23
24
25
34
4
5
6
7
8
9
45
43
42
41
40
35
1
1
a
36
37
60
34
37a
i
a
b
c
d
e
50
f
g
a
b
c
52
j
b
b
10
11
12
13
14
15
16
17
18
19
20
21
22
26
27
28
29
27
26
30
31
30
35
32
38
39
36a
Molded Valve, 3", Buna-N
090-22-315-00
(Black, 50-55 Duro) all trim
Molded Valve, 2-1/8", Buna-N
090-22-315-01
(Black, 50-55 Duro) all trim
Molded Valve, 1-3/4", Buna-N
090-22-315-04
50d
(Black, 50-55 Duro) all trim
Molded Valve, 3", Polyurethane
090-22-315-02
(Red, 65-75 Duro) all trim
Molded Valve, 2-1/8", Polyurethane
(Red, 65-75 Duro) all trim
090-22-315-03
Molded Valve, 1-3/4", Polyurethane
090-22-315-05
(Red, 65-75 Duro) all trim
50e
Female Valve Stem, brass
090-22-016-40
Female Valve Stem, stainless steel
090-22-016-41
50f
Adjustment Clamp Ring,
090-22-043-02
stainless steel
50g
Adjustment Clamp Screw, Soc. Hd.
903494
Screw, 1/4" – 20 x 3/4" Lg.
50h
Male Valve Stem, stainless steel
090-22-116-01
Stem Extension, stainless,
090-22-058-40
50i
for 20" diaphragm only
Stem Extension, stainless,
090-22-058-41
for 18" and smaller diaphragms
Travel Stop, for 3" valves
090-22-040-51
52
Travel Stop, for 2-1/8" and
090-22-040-55
1-3/4" valves
4" Model 441-S (continued)
Illustration Part
Number
Description
Number
7
Installation and Maintenance Instructions
Model 441-S Regulator
4" Model 441-S
Illustration Part
Number
Description
Number
26
Hex Cap Screw, 3/8"–16 x 3/4" Lg.,
910053
120,000 tensile
27
O-Ring, for orifices
905583
3" Inlet Orifice, plated steel
090-22-028-00
3" Inlet Orifice, stainless steel
090-22-028-50
28
2-1/8" Inlet Orifice, plated steel
090-22-028-02
2-1/8" Inlet Orifice, stainless steel
090-22-028-52
1-3/4" Inlet Orifice, plated steel
090-22-028-01
1-3/4" Inlet Orifice, stainless steel
090-22-028-51
3" Outlet Orifice, plated steel
090-22-029-00
3" Outlet Orifice, stainless steel
090-22-029-50
29
2-1/8" Outlet Orifice, plated steel
090-22-029-02
2-1/8" Outlet Orifice, stainless steel
090-22-029-52
1-3/4" Outlet Orifice, plated steel
090-22-029-01
1-3/4" Outlet Orifice, stainless steel
090-22-029-51
30
Hex Cap Screw, 3/8" – 16 x 1" Lg.
910055
31
Spin Stop Plate
090-22-040-01
32
Guide Bushing, brass
090-22-074-00
Guide Bushing, stainless steel
090-22-074-01
Hex Cap Screw, 5/8" – 11 x 1-1/2"
910157
34
Hex Cap Screw, 5/8" – 11 x 1-3/4"
910158
for ductile bottom plate
35
Tetraseal (or O-Ring),
904080
6-1/4" x 6-1/2"
36a
Tetraseal (or O-Ring), 4" x 4-1/4"
904084
37
Centerpiece Stem Bushing
090-16-373-02
37a
Aluminum Seal Ring
090-26-178-00
39
Tetraseal (or O-Ring),
904083
4-1/4" x 4-1/2"
Valve Assembly, 3", brass trim,
090-22-515-30
Buna-N (Black, 50-55 Duro)
50
Valve Assembly, 3", stainless steel,
090-22-515-50
trim, Buna-N (Black, 50-55 Duro)
Note: For other Valve Assemblies see RP 1350
50a
Valve Retaining Nut, 3/4" – 16
090-22-034-00
Valve Retainer, standard, iron, 3"
090-22-018-03
Valve Retainer, standard, stainless
090-22-018-00
steel, 3"
Valve Retainer, v-port wings,
090-22-012-20
iron, 3"
Valve Retainer, v-port wings,
090-22-012-40
stainless steel, 3"
Valve Retainer, standard,
090-22-018-01
50b
iron, 2-1/8"
Valve Retainer, standard, stainless
090-22-018-31
steel, 2-1/8"
Valve Retainer, v-port wings,
stainless steel, 2-1/8"
090-22-012-51
Valve Retainer, standard, stainless
090-22-018-34
steel, 1-3/4"
50c
O-Ring, 13/16" x 1"
904173
Description
4" Model 441-S
