D 1 

Leg 

length 

[mm] 

(S) 

Leg 

length 

minimum. 

[mm] 

(S) 

Radius 

[mm] 

R 

Ø-Opening 

total 

pressure 

[mm] 

d 

Art.-No. 

Available 

Material * 2 

A: 1.4541, 

C: 1.4841 

T: Titanium 

300 3 38 38 6 0,9 PR-3- -A 

250 5 60 40 10 1,5 PR-5-1- -A 

500 5 60 40 10 1,5 PR-5-2- -A 

250 6 72 55 12 1,8 PR-6-1- -A 

500 6 72 55 12 1,8 PR-6-2- -A 

250 8 97 60 16 2,4 PR-8-1- -A 

500 8 97 60 16 2,4 PR-8-2- -A 

800 8 97 60 16 2,4 PR-8-3- -A 

250 10 121 65 36 3 PR-10-1- -A / -C / -T 

500 10 121 65 36 3 PR-10-2- -A / -C / -T 

1000 10 121 65 36 3 PR-10-3- -A / -C / -T 

500 15 181 130 40 4,5 PR-15-2- -A / -C / -T 

1000 15 181 130 40 4,5 PR-15-3- -A / -C / -T 

1500 15 181 130 40 4,5 PR-15-4- -A / -C / -T 

500 20 242 150 56 6 PR-20-2- -A / -C / -T 

1000 20 242 150 56 6 PR-20-3- -A / -C / -T 

1500 20 242 150 56 6 PR-20-4- -A / -C / -T 

2000 20 242 150 56 6 PR-20-5- -A / -C / -T 

2500 20 242 150 56 6 PR-20-6- -A / -C / -T 

3000 20 242 150 56 6 PR-20-7- -A / -C / -T 

3500 * 1 20 242 150 56 6 PR-20-8- -A 

4000 * 1 20 242 150 56 6 PR-20-9- -A 

4500 * 1 20 242 150 56 6 PR-20-10- -A 

5000 * 1 20 242 150 56 6 PR-20-11- -A 

* 1 These pitot-tubes fortify after approximately 200 mm on Ø 30 mm (D2). 

* 2 Material: stainless steel: 1.4541 up to 500 °C, stainless steel: 1.4841 up to 1000 °C, 

titanium up to 400 °C. 

L 

Exit of the pressure-tubes: olive for hoses Ø 6 - 10 mm 

Mounting for pitot-tubes 

The mounting is used for solidly installing a pitot-tube at the 

pipeline. Through solving of the stuffing box, the pitot-tube 

can push easy into each position and can be fixed afterwards 

again. Hint: The mounting must be installed during the 

manufacture of the pitot-tube. An additional montage, 

as well as dismantling is not possible. 

Art.-No.: 47.5 

S 

d 

D1 

p: difference pressure mbar 

d: density 

v = 

200 p 

d 





Product info: S-Pitot-Tube 

since 1924 

S-Pitot in accordance to ISO 10780: 1994 (E). Pitot-tube with calibration factor ~ 0,84. Each S-Pitot-tube is controlled in 

a flow test-system. If required a calibration-certificate can deliver - ISO 10780: 1994 (E). 

To calculated the velocity use following formula: 

200 p 

v = K. 

K: calibration factor; p: difference pressure mbar; d: density 

d 

The S- Pitot has an outer-tube for protection. If require a thermocouple 

can installed inside the protection tube (NiCr-Ni). 

Advantages: 

- big opening for the total pressure Ø 4 mm 

- small leg (for openings: > 30 mm) special small leg possible: 10 mm, ask for details 

Disadvantage: 

- to measure the static pressure is an additional tip tube necessary. 

Special edition with short legs are possible. Available leg length (d/D): 30 mm, 25 mm, 20 mm, 15 mm, 10 mm. 

30 mm S-Pitot-tube in accordance ISO 10780: 1994 (E) 

Length [mm] 

L 

Protection 

tube 

D 

Material 

1.4541: T max 500°C 

1.4841: T max 1000°C 

Titanium: T max 400°C 

Art.-No. 

with exchangeable 

Thermocouple 

NiCr-Ni type K 

Art.-No. 

