Product Handbook 2026 - Volume 2

Steam traps Balanced pressure

8

Pressure/temperature limits (ISO 6552)

Pressure psi g

464

0

143

290

435

580

725

752 572 392 212 32

Steam saturation curve

Pressure bar g

The product must not be used in this region. The product should not be used in this region or beyond its operating range as damage to the internals may occur.

A - B Screwed, socket weld, butt weld and flanged ANSI 300. A - C Flanged EN 1092 PN40.

A - D Flanged JIS/KS 20K. A - E Flanged ANSI 150. F - G Flanged JIS/KS 10K.

Body design conditions

PN40

5.2.35

PMA Maximum allowable pressure

50 bar g @ 50 °C 725 psi g @ 122 °F

TMA Maximum allowable temperature

400 °C @ 35 bar g 752 °F @ 508 psi g

Minimum allowable temperature

-60 °C

-76 °F

PMO Maximum operating pressure for saturated steam service

32 bar g @ 281 °C 464 psi g @ 537 °F

TMO Maximum operating temperature

281 °C @ 32 bar g 537 °F @ 464 psi g

Minimum operating temperature

0 °C

32 °F

Note: For lower operating temperatures consult Spirax Sarco. BPC32 and BPC32Y product ranges are verified safe for use under full vacuum conditions for screwed, socket weld, butt weld and flanged connections. Note : Please consult Spirax Sarco to confirm full vacuum suitability, for other pipe connections. Designed for a maximum cold hydraulic test pressure of: 75 bar g 1088 psi g

8.2 54

TI-P005-01 CMGT Issue 9

Page 2 of 5

BPC32 and BPC32Y Carbon Steel Balanced Pressure Thermostatic Steam Traps

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