2 - Klamflex

PIPE COUPLINGS (PTY) LTD
sales@klamflex.com
www.klamflex.com
PRODUCT MANUAL
COUPLE WITH CONFIDENCE
The Largest Manufacturer of Pipe Couplings, Flange Adaptors,
Stepped Couplings, Dismantling Joints and related products in the Southern Hemisphere.
Still Coupling since 1962.
ARPAL
ISSUE: 0610

KEY FEATURES
1
HOTROLLED ASYMMETRIC STEEL T SECTION
(BS EN 10025 : 2004)
Free from circumferential welds providing integral strength.The offset T
profile facilitates a perfect seal on the gasket and straight line bolt travel.
2
PROFILED ROLLED STEEL SLEEVE
(SANS 1431 : 2003 / BS EN 10025 : 2004)
Allows angular deflection of the pipe ends due to a thinner mid section.
Rolled sleeve ends match the gasket profile exactly
3
EPDM GASKET with SELF CENTERING LIP
(SABS 974 : 1986 / BS EN 681-1 : 1996)
4
D CUP AS WELL AS CUP SQUARE HEAD LOW CARBON STEEL BOLTS
(SABS 1143 : 1977 / BS 970 - 1 : 1996)
1
3
2
5
5
NON TOXIC COATINGS AND GASKETS WITH BS 6920 CERTIFICATION
4
COMPANY PROFILE
Established in 1962 the company is now the largest manufacturer of pipe couplings, flange adaptors,
stepped couplings, dismantling joints and related products in the Southern Hemisphere. During the
period to 1992 the company manufactured Viking Johnson products under a licence agreement with the
Victaulic company of the U.K., the termination of which saw the emergence of Klamflex as a leading
international brand name.

LISTINGS
• ISO 9002 listed since 1986 Upgraded to ISO 9001 in July 2003.
• RVA : Accreduted Listing by the Dutch Council for certification.
• SANAS endorsed ISO 9001 listing.
• ARPAL approved since August 2002.
• South African Bureau of Standards Certificate of Registration.
• WRAS APPROVED RUBBER - EPDM - COMPONENTS.
• WRAS APPROVED COATINGS, PAINTS AND LININGS -
FACTORY APPLIED - PIPE AND FITTINGS COATINGS
QUALITY CONTROL
• Klamflex is an ISO 9001 : 2008 listed company.
• In-house production design, utilising the latest CAD systems,
supported by technical staff and finite element analysis
programmes.
• Stringent raw material quality control and certification from
international test laboratories.
• Product approvals held for many countries worldwide.
• In house quality inspection at all phases of production, with
Hydrostatic Test Facilities
• Millions of Klamflex products installed worldwide bear testament to
a long history of quality production.
THE MANUFACTURING PROCESS
Products are manufactured in accordance with AWWA C219-01 in
our 7000 sq m factory site which has recently been upgraded with
the installation of a new plant and equipment including the following:
• Modern shot blasting facility.
• The most modern fusion bonded epoxy plant available, for spray
and fluidised bed application.
• A state of the art CNC controlled sleeve rolling line.
• A customised follower rolling machine, CNC controlled for high
precision production and quality.
• The latest in plasma cutting equipment for fabricated specials.
PAGE
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INDEX
TOPIC
RANGER COUPLINGS
RANGER STEPPED COUPLINGS
RANGER END CAPS
GRIPPER COUPLINGS
DEDICATED COUPLINGS
STEPPED COUPLINGS
RANGER FLANGE ADAPTORS
DEDICATED
FLANGE ADAPTORS
GRIPPER FLANGE ADAPTERS
DISMANTLING JOINTS
SHOULDERED COUPLING
JUNIOR COUPLINGS
SOCKET STEEL FITTINGS
PIPE OD CHART

RANGER COUPLINGS
KLAMFLEX Ranger Couplings, are designed to join
pipes of various outside diameters with the same or different
nominal bore. The ability of KLAMFLEX Ranger
Couplings to join dissimilar pipe materials is a bonus
feature in both repair or permanent situations.
Corrosion protection for KLAMFLEX Ranger Products
is available in Fusion Bonded Epoxy, Red Oxide Primer
and Galvanised finish as standard. Optional coatings to
customer specifications are available on request.
KLAMFLEX Ranger Couplings have application in the
reticulation of potable water, waste water and sewage as
well as in the marine, mining, oil, gas and general engineering
sectors.
Moulded, circumferentially ribbed or specially profiled
gaskets, generally in EPDM or NBR materials, provide for
smooth installation by minimising contact friction.
KLAMFLEX Ranger Gaskets are designed to provide a
leak tight seal across the O.D. range per nominal size and
still allow for thermal expansion and contraction of the
pipe up to 5mm per gasket, facilitated through gasket
deformation.
To facilitate installation and avoid possible creep under
rising load, it is strongly recommended that the
KLAMFLEX Ranger Rubber Sealing Gaskets are well
lubricated with a suitable non toxic soap solution before
the introduction of the pipe.
KLAMFLEX RANGER COUPLING
SUITABLE FOR JOINING PIPES OF SIMILAR OR DISSIMILAR MATERIALS WITHIN THE O.D. RANGE.
USE AS A STRAIGHT COUPLING, OR IN PLACE OF A STEPPED COUPLING WITHIN THE O.D. RANGE
NOM.BORE
(mm/inch)
50/2
65/2.5
80/3
100/4
125/5
150/6
175/7
200/8
225/9
250/10
250/10
300/12
300/12
350/14
400/16
450/18
500/20
600/24
PIPE O.D.
RANGE(mm)
APPROX
MASS (kg)
59-72 2.9
72-85 3
88-103 4.2
109-128 4.6
138-153 4.8
159-182 7
192-210 9.2
218-235 10.2
230-247 16.6
250-267 18.2
272-289 16.2
315-332 23.6
322-340 19.8
374-391 28.2
417-437 26.4
480-500 33
526-546 35
630-650 46.8
PIPE MATERIAL SUITABILITY
STEEL (imperial+metric), UPVC, DI, CI, AC (imperial), ABS/DWV
STEEL (imperial+metric), UPVC, DI, CI, AC (imperial), ABS/DWV
STEEL (imperial+metric), UPVC, DI, CI, AC (imperial), ABS/DWV
STEEL (imperial+metric), UPVC, DI, CI, AC (cod), AC (imperial)
STEEL (imperial+metric), UPVC, DI, CI, AC (cod), AC (imperial)
STEEL (imperial+metric), UPVC, DI, CI, AC (cod), AC (cid), AC (imperial)
STEEL (imperial+metric), UPVC, CI, AC (imperial)
STEEL (imperial+metric), UPVC, DI, CI, AC (cod), AC (cid), AC (imperial), GRP
STEEL (imperial+metric), DI, AC (cod), AC (cid), AC (imperial)
STEEL (imperial+metric), UPVC, AC (cid)
STEEL (imperial+metric), UPVC, DI, CI, AC (cod), AC (cid), AC (imperial), GRP
STEEL (imperial+metric), UPVC, DI, GRP
STEEL (imperial+metric), DI, AC Class 12
DI, GRP, AC Class 6
DI, AC Class 6 and 12
DI, AC Class 6 and 12, UPVC
DI, AC Class 6 and 12
DI, AC Class 6, Imperial CI/CL
MAX WORKING PRESSURE: 16 BAR • SETTING GAP: 19mm • TOLERANCE ON ANGULAR DEFLECTION:
6 DEGREES • EXPANSION AND CONTRACTION RANGE: 0-10 mm • RECOMMENDED BOLT TORQUE: 60-80 mm
1

