Spirax Sarco FT44 - Page 13

IM-S02-30 CMGT Issue 14
13
FT43, FT44, FT46 and FT47 Ball Float Steam Traps
Pressure/temperature limits
The product must not be used in this region.
This product should not be used in this region as damage to the air vent may occur.
A - B Flanged EN 1092 PN40 and ASME (ANSI) 300.
A - C Flanged ASME (ANSI) 150.
Note: The use of the bimetallic element extends the superheat resistance to in excess of 400 °C.
Body design conditions PN40
PMA Maximum allowable pressure 40 bar g @ 100 °C (580 psi g @ 212 °F)
TMA Maximum allowable temperature 400 °C @ 27.4 bar g (752 °F @ 397 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)
TMO
Maximum
operating
temperature
When fitted with a capsule 285 °C @ 30 bar g (545 °F @ 439 psi g)
When fitted with a bimetallic air
vent
400 °C @ 27.4 bar g (752 °F @ 397 psi g)
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco
0 °C (32 °F)
PMX
Maximum differential pressure
Size
DN15
DN20
DN25
DN40
DN50
FT46-4.5 4.5 bar 4.5 bar (65 psi)
FT46-10 10 bar 10 bar (145 psi)
FT46-14 14 bar - (203 psi)
FT46-21 21 bar 21 bar (304 psi)
FT46-32 32 bar 32 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: 48 bar g (696 psi g)
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.
Pressure bar g
Temperature °C
B
A
C
Pressure psi g
Temperature °F
Steam saturation
curve