Steam traps Ball float
8
Spare parts The spare parts available are shown in heavy outline. Parts drawn in a grey line are not supplied as spares. Available spares Main valve assembly with float (DN15, DN20 and DN25 horizontal traps) *
5, 6, 7, 8, 9, 10, 11
Main valve assembly with integral erosion deflector (DN40 and 50) ** (specify horizontal or vertical trap)
5, 6, 7, 12, 26
5, 6, 7, 8, 9, 10, 11
Main valve assembly with float (DN15, DN20 and DN25 vertical traps only)
8
Ball float (DN40 and 50)
17, 18
Air vent assembly
17, 18, 19, 20, 21
Steam lock release and air vent assembly (FT47-C)
3, 6, 18, 20, 21
Complete set of gaskets (packet of 3 sets)
* On horizontal traps the erosion deflector on the DN15, DN20 and DN25 is pressed into the body during manufacture and not available as a spare. ** There is no erosion deflector on vertical traps in sizes DN40 and DN50. How to order spares Always order spares by using the description given in the column headed 'Available spares' and state the size and type of trap, including pressure range and orientation i.e.: horizontal or vertical connections. Example: 1 - Air vent assembly for a Spirax Sarco DN20 FT47-21 ball float steam trap, with horizontal connections.
Steam lock release assembly
Dowel
3
2
18
Air vent assembly 17
5.5.94
19 20
2
8.5 107
Main valve assembly with float (DN15, DN20 and DN25)
8
6 5 10
7
11 9
Main valve assembly (DN40 and DN50) (horizontal assembly shown)
12
8
6 26 5 7
Recommended tightening torques
or mm
or mm
Item Part
N m
Item Part
N m
DN15, 20 and 25 17 A/F M10 x 60 19 - 22 DN40 19 A/F M16 x 85 60 - 66 DN50 24 A/F M16 x 85 80 - 88
DN15, 20 and 25
M5 x 20 2.5 - 2.8
2
7
DN40 DN50
10 A/F M6 x 20 10 - 12 13 A/F M8 x 20 20 - 24
5
17 19
DN15, 20 and 25 17 A/F
50 - 55
17 A/F 22 A/F
50 - 55 50 - 55
TI-P142-01 CMGT Issue 15
Page 7 of 7
FT47 SG Iron Ball Float Steam Traps (DN15 to DN50)
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