RANGER STEPPED
COUPLINGS
KLAMFLEX Ranger Stepped Ranger Couplings are
designed to join pipes of various outside diameters
with different nominal bores.
KLAMFLEX Ranger Stepped Ranger Couplings can
connect steel, ductile iron, UPVC, cast iron, asbestos
cement and other rigid pipe materials.
Corrosion protection is available in Fusion Bonded
Epoxy and Red Oxide Primer as standard. Optional
coatings to customer specifications are available on
request.
Gasket material is EPDM and designed to provide a
leak tight seal across the O.D. range allowing for thermal
expansion and contraction of the pipe. It is
strongly recommended that the rubber sealing gaskets
are well lubricated with a suitable non toxic soap solution
before the introduction of the pipe.
This practice will obviate the need for re-tightening
the fasteners after pressure testing, and further facilitate
the seating of the joint components.
NOMINAL
BORE
(mm)
PIPE OD RANGE
(mm)
APPROX
MASS (kg)
50/65 59-72 / 72-85
2.6
80/100 88-103 / 109-128
4.6
100/125 109-128 / 138-151 5.2
125/150 138- 153 / 159-182 6.4
150/175 159-210 / 192-210 7.2
175/200 192-210 / 218-235 12.4
200/200+ 218-232 / 230-247 16.8
250/250+ 250- 267 / 272-289 22.4
2

RANGER END CAPS
KLAMFLEX Ranger End Caps are manufactured
from our Ranger Couplings, therefore giving you
the versatility of using them on a variety of different
pipe OD’s and materials.
KLAMFLEX Ranger End Caps are therefore suitable
for all popular standard pipe sizes ranging
from 50mm to 300mm and are designed for the
use in air, water, sewer, and gas pipelines up to 16
Bar.
KLAMFLEX Ranger End Caps are supplied with
and EPDM rubber seal and coating can either be
Red Oxide or Fusion Bonded Epoxy.
KLAMFLEX Ranger End Caps can be manufactured
with double sleeves to prevent end pullout on
PE, HDPE and GRP pipes.
RANGER END CAPS
NOM. BORE
(mm)
50/2
65/2.5
803
100/4
125/5
150/6
175/7
200/8
225/9
250/10
250/10
300/12
PIPE O.D.
RANGE
(mm)
59-72
72-85
88-103
109-128
138-153
159-182
192-210
218-235
230-247
250-267
272-289
322-332
APPROX
MASS (kg)
3.1
3.3
4.5
4.9
5.2
7.4
9.6
10.6
17.4
18.8
17.1
24.2
PIPE MATERIAL SUITABILITY
STEEL (imperial+metric), UPVC, DI, CI, AC (imperial), ABS/DWV
STEEL (imperial+metric), UPVC, DI, CI, AC (imperial), ABS/DWV
STEEL (imperial+metric), UPVC, DI, CI, AC (imperial), ABS/DWV
STEEL (imperial+metric), UPVC, DI, CI, AC (cod), AC (imperial)
STEEL (imperial+metric), UPVC, DI, CI, AC (cod), AC (imperial)
STEEL (imperial+metric), UPVC, DI, CI, AC (cod), AC (cid), AC (imperial)
STEEL (imperial+metric), UPVC, CI, AC (imperial)
STEEL (imperial+metric), UPVC, DI, CI, AC (cod), AC (cid), AC (imperial), GRP
STEEL (imperial+metric), DI, AC (cod), AC (cid), AC (imperial)
STEEL (imperial+metric), UPVC, AC (cid)
STEEL (imperial+metric), UPVC, DI, CI, AC (cod), AC (cid), AC (imperial), GRP
STEEL (imperial+metric), UPVC, DI, AC (cid 24), GRP
MAX WORKING PRESSURE: 16 BAR • RECOMMENDED BOLT TORQUE: 60-80 mm
3

GRIPPER COUPLINGS
KLAMFLEX Gripper Couplings are designed to
resist end pullout on PE and PVC pipes, it is the
fastening action of the Gripper Rings that secures
the Coupling onto the pipe resisting end pullout.
KLAMFLEX Gripper Couplings are manufactured
from Ductile Iron, Gasket material is
EPDM, Gripper Ring material is Brass, and coating
is Fusion Bonded Epoxy.
Sizes are available for the following pipe
outside diameters:
NOMINAL
BORE
(mm)
PIPE OD RANGE
(mm)
50 63
7
APPROX
MASS (kg)
80 90
11
100 110
13
150 160
25
4

KLAMFLEX DEDICATED
COUPLINGS
KLAMFLEX Dedicated Couplings join pipes of
the same outside diameter. Couplings up to 324mm
OD are delivered pre-assembled. Larger sizes are
delivered ready for site assembly on the pipe.
KLAMFLEX Couplings can be manufactured to
suit both metric and imperial dimensions for Steel,
uPVC, Ductile Iron, G.R.P., Fibre Cement,
Stainless Steel, Aluminium Alloys and virtually all
other rigid pipe materials.
Klamflex Couplings can be manufactured with
double sleeves to prevent end pull out on HDPE
and GRP pipes.
The sizes shown in the schedules of dimensions are
for guide purposes. KLAMFLEX’S manufacturing
methods enable us to supply any size, including
non-standard sizes.
KLAMFLEX Couplings are pressure rated to the
appropriate pipe standards. Working pressure is
generally two-thirds of maximum test pressure
shown in the schedules of dimensions. These
pressures apply to a buried line with adequate
thrust blocks or to pipelines above ground
anchored at ends and at all changes of direction also
secured against side thrusts at each joint.
KLAMFLEX Couplings, though capable of
accommodating reasonable expansion and contraction,
do not mechanically prevent separation of
pipe ends subject to end thrust, and this must be
prevented by other means. To prevent separation of
pipe ends, harness assemblies consisting of lugs for
welding to adjacent pipes, and connecting tie rods
can be supplied. Pipes must be anchored against
end load, particularly when the pipeline is laid
above ground. A buried pipeline normally needs
anchoring only at abrupt changes in direction and at
junctions or stop ends.
Gaskets are of a EPDM rubber and are suitable for
water and sewerage services, chemicals and dilute
acids in the temperature range –50°C to +90°C.
Other sealing materials can be used, increasing
temperature range to greater than 90°C. These
materials are available on request.
Klamflex Gaskets and Epoxy coatings are
certified non toxic for potable water in accordance
with BS 6920.
5

