Product Handbook 2026 - Volume 2

Steam traps Balanced pressure

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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 2018

TI-P124-08 CMGT Issue 3

BPM21L Carbon Steel Balanced Pressure Thermostatic Steam Trap

5.2.30

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. Options Capsule fill and operation

Non-return/check valve All versions can be supplied with an integral check valve and are designated BPM21LCV.

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

8.2 49

Standards The product fully complies with the requirements of the Pressure Equipment Directive (PED). 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 3/8 " and ½" screwed BSP (BS 21 parallel) or NPT. Socket weld ends (½" only).

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