Product Handbook 2026 - Volume 2

Pressure/temperature limits (ISO 6552) Steam traps Swivel connectors and traps

8

Pressure psi g

0

290

580

870

1160 1440

425 300 200 100 0 -29

797 572 392 212 -20 32

Steam saturation curve

0

20

40

60

80

99.3

Pressure bar g

The product must not be used in this region. Note: The model of pipeline connector and connections selected will dictate the maximum operating limits of the complete assembly. Reference the specific pipeline connector Technical Information sheet as detailed in 'Pipeline connector options'.

Body design conditions

ASME 600

PMA Maximum allowable pressure

99.3 bar g @ 38 °C 1440 psi g @ 100 °F

TMA Maximum allowable temperature

425 °C @ 56 bar g

797 °F @ 812 psi g

Minimum allowable temperature

-29 °C

-20 °F

PMO Maximum operating pressure for saturated steam service

63 bar g

914 psi g

TMO Maximum operating temperature

425 °C @ 56 bar g

797 °F @ 812 psi g

Minimum operating temperature Note: For lower operating temperatures consult Spirax Sarco

0 °C

32 °F

UIB45/5 UIB45/6 UIB45/8 UIB45/10

45.0 bar

653 psi

20.0 bar

290 psi

D PMX Maximum differential pressure

8.5 bar

123 psi

4.5 bar

65 psi

Designed for a maximum cold hydraulic test pressure of

149 bar g

2161 psi

8.9 90

TI-P113-03 CMGT Issue 5

Page 2 of 5

UIB45 Sealed Inverted Bucket Steam Trap (for use with Pipeline Connectors)

Powered by