One method of preventing pipe separation is the use of a
harness assembly, consisting of lugs for welding to steel
pipes and restraining tie rods. Cast iron pipes can sometimes
be harnessed through the use of additional flanges cast onto
the pipe ends.
In most cases we can also supply KLAMFLEX Flange
Adaptors complete with harness assembly. Four or more
flange bolts are replaced with long tie bolts.
N.B.
KLAMFLEX HARNESSED COUPLINGS
KLAMFLEX Pipe Couplings supply the lugs, nuts,
bolts and the couplings/adaptor between coupling
and plinth to permit full assembly of all bolts.
KLAMFLEX CENTRE REGISTER
The centre sleeve can be supplied with or without internal
centre register studs. The registers provide a locating stop to
centre the coupling which facilitates the laying of long pipe
runs. Centre registers also prevent the possibility of the
coupling creeping at positions where there are continual
axial movements. Couplings without centre register are
necessary for fitting closing lengths on a pipeline, or for
withdrawing any particular length for cleaning or inspection.
Locating plugs may be fitted to couplings to act as
removable centre registers, thus providing the advantage of
both types.
KLAMFLEX Centre registers are used in couplings above
ground where there may be a tendency for the coupling to
creep e.g. on an incline.
KLAMFLEX Centre registers are of two types: A (from
350mm) removable, used where the coupling can be moved
along the pipe to allow the pipe to be inspected, and B (all
sizes) fixed, used where there is no need to remove couplings.
KLAMFLEX ANCHORED COUPLINGS
With brackets welded to the centre sleeve, couplings can be
bolted directly to the supporting structure. Brackets are
designed to withstand the thrust produced by maximum
angularity and will support a 10m long pipe full of water (up
to DN 1 500mm)
We recommend the use of locating centre registers with
anchored couplings to help resist pipe movement. On steep
slopes, special consideration should be given to anchorage.
N.B.
1.
2.
3.
Harness rods are not normally used with
anchored couplings.
Anchor brackets are not designed to withstand
the full longitudinal or lateral forces produced
by internal pressure.
Ensure that sufficient clearance is allowed
between coupling and plinth to permit full
assembly of all bolts.
Where locating plugs are used, the setting gap should be
increased by 9,5mm for sizes up to 324mm and 12.5mm for
sizes above 324mm OD to avoid contact with the plugs.
6

KLAMFLEX DEDICATED COUPLINGS
DUCTILE IRON PIPE ISO 2531:1991 BS 4772:1988
FOR 10 & 16 BAR WORKING PRESSURE
NOM
BORE
PIPE
OD
TOLERANCE
ON PIPE OD
FOR PREPARED
END
MINIMUM
PIPE END
PREPARED
LENGTH
L
OD OF
ENDRING
(mm) (mm) (mm) (mm) (mm) (mm) (mm)
80
100
125
150
200
250
300
350
400
450
500
600
700
800
900
1000
1100
1200
1400
1600
1800
2000
98
118
141
170
222
274
326
378
429
480
532
635
738
842
945
1048
1152
1255
1468
1668
1875
2082
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
-3.0
-3.0
-3.0
-3.0
-3.5
-3.5
-3.5
-3.5
-4.0
-4.0
-4.0
-4.5
-4.5
-4.5
-5.0
-5.0
-6.0
-6.0
-6.0
-6.0
-6.0
-6.0
100
100
100
100
100
100
100
150
150
150
150
150
150
150
150
150
150
150
150
150
150/ 300
150/ 300
158
200
220
260
308
364
414
480
531
582
634
737
840
944
1047
1150
1268
1371
1578
1784
1989
2196
178
178
178
178
178
178
178
262
262
262
262
262
262
262
262
262
262
262
262
262
262/ 450
262/ 450
102
102
102
102
102
102
102
178
178
178
178
178
178
178
178
178
178
178
178
178
178/356
178/ 356
A
COUPLING
LENGTH
B
SLEEVE
WIDTH
D
STANDARD
TEST PRESSURE
AT:
10 bar
working
pressure
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
16 bar
working
pressure
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
APPROX.
MASS
(kg)
3.6
4.4
6.1
6
7.9
10.6
11.7
29.4
33.7
37
41.3
47.9
56.4
64
70.6
78.3
115
124.9
144.2
164.3
TBA
TBA
FOR COUPLINGS OF 25 AND 40 BAR WORKING PRESSURE PLEASE CONTACT KLAMFLEX
THE ABOVE TABLE INCLUDES SAMPLES OF THE SIZES AVAILABLE, PLEASE CONTACT KLAMFLEX FOR ANY OTHER SIZES UP TO
3500mm.
7

KLAMFLEX DEDICATED COUPLINGS
STEEL PIPES: ISO 2531:1991 BS 4772:1988
FOR 10 & 16 BAR WORKING PRESSURE
NOM
BORE
PIPE
OD
TOLERANCE
ON PIPE OD
FOR PREPARED
END
MINIMUM
PIPE END
PREPARED
LENGTH
OD OF
ENDRING
COUPLING
LENGTH
SLEEVE
WIDTH
STANDARD
TEST PRESSURE
AT:
APPROX.
MASS
L A B D
10 bar 16 bar
working working
(mm) (mm) (mm) (mm) (mm) (mm) (mm) pressure pressure (kg)
50
65
80
100
125
150
150
200
225
250
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
1050
1100
1200
1200
1400
1400
1500
1600
1600
1800
1800
2000
2100
2200
2400
2700
60.3
76.1
88.9
114.3
139.7
165.1
168.3
219.1
244.5
267
273
323.9
355.6
406.4
457
508
559
609.6
660
711.2
762
812.8
864
914.4
965
1016
1067
1118
1219
1235
1420
1422
1520
1620
1626
1820
1829
2020
2120
2230
2440
2740
+0.8
+0.8
+0.8
+0.8
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+3
+3
+3
+3
+3
+3
+3
+3
+3
-0.8
-0.8
-0.8
-0.8
-0.8
-0.8
-0.8
-0.8
-0.8
-0.8
-0.8
-0.8
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-3
-3
-3
-3
-3
-3
-3
-3
-3
-3
-3
-3
100
100
100
100
100
100
100
100
100
100
100
100
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150/ 300
150/ 300
150/ 300
150/ 300
150/ 300
134
150
158
174
220
246
246
308
338
360
364
414
458
509
559
610
661
712
762
814
864
915
966
1017
1067
1118
1169
1220
1335
1351
1536
1538
1636
1736
1742
1936
1945
2134
2234
2344
2554
2854
178
178
178
178
178
178
178
178
178
178
178
178
262
262
262
262
262
262
262
262
262
262
262
262
262
262
262
262
262
262
262
262
262
262
262
262
262
262/ 450
262/ 450
262/ 450
262/ 450
262/ 450
83
102
102
102
102
102
102
102
102
102
102
102
178
178
178
178
178
178
178
178
178
178
178
178
178
178
178
178
178
178
178
178
178
178
178
178
178
178/ 356
178/ 356
178/ 356
178/ 356
178/ 356
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
2.2
2.7
3.3
4
6.1
5.4
5.4
7.9
10.6
11.4
10.6
11.6
28
31.3
35.5
39.6
42.9
46.3
49.4
53.7
58
61.3
65.4
68.6
72.9
76
79.4
83.6
121.8
123.2
140.4
140.7
150.2
160
160.6
178.7
179.4
TBA
TBA
TBA
TBA
TBA
FOR COUPLINGS OF 25 AND 40 BAR WORKING PRESSURE PLEASE CONTACT KLAMFLEX
THE ABOVE TABLE INCLUDES SAMPLES OF THE SIZES AVAILABLE, PLEASE CONTACT KLAMFLEX FOR ANY OTHER SIZES UP TO
3500mm.
8

