Steam traps

Sealed

5.8.3

ISO 9001

Steam

saturation

curve

TI-P125-02

ST Issue 4

Cert. No. LRQ 0963008

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 European

Pressure Equipment Directive 97/23/EC.

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

1⁄2" screwed BSP or NPT

Socket weld ends to BS 3799 Class 3000.

Pressure/temperature limits

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Pressure bar g

As a fixed discharge

As a steam

temperature trap

tracer trap

The product must not be used in this region.

Steam tracer trap

1

4

3

7

2

6

5

1

Body design conditions

PMA Maximum allowable pressure

TMA Maximum allowable temperature

PN25

25 bar g @ 200°C

400°C

-254°C

Fixed discharge

temperature steam trap

Minimum allowable temperature

Maximum operating pressure when used

21 bar g

7 bar g

242°C

170°C

Materials

No.

Part

1

End bosses

2

Capsule

3

Spring

4

Spring retainer

5

Space place

6

Location clip

7

Case

Material

Stainless steel

Stainless steel

Stainless steel

Stainless steel

Stainless steel

Stainless steel

Stainless steel

* PMO

TMO

as a steam tracer trap

Maximum operating pressure when used

as a fixed discharge temperature trap

Maximum operating temperature

Maximum operating temperature when used

as a fixed discharge temperature trap

ASTM A276 Gr. 304

Federal QQ-W-423

BS 1449 304 S16

BS 1449 304 S16

BS 1449 302 S25

ASTM A269 Gr. 321

© Copyright 2007

Minimum operating temperature

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

0°C

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.

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