Steam traps Bimetallic
8
Pressure/temperature limits
Pressure psi g
0
145
290
435
580
725
870 1015 1160 1305 1450 1595 1740
842 752 572 392 212 32
450
Steam saturation curve
80
100
120
90
110
Pressure bar g
The product must not be used in this region.
Body design condition
Class 600
PMA Maximum allowable pressure
103.4 bar g @ 50 °C 1500 psi g @ 122 °F
TMA Maximum allowable temperature
450 °C @ 67.7 bar g
842 °F @ 982 psi g
PMO Maximum operating pressure
70 bar g @ 425 °C 1015 psi g @ 797 °F
TMO Maximum operating temperature
425 °C @ 70 bar g
797 °F @ 1015 psi g
Minimum allowable temperature
-14 °C
6.8 °F
Minimum inlet pressure for satisfactory operation is:
20 bar g
290 psi g
Minimum operating temperature
0 °C
32 °F
D PMX The backpressure for correct operation must not exceed 90% of the upstream pressure Designed for a maximum cold hydraulic test pressure of:
156 bar g
2262 psi g
Dimensions/weights (approximately) in mm (inches) and kg (lbs)
D Withdrawal distance for bimetallic element
8.3 27
B
C
A
A
B
C
D
Weight
160 (6.3)
145 (5.7)
58 (2.3)
150 (5.9)
10.5 (23.1)
TI-P071-01 CMGT Issue 5
Page 3 of 5
HP70 Series Bimetallic Steam Trap
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