*Recommended Spare Part
Pounds to Pounds (161EB Series Pilots)
Monitor System Mounting Parts (Figure 23)
Key Description Part Number
29 Pipe Nipple, Plated steel
NPS 1 and 1-1/4 / DN 25 and 32 bodies - - - - - - - - - - -
NPS 2 / DN 50 body - - - - - - - - - - -
NPS 3 / DN 80 body - - - - - - - - - - -
NPS 4 / DN 100 body - - - - - - - - - - -
NPS 6 / DN 150 body - - - - - - - - - - -
NPS 8 x 6 and 12 x 6 /
DN 200 x 150 and 300 x 150 bodies - - - - - - - - - - -
NPS 8 / DN 200 body - - - - - - - - - - -
38 Pipe Nipple, Plated steel - - - - - - - - - - -
Pounds to Inches (161AY/161EB Series
Pilots) Monitor System Mounting Parts
(Figure 24)
Key Description Part Number
38 Pipe Nipple, Galvanized Steel - - - - - - - - - - -
45 Bushing, Plated Steel (2 required) - - - - - - - - - - -
138 Pipe Nipple, Galvanized Steel - - - - - - - - - - -
139 Coupling, Steel - - - - - - - - - - -
140 Bushing, Plated Steel - - - - - - - - - - -
141 Pipe Nipple, Galvanized Steel - - - - - - - - - - -
Pre-piped Pilot Supply (Figure 25)
Key Description Part Number
59 Pipe Nipple, for use without Type 252 lter
NPS 1 / DN 25 body - - - - - - - - - - -
NPS 2, 3 and 4 / DN 50, 80 and 100 bodies - - - - - - - - - - -
NPS 6, 8 x 6 and 12 x 6 /
DN 150, 200 x 150 and 300 x 150 bodies - - - - - - - - - - -
60 Elbow, for use without Type 252 lter - - - - - - - - - - -
61 Tubing Connector, for use without
Type 252 filter (1 required with Type 252,
2 required without Type 252)
Steel - - - - - - - - - - -
Stainless Steel - - - - - - - - - - -
62 Tubing, Stainless steel - - - - - - - - - - -
68 External Elbow, for use with Type 252 lter
Steel - - - - - - - - - - -
Stainless Steel - - - - - - - - - - -
81 Nipple, for mounting Type 252 lter
NPS 1, 2, 3 and 4 /
DN 25, 50, 80 and 100 bodies - - - - - - - - - - -
NPS 6, 8 x 6 and 12 x 6 /
DN 150, 200 x 150 and 300 x 150 bodies - - - - - - - - - - -
NPS 8 / DN 200 body - - - - - - - - - - -
PRX Series Pilots (Figure 26)
Key Description Part Number
Parts Kits
Elastomer Parts Kits (includes keys: 4, 5, 14, 17,
18, 25 and 28)
Nitrile (NBR) RPRX00X0N12
Fluorocarbon (FKM) RPRX00X0F12
Full Parts Kits (includes keys: 4, 5, 14, 17, 18,
22, 25 and 28)
Nitrile (NBR) RPRX00X0N22
Fluorocarbon (FKM) RPRX00X0N22
1 Adjusting Screw M0253340X12
2 Locknut M5036008X12
3 Cap M0253350X12
4* Upper Cover O-ring See Parts Kits
5* O-ring See Parts Kits
6 Upper Spring Seat M0253360X12
7 Spring See Table 2
8 Upper Cover M0298540X12
9 Lower Spring Seat M0253380X12
10 Machine Screw M5011018X12
11 Washer (14 required) M5055001X12
12 Filter M4500367X12
13 Upper Diaphragm Plate (2 required) M0253390X12
14* Diaphragm See Parts Kits
15 Lower Diaphragm Plate M0253410X12
16 Body M0253310X12
17* Orice O-ring See Parts Kits
18* Lower Cover O-ring See Parts Kits
19 Orice M0253440X12
20 Nut M5002004X12
21 Lower Cover M0298600X12
22* Pad Holder
Polyurethane (PU) ERAA1220A0
Fluorocarbon (FKM) M0279950X12
23 Stem M0253430X12
24 Nameplate - - - - - - - - - - -
25* Stem O-ring See Parts Kits
26 Upper Diaphragm Nut M5028005X12
27 Damper Adjusting Screw with Hole M0253480X12
28* Restrictor/Damper O-ring See Parts Kits
29 Plate GD25440X012
29 Damper/Restrictor Plate
Types PRX/120 and PRX/120-AP M0254400X12
Types PRX/125 and PRX/125-AP M0257930X12
30 Ring Nut (2 required) M0253490X12
31 Nameplate Screw M5061001X12
32 Restrictor Adjusting Screw with Hole M0253480X12
33 Plug (Types PRX/125 and PRX/125-AP Only) M0257920X12
34 Plug (Types PRX/125 and PRX/125-AP Only) M4500328X12
35 Spring barrel Extension for AP M0274100X12
31
Type EZR