Product Handbook 2026 - Volume 2

Steam traps Thermodynamic

8

Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions (IM-P068-24) supplied with the product. Installation note The TD42L or TD42H should be installed in the horizontal plane, with a small drop leg preceeding it. Disposal This product is recycable. No ecological hazard is anticipated with the disposal of this product providing due care is taken.

How to order Example: 1 off Spirax Sarco ½" TD42L thermodynamic steam trap having screwed BSP T Rp (ISO 7-1) connections.

Spare parts The spare parts available are shown in solid outline. Parts drawn in a grey line are not supplied as spares. Available spares Disc (packet of 3) (TD42L or TD42H)

7

3

3, 4, 6

Disc and strainer screen

(TD42LA or TD42HA)

4, 6

Strainer screen and gasket

(TD42L or TD42H)

7 6

Insulating cover

Strainer cap gasket (packet of 3)

2

How to order spares Always order spares by using the description given in the column headed 'Available spares' and state the size and type of trap. Example: 1 - Strainer screen and gasket for a Spirax Sarco ½" TD42L thermodynamic steam trap.

3

8.7 37

Recommended tightening torques

4

or mm

Item Part

N m lbf ft

6

(TD42L - all sizes)

36 A/F

135 - 150 100 - 111

2

(TD42H - ½", ¾")

41 A/F

180 - 200 133 - 148

(TD42H - 1")

55 A/F

250 - 275 184 - 203

5

5

32 A/F

M28

170 - 190 125 - 140

TI-S01-03 CMGT Issue 12

Page 5 of 5

TD42L and TD42H Thermodynamic Steam Traps

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