Product Handbook 2026 - Volume 2

Steam traps Ball float

8

Pressure/temperature limits (ISO 6552)

A

Steam saturation curve

C B

Pressure bar g

The product must not be used in this region.

Body design conditions

PN16

PMA Maximum allowable pressure

16 bar g @ 120 °C

TMA Maximum allowable temperature

220 °C @ 12.1 bar g

Minimum allowable temperature

0 °C

PMO Maximum operating pressure for saturated steam service

limited to D PMX

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

4.5 bar

FT43-10

10 bar

D PMX Maximum different pressure

FT43-14

13 bar

5.5.69

Designed for a maximum cold hydraulic test pressure of

24 bar g

8.5 72

TI-S02-22 CMGT Issue 10

Page 2 of 5

FT43 Cast Iron Ball Float Steam Traps DN80 and DN100

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