Steam traps

Local regulations may restrict the use of this product to below the conditions quoted.

Balanced pressure

In the interests of development and improvement of the product, we reserve the right to change the specification without notice. © Copyright 2017

TI-P126-06

ST Issue 5

BPW32

Balanced Pressure Wafer Steam Trap

Description

The BPW32 is a compact wafer pattern stainless steel balanced pressure steam trap for pressures up to 21 bar g. It has an internal

strainer, is maintainable and is suitable for installation between two pipeline flanges. It offers both weight and space savings over

conventional traps.

Capsule filling and operation

Standard capsules are marked with the letters 'STD' for

operation at approximately 13 °C below steam saturation

temperature.

Optionally, the capsule can be supplied for sub-cooled operation

with a 'SUB' fill which operates at approximately 24 °C below

steam saturation temperature or for near-to-steam a 'NTS' fill

which operates at approximately 6 °C below steam saturation

temperature.

Standards

This product fully complies with requirements of the European

Pressure Equipment Directive 97/23/ EC.

Certification

This product is available with certification to EN 10204 3.1.

Note: All certification/inspection requirements must be stated at

the time of order placement.

Sizes and pipe connections

DN15, DN20 and DN25 to fit between standard flanges PN40,

ANSI 150, ANSI 300, JIS 10, JIS 16 and JIS 20.

Pressure/temperature limits (ISO 6552)

Pressure bar g

The product must not be used in this region.

The product should not be used in this region or beyond

its operating range as damage to the internals may occur.

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Steam

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Body design conditions

PMA Maximum allowable pressure

TMA Maximum allowable temperature

Minimum allowable temperature

PMO Maximum operating pressure

TMO Maximum operating temperature

PN50/ANSI 300

50 bar g @ 38 °C

260 °C @ 33 bar g

0 °C

21 bar g @ 260 °C

260 °C @ 21 bar g

Materials

No. Part

1 Body

2 Cap

3 Capsule

4 Spring

5 Spacer plate

6

Strainer screen

0.8 mm perforations

7 'O' ring

Material

Stainless steel

Stainless steel

Stainless steel

Stainless steel

Stainless steel

Stainless steel

DIN 17445 1.4408/

ASTM A351 CF8M

EN10088 1.4057/

ASTM A479 431

BS 2056 302 S26

BS 1449 304 S16

ASTM A240 316L

Minimum operating temperature

Note: For lower operating temperatures consult Spirax Sarco

Designed for a maximum cold hydraulic test pressure of 75 bar g

0 °C

EPDM

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