Emerson Fisher 122A Series, Instruction Manual

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Type 122A
6
Parts List
Key Description Part Number
1 Spring Case,
Aluminum 2P901508012
2 Lower Diaphragm Case,
Cast iron 2L918419012
3 Spring See Table 1
4 Hex Nut, Plated steel
(12 required) 1A3915X0022
5* Stem, 316 Stainless steel 1R177435162
6 Spring Guide,
Plated steel 1D666625072
7 Adjusting Screw,
Plated steel 1D995448702
8 Diaphragm Plate,
Plated steel 1D666428982
9* Diaphragm,
Neoprene (CR) 1D666302102
10 Washer, Plated steel 1D716228982
12* O-ring, Nitrile (NBR)
(3 required) 1E472706992
13* Back-up Ring, Leather
(5 required) 14B0155X012
14 Retaining Washer, Stainless steel
(2 required) 1K786935022
15* Guide Bushing, Iron
(2 required) 1K787021052
16 Self-Tapping Screw, Plated steel
(4 required) 1J336928982
17 Washer, Stainless steel 1K787135022
18* Washer, Neoprene (CR)/Felt
(3 required) 1K787206992
19 Union Nut,
Ductile iron 1E471119062
*Recommended spare parts
20 Snap Ring, Plated steel 1A832648722
21 Body Gasket,
Composition 1A832504032
22* Disk Holder Assembly
Aluminum/Nitrile (NBR) 1R1772000A2
Stainless steel/Nitrile (NBR) 1R1772X00A2
Stainless steel/Fluorocarbon (FKM) 1R1772X0032
23 Body, Cast iron
3/4 NPT 1D3124X0022
1 NPT 1D3125X0022
WCC Steel
3/4 NPT 1E162622012
1 NPT 1K886222012
24* Upper Valve Seat
Aluminum 1B810309012
Stainless steel 1B8103X0012
25 Name Plate - - - - - - - - - - -
26 Cap Screw, Plated steel
(8 required) 1B720924052
28 Drive Screw, Plated steel
(4 required) 1E501728982
29 Vent Assembly EMY602X1-A12
30 Locknut, Zinc-plated steel 1D667728982
31 Upper Spring Seat, Plated steel 1D667125072
36 Bottom Flange, Plated steel 1R177524092
37* Lower Valve Seat
Aluminum 1R177309012
Stainless steel 1R1773X00A2
WCC Steel
3/4 NPT 1E162622012
1 NPT 1K886222012
Key Description Part Number