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11. Inspect the orifice (key 4) of the regulator by
unscrewing the inlet adaptor (key 3) and
removing it from the coupling. Unscrew the
orifice. Check O-ring (key 23) also.
Reassembly
Coat external threads with a good grade of pipe
compound when reassembling the regulator.
1. Place the O-ring on the inlet adaptor and screw
in the orifice.
2. Reassemble the pusher post, baffle and lever
unit. Put the unit into the body and connect the
lever to the stem. Place an O-ring on the lever
pin and screw it into the body and through
the lever.
3. Set the diaphragms on the pusher post. The
composition diaphragm goes on first, with the
metal diaphragm placed over it. (In Type 1305D
regulators, both diaphragms are metal).
4. Set the diaphragm head over the diaphragms
and screw the hex nut onto the pusher post.
5. Put the spring and upper spring seat onto the
diaphragm head. Set the spring case on the
body. Insert the machine screws, tightening
them finger-tight only.
6. Screw the disk holder into the stem.
7. Slide the regulator into the inlet adaptor and
tighten the union nut.
8. To ensure proper slack in the diaphragm,
apply spring compression by turning the
adjusting screw clockwise. Finish tightening the
machine screws.
9. Connect the inlet and outlet piping to the
body connections.
Parts Ordering
When corresponding with your local Sales Office
about this equipment, be sure to include the type
number and other information stamped on
the nameplate.
When ordering replacement parts, reference the
key number of each needed part as found in the
following parts list.
*Recommended Spare Parts
Inconel
is a mark owned by Special Metals Corporation.
®
Parts List
In this parts list, parts marked naCE are
intended for corrosion-resistant service
as detailed in the naCE International
standard MR0175.
key
Description
1
Lower Casing, Brass (standard or NACE)
2
Spring Case, Brass
Type 1305C
Type 1305D (standard or NACE)
3
Inlet Adaptor
416 Stainless steel
316 Stainless steel (NACE)
4*
Orifice
416 Stainless steel
316 Stainless steel (NACE)
5*
Valve Disk Assembly
Stainless steel/Nylon (PA)
Stainless steel/Nylon (PA) (NACE)
6
Valve Stem
416 Stainless steel
316 Stainless steel (NACE)
7*
O-ring, Nitrile (NBR) (standard or NACE)
8
Union Nut, 416 Stainless steel
(standard or NACE)
9
Split Ring, 416 Stainless steel
(standard or NACE)
10
Valve Lever Assembly
Steel/303 Stainless steel
Steel (NACE)
10A Valve Lever
Steel
Steel, Zinc-plated steel (NACE)
10B Valve Lever Pin
303 Stainless steel
316 Stainless steel (NACE)
11
Pusher Post Assembly
Brass/steel
Stainless steel/Inconel
®
11A Pusher Post, Brass (standard or NACE)
11B Roll Pin
Carbon steel
Inconel
X750 (NACE)
®
12
Lever Support Pin
416 Stainless steel
316 Stainless steel (NACE)
13* O-ring, Nitrile (NBR) (not shown),
(standard or NACE)
14* Diaphragm (1 of each required for Type 1305C)
Type 1305C
Neoprene (CR)
302 Stainless steel
Diaphragm
Type 1305D (standard or NACE)
302 Stainless steel (2 required)
Neoprene (CR) (1 required)
15
Diaphragm Head, Steel
Type 1305C
Type 1305D (standard or NACE)
16
Hex Nut, Steel (standard or NACE)
1305 Series
note
Part number
2R139212012
1D383113012
2P195713022
1D900235132
1D9002X0012
1D900335132
1D9003X0012
1F1005000A2
1F1005X0012
1F108835132
1F1088X0012
1D237506992
1D900535132
1D900635132
1R1394000A2
1R1394X0012
1R139332992
1R1393X0012
1D900835032
1D9008X0012
1R1397000A2
(NACE)
1R1397X0012
1R139514012
1R139628992
1R1396X0012
1F100835132
1F1008X0012
1D687506992
1D900702112
1D387036012
1D387036012
1D900702112
1D387325072
1K155725072
1A309324122
5
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