Pipeline ancillaries
HVB3aslltvoaplveaslve
Steam
saturation
curve
C
B
7.4.121
A
A
Steam
saturation
curve
C
B
Pressure / temperature limits
M40Si2 ISO and M40Si3 ISO - PDR 0.8 seats
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M40Vi2 ISO and M40Vi3 ISO - PTFE seats
A - B
A - C
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The product must not be used in this region.
Flanged ASME 300
Flanged ASME 150
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Pressure bar g
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Pressure bar g
Body design conditions
PMA Maximum allowable pressure
TMA Maximum allowable temperature
Minimum allowable temperature
PMO Maximum operating pressure for saturated steam service
TMO Maximum operating temperature
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco
PMX MaximumdifferentialpressureislimitedtothePMO
Designed for a maximum cold hydraulic test pressure of :
M40Si
M40Vi
M40Si
M40Vi
M40Si
M40Vi
ASME 150
ASME 300
ASME 150
ASME 300
ASME 150
ASME 300
ASME 150 and ASME 300
19 bar g @ 38 °C
51 bar g @ 38 °C
260 °C @ 0 bar g
230 °C @ 0 bar g
-29 °C
13.8 bar g
17.5 bar g
10 bar g
260 °C @ 0 bar g
230 °C @ 0 bar g
-29 °C
28.5 bar g
76.5 bar g
TI-P133-78 ST Issue 6
M40Si ISO and M40Vi ISO Reduced Bore Ball Valves DN25 to DN200 Flanged ASME 150 and ASME 300
Page 2 of 7
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