Product Handbook 2026 - Volume 2

Steam traps Ball float

8

Dimensions / weights (approximate) in mm and kg FT43 DN40 and DN50 shown

B

C

F

A

D

E

Withdrawal distance

A *

Size

PN16 JIS / KS 10

ASME 125

B

C

D

E

F

Weight

DN25

160

148

110

80

245

160

215

8.3

DN40 DN50

230

221

128

110

330

200

200

21.5

230

220

140

126

340

200

225

30.5

* The face-to-face dimensions for the PN16 are in accordance with ISO 6554; for other flange variants, please contact Spirax Sarco.

Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions (IM-S02-30) supplied with the product. Installation note: The FT43 must be installed with the direction of flow as indicated on the body, and with the float arm in a horizontal plane so that it rises and falls vertically. Disposal This product is recyclable. No ecological hazard is anticipated with the disposal of this product providing due care is taken.

5.5.67

How to order Example: 1 off Spirax Sarco DN25 FT43-4.5 ball float steam trap, flanged to EN 1092 PN16 with cast iron body and cover with thermostatic air vent.

8.5 68

TI-S02-21 CMGT Issue 14

Page 6 of 7

FT43 Cast Iron Ball Float Steam Trap DN25 to DN50

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