500 30 x 2 mm 

1000 30 x 2 mm 

1.4541 

1.4841 

Titan 

1.4541 

1.4841 

Titan 

52.1-A-05 

52.1-C-05 

52.1-T-05 

52.1-A-10 

52.1-C-10 

52.1-T-10 

52.1-A-05-t 

52.1-C-05-t 

52.1-T-05-t 

52.1-A-10-t 

52.1-C-10-t 

52.1-T-10-t 

Holder for G 1½ 

1500 30 x 2 mm 

1.4541 

1.4841 

Titan 

52.1-A-15 

52.1-C-15 

52.1-T-15 

52.1-A-15-t 

52.1-C-15-t 

52.1-T-15-t 

2000 30 x 2 mm 

1.4541 

1.4841 

Titan 

52.1-A-20 

52.1-C-20 

52.1-T-20 

52.1-A-20-t 

52.1-C-20-t 

52.1-T-20-t 

2500 30 x 2 mm 

1.4541 

1.4841 

Titan 

52.1-A-25 

52.1-C-25 

52.1-T-25 

52.1-A-25-t 

52.1-C-25-t 

52.1-T-25-t 

3000 30 x 2 mm 

1.4541 

1.4841 

Titan 

52.1-A-30 

52.1-C-30 

52.1-T-30 

52.1-A-30-t 

52.1-C-30-t 

52.1-T-30-t 

3500 30 x 2 mm 

1.4541 

1.4841 

Titan 

52.1-A-35 

52.1-C-35 

52.1-T-35 

52.1-A-35-t 

52.1-C-35-t 

52.1-T-35-t 

4000 30 x 2 mm 

1.4541 

1.4841 

Titan 

52.1-A-40 

52.1-C-40 

52.1-T-40 

52.1-A-40-t 

52.1-C-40-t 

52.1-T-40-t 

S-Pitot tube without thermocouple 

S-Pitot tube with exchangeable thermocouple 





Product info: Pitot Tube - extensible 

since 1924 

With the extensible Pitot-tubes 40 x 1 mm can make velocity measurements in big chimneys 

without any transportation-problems. 

The Prandtl- or S-Pitot-Tube has 1'' external thread. The extensions can screwed easy together 

in the length you want. 

The exit of the pressure-tubes at the Prandtl- or S-Pitot -Tube can deliver with outer-Ø 6 mm 

smoothly, with hose-olive or with Swagelok connections. If hoses are used, they lie loose 

inside the extensions. The operating-temperature is dependent on the material of the hoses 

(silicone: 60 ..+ 180°C; Teflon (PTFE and PFA): -200 ..+ 260°C; Viton: -70 ..+ 300°C). 

If Swagelok-connections are chosen, stainless steel-inside-tubes (6 x 1 mm) can used for the 

pressure (up to 600°C). 

Prandtl-Pitot-Tube - extensible with G1- external threads (stainless steel) 

Ø D 

[mm] 

Ø-d 

[mm] 

Nominal 

length L 

[mm] 

Leglength 

[mm] 

Radius R 

[mm] 

Art.-No. 

Connection Version: 

smooth: -g 

Olive: -O 

Swagelok: -S 

10 

10 

3 

3 

500 

1000 

121 

121 

20 

20 

51-10-500- 

51-10-1000- 

-g, -O or -S 

15 

15 

4,5 

4,5 

500 

1000 

181 

181 

30 

30 

51-15-500- 

51-15-1000- 

-g, -O or -S 

20 

20 

6 

6 

500 

1000 

242 

242 

40 

40 

51-20-500- 

51-20-1000- 

-g, -O or -S 

S-Pitot-Tube – extensible with G1-external threads (stainless steel) 

Ø D: 

6 

length: 

L: 200 

Leg length S: 30 

Art.-No.: 51-S 

With integrated thermocouple NiCr-Ni:: 

Art.-No.: 51-ST 

Extensions 

(stainless steel 40 x 1 with G1-thread) 

Inox-inner tube (6 x 1 mm) 

with Swagelok-connections 

(you require 2 inner tubes per extension) 

Length 

[mm] 

Art.-No.: Length [mm] Art.-No.: 

(1 Paar) 

1000 51.1-1 1100 51.2-1 

1500 51.1-15 1600 51.2-15 

2000 51.1-2 2100 51.2-2 



PAUL GOTHE – GmbH 


Product info Z: Cylindrical-Pitot-Tube (according to VDEh) 

This cylindrical pitot-tube is suitable for measurements in tube-systems with small openings. 

This pitot-tube has a factor of c = 0,79 .. 0,83 (see calibration certificate). 

The velocity can calculated with a simple formula. 

since 1924 

Advantage: 

Disadvantage: 

fits through openings with Ø 15 mm. 

Sensitively when contorting over an axis vertically to the direction of the flow. 

In small tube-diameters (< 100 mm) faulty-measurement through tube-wall-effects. 

Accuracy less than 5% only with matching factor. 

The static pressure is grasped at the top. The total-pressure (dynamic + static pressure) is grasped at a hole against the 

flow direction. The difference pressure can be measured with all manual gauges or digital difference-pressure-measuring 

instruments. 

Cylindrical Pitot Tube: 

nominal 

length 

[mm] 

Ø-outer 

[mm] 

Art.-No. available material * 1 

A = 1.4541: T max 500°C 

C = 1.4841: T max 1000°C 

T = Titanium : T max 400°C 

1000 15 53.15-3- -A / -C/ -T 

2000 20 53.20-5- -A / -C/ -T 

* 1 material: stainless steel: 1.4541 up to 500 °C, material: stainless steel: 1.4841 up to 1000° C, 

material: titanium up to 400° C. 

p: diff. pressure mbar 

δ: density 

c: factor 

200 • ∆p 

v = C • 

δ 

Exit of the pressure tube: hose-olive for hoses with inner-Ø 6 up to 10 mm tube 10 x 1 smooth. 

