Product Handbook 2026 - Volume 2

Steam traps Thermodynamic

8

Pressure/temperature limits (ISO 6552) - Screwed, Socket weld and Flanged EN 1092

Pressure psi g

0

290 C

580

870 1160

1450

Screwed Socket weld Flanged: PN40 PN100

A

B

32 212 392 572 752 842

0 100 200 300 400 450

Steam saturation curve

C

B

0

20

40

60

80

100

Pressure bar g

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

Body design conditions

PN100

PMA Maximum allowable pressure

100 bar g @ 50 °C

1450 psi g @ 122 °F

TMA Maximum allowable temperature

450 °C @ 58.3 bar g

842 °F @ 846 psi g

Minimum allowable temperature

-50 °C

-58 °F

PMO Maximum operating pressure

46 bar g @ 450 °C

667 psi g @ 842 °F

PN100 Screwed Socket weld

A - B - B

TMO Maximum operating temperature

450 °C @ 46 bar g

842 °F @ 667 psi g

Minimum operating temperature

0 °C

32 °F

Minimum operating pressure

1.5 bar g

22 psi g

Maximum operating backpressure

80% of upstream pressure

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

150 bar g

2176 psi g

Body design conditions

PN40

PMA Maximum allowable pressure

40 bar g @ 50 °C

580 psi g @ 122 °F

TMA Maximum allowable temperature

450 °C @ 23.3 bar g

842 °F @ 338 psi g

Minimum allowable temperature

-50 °C

-58 °F

Maximum operating pressure for saturated steam service

8.7 69

PMO

28.4 bar g @ 233 °C

412 psi g @ 451 °F

A - C - C PN40

TMO Maximum operating temperature

450 °C @ 23.3 bar g

842 °F @ 338 psi g

Minimum operating temperature

0 °C

32 °F

Minimum operating pressure

1.5 bar g

22 psi g

Maximum operating backpressure

80% of upstream pressure

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

60 bar g

870 psi g

TI-P187-02 CMGT Issue 11

Page 3 of 7

TDS46M Thermodynamic Steam Trap with Maintainable Seat

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