NOM
BORE
PIPE
OD
TOLERANCE
ON PIPE OD
FOR PREPARED
END
KLAMFLEX DEDICATED COUPLINGS
uPVC PIPES: SABS 966:1976 ISO 161:1978
FOR 10 & 16 BAR WORKING PRESSURE
MINIMUM
PIPE END
PREPARED
LENGTH
OD OF
ENDRING
COUPLING
LENGTH
SLEEVE
WIDTH
STANDARD
TEST PRESSURE
AT:
APPROX.
MASS
L A B D
10 bar 16 bar
working working
(mm) (mm) (mm) (mm) (mm) (mm) (mm) pressure pressure (kg)
100 110 +1.0 -1.0 100 163 178 102 15 24 4.2
140 140 +1.0 -1.0 100 220 178 102 15 24 6.1
160 160 +1.0 -1.0 100 242 178 102 15 24 5.9
175 177.8 +1.0 -1.0 100 267 178 102 15 24 7.5
180 180 +1.0 -1.0 100 267 178 102 15 24 9.6
200 200 +1.0 -1.0 100 289 178 102 15 24 10
225 225 +1.0 -1.0 100 318 178 102 15 24 10.4
250 250 +1.0 -1.0 100 343 178 102 15 24 10.9
280 280 +1.0 -1.0 100 373 178 102 15 24 11.1
315 315 +1.0 -1.0 100 408 178 102 15 24 11.9
400 400 +1.0 -1.0 150 502 262 178 15 24 31
500 500 +1.0 -1.0 150 602 262 178 15 24 39.2
FOR COUPLINGS OF 25 AND 40 BAR WORKING PRESSURE PLEASE CONTACT KLAMFLEX
THE ABOVE TABLE INCLUDES SAMPLES OF THE SIZES AVAILABLE, PLEASE CONTACT KLAMFLEX FOR ANY OTHER SIZES UP TO
2000MM.
NOM
BORE
KLAMFLEX DEDICATED COUPLINGS
FIBRE CEMENT PIPE FOR COD AND CID PIPE: SABS 1223:1985 ISO 160:1980
PIPE
OD
TOLERANCE
ON PIPE OD
FOR PREPARED
END
FOR 10 & 16 BAR WORKING PRESSURE
MINIMUM
PIPE END
PREPARED
LENGTH
OD OF
ENDRING
COUPLING
LENGTH
SLEEVE
WIDTH
STANDARD
TEST PRESSURE
AT:
10 bar
16 bar
APPROX.
MASS
L A B D working working
(mm) (mm) (mm) (mm) (mm) (mm) (mm) pressure pressure (kg)
50
100
150
150
250
300
300
300
600
600
600
600
1100
96
122
168
177
286
328
340
345
667
699
727
755
1188
+0.6
+0.6
+0.6
+0.6
+0.6
+0.6
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.2
-0.0
-0.0
-0.0
-0.0
-0.0
-0.0
-0.0
-0.0
-0.0
-0.0
-0.0
-0.0
-0.0
100
100
100
100
100
100
150
150
150
150
150
150
150
158
200
246
267
379
421
442
442
769
801
829
857
1304
178
178
178
178
178
178
262
262
262
262
262
262
262
102
102
102
102
102
102
178
178
178
178
178
178
178
15
15
15
15
15
15
15
15
15
15
15
15
15
24
24
24
24
24
24
24
24
24
24
24
24
24
3.6
4.4
5.4
6.1
12
13.9
27.1
27.5
50
52.9
55.7
57.5
118.1
FOR COUPLINGS OF 25 AND 40 BAR WORKING PRESSURE PLEASE CONTACT KLAMFLEX
THE ABOVE TABLE INCLUDES SAMPLES OF THE SIZES AVAILABLE, PLEASE CONTACT KLAMFLEX FOR ANY OTHER SIZES UP TO
2000MM.
9

KLAMFLEX STEPPED
COUPLINGS
Where pipe ends of different outside diameters
have to be connected, stepped couplings can be
provided. These normally cover the difference
between the outside diameters of pipes of different
materials of construction with a common nominal
bore, or pipes of the same materials having different
nominal bores.
It is advisable to mark the pipe a known distance
from the end when fitting a step coupling to enable
inspection of movement. This will allow the
inspector to ensure that no telescoping along the
smaller diameter pipe has occurred.
When this fitting is used as a coupling between two
pipes with diameter differences exceeding 25mm
it is essential to ensure that the stepped coupling
cannot be forced along the smaller diameter pipe.
Scheduled sizes will not normally require such
precautions, but others may.
Regular inspection of a pipe previously marked, is
normally all that is required. Alternatively, where
this cannot be arranged, a mechanical means
should be employed.
Pressure rating for stepped couplings are
equivalent to the rating specified in the straight
coupling schedules, for the larger of the two OD's.
In the case of ductile iron, AC and uPVC pipes, the
pressure rating will match the pipe rating.
KLAMFLEX Stepped Couplings can be
manufactured with full sleeves to prevent end
pullout on PE, HDPE and GRP pipes.
10

