Product Handbook 2026 - Volume 2

Steam traps Ball float

8

Capacities

5.5.74

8.5 81

Differential pressure bar (x 100 = kPa)

Additional cold water capacities from the thermostatic air vent under start-up conditions Capacities shown above are based on condensate at saturation temperature. Under start-up conditions when the condensate is cold the internal thermostatic air vent will be open and provides additional capacity to the main valve. D P (bar) 0.5 1 2 3 4.5 7 10 14 21 32 Minimum additional cold water capacity (kg/h) DN15 and DN20 up to 21 bar 450 600 780 1 040 1 140 1 350 1 530 1 750 2 300 - 32 bar only 170 250 380 520 600 780 860 1 140 1 170 1 200

DN25, DN40 and DN50

up to 21 bar

460 680 900 1 080 1 300 1 600 1 980 2 050 2 600 -

The table opposite gives the minimum additional cold water capacities from the air vent.

32 bar only

90 120 350 460 600 850 900 1 020 1 200 1 300

TI-S02-14 CMGT Issue 18

Page 5 of 7

FT44 Carbon Steel Ball Float Steam Traps (DN15 to DN50)

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