Steam traps Ball float
8
Sizes and pipe connections DN25, DN40 and DN50
Note: Flow direction, for FT43 horizontal orientated traps, when facing the body: - DN25 is left to right (L-R). (R-L versions are available for DN25 FT43TV PN16 only) - DN40 and DN50 is right to left (R-L). Flow direction, for FT43V vertically orientated traps is downwards only. Only the one size, DN25, is available with JIS/KS flange connections with flow vertically downward FT43V. Standard flanges are EN 1092 PN16 with face-to-face dimensions in accordance with EN 26554 (Series 1). On request - ASME B 16.1 Class 125 and JIS / KS 10 flanges are also available. Note: ASME flanges are supplied with tapped holes to receive flange bolts. JIS / KS flanges will be supplied drilled as normal with plain bolts holes.
Pressure/temperature limits
A
Steam saturation curve
Pressure bar g D B C
The product must not be used in this region.
5.5.63
A - B Flanged EN 1092 PN16. A - C Flanged ASME 125. A - D Flanged JIS/KS 10
Body design conditions
PN16
PMA Maximum allowable pressure
16 bar g @ 120 °C
TMA Maximum allowable temperature
220 °C @ 12.1 bar g
8.5 64
Minimum allowable temperature
0 °C
Maximum operating pressure for saturated steam service Note: The DN40 and DN50 traps are limited to a PMO equal to PMX
PMO
13 bar g @ 195 °C
TMO Maximum operating temperature
220 °C @ 12.1 bar g
Minimum operating temperature Note: For lower operating temperatures consult Spirax Sarco
0 °C
FT43-4.5 FT43-10 FT43-14
4.5 bar
PMX Maximum differential pressure
10 bar
13 bar
Designed for a maximum cold hydraulic test pressure of: Note: With internals fitted, test pressure must not exceed PMX
24 bar g
TI-S02-21 CMGT Issue 14
Page 2 of 7
FT43 Cast Iron Ball Float Steam Trap DN25 to DN50
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