ADCA-BM 32

Bimetallic Steam Traps and
Air Eliminators BM 20 (DN15 - DN20)
Description
BM 20 series bimetallic steam traps and air eliminators
are simple and robust traps, recommended for steam
tracting applications and where condensate sensible
heat can be recovered.
Connections are female screwed or flanged.
Main Features
Modulating discharge.
Discharges condensate below steam temperature.
Excellent air discharge.
Operates on superheated steam.
Unaffected by waterhammer and vibrations.
Built-in strainer.
Options : DIN or ANSI flanged connections.
Use:
Saturated and superheated steam.
Available
Models : BM 20
Sizes : DN 1/2”, 3/4” - DN15 - DN20
Connections : Female screwed ISO 7/1 Rp (BS21)
Flanged DIN or ANSI.
Installation :
Horizontal or vertical installation.
See IMI installation and maintenance
instructions.
PMA : Max.allowble pressure
TMA : Max.allowble temperature
PMO : Max.operating pressure
TMO : Max.operating temperature
How to order : i.e. BM 20 DN 15 DIN.
32 bar
300 o C
17 bar
250 o C
Materials :
Pos.NR. Designation Material
1 Body C 22.8
2 Cover C 22.8
3 * Gasket Non Asbestos
4 * Valve Assy. ST.Steel
5 * Strainer Screen AISI 304
6* Gasket St.St/GRAPHITE
7 Plug C 22.8
8 Bolts Steel 8.8
* Available spare parts
DIMENSIONS (mm)
SCREWED ENDS DIN FLANGES
SIZE A B C D WEIGHT E WEIGHT
DN Kg Kg
1/2" 95 59 95 65 1.6 150 3.2
3/4" 95 59 95 65 1.6 150 3.3
1" 95 65 95 65 1.8 160 4.7
Flow rate capacity in Kg/h
Differential pressure (bar)
model size 0.5 1 2 4 6 8 10 12 14 17
BM 20 1/2”-1” A 125 200 420 410 445 485 500 540 580 600
BM 20 1/2”-1” B 425 700 1000 1220 1340 1450 1560 1650 1780 1850
A = Condensate discharge at 10 o C below saturation temperature. B = Cold water capacity at about 20 o C

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ADCA
INSTALLATION AND MAINTENANCE INSTRUCTIONS
BM - BIMETALIC STEAM TRAPS
BSS – BM20 – BM32
GENERAL
1. These instructions must be carefully read before any work involving products supplied by
VALSTEAM ADCA ENGINEERING S.A. is undertaken.
2. The installation procedure is a critical stage in a life of a steam trap and care should be taken
to avoid damage to the trap or equipment.
Warning!
-At start up, the presence of small particles in the water (dirt, scale, weld splatters, etc) may
cause an unperfected closure of the seat. If this occurs, proceed to an accurate cleaning.
-Do not touch the equipment without appropriate protection during working operation because it
may conduct heat if the used fluid is at high temperature.
-Before starting maintenance be sure that the equipment is not pressurized or hot.
-The equipments must be used within the working temperature and pressure limits laid down for
them, otherwise they may fail (refer to nameplate and/or IS- Information Sheet).
-Do not remove the nameplate attached to the equipment. Serial number and other useful
information is stamped on it.
INSTALLATION
1. Before to install remove plastic covers placed on flanges or connection ends. The equipment
has an arrow or Inlet/Outlet designations. Be sure that it will be installed on the appropriate
direction.
2. Install the steam trap in the point of the system, where the condensate tends to collect. It can
be installed in any position. An ADCA strainer can be installed upstream of the trap as
additional protection.
LIMITING CONDITIONS BSS BM20 BM32
PMA: Max. allowable pressure 45 bar 32 bar 32 bar
TMA: Max. allowable temperature 300 ºC 300 ºC 300 ºC
PMO: Max. operating pressure 20 bar 17 bar 22 bar
TMO: Max. operating temperature 250 ºC 250 ºC 250 ºC
MAINTENANCE
1. We recommend that the steam traps are serviced as necessary. Steam traps should be
checked periodically (at least yearly), to verify that they are operating correctly and to clean
the internal parts and strainer screen.
2. When reassembling make sure that all gasket faces are clean and always use a new gasket.
Tighten cover bolts uniformly in a diagonal sequence.
3. For further information refer to the relevant IS (Information Sheet) or consult our Sales Office.
VALSTEAM ADCA
We reserve the right to change the design and material of this product without notice.
Produced in accordance with Article 3, paragraph 3 of the PED - European Pressure Equipment Directive - 97/23/EC. IMI 1.423 E 12.05

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ADCA
CE Marking :
This product have been designed for use on steam and water which are in Group 2 of the PED-
European Pressure Equipment Directive 97/23/EC and it comply with those requirements.
The product fall within category SEP and must not be CE marked.
PARTS LIST FOR BSS 20:
CODE DESIGNATION
TRAP SIZE
DN
POS.NR. QTY.
A.95.5010.015 Valve regulator & gasket ½” 3 1 set
A.95.5010.115 Strainer screen ½” 5 1 set
Recommended tightening torques:
POS.NR.
TRAP SIZE
DN
Nm
1-2 ½” 140
3 ½” 50-55
PARTS LIST FOR BM 20:
CODE DESIGNATION
TRAP SIZE
DN
POS.NR. QTY.
A.95.5081.015 Valve regulator & gasket ½” - 3/4'' 3, 4 1 set
A.95.5100.115 Strainer screen & gasket ½” - 3/4'' 5, 6 1 set
Recommended tightening torques:
POS.NR.
TRAP SIZE
DN
Nm
4 ½” - 3/4'' 120
7 ½” - 3/4'' 90
VALSTEAM ADCA
We reserve the right to change the design and material of this product without notice.
Produced in accordance with Article 3, paragraph 3 of the PED - European Pressure Equipment Directive - 97/23/EC. IMI 1.423 E 12.05

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ADCA
PARTS LIST FOR BM 32:
CODE DESIGNATION
TRAP SIZE
DN
POS.NR. QTY.
A.95.5100.015 Valve regulator & gasket ½” - 1'' 3, 4 1 set
A.95.5100.115 Strainer screen & gasket ½” - 1'' 5, 7 1 set
Recommended tightening torques:
POS.NR.
TRAP SIZE
DN
Nm
4 ½” - 1'' 120
6 ½” - 1'' 90
LOSS OF GUARANTEE: Total or partial disregard of above instructions involves loss of any right to guarantee.
VALSTEAM ADCA
We reserve the right to change the design and material of this product without notice.
Produced in accordance with Article 3, paragraph 3 of the PED - European Pressure Equipment Directive - 97/23/EC. IMI 1.423 E 12.05