IM-IBR17-49IN
Issue 1
23
Unscrew element assembly
-
Remove the cover nuts (
2
) and cover.
-
Undo the 4 main valve assembly nuts (
7
).
-
Remove the main valve assembly (
5
) and gasket (
6
).
-
Ensure gasket faces are clean and dry.
-
Fit new gasket (
6
) and main valve assembly (
5
).
-
Tighten nuts (
7
) evenly (see Table 2 for the recommended tightening torques).
-
Re-use or replace the ball float (
8
) as required.
-
Replace cover gasket (
3
) ensuring the gasket face has been cleaned.
-
Replace the cover, ensuring the dowel is located correctly.
-
Retighten the cover nuts (
2
) evenly (see Table 2 for the recommended tightening torques).
How to fit the capsule air vent assembly:
-
Remove the spring clip, capsule, spacer plate, unscrew the seat and remove the frame
(
17
) and gasket (
18
).
-
Ensure the gasket faces are clean and dry.
-
Fit the new gasket (
18
), frame and seat (
17
) and tighten evenly (see Table 2 for the
recommended tightening torques).
-
Assemble new spacer plate, capsule and clip.
How to fit the bimetallic air vent assembly for DN15 to DN100:
-
Unscrew and remove the element assembly (
17
) and gasket (
18
).
-
Ensure the gasket faces are clean and dry.
-
Fit the new gasket (
18
) and element assembly (
17
) and tighten evenly to the recommended
torque (see Table 2).
Table 2 Recommended tightening torques
Item No.
or
mm
N m
(lbf ft)
2
24 A/F
M16 x 45
80 - 88
(58 - 65)
7
13 A/F
M8 x 20
20 - 24
(15 - 17)
17
17 A/F
50 - 55
(37 - 40)
Summary of Contents for FT 43 Series
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