44
Control systems Pressure reducing/surplussing valves
Pressure/temperature limits
Steam saturation curve
Pressure bar g
The product must not be used in this region.
Body design conditions
PN25
Maximum allowable pressure
25 bar g @ 120 °C
Maximum allowable temperature
210 °C @ 17 bar g
Minimum allowable temperature
0 °C
Maximum operating pressure for saturated steam service
17 bar g @ 210 °C
Maximum operating temperature
210 °C @ 17 bar g
Minimum operating temperature Note: For lower operating temperatures consult Spirax Sarco.
0 °C
Maximum downstream reduced pressure
8.6 bar g
4.6 8
Maximum differential pressure
17 bar
Maximum recommended turndown ratio
10:1 at maximum flow
Designed for a maximum cold hydraulic test pressure of:
38 bar g
Note: With internals fitted, test pressure must not exceed:
17 bar g
TI-P045-09 CTLS Issue 8
Page 2 of 6
BRV2S5 and BRV2B5 Gunmetal Pressure Reducing Valves
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