Other lengths can be manufactured on inquiry. 

Mounting for Pitot-tubes 

The mounting is used for solidly installing a pitot-tube at the pipeline. 

Through solving of the stuffing box, the pitot-tube can push easy into 

each position and can be fixed afterwards again. 

Art.-No.: 47.5 



PAUL GOTHE – GmbH 

Manufacturer of Emissions-Control-Technology 

Sampling of TAR and Particles in flowing Gases 

Measurement of Tar and Particles in Product Gases 

according to CEN Draft (CEN/BT/TF 143) 

Method: Isokinetic sampling according to EN 13284-1, 

Out-Stack-Filtration (thimble filter according to VDI 

2066, 

for glas faser thimbles (inner diameter Ø 26,8 x 68 mm), 

or quartz thimbles (inner diameter Ø 26,8 x 68 mm). 

Sampling modul (TAR collection) in insulated box for 

cooling: In one separation box for water are two 

impinger bottles and one bottle with glass frits (250 ml), 

follows from three bottles with glass frits (250 ml) 

separated in a box with cooling coil to cool down the 

water bath by a cooler. Fixed at the box is a back up 

VOC sampling trap. Space for XAD in VOC-trap: 

Ø 60 x ~ 90 mm with glass frit and GL-60-glass-thread. 

since 1924 

Sampling Train according to CEN Standard 

Tar collecting device 

Cooling and Sampling device with bubbler and VOC 

Suction tube with valve, filter with thermocouple 

and cooling coil 

VOC-Adsorption Trap 

Suction tube with holder and heater for the filter 



PA UL GOTHE GmbH 


Product info: Heated Gothe-Gas Sample Probe 

since 1924 

· Optimum operational reliability 

· Universal applicability 

· Easy installation 

· Problem-free maintenance 

· Small stagnant space 

· Proven technology by Gothe 

filter element 

The Gothe gas sample probes can use for 

continuous gas sampling in high dust content, 

temperatures and humidity. The probe can 

combine with one preliminary filter and a main 

heated filter with can change without dismounting 

the complete gas sample probe. 

Designed is this probe for easy installation, 

reliable operation, trouble-free maintenance and 

universal applicability. Depending on the 

application, different prefilters with G ½ thread 

and main filter, not included in the scope of 

delivery of the probe, can used. 

The main filter element is placed in housing with 

low stagnant space and can exchange with simple 

tools and it is not necessary to remove the sample 

line, thus avoiding contamination of the clean gas 

path and also maintaining the integrity of the 

system. 

The special high performance heating cartridge 

permits controlled heating of the complete filter 

housing and probe up to 300°C. This ensures 

reliable operation external to the process 

preventing the temperature falling below the dewpoint, 

as requested 180°C in the Standard. 

Suction Tube: 

With Ø 25 mm, fixed inner tube with 6 mm 

internal diameter, entrance: internal thread G ½, 

electrical heated with high performance heating 

cartridge (~ 400 W), material: Stainless Steel, 

length: 1000 mm, 1500 mm or 2000 mm. 

Filter Heater: 

Electrical heated with high performance heating 

cartridge ~ 400 Watt (230 V), length: ca. 200 mm, 

Ø 110 mm, with isolation, Stainless Steel 

calibration gas connector: Swagelok 6 mm, 

Stainless Steel suction gas connector: Swagelok 6 

mm with holder for heated sampling line. Material 

heater: Aluminum. Material in contact with gas: 

Stainless Steel. 

Temperature Controller 

Temperature setting: 50..300°C, with 10°C 

increments. The controller is mounted at the 

heater in one aluminum box with switch signal 

lamp 

The temperature is controlled by an integral 

compact design capillary sensor thermostat. The 

calibration gas can be injected in front of the filter 

to be sure that it has the same circumstance as the 

sampling gas. 





Product info: HF-sampling according to ISO 15713 

since 1924 

Sampling HF according to ISO 15713 with bubbler: 

Sampling with filter IN-Stack: 

Bent, inner tube and filter from Monel, 

bubbler from Quartz 

filter device 

for plane filter 

Sampling with filter OUT-Stack, 

if droplets in the duct 

Bent, inner tube from Monel, 

heated plane filter (Titan) and 

bubbler from Quartz 

Single parts 

Gooseneck bent from Monel: 

Bent exit: drilling for inner tube and thread G ½, 

Material Monel (up to 500°C): Art.-No.: 2.07-K-M 

Nozzle for gooseneck bent from Monel: 

Openings: 6, 8, 10, 12 and 14 mm 

Exit: M 12 x 1 mm 

Material Monel (up to 500°C): 

Art.-No.: 2.07-D-A-M 

Filter device from Monel for IN-Stack sampling: 

One part with Viton-O-Ring, thread G ½ with drilling for inner tube 

can use only in combination with gooseneck bent 2.07-K-M. 

