Product Handbook 2026 - Volume 2

Steam traps Thermodynamic

8

Pressure/temperature limits (ISO 6552) - Flanged ASME

Pressure psi g

0

290

580

870

1160

1450

797 752 572 392 212 32

500 400 300 200 100 0

A

D

425

ASME Class 150

D

0

20

40

60

80

100

Pressure bar g

Steam saturation curve

The product must not be used in this region or beyond the parameter of the PMA or TMA of the relative end connection.

0

290

580 667 870

1160

1450

797 752 572 392 212 32

500 400 300 200 100 0

Body design condition

ASME Class 150

425

PMA Maximum allowable pressure

19.6 bar g @ 38 °C

284 psi g @ 100 °F

TMA Maximum allowable temperature

425 °C @ 5.5 bar g

797 °F @ 80 psi g

Minimum allowable temperature

-29 °C

-20.2 °F

PMO Maximum operating pressure for saturated steam service

14 bar g

203 psi g

0

20

40 46 60

80

100

A - D - D

TMO Maximum operating temperature

425 °C @ 5.5 bar g

797 °F @ 80 psi g

Minimum operating temperature

0 °C

32 °F

Minimum operating pressure

1.5 barg

22 psi g

Maximum operating backpressure

80% of upstream pressure

0

290

580 667 870

1160

1450

797 752 572 392 212 32

500 400 300 200 100 0

425 Product is safe for use under full vacuum conditions Designed for a maximum cold hydraulic test pressure of:

29.4 bar g

22 psi g

0

20

40 46 60

80

100

8.7 61

TI-P187-04 CMGT Issue 12

Page 5 of 10

TDC46M Carbon Steel Thermodynamic Steam Trap with Maintainable Seat

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