Spirax Sarco FT44 - Page 15

IM-S02-30 CMGT Issue 14
15
FT43, FT44, FT46 and FT47 Ball Float Steam Traps
FT47 DN40 and DN50
DN50 shown
Pressure/temperature limits
Pressure psi g
Temperature °F
Pressure bar g
Temperature °C
C
A
The product must not be used in this region.
This product should not be used in this region as damage to the internals may occur.
A - B Flanged EN 1092 PN25/40.
A - C Flanged ASME 150.
Body design conditions PN40
PMA Maximum allowable pressure 40 bar g @ 100 °C (580 psi g @ 212 °F)
TMA Maximum allowable temperature 300 °C @ 28 bar g (572 °F @ 406 psi g)
Minimum allowable temperature -10 °C (14 °F)
PMO
Maximum operating pressure for saturated
steam service
32 bar g @ 239 °C (464 psi g @ 462 °F)
Note: The DN40 and DN50 traps are limited to a PMO equal to ∆PMX
TMO Maximum operating temperature 285 °C @ 29 bar g (545 °F @ 420 psi g)
Minimum operating temperature 0 °C (32 °F)
Note: For lower operating temperatures consult Spirax Sarco
DPMX
Maximum
differential
pressure
Size DN15, DN20, DN25 DN40, DN50
FT47- 4.5 4.5 bar 4.5 bar (65 psi)
FT47-10 10 bar 10 bar (145 psi)
FT47-14 14 bar - (203 psi)
FT47-21 21 bar 21 bar (304 psi)
FT47- 32 32 bar 25.5 bar (464 psi)
Designed for a maximum cold hydraulic test pressure: 60 bar g (870 psi g)
Note: With internals fitted, test pressure must not exceed PMX
Caution: The trap in its complete operational form must not be subjected to a pressure greater than 48 bar
otherwise damage to the internal mechanism may result.
B
Steam saturation
curve