FL Series
11
4. Clean screens (key 8). Replace filter pad (key 12).
5. Inspect diaphragm (key 18) for damage or wear,
and replace if necessary. Check the seating surface of
the (key 17) for erosion, scratches, spurs, or other
damage, and replace if necessary.
6. Unscrew and remove (key 5). Inspect O-ring
(key 6) for damage or wear, and replace if necessary.
Lightly lubricate the O-ring and place it on (key 5).
7. Pull (key 15) out of the body (key 16). Inspect the
seat for damage, and replace if necessary.
8. Set the (key 15) on the spring (key 14) and insert
the (key 5). Tighten the (key 5) until it stops.
9. Lightly lubricate the outer and inner rims of the
diaphragm (key 18). Place the diaphragm assembly on
top of the (key 5). The (key 17) will slide into (key 5).
Use care to avoid damage to parts when reassembling.
10. Set the spring (key 1) on top of the (key 21).
11. Align the (key 19) over the body (key 16) with the
sense port (V) opposite the pilot supply port (R).
12. Place the filter pad (key 12) and screens (key 8),
one on each side of the filter pad, on the (key 11).
13. Pick up the body (key 16) and place it on the
(key 11) with the inlet port (M) aligned vertically with the
sense port (V).
14. Insert bolts (key 2). Place washers (key 9) and
nuts (key 10) on the end of the bolts. Tighten the nuts.
Parts Ordering
Refer to the Type number when contacting your Fisher
Sales Office or Sales Representative for technical
information. When ordering parts, also be sure to
include the complete 11-character part kit number.
Parts List
FL Main Valve (figure 4)
Key
Description
Part Kit (includes key number: 2, 3, 4, 10, 18,
20, 26, 28, 35, 38, 46, and 47)
See Table
1
Inlet Flange
2*
Anti-Friction Ring
3*
O-Ring
4*
Body O-Ring
5
Screw
6
Spring
7
Fitting
8
Inlet Plate
9
Screw
10*
Diaphragm
11
Inlet Cover
12
Outlet Plate
13
Outlet Cover
14
Washer
15
Nut
16
Sleeve
17
Fitting
18*
O-Ring
19
Pad Holder
20*
Pad
21
Pad Retainer
22
Outlet Flange
23
Gasket
24
Disassembly Spacer
25
Screw
26*
O-Ring
27
Screw
28*
O-Ring
29
Metal Plate
30
Nameplate Sticker
31
Drive Screw
32
Flow Arrow
33
Spring Collet
34
Indicator
35*
O-Ring
36
Support
37
Indicator Bushing
38*
O-Ring
39
Indicator Label
40
Indicator Cover
43
SR Silencer
46*
O-Ring
47*
O-Ring
48
Washer
* Indicates Recommended Spare.
1 (DN 25)
1-1/2 (DN 40)
2 (DN 25)
2-1/2 (DN 65)
3 (DN 80)
4 (DN 100)
6 (DN 150)
8 (DN 200)
NITRILE
GD89984X012
GD89977X012
GD89985X012
GD89975X012
GD89986X012
GD89987X012
GD89988X012
~
VITON
GD89984X022
GD89977X022
GD89985X022
GD89975X022
GD89986X022
GD89987X022
GD89988X022
~
NITRILE SR-SRS GD89973X012
GD89976X012
GD89972X012
GD89974X012
GD89971X012
GD89970X012
GD89969X012
~
VITON SR-SRS
GD89973X022
GD89976X022
GD89972X022
GD89974X022
GD89971X022
GD89970X022
GD89969X022
~
S IZ E , IN C H E S ( D N )
M A T E R IA L
~ CALL FOR KIT NUM B ER
FL Series Parts Kit Part Numbers