Material Monel (up to 500°C): Art.-No.: 7.02-M 

Plane filter for Monel filter 

Quartz fibre filter Ø 18 mm, 10 pc, Art.-No.: QF-PF-18-C 

Inner tube for probe 

Material Monel (up to 500°C): Art.-No.: 5.23-M-Länge 

Sperical Joint (Ball) KS 19 

Part from full material with welding on 10 x 1 mm tube 

Material Monel (up to 500°C): Art.-No.: 5.23-M-KS 

Connection part 

G ½ thread - KS 19 pan (sperical joint), 

Material Monel (up to 500°C): Art.-No.: 3.06-LM 





Product info: Droplet Probe according to VDI 3679, Part 3 

The droplet probe can use for the measurement of the droplet diameter behind wet separators. 

since 1924 

Impaction plate drawn back 

This is a probe for the impactor method according 

to VDI 3679, part 3, section 5.3.2.1 to measure 

the sizes from water droplets in a gas flow. 

The impaction plate are exposed to the dropletladen 

gas stream for a defined period of time in 

such a way that the gas flow is orthogonal to the 

impaction plate, i.e. they makes use of the droplet 

velocity for sampling. 

The impactor plate is coated with fine particulate 

layer from MgO or soot so that the droplets are 

visualized as craters. The correlation between the 

crater diameter and the causal drop diameter must 

be determined by calibration tests. 

These calibration tests are not in the delivery 

capacity. 

The impactors are then microscopically evaluated 

by a classifying count of the droplet traces. This 

method can use for droplets bigger as 5 - 15 µm. 

Attention, no manual for the calibration tests or 

for the measuring methods in the delivery 

capacity. 

Previous studies showed the following 

relationship between crater and droplet 

diameter: 

With: 

F: factor, 

Q j : diameter real droplet, 

D j : diameter crater droplet 

The flow velocities must be above approximately 

2 m/s and the impaction plate must heat up with a 

hot fan above dew point. 

It is important to have specific expertise. 

Seminars for the measuring methods can offer. 

Droplet probe with extension 

Slider at the probe exit 





Product info: hose and connector 

since 1924 

Quick release hose connector 

quick release hose connector, big, material: chromized brass, 

internal thread G ¾, 

for hose male: 34.02 and 34.03 Order-No.: 34.01 

quick release hose connector, small, material: chromized brass, 

internal thread G ½, 

for hose male: 34.05 Order-No.: 34.04 

hose connector material: chromized brass, 

for ¾"-hose ( I.-Ø 19 mm ), 

for female connector : 34.01 Order-No.: 34.02 


for ½"-hose (I.-Ø. 13 mm ), 

for female connector: 34.01 Order-No.: 34.03 


for ½"-hose (I.-Ø. 13 mm ), 

for female connector: 34.04 Order-No.: 34.05 

hose connector, two parts Internal thread G ¾ (screw cap ), 

for ¾"-hose 

stainless steel 

titanium 

hose connector, two parts Internal thread G ½ ( screw cap ), 

for ½''- hose 

stainless steel 

titanium 

Hoses 

Order-No.: 34.10-A 

Order-No.: 34.10-T 

Order-No.: 34.11-A 

Order-No.: 34.11-T 

hose 19 x 4 mm, 

for vacuum Order-No.: 31.01 

temperature: -40 to + 120°C 

hose 13 x 3 mm, 

for vacuum Order-No.: 31.02 


Difference pressure hose 

silicon hose 9 x 2 mm Order-No.: 31.031 


silicon hose 5 x 1,5 mm Order-No.: 31.0421 


PVC-hose 9 x 2 mm Order-No.: 31.041 


viton-hose 5 x 1,5 mm 

temperature: -20 to + 300°C Order-No.: 31.063 


Transportkiste / transport box 

80 x 60 x 43,5 cm 

80 x 60 x 33,5 cm 

77 x 75 x 39,7 cm 

77 x 75 x 29,7 cm 

39,7 cm 

29,7 cm 

80 x 60 x 43,5 cm 

80 x 60 x 33,5 cm 

77 x 75 x 39,7 cm 

77 x 75 x 29,7 cm 

39,7 cm 

29,7 cm 

Verschließbar / lockable 

mit Rastereinlage für 24 Waschflaschen 

oder mit Schaumstoff-Zuschnitt nach Wunsch 

with grid inlay for 24 bubblers/impinger 

or with foam cutting as requested 


Wittener Straße 82 

44789 Bochum 

Tel.: 0234-33 51 80 

Fax: 0234- 30 82 17 

info@paulgothe.de 

www.paulgothe.de 


Transportkiste 



Be/Rd

Sterische Vorteile vom S-Pitot bei der 

Kombinationssonde: 

Durchgang durch eine G 3" Muffe mit 

Staurohr in Schwanenhalsform (Prandtl) 

und S-Form. 