Where pipe OD sizes are negligible
KLAMFLEX STEPPED COUPLIINGS
NOM
BORE
PIPE 1
NOM
BORE
PIPE 2
PIPE
OD1
PIPE
OD2
DESCRIPTION
L
MIN
A1 A2 B
D
MAX TEST
PRESSURE
(mm)
50
140
200
315
300
600
700
1000
(mm)
65
160
200
300
300
600
700
1000
(mm)
60.3
140
200
315
353
651
760
1062
(mm)
76.1
160
219
324
365
672
784
1084
(mm)
STEEL/STEEL
uPVC/uPVC
uPVC/STEEL
uPVC/STEEL
FC30/FC24
FC18/FC12
FC18/FC12
FC12/FC06
(mm)
100
100
100
100
120
140
140
160
(mm)
133
224
292
407
458
756
875
1177
(mm)
148
246
311
419
470
777
889
1199
(mm)
172
172
172
172
260
260
260
260
(mm)
102 x 6.4
102 x 7.2
102 x 8.7
102 x 8.7
178 x 8.7
178 x 8.7
178 x 11.1
178 x 11.1
(bar)
24
24
24
24
24
24
24
24
Where the pipe OD differs to a greater extent a profile plate is used
KLAMFLEX STEPPED COUPLIINGS
NOM
BORE
PIPE 1
NOM
BORE
PIPE 2
PIPE
OD1
PIPE
OD2
DESCRIPTION
L
MIN
A1
A2
B
D
MAX TEST
PRESSURE
(mm)
65
160
150
250
355
600
700
1100
(mm)
80
150
200
250
350
600
750
1100
(mm)
76.1
160
177
273
355
610
711
1118
(mm)
96
174
232
318
378
672
762
1188
(mm)
STEEL/FC
uPVC/FC18
FC/FC
STEEL/FC36
uPVC/DI
STEEL/FC18
STEEL/DI
FC/STEEL
(mm)
100
100
100
100
120
150
150
160
(mm)
148
246
270
367
460
714
815
1233
(mm)
170
266
324
410
483
776
877
1303
(mm)
188
190
190
190
270
270
270
276
(mm)
110
112
112
112
188
188
188
194
(bar)
24
24
24
24
24
24
24
24
FOR COUPLINGS OF 25 AND 40 BAR WORKING PRESSURE PLEASE CONTACT KLAMFLEX
THE ABOVE TABLE INCLUDES SAMPLES OF THE SIZES AVAILABLE, PLEASE CONTACT KLAMFLEX FOR ANY OTHER SIZES
UP TO 2000MM.
11

RANGER FLANGE ADAPTORS
KLAMFLEX Ranger Flange Adaptors, are designed to
join pipes of various outside diameters with the same or
different nominal bore. The ability of KLAMFLEX
Ranger Flange Adaptors to join dissimilar pipe materials
is a bonus feature in both repair or permanent situations.
Corrosion protection for KLAMFLEX Ranger Flange
Adaptor Products is available in Fusion Bonded Epoxy,
Red Oxide Primer and Galvanised finish as standard.
Optional coatings to customer specifications are available
on request.
KLAMFLEX Ranger Flange Adaptors have application
in the reticulation of potable water, waste water and
sewage as well as in the marine, mining, oil, gas and
general engineering sectors.
Moulded, circumferentially ribbed or specially profiled
gaskets, generally in EPDM or NBR materials, provide for
smooth installation by minimising contact friction.
KLAMFLEX Ranger Gaskets are designed to provide a
leak tight seal across the O.D. range per nominal size and
still allow for thermal expansion and contraction of the
pipe up to 5mm per gasket, facilitated through gasket
deformation.
To facilitate installation and avoid possible creep under
rising load, it is strongly recommended that the
KLAMFLEX Ranger Rubber Sealing Gaskets are well
lubricated with a suitable non toxic soap solution before
the introduction of the pipe.
KLAMFLEX RANGER FLANGE ADAPTOR
NOM. BORE
(mm/inch)
50/2
65/2.5
80/3
100/4
125/5
150/6
175/7
200/8
250/10
300/12
300/12
350/14
400/16
450/18
500/20”
600/24
PIPE O.D. APPROX
RANGE (mm) MASS (kg)
59-72
72-85
88-103
109-128
138-153
159-182
192-210
218-235
250-267
272-289
315-332
322-340
374-391
417-437
480-500
526-546
630-650
3.4
3.8
5.4
5.4
6.8
8
9
9.8
16.2
15.2
22.4
19
25.4
28.6
32.8
41.2
51
FLANGE DRILLING COMPATIBILITY
50mm: BS 10 Table D,E, & F: ANSI 150: BS4504: 6/3, 10/3, 16/3.
SABS 1123: 600/3, 1000/3, 1600/3
65mm: BS 10 Table F: BS4504:10/3, 16/3: SABS 1123:1000/3, 1600/3
80mm: BS 10 Table D,E, & F: ANSI 150: BS4504: 6/3, 10/3, 16/3.
SABS 1123: 600/3, 1000/3, 1600/3
100mm: BS 10 Table D,E, & F: ANSI 150: BS4504:10/3, 16/3.
SABS 1123: 1000/3, 1600/3
125mm: BS 10 Table D,E, & F: ANSI 150: BS4504: 6/3, 10/3, 16/3.
SABS 1123: 600/3, 1000/3, 1600/3.
150mm: BS 10 Table D & E: ANSI 150: BS4504: 10/3, 16/3.
SABS 1123: 1000/3, 1600/3.
200mm: BS 10 Table D & E: ANSI 150: BS4504: 10/3, 16/3.
SABS 1123: 1000/3, 1600/3.
200mm: BS 10 Table D & E: ANSI 150: BS4504: 10/3, 16/3.
SABS 1123: 1000/3, 1600/3.
250mm: BS 10 Table E: BS4504: 10/3, 16/3. SABS 1123: 1000/3, 1600/3.
PN 10, PN 16, TABLE D & E
PN 10, PN 16, TABLE E, ANSI 150 lb
PN 10, PN 16
PN 10, PN 16
PN 10, PN 16
PN 10, PN 16, ANSI 150 lb
PN 10, PN 16, ANSI 150 lb
MAX WORKING PRESSURE: 16 BAR • SETTING GAP: 19mm • TOLERANCE ON ANGULAR DEFLECTION:
3 DEGREES • EXPANSION AND CONTRACTION RANGE: 0-5 mm • RECOMMENDED BOLT TORQUE: 60-80 mm
12

KLAMFLEX DEDICATED
FLANGE ADAPTORS
KLAMFLEX Dedicated Flange Adaptors are
manufactured to join plain-ended pipe to flanged
valves, fittings and pipes, obviating difficulties
usually experienced with rigid connections.
KLAMFLEX Dedicated Flange Adaptors are
supplied to suit the pressure rating of the flange.
The overall pressure rating of the assembled
adaptor will be equal to that of the lower rated
component, either pipe of flange.
Klamflex Restraint Flange Adaptors can also be
supplied where end pull out is of concern.
When ordering KLAMFLEX Dedicated Flange
Adaptors the following information is required
to avoid the possibility of error in flange selections:
•Pipe outside diameter.
•Nominal bore of the flanged fitting.
•Table drilling with standard applicable.
The thickness of KLAMFLEX Flanges will not
necessarily be the same as the mating flange due
to the fact that the flange of the Flange Adaptor
will not be subject to the full end or side thrust,
most of which is absorbed by the flexibility in
the rubber gaskets.
Refer to column “T” on pages 13-14.
KLAMFLEX Flange Adaptors can be manufactured
with full sleeves to prevent end pullout on
PE, HDPE and GRP pipes.
13

