44
Control systems Safety valves
Pressure/temperature limits
Pressure psi g
0
29
58
87
116 145 174 203 232
302
Steam saturation curve
212
122
32 -49
Pressure bar g
The product must not be used in this region.
Body design conditions
PN16
Maximum 16 bar g
232 psi g
DN25 and DN40 (1" and 1½")
Minimum 0.1 bar g
1.45 psi g
Maximum 15 bar g
218 psi g
DN50 (2")
Minimum 0.2 bar g
2.9 psi g
4.7 118
Set pressure range
Maximum 10.34 bar g
150 psi g
DN65 and DN80 (2½" and 3")
Minimum 0.1 bar g
1.45 psi g
Maximum 8.2 bar g
119 psi g
DN100 (4")
Minimum 0.1 bar g
1.45 psi g
With EPDM soft seat
Maximum
150 °C
302 °F
Temperature
All versions
Minimum
-45 °C
-49 °F
Steam, gas
Maximum
10%
Overpressure
Liquid
Maximum
10%
Steam, gas
Maximum
10%
Blowdown limits
Performance data
Liquids
Maximum
20%
Steam, gas
0.70
Derated coefficient of discharge values d
Liquid
0.45
Maximum permitted backpressure
10% of set pressure
Designed for a maximum inlet cold hydraulic test pressure of:
24 bar g
348 psi g
TI-P315-03 CTLS Issue 12
Page 4 of 9
SVL488 Stainless Steel Sanitary Safety Valve
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