Steam traps

Balanced pressure

5.2.25

ISO 9001

Steam

saturat

curve

ion

TI-P124-08

ST Issue 2

Cert. No. LRQ 0963008

BPM21L

Carbon Steel

Balanced Pressure Thermostatic Steam Trap

Description

The BPM21L is a compact, carbon steel, balanced pressure steam

trap, having an internal strainer. It is ideally suited for applications

where space is important such as OEM machinery.

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7

Options

Capsule fill and operation - As standard, the capsule fitted

will operate at approximately 13°C below steam saturation

temperature (STD). Alternatively, a near-to-steam capsule (NTS)

can be fitted that will operate at approximately 6°C below steam

saturation temperature or a sub-cooling capsule (SUB) can

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be fitted that will operate at approximately 24°C below steam

8

saturation temperature.

Non-return / check valve - All versions can be supplied with

an integral check valve and are designated BPM21LCV.

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5

4

3

6

Standards

The product fully complies with the requirements of the European

Pressure Equipment Directive 97 / 23 / EC.

Certification

The product is available with a manufacturers Typical Test Report.

Note: All certification/inspection requirements must be stated at

the time of order placement.

Sizes and pipe connections

" and 1⁄2" screwed BSP (BS 21 parallel) or NPT.

Socket weld ends (1⁄2" only).

Pressure / temperature limits (ISO 6552)

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Pressure bar g

Materials

The product must not be used in this region.

No. Part

Material

Steel

Stainless steel

Stainless steel

Stainless steel

Nickel reinforced exfoliated graphite

Steel

1.0460 (C22.8)

Steel M8 x 25mm BS 1506 - 621 A B7M

Stainless steel

Stainless steel

Stainless steel

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

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

© Copyright 2006

The product should not be used in this region or beyond

its operating range as damage to the internals may occur.

1.0460 (C22.8)

1

Cover

Body design conditions

PMA Maximum allowable pressure

TMA Maximum allowable temperature

Minimum allowable temperature

PMO Maximum operating pressure

TMO Maximum operating temperature

2

Capsule

PN25

3

Valve seat

25 bar g @ 120°C

4

Strainer screen

242°C @ 20 bar g

5

Cover gasket

-10°C

6

Body

21 bar g @ 217°C

7

Cover bolts

242°C @ 20 bar g

8

Valve seat gasket

0°C

9

Spacer plate

Minimum operating temperature

Designed for a maximum cold hydraulic test pressure of 38 bar g

10 Spring

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