T
KLAMFLEX FLANGE ADAPTORS : STEEL PIPES
FLANGES DRILLED PN10 OR PN16, 1000/3 OR 1600/3 (BS10: A,D,E)
AND ANSI 125/ 150
NOM
BORE
PIPE
OD
TOLERANCE
ON PIPE OD
FOR DISTANCE L
MINIMUM
LENGTH
PREPARED
PIPE END
OD OF
ENDRING
FLANGE
ADAPTOR
LENGTH
TABLE
FLANGE
THICKNESS
APPROX.
MASS
L
A
B
T
(mm) (mm) (mm) (mm) (mm) (mm) (mm) (kg)
50
65
80
100
125
150
150
200
250
250
300
350
400
450
500
600
700
800
900
1000
1200
1400
1600
1800
2000
2000
60.3
76.1
88.9
114.3
139.7
165.1
168.3
219.1
267
273
323.9
355.6
406.4
457
508
610
711
813
914
1016
1219
1420
1620
1820
2020
2032
+0.8
+0.8
+0.8
+0.8
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+1.6
+3
+3
+3
+3
-0.8
-0.8
-0.8
-0.8
-0.8
-0.8
-0.8
-0.8
-0.8
-0.8
-0.8
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-3
-3
-3
-3
-3
100
100
100
100
100
100
100
100
100
100
100
150
150
150
150
150
150
150
150
150
150
150
150
150
150/ 300
150/ 300
134
150
165
191
220
246
246
308
360
364
414
458
509
559
610
712
813
915
1016
1118
1335
1536
1736
1936
2134
2146
152
102
102
102
104
106
106
106
109
109
109
153
154
154
155
155
155
155
155
157
165
175
190
190
190/ 290
190/ 290
12
12
12
12
14
16
16
16
19
19
19
23
24
24
25
25
25
25
25
27
35
45
60
60
60
60
3.1
3.4
3.9
4.5
6.5
7.5
7.5
10
15.5
14.6
17.3
33.5
39.6
45.5
55.6
70.6
71.6
84.4
90.1
118.6
198
275.9
439.1
494.1
TBA
TBA
FOR COUPLINGS OF 25 AND 40 BAR WORKING PRESSURE PLEASE CONTACT KLAMFLEX
The above table includes samples of the sizes available, please contact KLAMFLEX for any other sizes up to 3500mm.
14

KLAMFLEX FLANGE ADAPTORS: DUCTILE IRON PIPES
FLANGES DRILLED PN10 OR PN16, 1000/3 OR 1600/3 (BS10: A,D,E)
AND ANSI 125/ 150
NOM
BORE
PIPE
OD
TOLERANCE
ON PIPE OD
FOR DISTANCE L
MINIMUM
LENGTH
PREPARED
PIPE END
OD OF
ENDRING
FLANGE
ADAPTOR
LENGTH
TABLE
FLANGE
THICKNESS
APPROX.
MASS
L
(mm) (mm) (mm) (mm) (mm) (mm) (mm) (kg)
100
150
200
250
300
350
400
450
500
600
700
800
900
1000
1200
1400
1600
1800
2000
118
170
222
274
326
378
429
480
532
635
738
842
945
1048
1255
1462
1668
1875
2082
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
-3.0
-3.0
-3.5
-3.5
-3.5
-3.5
-4.0
-4.0
-4.0
-4.5
-4.5
-4.5
-5.0
-5.0
-6.0
-6.0
-6.0
-6.0
-6.0
100
100
100
100
100
150
150
150
150
150
150
150
150
150
150
150
150
150
150/300
200
260
308
364
414
480
531
582
634
737
840
944
1047
1150
1371
1578
1784
1989
2196
102
106
106
109
109
153
154
154
155
155
155
155
155
157
165
175
190
190
190/290
12
16
16
19
19
23
24
24
25
25
25
25
25
27
35
45
60
60
60
4.5
7.8
9.8
14.7
17.1
32
37.5
42.9
52.5
66.5
66.5
77.9
82.1
108.7
180.3
244.1
382.7
TBA
TBA
A
B
T
FOR COUPLINGS OF 25 AND 40 BAR WORKING PRESSURE PLEASE CONTACT KLAMFLEX
The above table includes samples of the sizes available, please contact KLAMFLEX for any other sizes up to 3500mm.
KLAMFLEX STEPPED
FLANGE ADAPTORS
KLAMFLEX RESTRAINT
FLANGE ADAPTORS
KLAMFLEX Stepped Flange Adaptors can be manufactured
where pipe nominal bore is larger (as indicated
above) or smaller than flange nominal bore.
KLAMFLEX Restraint Flange adaptors can be
manufactured where end pull out is of concern.
15

KLAMFLEX GRIPPER
FLANGE ADAPTORS
Klamflex Gripper Flange Adaptors are designed
to resist end pullout on PE and HDPE pipes, it is
the fastening action of the Gripper Ring that
secures the Flange Adaptor onto the pipe
resisting end pullout.
Klamflex Gripper Flange Adaptors are manufactured
from Ductile Iron, Gasket material is
EPDM, Gripper Ring material is Brass, and
coating is Fusion Bonded Epoxy.
Sizes are available for the following pipe
outside diameters:
NOMINAL BORE
(mm)
PIPE OD RANGE
(mm)
APPROX
MASS (kg)
FLANGE
DRILLING
50mm 63mm 3.6 PN10/16
80mm 90mm 5.4 PN10/16
100mm 110mm 6.4 PN10/16
150mm 160mm 12.8 PN10/16
150mm 180mm 12.8 PN10/16
200mm 200mm 16 PN10/16
200mm 225mm 18 PN10/16
250mm 250mm 25 PN16
250mm 280mm 28.2 PN16
300mm 315mm 38 PN16
16

