Spirax Sarco - Catalogo Agosto 2017

Steam traps

Thermodynamic

ISO 9001

5.7.19

Steam

saturation

curve

TI-P068-07

ST Issue 9

Cert. No. LRQ 0963008

Description

The TD42S2 is a thermodynamic steam trap with forged steel body

and socket weld ends.

A full range of lower capacity traps (1⁄2" - 1") designated TD42S2LC

are available for applications such as mains drainage or tracing.

Please note:

For low temperature applications down to -46°C use the TD42S3

(ASTM A350 LF2) - See TI-P068-23 for further information.

Standards

This product fully complies with the requirements of the European

Pressure Equipment Directive 97 /23 / EC.

Certification

This product is available with certification to EN 10204 3.1.

Note: All certification/inspection requirements must be stated at

the time of order placement.

Optional extras

Insulating cover: To prevent the trap being unduly influenced by

excessive heat loss such as when subjected to low outside

temperatures, wind, rain etc.

Materials

No. Part

Body

Cap

Disc

Strainer screen

Strainer cap

Strainer cap gasket

TD42S2

Thermodynamic Steam Traps

Sizes and pipe connections

1⁄2"LC, 3⁄4"LC, 1"LC, 1⁄2", 3⁄4" and 1" socket weld ends to:

ASME (ANSI) B 16.11 Schedule 80 / BS 3799 Class 3000 lb.

Integral blowdown valve: A BDV1 or BDV2 can be fitted to the

strainer cap, alternatively the strainer cap can be drilled, tapped

and plugged " BSP or NPT.

Pressure/temperature limits (ISO 6552)

Please note: For low temperature applications down to -46°C

use the TD42S3 (ASTM A350 LF2) - See TI-P068-23 for further

information.

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Note: Upon prolonged exposure to temperatures above 425°C, the

carbide phase of steel may be converted to graphite. Permissible

but not recommended for prolonged use above 425°C.

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Pressure bar g

The product must not be used in this region.

The product should not be used in this region.

Material

Steel

Stainless steel

Steel

Stainless steel

ASTM A105N

AISI 416

BS 1449 420 S45

AISI 316L

ASTM A105N

BS 1449 304 S16

Body design conditions

PMA Maximum allowable pressure

TMA Maximum allowable temperature

Minimum allowable temperature

PMO

Maximum operating pressure

for saturated steam service

TMO Maximum operating temperature

Minimum operating temperature

ANSI/ASME 300

51 bar g @ 38°C

427°C @ 28 bar g

0°C

42 bar g

400°C @ 34 bar g

* 7

Insulating cover

(optional extra)

Aluminium

* Note: Item 7 is shown on the spares illustration overleaf.

0°C

Note: For lower operating temperatures consult Spirax Sarco

PMX Maximum differential pressure

42 bar

PMOB

Maximum operating backpressure should not exceed

80% of the inlet pressure.

Minimum inlet pressure for satisfactory operation

0.25 bar g

Designed for a maximum cold hydraulic test pressure of 76 bar g

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.