9
4" Models
Illustration Part
Number
Description
Number
22
Lower Diaphragm Plate
091-00-022-01
22a
O-Ring, 5/8" x 3/4"
902922
23
O-Ring, 11/16" x 7/8"
934013
24
Diaphragm Connecting Screw,
090-16-058-00
stainless steel
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),
904084
4" x 4-1/4"
37
Centerpiece Stem Bushing
090-16-373-00
37a
Aluminum Seal Ring
090-26-178-00
39
Tetraseal (or O-Ring),
904083
4-1/4" x 4-1/2"
2" and 3" Models
Illustration Part
Number
Description
Number
Valve Assembly, 1-3/4",
brass trim, Polyurethane
090-16-515-32
(Red, 65-75 Duro)
Valve Assembly, 1-3/4",
stainless steel trim,
090-16-515-52
50
Polyurethane (Red, 65-75 Duro)
Valve Assembly, 1-1/2",
brass trim, Polyurethane
090-16-515-33
(Red, 65-75 Duro)
Valve Assembly, 1-1/2"
stainless steel trim,
090-16-515-53
Polyurethane (Red, 65-75 Duro)
6" Models
Illustration Part
Number
Description
Number
22
Lower Diaphragm Plate
091-00-022-02
22a
O-Ring, 5/8" x 3/4"
902922
23
O-Ring, 11/16" x 7/8"
934013
24
Diaphragm Connecting Stem,
090-22-058-00
stainless steel
26
Hex Cap Screw, 3/8" – 16 x 1" Lg.,
910055
120,000 tensile
27
O-Ring for Orifice
906301
4-1/4 Inlet Orifice, plated steel
090-24-028-00
4-1/4" Inlet Orifice, stainless steel
090-24-028-02
28
3" Inlet Orifice, plated steel
090-24-028-10
3" Inlet Orifice, stainless steel
090-24-028-12
2-1/8" Inlet Orifice, plated steel
090-24-028-22
2-1/8" Inlet Orifice, stainless steel
090-24-028-24
4-1/4" Outlet Orifice, plated steel
090-24-029-00
4-14" Outlet Orifice, stainless steel
090-24-029-02
29
3" Outlet Orifice, plated steel
090-24-029-10
3" Outlet Orifice, stainless steel
090-24-029-12
2-1/8" Outlet Orifice, plated steel
090-24-029-22
2-1/8" Outlet Orifice, stainless steel
090-24-029-24
30
Hex Cap Screw, 3/8" –16 x 1" Lg.
910055
31
Spin Stop Plate
090-24-040-01
32
Guide Bushing, stainless steel
090-24-074-01
34
Hex Cap Screw, 5/8" – 11 x 2"
910159
35
Tetraseal (or O-Ring), 7-3/4" x 8"
904088
36
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), 6" x 6-1/4"
904089
Installation and Maintenance Instructions
Model 441-57S Regulator