Steric features of S pitot tube in 

combination probe: 

Passing through G 3 sleeve with Pitot tube 

in gooseneck shape (Prandtl) and S-shape. 

Kombinationssonde mit Prandt-Staurohr in einer 

G3" Muffe. 

Hier bleibt wenig Platz. 

Die Sonde muss genau positioniert werden. 

Combination probe with Prandtl Pitot tube in G3 

sleeve. 

This leaves little space. The probe must be 

positioned accurately. 

Kombinationssonde mit S-Pitot-Staurohr in einer 

G3" Muffe. 

Hier ist deutlich mehr Platz. 

Die Sonde kann leichter eingebracht werden. 

Combination probe with S Pitot tube in G3 sleeve. 

Here is significantly more space. The probe can be 

readily inserted. 

Erstellt 

Kontr. 

c 

Datum 

copyrights by 


Wittener Str. 82 

44789 Bochum 

Tel.: 0234-335180 

Fax: 0234-308217 


Name 

Grodten 



Duplication and reproduction only with permission of Paul Gothe GmbH. 

Drawing and schematic diagram is the property of Paul Gothe GmbH 


Information-Combi-probe with Pitot-Tube 

1 

A 4




Product Info: Gooseneck Nozzle 

SEIT 1924 

The gooseneck curve with nozzle is developed for small openings. 

Depending on the bent curve fits it through a thread. 

G 2 

G 2½ 

G 3 

56,6 mm 

72,2 mm 

84,9 mm 

Opening (core diameter) from 

tube threads according to DIN ISO 228, part 1 

Gooseneck curve with fixed welded nozzle (Art.-No.: 2.05): 

nozzle 

opening 

according to 

EN 13284 


opening 

G 2 

opening 

G 2½ 

opening 

G 3 

4-6 mm No 51 mm 


10-14 mm No 51 mm 

15 mm No 57 mm 

16 mm No 58 mm 

18 mm No 65 mm 

19 mm No 66 mm 

Standard gooseneck curve with exchangeable nozzle: 

(Art.-No.: 2.07-K, S: 42 mm) 

nozzle 

opening 

according to 

EN 13284 


opening 

G 2 

opening 

G 2½ 

opening 

G 3 

4-14 mm Yes 77 mm 



Short gooseneck curve with exchangeable nozzle: 

(Art.-No.: 2.07-KV, S: 30 mm) 

nozzle 

opening 

according to 

EN 13284 


opening 

G 2 

opening 

G 2½ 

opening 

G 3 

4-6 mm No 65 mm 

8-10 mm Yes 65 mm 

12-14 mm No 65 mm 

15 mm No 69 mm 

16 mm No 72 mm 

18 mm No 77 mm 

19 mm No 83 mm 

20 mm No 85 mm 


Article list Seals - Paul Gothe GmbH, Wittener Straße 82, 44789 Bochum 

Seals 

Art.-No. 

Text 

Di-10-G. Seal (32/38) 

Seal no. 10, for filter husk (9.0), material: Graphitize aramid-composite material (applicable up to 

max. 400° C) 

Di-10-M. Seal (32/38) 

Seal no. 10, for filter husk (9.0), material: Aramid-composite material (applicable up to max. 400° C) 

Di-10-N. Seal (32/38) 

Seal no. 10, for filter husk (9.0), material: Nyhalit (applicable up to max. 300° C) 

Di-10-T. Seal (32/38) 

Seal no. 10, for filter husk (9.0), material: Teflon (applicable up to max. 200° C) 

Di-11-G. Seal (30/38) 

Seal no. 11, material: Graphitize aramid-composite material (applicable up to max. 400° C) 

Di-11-M. Seal (30/38) 

Seal no. 11, material: Aramid-composite material (applicable up to max. 400° C) 

Di-11-N. Seal (30/38) 

Seal no. 11, material: Nyhalit (applicable up to max. 300° C) 

Di-11-T. Seal (30/38) 

Seal no. 11, material: Teflon (applicable up to max. 200° C) 

Di-12-G. Seal (43/49) 

Seal no. 12, for plane-filter-holder Ø 45 mm, material: Graphitize aramid-composite material 

(applicable up to max. 400° C) 

Di-12-M. Seal (43/49) 

Seal no. 12, for plane-filter-holder Ø 45 mm, material: Aramid-composite material (applicable up to 

max. 400° C) 

Di-12-N. Seal (43/49) 

Seal no. 12, for plane-filter-holder Ø 45 mm, material: Nyhalit (applicable up to max. 300° C) 

Di-12-T. Seal (43/49) 

Seal no. 12, for plane-filter-holder Ø 45 mm, material: Teflon (applicable up to max. 200° C) 

