*Recommended Spare Part
Parts List
161 and 161EB Series Pilots
(Figures 4 through 6)
Type 161 Pilot Parts Kit (included
are keys 4, 6, 7 and 15)
For 5 to 15 or 10 to 125 psig / 0.34 to 1.03 or
0.69 to 8.62 bar control spring range
R161X000012
For 120 to 300 psig / 8.27 to 20.7 bar
control spring range
R161X000022
Type 161 Pilot Parts Kit (included
are keys 4, 6, 7, 15 and 17)
For pressure loading with 5 to 15 or
10 to 125 psig / 0.34 to 1.03 or
0.69 to 8.62 bar control spring range
R161X000032
Type 161M Pilot Parts Kit (included
are keys 4, 6, 7, 15, 17, 19 and 22)
For 5 to 15 or 10 to 125 psig / 0.34 to 1.03 or
0.69 to 8.62 bar control spring range
R161MX00012
For 120 to 300 psig / 8.27 to 20.7 bar
control spring range
R161MX00022
For pressure loading with 5 to 15 or
10 to 125 psig / 0.34 to 1.03 or
0.69 to 8.62 bar control spring range
R161MX00032
Parts Kit, (included are keys 4, 6, 7 and 15)
Type 161EB, Nitrile (NBR)
5 to 200 psig / 0.34 to 13.8 bar
R161X000012
200 to 350 psig / 13.8 to 24.1 bar
R161X000022
Type 161EBM, Nitrile (NBR)
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
Types 161,161EB and 161EBH
Stainless steel
1B7971X0252
Aluminum (Type 161 only)
1B7971X0292
Types 161M,161EBM and 161EBHM
Stainless steel
30B8715X012
2
Spring Case
Types 161 and 161M
Aluminum (Type 161 only)
25A6220X012
Stainless steel
28A9277X012
161EB Series, Stainless steel
27B9722X012
3
Body Plug
Aluminum (Type 161 only)
1B797509032
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 4 or 5
8
Upper Spring Seat, Plated steel
See Table 4 or 5
9
Control Spring
See Table 4 or 5
10
Diaphragm Limiter, Stainless steel
See Table 4 or 5
11
Adjusting Screw, Plated Steel
See Table 4 or 5
12 Locknut
For Types 161 and 161M, Stainless steel
1A9463X0042
For 161EB Series, Carbon Steel
1D667728982
13
Machine Screw, (6 required)
Types 161 and 161M, Stainless steel steel
For 5 to 300 psi / 0.34 to 20.7 bar
1V4360X0022
For 250 to 600 psi / 17.2 to 41.4 bar
T12980T0012
Key Description
Part Number
Key Description
Part Number
13
Machine Screw, (6 required) (continued)
Type 161, Aluminum spring case
10B6189X022
Types 161EB and 161EBM, Stainless steel
1V4360T0012
Types 161EBH and 161EBHM, Plated steel
T12980T0012
14
Pipe Plug
For Aluminum body, (Type 161 only), Plated steel 1A767524662
For Stainless steel body, Stainless steel
Types 161, 161EB and 161EBH
1A767535072
15
Body Plug O-ring, Nitrile (NBR)
1F113906992
16
Closing Cap
Nylon (PA)
Types 161 and 161M
23B9152X012
161EB Series
24B1301X012
Metal for pressure loading
Types 161 and 161M
1H2369X0012
Types 161EB and 161EBM
17B1406X012
17* Closing Cap Gasket, Pressure loading
for metal closing cap only, Composition
Types 161 and 161M
15A6218X012
Types 161EB and 161EBM
1C659804022
18
Type Y602-12 Vent Assembly, Plastic
27A5516X012
19* Stem Guide Seal Assembly
(Types 161M, 161EBM and 161EBHM)
Stainless steel seal and
seal retainer with Nitrile (NBR) rubber O-ring
10B8711X012
22
O-ring (Types 161M, 161EBM and 161EBHM),
Nitrile (NBR)
10A0904X012
23
O-ring (Types 161, 161M and 161EBHM),
Nitrile (NBR)
10A7777X012
26
Gauge (Type 161EB), Stainless steel
11B9639X032
38
Lower Spring Seat, (Types 161EB and 161EBM)
Plastic 18B1248X012
Types 161AY, 161AYM and 161AYW
Pilots (Figure 7)
Key Description
Part Number
Parts Kit (included are keys 10, 11, 12, 13, 15,
30, 31, 33, 48 and 49)
RY690AX0012
1
Body, Cast iron
1E987119012
2
Cap Screw, Zinc-plated steel (2 required)
1C856228992
3
Spring Case Assembly, Ductile iron
13B0109X042
4
Lower Casing, Ductile iron
Type 161AY
17B5352X012
Types 161AYM and 161AYW
47B3063X012
5
Orifice, Stainless steel
3/32 in. / 2.4 mm
0R044135032
1/4 in. / 6.3 mm
0B042035032
1/8 in. / 3.2 mm
1A936735032
6
Control Spring, Steel
See Table 1
7
Diaphragm Head, Stainless steel (2 required)
17B9723X032
8
Pusher Post, Stainless steel
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
Types 161AY and 161AYM
Nitrile (NBR)
1C4248X0202
Fluorocarbon (FKM)
1C4248X0052
Type 161AYW
Nitrile (NBR)
14A0632X012
8
161 Series