Product Handbook 2026 - Volume 2

Steam traps Ball float

8

Pressure/temperature limits A

Steam saturation curve

C B

D

Pressure bar g

The product must not be used in this region.

A - B Flanged EN 1092 PN40, ASME 300. A - C Flanged JIS/KS 20K. A - D Flanged ASME 150.

Body design conditions

PN40

PMA Maximum allowable pressure

40 bar g @ 100 °C

TMA Maximum allowable temperature

300 °C

Minimum allowable temperature

-10 °C

PMO Maximum operating pressure for saturated steam service

32 bar g @ 239 °C

TMO Maximum operating temperature

300 °C @ 27.5 bar g

Minimum operating temperature Note: for lower operating temperatures consult Spirax Sarco

5.5.79

-10 °C

FT44-4.5

4.5 bar

FT44-10

10 bar

D PMX Maximum differential pressure

FT44-21

21 bar

FT44-32

32 bar

Product is safe for use under full vacuum conditions Designed for a maximum cold hydraulic test pressure of :

60 bar g

8.5 86

Note: With internals fitted, test pressure must not exceed :

48 bar g

TI-S02-23 CMGT Issue 14

Page 2 of 5

FT44 Cast Steel Ball Float Steam Traps DN80 and DN100

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