Di-13-G. Seal (40/47) 

Seal no. 13, plane-filter-holder Ø 45 mm, material: Graphitize aramid-composite material 


Di-13-M. Seal (40/47) 

Seal no. 13, plane-filter-holder Ø 45 mm, material: Aramid-composite material (applicable up to 

max. 400° C) 

Di-13-N. Seal (40/47) 

Seal no. 13, plane-filter-holder Ø 45 mm, material: Nyhalit (applicable up to max. 300° C) 

Di-13-T. Seal (40/47) 

Seal no. 13, plane-filter-holder Ø 45 mm, material: Teflon (applicable up to max. 200° C) 

Di-14-G. Seal (46/55) 



Di-14-M. Seal (46/55) 


max. 400° C) 

Di-14-N. Seal (46/55) 


Di-14-T. Seal (46/55) 


Di-15-G. Seal (48/56) 



Di-15-M. Seal (48/56) 


max. 400° C) 

Di-15-N. Seal (48/56) 


Di-15-T. Seal (48/56) 


Di-16-N. Seal (100/110) 

Seal no. 16, for plane-filter-holder Ø 110 mm, material: Nyhalit (applicable up to max. 300° C). For 

Plane filter device Ø 110 mm. 

Di-16-S. Seal (100/110) 

Seal no. 16, for plane-filter-holder Ø 110 mm, material: Silicone (applicable up to max. 200° C). For 


Date: 28.01.2016 Page: 1


Art.-No. 

Di-17-N. Seal (100/110) 

Seal no. 17, for plane-filter-holder Ø 110 mm, material: Nyhalit (applicable up to max. 300° C). For 


Di-17-S. Seal (100/110) 

Seal no. 17, for plane-filter-holder Ø 110 mm, material: Silicone (applicable up to max. 200° C). For 


Di-2-M. Seal (32/48) 

Seal no. 2, for sero pressure probe part 1/50 or dust collector, material: Aramid-composite material 


Di-2-N. Seal (32/48) 

Seal no. 2, for sero pressure probe part 1/50, material: Nyhalit (applicable up to max. 300° C) 

Di-25-M. Seal (26/38) 

for external thread G ¾, material: Aramid-composite material (applicable up to max. 400° C) 

Di-25-N. Seal (26/38) 

for external thread G ¾, material: Nyhalit (applicable up to max. 300° C) 

Di-25-T. Seal (26/38) 

for external thread G ¾, material: Teflon (applicable up to max. 200° C) 

Di-27-M. Seal (20/26) 

Seal no. 27, for all screws with external thread G ½, material: Aramid-composite material 


Di-27-N. Seal (20/26) 

Seal no. 27, for all screws with external thread G ½, material: Nyhalit (applicable up to max. 300° 

C) 

Di-27-T. Seal (20/26) 

Seal no. 27, for all screws with external thread G ½, material: Teflon (applicable up to max. 200° C) 

Di-30-T. Seal (40/45) 

Seal no. 30, material: Teflon (applicable up to max. 200° C). For the use between filter and fixing 

ring. 

Di-31-T. Seal (45/50) 

Seal no. 31, material: Teflon (applicable up to max. 200° C). For the use between filter and fixing 

ring. 

Di-32-N. Seal (16/43) 

Seal no. 32, for zero pressure tube with screw cap Ø 50 mm or extensible combi probe, material: 

Nyhalit (applicable up to max. 300° C) 

Di-34-A. 

Text 

Spacer (11/17) stainless steel ring 

spacer to protect the seal, material: stainless steel, weight: ca. 0,012 kg 

Di-34-Gu. Seal (10/18) 

O-Seal no. 34, material: Rubber 

Di-34-T. Spacer (11/18) 

Material: Titanium (applicable up to max. 400 °C) 

Di-34-Vi. Seal (10/18) 

Seal no. 34, material: viton (200° C) 

Di-35-G. Seal (18/38) 

Seal no. 35, material: Graphitize aramid-composite material (applicable up to max. 400° C). For the 

use in filter device 7.01 and 7.11. 

Di-35-M. Seal (18/38) 

Seal no. 35, material: Aramid-composite material (applicable up to max. 400° C). For the use in 

filter device 7.01 and 7.11. 

Di-35-N. Seal (18/38) 

Seal no. 35, material: Nyhalit (applicable up to max. 300° C). For the use in filter device 7.01 and 

7.11. 

Di-35-T. Seal (18/38) 

Seal no. 35, material: Teflon (applicable up to max. 200° C). For the use in filter device 7.01 and 

7.11. 

Di-45-N. Seal (52/58) 

Seal no. 45, material: Nyhalit (applicable up to max. 300° C). For Impactor. 

