Steam traps

Ball float

5.5.11

0.5 1

2 3

4.5 7 10

70

140

250

380

560

870

1130

120

240

360

500

640

920

1 220

Capacities

�� ������

�� ������

������

������

������

������

������

����

����

����

������

������

������

������ ������

��

��

��

��

��

����

����

Differential pressure bar (x 100 = kPa)

Capacities shown above are based on condensate at saturation temperature. When discharging sub-cooled condensate the air vent

provides extra capacity. 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. On 4.5 bar units this will provide a minimum of 50% increased capacity above the hot condensate

figures shown. On 10 and 14 bar units this will be a minimum increase of 100% on the published capacity. The following table gives the

minimum additional cold water capacities from the air vent.

P (bar)

DN15 and DN20

DN25

Minimum additional cold water capacity (kg/h)

14

1500

1 500

TI-S02-26 ST Issue 8

FT14 Ball Float Steam Trap (Flanged)

Page 2 of 3

����

������������������

������������������������

C

o

n

d

e

n

s

a

t

e

k

g

/

h

����������������������������

����������������������������������������������

����������������������������������������������