Spirax Sarco FT43 - Page 17

IM-IBR17-49IN Issue 1 17
Table 1 Recommended tightening torques
Item
No.
Size
or
mm
N m (lbf ft)
2*
DN15,
DN20,
DN25
17 A/F M10 x 30 29 - 33 (19 - 24)
DN40 24 A/F M12 x 60 60 - 66 (44 - 48)
DN50 24 A/F M16 x 70 80 - 88 (58 - 65)
5
DN15,
DN20,
DN25
50 - 55 (37 - 40)
7
DN15,
DN20,
DN25
M5 x 20 2.5 - 2.8 (1.8 - 2.1)
DN40 10 A/F M6 x 20 10 - 12 (7.0 - 9.0)
DN50 13 A/F M8 x 20 20 - 24 (15 - 17)
17 17 A/F 50 - 55 (37 - 40)
19*
22 A/F 40 - 45 (29 - 33)
65 10
7
8
11
9
26
6
5 7
8
12
Main valve assembly with float
(DN15, DN20 and DN25)
Main valve assembly
(DN40 and DN50)
Capsule air vent
assembly 17
18
FT4 4 only*
2
DN15,
DN20,
DN25
17 A/F M10 x 30 19 - 22 (14 - 16)
19 22 A/F 50 - 55 (37 - 40)