Di-5-M. Seal (24/50) 

Seal no. 5, for zero-pressure-tube GT- with screw cap Ø 55 mm, material: Aramid-composite 

material (applicable up to max. 400° C) 

Di-51-G. Seal (32/39) 


Di-51-M. Seal (32/39) 


Di-51-N. Seal (32/39) 


Date: 28.01.2016 Page: 2


Art.-No. 

Di-52-G. Seal (35/43) 


Di-52-M. Seal (35/43) 


Di-52-N. Seal (35/43) 


Di-55-G. Seal (13/18) 

Seal no. 55, material: Rubber. Fast coupling G ½. 

Di-56-G. Seal (11/24) 

Seal no. 56, material: Rubber. Fast coupling G ¾. 

Di-56-V. Seal (11/24) 

Seal no. 56, material: Viton. Fast coupling G ¾. 

Di-60-N. Seal (58/72) 

Seal no. 60, material: Nyhalit (applicable up to max. 300° C). Big tubular filter. 

Di-61-N. Seal (61/72) 

Seal no. 61, material: Nyhalit (applicable up to max. 300° C). Big tubular filter. 

Di-63-S. Seal (40/55) 

Seal no. 63, material: Silicone (applicable up to max. 200° C). Glass plane filter. 

Di-64-Gum. Seal Drying tower16.011 (145-155) 

O-Ring Seal No. 64, for drying tower, Material: Rubber, weight ca. 0,02 kg. 

Di-65-Gum. Seal (68/78) 

O-Ring Seal No. 65, Material: Rubber, for small drying tower. 

Di-66-G. Seal (22/38) 

Seal No. 66 (for tubular-filter device below conus), material: Graphitize aramid-composite material 


Di-66-M. Seal (22/38) 

Seal No. 66 (for tubular filter device below cone), Material: Aramid-composite material, ( applicable 

up to max. 400° C) 

Di-66-N. Seal (22/38) 

Seal No. 66 (for tubular filter device below cone), Material: Nyhalit, operating temperature up to 

max. 300° C 

Di-67-M. Seal (14/30) 

Seal No. 67, material: Aramid, (400° C). For thread with G 1. 

Di-68-M. Seal (40/50) 

Seal No. 66, Material: Aramid-composite material, ( applicable up to max. 400° C) 

between cyclone and dust collector 

Di-68-N. Seal (40/50) 

Seal No. 66, Material: Nyhalit, ( applicable up to max. 400° C) 

between cyclone and dust collector 

Di-7-N. Seal (32/50) 

Seal no. 7, for zero-pressure-tube GT- with screw cap Ø 55 mm, material: Nyhalit (applicable up to 

max. 300° C) 

Di-8-G. Seal (12/19) 

Seal no. 8, for all screws with internal thread G ½, material: Graphitize aramid-composite material 


Di-8-M. Seal (12/19) 

Seal no. 8, for all screws with internal thread G ½, material: Aramid-composite material (applicable 


Di-8-N. Seal (12/19) 

Seal no. 8, for all screws with internal thread G ½, material: Nyhalit (applicable up to max. 300° C) 

Di-8-T. Seal (12/19) 

Seal no. 8, for all screws with internal thread G ½, material: Teflon (applicable up to max. 200° C) 

Di-9-G. Seal (18/24) 

Seal no. 9, for all screws with internal thread G ¾, material: Graphitize aramid-composite material 


Di-9-M. Seal (18/24) 

Seal no. 9, for all screws with internal thread G ¾, material: Aramid-composite material (applicable 


Di-9-N. Seal (18/24) 

Seal no. 9, for all screws with internal thread G ¾, material: Nyhalit (applicable up to max. 300° C) 

Di-9-T. Seal (18/24) 

Seal no. 9, for all screws with internal thread G ¾, material: Teflon (applicable up to max. 200° C) 

Di-Imp. 

Seal-Set Impactor Johnas 

Seals for cascade impactor Johnas, consisting of 1 x seal no. 45 (52/58) Nyhalit, 1 x seal no. 15 

(48/56) aramid and 1 x seal no. 14 (46/55) aramid. 

Text 

Date: 28.01.2016 Page: 3


Art.-No. 

Di-P-M. 

Di-P-MG. 

Di-P-T. 

Text 

Packing cord mineral fibre 

Ø 4 mm, temperature-constant up to 400° C, unit: meter, weight: ~ 50 g / m 

Packing cord Graphitize mineral fibre 

Ø 4 mm, temperature-constant up to 500° C, unit: meter, weight: ~ 50 g / m 

Packing cord PTFE 

Ø 4 mm, temperature constant to 200° C, weight: ca. 0,02 kg / m. Unit: meter 

Material of the seals available in: 

- Aramid composite material (max. 400°C *) .............................................. Art. No: Di + M 

- Aramid composite material graphitized (max. 400°C *) ........................... Art. No: Di + G 

- Teflon (max. 220°C *) .............................................................................. Art. No: Di + T 

- Silicone (max. 200°C) ............................................................................... Art. No: Di + S 

- Nyhalit (max. 300°C *) ............................................................................. Art. No: Di + N 

Information to the sealing-material: 

Aramid-composite material: Aramid 

(known as Kevlar) is a high 

temperature-stable aromatic Polyamide 

fibre. These fibre don't melt, it is 

resistant against acids and organic 

solvents. Through admix of softeners 

(e.g. Rubber) the fibre stuck together 

and can use as seals. This mixture loses 

their softeners from 150°C and 

becomes fragile. The function as seal is 

still given until 400°C. After this 

thermal treatment, the seal can use not 

a second time, they are too brittle. By 

the treatment with graphite, the 

evaporation of the softeners is clearly 

delayed and the seal consequently 

reach a longer temperature-stability. 