KLAMFLEX
DISMANTLING JOINTS
Manufactured to AWWA C219 under quality
management systems accredited to ISO
9001:2000, the KLAMFLEX Dismantling
Joint assembly is a double flanged composite
fitting featuring a telescopic action between a
flanged spigot and a flange adaptor. The joint is
designed to provide longitudinal adjustment in
flanged pipe systems. Dismantling Joints
provide a simple method for the installation and
removal of flanged valves, pumps, flow meters,
flanged pipes and pipe fittings. Tie rods are
provided for final anchoring and location and
these also double as mating flange jointing
bolts, reducing the number of these required.
The Dismantling Joint range from
KLAMFLEX extends from 50mm to 2000mm
and whilst the chart indicates flange ratings of
PN10/16, all common drillings are available in
pressures up to 40 BAR. The range indicated
overleaf is typical and KLAMFLEX can
manufacture to specific customer
specifications and dimensions, on request.
Thickness of Klamflex flanges will not
necessarily be the same as the mating flange.
Flanges and flange adaptors will not be subject
to full end or side thrust, most of which is
absorbed by the flexibility in the rubber gaskets.
Pipe end should be smooth, with no seams,
score marks, dents or ovality.
Installation is extremely simple and is generally
done with the flange adaptor end connected to
the valve or other appurtenance. In cases where
a full faced flange is required, for example on
wafer butterfly valves, the joint is simply turned
round to use the spigot flange instead.
17

A
SPIGOT PIECE
DRILLING SPECIFICATION
VALVE OR FLANGED END
B
END RINGS TO BE SCALLOPED TO ACCOMODATE TIE RODS
B
VALVE OR FLANGED END
C
D
H
NOMINAL
BORE
OF
JOINT
FLANGE
PN
RATING
SPIGOT
PIPE
O.D.
+/-
SPIGOT
PIPE
WALL
THICK
C
SPIGOT
LENGTH
INCLUDING
FLANGE
B
ADAPTOR &
SPIGOT
FLANGE
THICKNESS
H
MIN
LENGTH
OF
JOINT
C + D
RECOM.
JOINT
LENGTH
H
MAX
LENGTH
OF
JOINT
(mm) (bar) (mm) (mm) (mm) (mm) (mm)
(mm)
(mm) (kg)
TIE
ROD
QTY
L
X
A
TIE ROD
LENGTH
APPROX
MASS
50
65
80
100
125
150
200
200
250
250
300
300
350
350
400
400
450
450
500
500
600
600
700
700
800
800
900
900
1000
1000
1200
1200
1400
1400
1600
1600
1800
1800
2000
2000
PN 10/16
PN 10/16
PN 10/16
PN 10/16
PN 10/16
PN 10/16
PN 10
PN 16
PN 10
PN 16
PN 10
PN 16
PN 10
PN 16
PN 10
PN 16
PN 10
PN 16
PN 10
PN 16
PN 10
PN 16
PN 10
PN 16
PN 10
PN 16
PN 10
PN 16
PN 10
PN 16
PN 10
PN 16
PN 10
PN 16
PN 10
PN 16
PN 10
PN 16
PN 10
PN 16
60
76
89
114
140
165
219
219
273
273
324
324
356
356
406
406
457
457
508
508
610
610
711
711
813
813
914
914
1016
1016
1219
1219
1420
1420
1620
1620
1820
1820
2020
2020
3.2
3.2
3.2
3.9
4.2
4.2
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
8.0
8.0
8.0
10.0
10.0
10.0
10.0
10.0
12.0
12.0
165
165
165
165
165
165
165
165
175
175
175
175
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
260
260
280
280
310
310
350
350
350
350
350
350
12
12
12
12
14
16
16
16
19
19
19
19
23
23
24
24
24
24
25
25
25
25
25
25
25
25
25
25
27
27
35
35
45
45
60
60
60
60
60
60
165
165
165
165
165
165
165
165
175
175
175
175
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
260
260
280
280
310
310
350
350
350
350
350
350
185
185
185
185
185
185
185
185
195
195
195
195
275
275
275
275
275
275
275
275
275
275
275
275
275
275
275
275
290
290
310
310
340
340
380
380
380
380
380
380
205
205
205
205
205
205
205
205
215
215
215
215
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
320
320
340
340
370
370
410
410
410
410
410
410
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
6
7
7
7
7
8
8
9
9
8
8
11
11
12
12
M16
M16
M16
M16
M16
M20
M20
M20
M20
M24
M20
M24
M20
M24
M24
M27
M24
M27
M24
M30
M27
M33
M27
M33
M30
M36
M30
M36
M33
M39
M36
M45
M39
M45
M45
M52
M45
M52
M45
M56
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
300
300
300
300
300
320
320
320
330
350
330
350
420
450
450
460
450
470
450
490
480
520
480
520
500
550
510
570
560
610
610
680
670
730
750
820
770
850
750
890
9
10
12
13
16
23
31
33
34
38
43
44
49
71
77
88
95
99
111
131
135
175
168
184
200
220
225
245
298
331
496
559
610
665
1250
1320
1300
1500
1490
1750
FOR COUPLINGS OF 25 & 40 BAR WORKING PRESSURE PLEASE CONTACT KLAMFLEX
THE ABOVE TABLE INCLUDES SAMPLES OF THE SIZES AVAILABLE, PLEASE CONTACT KLAMFLEX FOR ANY OTHER SIZES.
18

SHOULDERED COUPLING
KLAMFLEX general purpose Shouldered
Couplings are manufactured in accordance with
SANS 815 and can be used on shouldered end
pipes for various applications.
Materials of construction
Body – Ductile Iron (ASTM A536 Grade 65-45-12)
Bolts & Nuts – Carbon Steel (GR 8.8 ASTM A183)
Gaskets – EPDM (ASTM D2000)
NOMINAL
BORE
(mm)
PIPE OD
(mm)
WORKING
PRESSURE
(Mpa)
BOLT
SIZE
(mm)
OD
(mm)
ID
(mm)
L
(mm)
H
(mm)
APPROX
MASS
(Kg)
50 60.3 4.0 M10x55 97 61 132 48 0.9
80 88.9 4.0 M12x85 127 90.6 170 48 1.30
100 114.3 3.5 M12x85 156 115.6 206 52 1.80
150 165.1 3.5 M16x100 212 167 273 52 2.50
200 219.1 3.0 M20x110 280 221 346 60 5.10
19

KLAMFLEX
JUNIOR COUPLINGS
A small bore product range specifically
designed for use on plain ended steel service
lines, comprising of:
SIZE RANGE
• Junior Straight Couplings
• Junior Straight Couplings with
Integral gripper rings
• Male/Female Junior Couplings
• Male/Female Junior Couplings
with integral gripper rings
• Junior Tee Pieces
• Junior Tees with integral gripper rings
• Junior Repair Clamps
• Junior Repair Clamp with Tee Outlet
15-50 mm
15-50 mm
15-50mm
15-50 mm
15-25 mm
15-25 mm
15-50mm
15-25mm
All products feature cast construction &
galvanised finish for long term corrosion
protection. An extremely simple jointing
method which eliminates the need for on site
pipe threading.
20

