Steam traps Thermodynamic
8
Pressure/temperature limits
0 100 200 255 300 400
Steam saturation curve
0
10
20
30 40 42 50
63
Pressure bar g
The product must not be used in this region. For optimum product performance the PMO should not exceed 42 bar g.
Body design conditions
PN63
PMA Maximum allowable pressure
63 bar g @ 100 °C
TMA Maximum allowable temperature
400 °C @ 42 bar g
Minimum allowable temperature
-10 °C
PMO Maximum operating pressure for saturated steam service
42 bar g
TMO Maximum operating temperature
255 °C
Minimum operating temperature Note: For lower operating temperatures consult Spirax Sarco.
0 °C
PMOB Maximum backpressure should not exceed 80% of PMOB the inlet pressure under any conditions of operation otherwise the trap may not shut-off. Minimum operating differential pressure for satisfactory operation 0.8 bar g
Product is safe for use under full vacuum conditions Designed for a maximum cold hydraulic test pressure of:
95 bar g
Capacities
8.7 29
Differential pressure bar (x 100 = kPa)
TI-P151-04 CMGT Issue 7
Page 3 of 5
TD42A Thermodynamic Steam Trap
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