Nyhalit: Material of Nyhalit becomes 

fragile at application until 300°C and 

cannot use a second time. 

Teflon: Teflon is thermal stable until 

250°C, becomes very soft from 200°C 

however and cannot use as a safe seal. 

Ø45 

Di 13 

Di 12 

Ø50 

Di 14 

Di 15 

Di 8 

Ø45 

Di 13 

Di 12 

Di 11 

Di 35 

Di 8 

Ø45 

Di 13 

Di 12 

Di 11 

Di 35 

Di 8 

Date: 28.01.2016 Page: 4

Information Threads 

Information about our Threads: 

We use the following: 

Whitworth Pipe Thread DIN ISO 228 BSP 

British Standard Pipe Thread, with sealant compound 

(parallel, cylindrical), external = G 

Nominal 

Diameter 

Major 

Diameter 

mm 

Minor Diamter 

Nut 

mm 

Tapping 

Drill Size 

mm 

TPI 

Pitch 

mm 

G 1/8" 9,73 8,85 8,80 28 0,907 

G 1/4" 13,16 11,89 11,80 19 1,337 

G 3/8" 16,66 15,39 15,25 19 1,337 

G 1/2" 20,95 19,17 19,00 14 1,814 

G 5/8" 22,91 21,13 21,00 14 1,814 

G 3/4" 26,44 24,66 24,50 14 1,814 

G 7/8" 30,20 28,42 28,25 14 1,814 

G 1" 33,25 30,93 30,75 11 2,309 

G 1 1/8" 37,90 35,58 35,30 11 2,309 

G 1 1/4" 41,91 39,59 39,25 11 2,309 

G 1 3/8" 44,32 42,00 41,70 11 2,309 

G 1 1/2" 47,80 45,48 45,25 11 2,309 

G 1 3/4" 53,74 51,43 51,10 11 2,309 

G 2" 59,61 57,29 57,00 11 2,309 

G 2 1/4" 65,71 63,39 63,10 11 2,309 

G 2 1/2" 75,18 72,86 72,60 11 2,309 

G 2 3/4" 81,53 79,21 78,90 11 2,309 

G 3" 87,88 85,56 85,30 11 2,309 

G 3 1/4" 93,98 91,66 91,50 11 2,309 

G 3 1/2" 100,33 98,01 97,70 11 2,309 

G 3 3/4" 106,68 104,30 104,00 11 2,309 

G 4" 113,03 110,71 110,40 11 2,309 

In special cases we can manufacture 

Whitworth Tapered Pipe Thread 

Whitworth Pipe Thread for pipes and fittings. Parallel 

female thread and tapered male thread (taper 1 : 16). An 

appropriate sealing compound can be used in the thread 

to ensure a leak-proof joint. 

Male Thread 

Diameter 

Female Thread 

Diameter 

Pipe Minor 

Diameter 

mm 

Pipe Major 

Diameter 

mm 

Tapping 

Drill Size 

mm 

TPI Pitch 

mm 

R 1/16" Rp 1/16" 3 7,723 6,561 28 0,907 

R 1/8" Rp 1/8" 6 9,728 8,566 28 0,907 

R 1/4" Rp 1/4" 8 13,157 11,445 19 1,337 

R 3/8" Rp 3/8" 10 16,662 14,950 19 1,337 

R 1/2" Rp 1/2" 15 20,995 18,631 14 1,814 

R 3/4" Rp 3/4" 20 26,441 24,117 14 1,814 

R 1" Rp 1" 25 33,249 30,291 11 2,309 

R 1 1/4" Rp 1 1/4" 32 41,910 38,952 11 2,309 

R 1 1/2" Rp 1 1/2" 40 47,803 44,845 11 2,309 

R 2" Rp 2" 50 59,614 56,656 11 2,309 

R 2 1/2" Rp 2 1/2" 65 75,184 72,226 11 2,309 

R 3" Rp 3" 80 87,884 84,926 11 2,309 

R 4" R 4" 100 113,030 110,072 11 2,309 

R 5" Rp 5" 125 138,430 135,472 11 2,309 

R 6" Rp 6" 150 163,830 160,872 11 2,309 

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Catalogue 2017

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