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 2025
TI-P125-08 CMGT Issue 11
MST21 Stainless Steel Balanced Pressure Thermostatic Steam Trap Description The MST21 is a maintainable balanced pressure thermostatic steam trap designed for relatively small condensate loads usually associated with instrument tracing applications. It is manufactured in stainless steel and is corrosion resistant and easily maintainable. Available types MST21 Standard capacity for tracing loads (standard unit) MST21H High capacity for special applications
Note : When placing an order always state the capsule fill.
Capsule fill and operation Standard capsules are marked with the letter 'STD' for operation at approximately 10 °C (18 °F)) below steam saturation temperature. Optionally the capsule can be supplied for sub cooled 'SUB' operation at approximately 22 °C (40 °F) below steam saturation temperature or a 'NTS' fill capsule for operation at approximately 4 °C (8 °F) below steam saturation temperature. Standards This product fully complies with the requirements of the European Pressure Equipment Directive 2014/68/EU. Certification
5.2.6
This product is available with a manufacturers' Typical Test Report. Note : All certification/inspection requirements must be stated at the time of order placement.
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Sizes and pipe connections MST21 ¼" " and ½"
screwed BSP T Rp (ISO 7-1), EN ISO 228-1, or NPT.
MST21H
½", ¾" and 1"
screwed BSP T Rp (ISO 7-1), EN ISO 228-1, or NPT.
TI-P125-08 CMGT Issue 11
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MST21 Stainless Steel Balanced Pressure Thermostatic Steam Trap
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