UK Product Handbook 2026 - Volume 2

Steam traps Balanced pressure

8

Pressure/temperature limits (ISO 6552)

Pressure psi g

0

29

58

87

116

145

150 177

351 302

212

100

Steam saturation curve

122

50

32

0

2

4

6

8

10

0

Pressure bar g

The product must not be used in this region. The product should not be used in this region as damage to the internals may occur.

Note: For hygienic/sanitary clamp ends the maximum pressure/temperature may be restricted by the gasket or sanitary clamp used. Please consult Spirax Sarco.

Body design condition

PN10

PMA Maximum allowable pressure

10 bar g @ 140 °C

145 psi g @ 284 °F

TMA Maximum allowable temperature

177 °C @ 9.2 bar g

351 °F @ 139 psi g

Minimum allowable temperature

-10 °C

14 °F

PMO Maximum operating pressure for saturated steam service

6 bar g

87 psi g

TMO Maximum operating temperature

165 °C @ 6 bar g

329 °F @ 87 psi g

Minimum operating temperature

0 °C

32 °F

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

15 bar g

218 psi g

Note: Refer to IM-P180-31 for instruction on how to perform hydraulic testing.

8.2 38

TI-P180-30 CMGT Issue 18

Page 4 of 7

BT6-B and BT6-B Food+ Sanitary Balanced Pressure Thermostatic Steam Trap

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