Product Handbook 2026 - Volume 2

Steam traps Ball float

8

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. The following table gives the minimum additional cold water capacities from the air vent. P (bar) 0.5 (7) 1 (15) 2 (29) 3 (44)

4.5 (65) 7 (102) 10 (145) 14 (203) 21 (305) 32 (464)

Minimum additional cold water capacity in kg/h (lb/h)

450 (992) 170 (375) 460 (1014)

600 (1323)

780 (1720) 380 (838) 900 (1984)

1040 (2293) 520 (1146) 1080 (2381) 460 (1014)

1140 (2513) 600 (1323) 1300 (2866) 600 (1323)

1350 (2976) 780 (1720) 1600 (3527) 850 (1874)

1530 (3373) 860 (1896) 1980 (4365) 900 (1984)

1750 (3858) 1140 (2513) 2050 (4519) 1020 (2249)

2300 (5071) 1170 (2579) 2600 (5732) 1200 (2646)

up to 21 bar

-

DN15 and DN20

250 (551)

1200 (2646)

32 bar only

680 (1499)

DN25, DN40 and DN50

up to 21 bar

-

90 (198)

120 (264)

350 (772)

1300 (2866)

32 bar only

Dimensions/weights (approximate) in mm (inches) and kg (lbs)

B

FT46

DN15 and DN20 (½" and ¾")

5.5.86

C

A

F

E

D

B

FT46

8.5 97

DN25, DN40 and DN50 (1", 1½" and 2")

C

F

D

E

Size

A

B

C

D

E

F

Weight

DN15

155 (6.10)

10.8 (23.8)

150 (5.91)

80 (3.15)

80 (3.15)

215 (8.46)

120 (4.72)

DN20

165 (6.50)

10.8 (23.8)

DN25

160 (6.30)

115 (4.53)

85 (3.35)

276 (10.9)

170 (6.69)

215 (8.46)

15.0 (33.1)

DN40 DN50

130 (5.12)

80 (3.15)

326 (12.8)

200 (7.87)

33.0 (72.8)

230 (9.06)

200 (7.87)

141 (5.55)

91 (3.58)

332 (13.1)

236 (9.29)

43.0 (94.8)

Face-to-face dimensions in accordance with EN 26554 (Series 1)

TI-P143-01 CMGT Issue 15

Page 7 of 10

FT46 Stainless Steel Ball Float Steam Traps DN15 to DN50 (½" to 2")

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