Product Handbook 2026 - Volume 2

Steam traps Thermodynamic

8

Spare parts Please note that the spares shown are the same for the screwed, socket weld and flanged versions. The spare parts available are shown in solid outline. Parts drawn in a grey line are not supplied as spares.

3

Available spares Insulating cover

3

2 , 4 , 5 , 6 , 7 , 8

Top cap, seat and disc assembly

2

9 , 10

Strainer screen and gasket

8 , 10

Set of gaskets (packet of 3 sets)

BDV1 blowdown valve retrofit kit

4

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 off Top cap, seat and disc assembly for a Spirax Sarco DN15 TDC46M thermodynamic steam trap. Cautionary note regarding disassembly and assembly of the unit: Removal of the following parts: - top cap (2), - strainer cap (11) and the - optional BDV2 retrofit kit should be carried out in a workshop, not whilst the trap is installed inline. For socket weld installations the unit can be maintained inline however care should be taken to avoid damage to pipework.

7

Top cap, seat and disc assembly

6

5

8

8.7 66

9

BDV1 Retrofit kit

10

11 (not an available spare)

11

Recommended tightening torques (for suitably lubricated threads)

Item Part

mm N m (lbf ft)

2

Top cap

50 A/F

300

221

11

Strainer cap

24 A/F 105 - 110

81

TI-P187-04 CMGT Issue 12

Page 10 of 10

TDC46M Carbon Steel Thermodynamic Steam Trap with Maintainable Seat

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