Product Handbook 2026 - Volume 2

Steam traps Sealed

8

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-P125-02 CMGT Issue 5

TSS21 Stainless Steel Sealed Thermostatic Steam Tracer Trap

Description The TSS21 all stainless steel steam tracer trap is a completely sealed unit and therefore has no gasketed joints. It is operated thermostatically using a balanced pressure capsule and is specifically suitable for non critical tracing applications. It is however a dual purpose trap in that it can be fitted in the reverse mode where it will operate as a fixed temperature discharge steam trap. The trap fitted in the reverse mode will limit the downstream temperature to approximately 90 °C when discharging to atmosphere. Standards This product fully complies with the requirements of the Pressure Equipment Directive (PED). Certification This product is available with a manufacturer’s Typical Test Report. Note: All certification/inspection requirements must be stated at time of order placement.

Sizes and pipe connections ½ " screwed BSP or NPT Socket weld ends to BS 3799 Class 3000.

5.8.6

Steam tracer trap

Materials No.Part 1 End bosses

Material

Stainless steel

ASTM A276 Gr. 304

1

2 Capsule

Stainless steel

3 Spring

Stainless steel

Federal QQ-W-423

8.8 5

4 Spring retainer

Stainless steel

BS 1449 304 S16

2 5 6 7 3 4

5 Space place

Stainless steel

BS 1449 304 S16

6 Location clip

Stainless steel

BS 1449 302 S25

7 Case

Stainless steel

ASTM A269 Gr. 321

1

Fixed discharge temperature steam trap

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