B
Steam
saturation
curve
C
425
A
B
400
300
200
C
The product must not be used in
this region or beyond the parameter
of the PMA or TMA of the relative
end connection.
ASME Class 150
19.6 bar g @ 38°C
425°C @ 5.5 bar g
-29°C
13.9 bar g @ 197°C
425°C @ 5.5 bar g
-29°C
29.4 bar g
ASME Class 300
51.1 bar g @ 38°C
425°C @ 28.8 bar g
-29°C
42 bar g @ 255°C
425°C @ 28.8 bar g
-29°C
77 bar g
100
0
-29
0
10
20
Pressure bar g
Body design condition
30
40
51.1
A - B - B
A - C - C
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
Designed for a maximum cold hydraulic test pressure of:
Body design condition
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
Designed for a maximum cold hydraulic test pressure of:
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