Type 310A
14
CAuTIOn
Overtightening the cap screws in
step 12 can damage the diaphragm. Do
not exceed the torque value listed in
Table 4 when tightening the cap screws.
12. Alternately tighten the cap screws on opposite
sides of the unit to evenly compress the gasket.
Follow this sequence several times until the cap
screws will not turn at the maximum torque given
in Table 4. If this procedure is properly followed,
the gap between the two body halves will be
uniform all the way around.
13. Connect the external supply line to the pilot.
Parts Ordering
Each Type 310A regulator is assigned a serial number,
which can be found on the nameplate. Refer to the
number when contacting your local Sales Office for
technical information or when ordering parts.
When ordering replacement parts, reference the key
number of each needed part as found in the following
parts list. Separate kit containing all recommended
spare parts is available.
Table 4.
Maximum Cap Screw (key 14) Torque Values
BODY SIZE,
nPS (Dn)
MAXIMuM TORquE VALuE,
FOOT-POunDS (n•m)
1 (25)
2 (50)
3 (80)
4 and 4 x 6 (100 and 100 x 150)
55
105
125
500
(75)
(142)
(170)
(678)
Parts List
Type 32A Pilot (Figure 9)
Key Description
Part number
Repair Kits (Include keys 7, 9, 13, 14, 15, 18, 25,
26, 28, 30, and 34)
With Fluorocarbon (FKM) disk, Nitrile (NBR)
diaphragm, disk and O-rings
R32AX000012
With Fluorocarbon (FKM) disk, diaphragm,
and O-rings
R32AX000022
1
Spring Case, Steel
2R742222012
2
Spring Case Cap, Zinc-plated steel
11A8122X012
3
Adjusting Screw,
Standard mounting, Zinc-plated steel
1D995448702
Type 662 Kixcel mounting, Steel
18B3500X062
4
Locknut, Zinc-plated steel
1H483324122
5
Spring Seat, Steel (2 required)
1R742524092
6
Cap Screw, Zinc-plated steel (4 required)
1B139324052
7* Gasket, Composition
1R742604022
8
Diaphragm Plate, Zinc-plated steel (2 required)
1R742724152
Key Description
Part number
9* Diaphragm (2 required)
Nitrile (NBR)
1R742806992
Fluorocarbon (FKM)
1U448302462
10 Cap Nut, Stainless steel
1D651538992
11 Diaphragm Spacer
Steel
(standard)
2R742924092
Steel (NACE)
2R7429X0052
12 Orifice Assembly
416 Stainless steel
(standard)
1R7430000A2
316 Stainless steel (NACE)
1R7430X0022
13*
O-ring
Nitrile (NBR)
(standard)
1D687506992
Fluorocarbon (FKM)
1N430406382
14*
O-ring (2 required)
Nitrile (NBR)
(standard)
1E216306992
Fluorocarbon (FKM)
1L949306382
15* Washer, Plated steel with
bonded synthetic rubber (2 required)
1J186999012
16 Yoke
410/416 Stainless steel
(standard)
1R743335132
316 Stainless steel (NACE)
1R7433X0012
17 Adaptor
410/416 Stainless steel
(standard)
1R743435132
316 Stainless steel (NACE)
1R7434X0012
18* Valve Disk Assembly
416 Stainless steel/Fluorocarbon (FKM)
10A4912X012
Stainless steel with PTFE disk
12A3962X012
316 Stainless steel/Fluorocarbon (FKM) (NACE) 10A4912X082
19 Bleed Orifice, 316 Stainless steel
1R743835162
20 Bleed Valve
416 Stainless steel
(standard)
1D986735132
316 Stainless steel (NACE)
1D9867X0012
21 Nut, Zinc-plated steel
1A309324122
22 Pilot Body, Steel
34B3863X012
23 Piston Guide
410/416 Stainless steel
(standard)
34B3880X012
316 Stainless steel (NACE)
34B3880X022
25* O-Ring
Nitrile (NBR)
(standard)
1U379006992
Fluorocarbon (FKM)
1V101506382
26* O-Ring
Nitrile (NBR)
(standard)
1F463606992
Fluorocarbon (FKM)
1N571406382
27 Retaining Ring, Carbon-plated steel
1R744228982
28* Piston Seat Assembly
416 Stainless steel/Nylon (PA)
(standard)
14B3881X012
316 Stainless steel/Nylon (PA) (NACE)
14B3881X022
29 Piston
416 Stainless steel
(standard)
1R744535232
316 Stainless steel (NACE)
1R7445X0012
30* O-Ring
Nitrile (NBR)
(standard)
1E218106992
Fluorocarbon (FKM)/PTFE
1N530106382
33 Bushing
303 Stainless steel
(standard)
1F262035032
316 Stainless steel (NACE)
1F2620X0012
34*
O-Ring
Nitrile (NBR)
(standard)
1D191706992
Fluorocarbon (FKM)/PTFE
1N423906382
35 Spring
302 Stainless steel
(standard)
1R744637022
Nickel-Based alloy (NACE)
12B7884X012
36 Spring
302 Stainless steel
1U550637022
Nickel-Based alloy (NACE)
12B7883X012
37 Control Spring, Zinc-plated steel
10 to 20 psig (0,69 to 1,4 bar), Silver
1D809627022
10 to 100 psig (0,69 to 6,9 bar), Yellow
1E392527022
100 to 250 psig (6,9 to 17,2 bar), Blue
1D387227022
250 to 600 psig (17,2 to 41,4 bar), Red
1D465127142
400 to 700 psig (27,6 to 48,3 bar), Green
13A5543X012
*Recommended Spare Part
