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Control systems Safety valves
Pressure/temperature limits - SV604
The product must not be used in this region.
PN40 inlet
A tungsten alloy spring must be used in this region. Consult Spirax Sarco for further information.
Steam saturation curve
Pressure bar g
Body design conditions
PN40
Size
Saturated steam
Air
Water
DN20 x DN32
29 bar g
40 bar g 40 bar g
DN25 x DN40
29 bar g
40 bar g 40 bar g
DN32 x DN50
29 bar g
40 bar g 40 bar g
DN40 x DN65
29 bar g
40 bar g 40 bar g
DN50 x DN80
29 bar g
40 bar g 40 bar g
Set pressure range maximum
PN40
DN65 x DN100
29 bar g
32 bar g 32 bar g
4.7 40
DN80 x DN125
29 bar g
32 bar g 32 bar g
DN100 x DN150
25 bar g
25 bar g 25 bar g
DN125 x DN200
20 bar g
20 bar g 20 bar g
DN150 x DN250
16 bar g
16 bar g 16 bar g
Set pressure range minimum
0.2 bar g
Maximum
400°C
Temperature
Minimum
-10°C
Steam
5%
Overpressure
Liquids and gas
10%
Steam and gas
10%
Performance data
Blowdown limit
Liquids
20%
Backpressure limit
10% of set pressure
Designed for a maximum inlet cold hydraulic test pressure of:
60 bar g
TI-S13-27 CMGT Issue 17
Page 2 of 13
SV60 Safety Valve
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