44
Control systems Pressure reducing/surplussing valves
Pressure/temperature limits
Pressure psi g
0
29
58
87
116 138
572
356 212
Steam saturation curve
32 14
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.
Body design conditions
Inlet
PN10
Outlet
see 'Pressure setting range' below
9.5 bar @ 50 ° C
Maximum design pressure
(138 psi g @ 122 °F)
300 ° C @ 5.8 bar
Maximum design temperature
(572 °F @ 84 psi g)
4.6 142
Minimum design temperature
-10 °C
(14 °F)
Maximum operating temperature
180 °C
(356 °F)
Maximum operating pressure (inlet)
8 bar g
(116 psi g)
Minimum operating temperature
-10 °C
(14 °F)
Designed for a maximum cold hydraulic test pressure of:
15.2 bar g
(220 psi g)
Pressure setting range Size
DN15 - DN50 (½" - 2")
Inlet/outlet rating
PN10/PN2.5
PN10/PN6
PN10/PN10
0.3 - 1.1 bar g (4.4 - 16.0 psi g)
0.8 - 2.5 bar g (11.6 - 36.3 psi g)
1.0 - 5.0 bar g (14.5 - 72.5 psi g)
Spring range
Maximum permitted outlet pressure = 1.5 times maximum set pressure
Kv 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.
DN15 DN50 Standard Reduced Standard Reduced Standard Reduced Standard Reduced Standard Reduced Standard Reduced DN20 DN25 DN32 DN40
Valve Size
Kv at 20% offset
1.6
0.7
2.4
0.7
3.2
0.7
4
4.8
5.6
Maximum Kv
2
0.9
2
0.9
4
0.9
5
6
7
For conversions: CV (UK) = KV x 0.963 CV (US) = KV x 1.156
TI-P186-08 CTLS Issue 19
Page 2 of 5
SRV66 Sanitary Pressure Reducing Valve
Powered by FlippingBook