KLAMFLEX SOCKET
STEEL FITTINGS
Klamflex Socket Steel Fittings are available
in all types of steel fittings such as Bends,
Tees, Reducers, and Crosses, and are manufactured
by welding half a Klamflex Coupling
to the ends of a steel fitting.
Bolts and nuts and not studs are used in the
couplings, this ensures easy replacement of
damaged fasteners. Klamflex also makes use
of a profile plate and not lugs that are welded
to the steel fitting to accommodate the tightening
process.
Installation is effected by simply inserting the
plain ended pipe into the Klamflex Pipe
Coupling and tightening the bolts.
The use of these fittings will result in significant
cost savings as only one piece of equipment
is being purchased instead of separate
fittings and couplings.
21

PIPE OUTSIDE DIAMETERS OF COMMON PIPE MATERIALS
ALL DIMENSIONS ARE IN MILLIMETRES (mm)
PIPE NOMINAL BORE
mm
inches
STEEL BS 1387
STEEL SABS 62 MEDIUM
max
15
0.5
21.3
21.7
20
0.75
26.9
27.2
25
1
33.7
34.2
32
1.25
42.4
42.9
40
1.5
48.3
48.8
50
2
60.3
60.8
65
2.5
76.1
76.6
80
3
88.9
89.5
100
4
114.3
114.9
125
5
139.7
140.6
150
6
165.1
166.1
175
7
200
8
225
9
250
10
300
12
350
14
400
16
450
18
500
20
550
22
600
24
650
26
700
28
750
30
800
32
850
34
900
36
1000
40
1050
42
1100
44
1200
48
1300
52
1400 1500
56
STEEL SABS 719
219.1 273.1 323.9 355.6 406.4 457 508 559 610 660 711 762 813 864 914 1016 1067 1118 1219 1321 1422
STEEL ISO 4200 SER 1
21.3 26.9 33.7 42.4 48.3 60.3 76.1 88.9 114.3 139.7 168.3 219.1 273.0 323.9 355.6 406.4 457 508 610 711 813 914 1016 1067 1118 1219 1422
STEEL API 5 L
21.4 26.7 33.4 42.4 48.3 60.3 73.0 88.9 114.3 141.3 168.3 219.1 273.1 323.9 355.6 406.4 457.2 508 559 609.6 660.4 711.2 762 812.8 863.6 914.4 1016 1066.8 1117.6 1219.2 1320.8 1422.4
STEEL BS 3600/3601
21.4 26.8 33.6 42.3 48.3 60.4 76.1 88.9 114.3 139.7 168.3 193.7 219.1 244.5 273.0 323.9 355.6 406.4 457.0 508 559 610 660 711 762 813 864 914 1016
1219 1422
DUCTILE IRON ISO 2531 : BS 4772
98.0
GRP (O.D. Can Vary by Manufacturer) max
118.0 144.0
116
170.0
168
222.0
220.5
274.0
272.1
326.0
327
378.0
379
429.0
413
480.0
464
532
515
635
617
738
719
842
821
945
924
1048
1025
1255
1229
1462
1433
ASBESTOS CEMENT C.O.D. (South Africa)
ASBESTOS CEMENT C.I.D. (South Africa)
ASBESTOS CEMENT C.I.D. (South Africa)
ASBESTOS CEMENT C.I.D. (South Africa)
ASBESTOS CEMENT C.I.D. (South Africa)
ASBESTOS CEMENT C.I.D. (South Africa)
ASBESTOS CEMENT C.I.D. (South Africa)
ASBESTOS CEMENT METRIC BS 486
ASBESTOS CEMENT METRIC BS 486
ASBESTOS CEMENT METRIC BS 486
ASBESTOS CEMENT METRIC BS 486
IMP CAST IRON ASBESTOS CEMENT
IMP CAST IRON ASBESTOS CEMENT
CL6
CL12
CL18
CL24
CL30
CL36
CL15
CL18
CL20
CL25
CL AB
CL CD
55.9
55.9
69
69
69.1
69.1
86
82.3
82.3
96
106
96
95.5
95.5
122
126
122
121.9
121.9
150
149.9
149.9
177
168
174
180
188
196
177
178
177
177.3
177.3
204.7
204.7
232
222
229
239
250
262
232
234
232
240
232.2
232.2
259
259
268
259.1
259.1
286
274
284
295
304
318
286
288
286
295
286
286
345
328
340
353
365
378
334
344
345
356
333.8
345.4
426
378
382
396
412
426
440
392
402
405
419
378
399.3
430
436
450
468
484
503
448
456
463
478
439
453.1
507
483
488
506
524
545
566
498
508
515
532
492
506.9
587
535
543
560
583
606
629
568
560
586
605
545
560.3
598
613.7
667
638
651
672
699
727
755
654
668
672
691
650
667
703
720.3
744
760
784
816
761
780
780
801
755
773.2
807
826
850
868
896
932
808
888
830
852 912
860
879.3
956+
976
1008
1048
927
1000
952
977
964
984.5
1062
1084
1120
1165
970
1110
996
1024
1068
1090.2
1214
1121 1172
1143
1320 1430 1540 1650
1277
1300.5
UPVC, MPVC, PE, HDP
THESE PIPES ARE QUOTED USING THE SAME DIMENSION FOR NOMINAL BORE AS PIPE OUTSIDE DIAMETER
16 20 25 32 40 50 63 75 90 110 125 140 160 180 200 225 250 280 315 355 400 450 500 560 630 710 800 900 1000 1200 1400 1600 1800 2000
TO ASSIST US IN MAKING THE CORRECT PRODUCT SELECTION FOR YOU PLEASE PROVIDE AS MUCH OF THE FOLLOWING INFORMATION AS POSSIBLE
(I) PIPE OUTSIDE DIAMETER OR PIPE MATERIAL AND CLASS
(II) WORKING PRESSURE
(III) MATCHING FLANGE DRILLING FOR FLANGE ADAPTORS AND DISMANTLING JOINTS
(IV) PRODUCT IN SYSTEM (WATER, SEWAGE, CHEMICALS, GAS, AIR, OIL ETC)
(V) FLUID / GAS TEMPERATURE IF AVAILABLE
1600
64
1626
1626
1625.6
1626
1668
1637
1800
72
1829
1829
1828.8
1829
1875
1841
2000
80
2032
2032
2032
2032
2080
2045
22

ARPAL
P.O. Box 4073
Luipaardsvlei 1743
South Africa
52 Fransen Street
Chamdor
Krugersdorp
1740
Tel: +27 11 762 5326
Fax: +27 11 762 5674
E-mail: sales@klamflex.com
Website: www.klamflex.com
PIPE COUPLINGS (PTY) LTD
KLAMFLEX PIPE COUPLINGS (PTY) LTD RESERVES THE RIGHT TO MODIFY THE SPECIFICATIONS AND INFORMATION CONTAINED WITHIN THIS MANUAL DUE TO
PRODUCT RESEARCH, DEVELOPMENT AND IMPROVEMENTS