18 Type Y602-12 Vent Assembly, Plastic 27A5516X012
19* Stem Guide Seal Assembly
Types 161EBM and 161EBHM
Stainless steel seal and
seal retainer with Nitrile (NBR) O-ring 10B8711X012
22 O-ring (Types 161EBM and 161EBHM) 10A0904X012
23 O-ring (Types 161EBH and 161EBHM) 10A7777X012
38 Lower Spring Seat 18B1248X012
Type 161AY or 161AYM Pilot (Figure 20)
Parts Kit (included are keys 10, 11, 12, 13, 15, 25,
30, 31, 33, 45, 48 and 49) RY690AX0012
1 Body, Cast iron 1E987119012
2 Cap Screw (2 required) 1C856228992
3 Spring Case Assembly, Ductile iron 13B0109X042
4 Lower Casing, Ductile iron
Type 161AY 17B5352X012
Type 161AYM 47B3063X012
5 Orifice, 303 Stainless steel
3/32 in. / 2.4 mm 0R044135032
1/4 in. / 6.4 mm 0B042035032
1/8 in. / 3.2 mm 1A936735032
6 Control Spring
6 to 15 in. w.c. / 15 to 37 mbar 1B653927022
0.5 to 1.2 psig / 34 to 83 mbar 1B537027052
1.2 to 2.5 psig / 83 mbar to 0.17 bar 1B537127022
2.5 to 4.5 psig / 0.17 to 0.31 bar 1B537227022
4.5 to 7 psig / 0.31 to 0.48 bar 1B537327052
7 Diaphragm Head (2 required) 17B9723X032
8 Pusher Post 27B5354X012
10 Diaphragm
Nitrile (NBR) 37B9720X012
Fluorocarbon (FKM) 23B0101X052
11 Body Seal
Nitrile (NBR) 1H993806992
Fluorocarbon (FKM) 1H9938X0012
12 Insert Seal
Nitrile (NBR) 1B885506992
Fluorocarbon (FKM) 1B8855X0012
13 Disk Assembly
Nitrile (NBR) 1C4248X0202
Fluorocarbon (FKM) 1C4248X0052
14 Stem 17B3423X012
15 Cotter Pin 1A866537022
16 Lever Assembly 1B5375000B2
17 Machine Screws (2 required) 19A7151X022
18 Guide Insert 27B4028X022
21 Hex Nut 1A354024122
22 Closing Cap
Plastic (standard) T13524T0062
Steel 1E422724092
23 Hex Nut (8 required) 1A352724122
24 Cap Screw (8 required) 1A352524052
25 Closing Cap Gasket 1P753306992
26 Vent Assembly
Spring Case Down (Type Y602-1) Type Y602X1-A1
Spring Case Up (Type Y602-11) Type Y602X1-A11
Spring Case Sideways (Type Y602-12) Type Y602X1-A12
27 Pipe Plug, Type 161AY only 1A369224492
30 Stem Seal O-ring, Type 161AYM only
Nitrile (NBR) 1H2926G0012
Fluorocarbon (FKM) 1H2926X0022
31 Throat Seal, Type 161AYM only
Nitrile (NBR) 1D682506992
Fluorocarbon (FKM) 1D6825X0012
33 Machine Screw, Type 161AYM only 18A0703X022
35 Adjusting Screw 1B537944012
37 Spring Holder 1R982025072
38 Machine Screw 10B6189X022
*Recommended Spare Part
129 Socket Head Screw, Stainless steel
For NPS 1, 1-1/4 x 1 and 2 x 1 / DN 25, 32 x 25
and 50 x 25 only 1D6170X0012
130 Lock Washer, Stainless steel
For NPS 1, 1-1/4 x 1 and 2 x 1 / DN 25, 32 x 25
and 50 x 25 only 1A329128982
131 Upper Adaptor (NPS 2 x 1 / DN 50 x 25 body only) 29B5963X012
132 Lower Adaptor (NPS 2 x 1 / DN 50 x 25 body only) 19B5964X012
133* O-ring
NPS 2 x 1 / DN 50 x 25 body only
Nitrile (NBR) 1F262906992
Fluorocarbon (FKM) 1F2629X0012
NPS 8 / DN 200 body only 1N3330X0032
136 Stud, Steel
(NPS 8 / DN 200 body only) (8 required) 11A5189X282
137 Lower Spring Seat, Stainless steel
NPS 8 / DN 200 body only GE09140X012
140 Bushing, Carbon Steel
NPS 6, 8 x 6 and 12 x 6, 8 / DN 150,
200 x 150 and 300 x 150, 200 bodies 1C379026232
143 Lifting Flange
NPS 8 / DN 200 body only 30C1724X012
144 Yoke Locknut
NPS 8 / DN 200 body only 1E832723062
161EB Series Pilots (Figure 19)
Key Description Part Number
Type 161EB Parts Kit, Nitrile (NBR)
(included are keys 4, 6, 7 and 15)
5 to 200 psig / 0.34 to 13.8 bar R161X000012
200 to 350 psig / 13.8 to 24.1 bar R161X000022
Type 161EBM Parts Kit, Nitrile (NBR)
(included are keys 4, 6, 7, 15, 17, 19 and 22)
5 to 200 psig / 0.34 to 13.8 bar R161MX00012
200 to 350 psig / 13.8 to 24.1 bar R161MX00022
Type 161EBH Parts Kit, Nitrile (NBR)
(included are keys 4, 6, 7 ,15 and 23) R161HX00012
Type 161EBHM Parts Kit, Nitrile (NBR)
(included are keys 4, 6, 7 ,15, 19, 22 and 23) R161HMX0012
1 Body Assembly, CF8M Stainless steel
Types 161EB and 161EBH 1B7971X0252
Types 161EBM and 161EBHM 30B8715X012
2 Spring Case, Stainless steel 27B9722X012
3 Body Plug, Stainless steel 1B7975X0052
4* Valve Plug,
Nitrile (NBR) with stainless steel stem 20B9389X052
Fluorocarbon (FKM) with stainless steel stem 20B9389X062
6 Plug Spring, Stainless steel 1E701337022
7* Diaphragm Assembly, Diaphragm
with Stainless steel diaphragm plate See Table 15
8 Control Spring Seat, Plated steel See Table 15
9 Control Spring, Zinc-plated steel See Table 15
10 Diaphragm Limiter, Stainless steel See Table 15
11 Adjusting Screw, Plated steel See Table 15
12 Locknut, Zinc-plated steel 1D667728982
13 Machine Screw (6 required)
Types 161EB and 161EBM, Stainless steel 1V4360T0012
Types 161EBH and 161EBHM, Plated steel T12980T0012
14 Pipe Plug
Types 161EB and 161EBH 1A767535072
15 Body Plug O-ring, Nitrile (NBR) 1F113906992
16 Closing Cap
Nylon (PA) 24B1301X012
Metal, for pressure loading
Types 161EB and 161EBM only 17B1406X012
17* Closing Cap Gasket,
Pressure loading for metal closing cap
Types 161EB and 161EBM only 1C659804022
Key Description Part NumberKey Description Part Number
29
Type EZR
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