Control systems Pressure reducing/surplussing valves
4
Pressure/temperature limits
A D
B
E
Steam saturation curve
C
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-C Maximum operating conditions for steam D-E-C Maximum operating conditions for liquids and gases
Inlet
PN16
Body design conditions
Outlet see 'Pressure setting range' below
Maximum design pressure
15.2 bar @ 50 °C
4.6 149
Maximum design temperature
300 °C @ 9 bar g
Minimum design temperature
-10 °C
EPDM diaphragm 130 °C FPM diaphragm 180 °C
Maximum operating temperature
Maximum operating pressure (inlet)
8 bar g
Minimum operating temperature
-10 °C
Designed for a maximum cold hydraulic test pressure of:
24 bar g
Pressure setting range Size
DN40 - DN100
DN25 - DN100
DN25 - DN100
Inlet/outlet
PN16 / PN2.5
PN16 / PN6
PN16 / PN10
Spring range
0.3 - 1.1 bar g
0.8 - 2.5 bar g
2.0 - 5.0 bar g
K v values To maximise the control accuracy (especially for large load variations) use the Kv values given at 20% offset. For safety valve sizing use the maximum Kv values.
Valve size
DN25
DN40
DN50
DN65
DN80
DN100
For conversion: C v (UK) = K v x 0.93 C v (US) = K v x 1.156
K v at 20% offset
3.1
16.9
16.9
46.2
53.9
61.6
Maximum K v
4.0
22.0
22.0
60.0
70.0
80.0
TI-P186-10 CMGT Issue 4
Page 3 of 5
SRV66HC High Capacity Sanitary Pressure Reducing Valve
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