Type 99
21
Pilot and Tubing Parts
(2)
Low or
High-Pressure Pilot (Figures 8, 10, 11, 12,
13, 14 and 15)
Key Description Part Number
23 Elbow (2 required) - - - - - - - - - - -
24 Pilot Supply Tubing, disk or O-ring main valve seat - - - - - - - - - - -
30* Upper Relay Diaphragm
Nitrile (NBR) 1B885202052
Fluorocarbon (FKM) 1N162802332
31 Upper Relay Diaphragm Plate, Plated steel
For use with all low-pressure pilots
except Type 61LE 1B989325072
For use with all high-pressure pilots and
Type 61LE low-pressure pilot 1D558425072
33* O-ring Seal
Nitrile (NBR) 1B885506992
Fluorocarbon (FKM) 1B8855X0012
34 Connector - - - - - - - - - - -
37 Yoke
Zinc 1D662544012
38 Relay Orice, Stainless steel
For use with 25 psi / 1.7 bar maximum allowable
pressure drop actuator main spring 1D373735032
For use with all other main springs 1C520135032
39 Relay Valve Body, Cast iron 2J581919012
40* Lower Relay Diaphragm
Low-pressure pilot
Nitrile (NBR) 1B886002052
Fluorocarbon (FKM) 1N536102332
High-pressure pilot
Neoprene (CR) 1B894202192
Fluorocarbon (FKM) (2 required) 1N162702302
41 Lower Relay Diaphragm Plate, Plated steel
Low-pressure pilot 1B989425072
High-pressure pilot 1D558325072
42 Spring Seat, Plated steel
Low-pressure pilot 1B886225072
High-pressure pilot 1D558525072
43 Control Spring, Plated steel
For use only with Type 61LD low-pressure pilot
2 to 4 in. w.c. / 5 to 10 mbar, Orange 1B558527052
3 to 12 in. w.c. / 7 to 30 mbar, Unpainted 1C680627222
For use with all low-pressure pilots
0.25 to 2 psig / 0.02 to 0.14 bar, Red 1B886327022
1 to 5 psig / 0.07 to 0.35 bar, Yellow 1J857827022
2 to 10 psig / 0.14 to 0.69 bar, Blue 1B886427022
5 to 15 psig / 0.35 to 1.0 bar, Brown 1J857927142
10 to 20 psig / 0.69 to 1.4 bar, Green 1B886527022
For use with high-pressure pilot
10 to 65 psig / 0.69 to 4.5 bar, Green stripe 0Y066427022
44 Spring Case, Cast iron
Low-pressure pilot 1B983919012
High-pressure pilot
Standard 1B984119012
For use with closing cap (not shown) 1H232619012
45 Adjusting Screw
Low-pressure pilot
Standard, Zinc 1B537944012
Handwheel-style, Plated steel 1J496428982
O-ring sealed handwheel assembly, Brass 1R759414012
Brass Cap with external sealed adjusting screw,
Plated steel 1D995448702
High-pressure pilot
Standard, Plated steel 1A279128982
For use with closing cap, 1H236514012
Plated steel 1J881524102
Type 662 18B3500X022
Key Description Part Number
46 Closing Cap
Low-pressure pilot
For use with standard low-pressure pilot, Plastic T11069X0012
For use with standard low-pressure pilot, Steel 1E422724092
For use with handwheel-style
low-pressure pilot, Brass (not shown) 1A926114012
For use with O-ring sealed handwheel, Brass 1R759314012
High-pressure pilot
For use with high-pressure pilot with spring
case 1H232619012, Brass (not shown) 1H236514012
47 Cap Screw, Plated steel (8 required) 1B989624052
48* Relay Disk Assembly
Brass/Nitrile (NBR) 1B8868000A2
303 Stainless steel/Nitrile (NBR) 1B8868000B2
Brass/Fluorocarbon (FKM) 1B8868X0012
303 Stainless steel/Fluorocarbon (FKM) 1B8868X0022
49 Bleed Valve Spring, Stainless steel
For use with low-pressure pilot with relay orice
1D373735032 or bleed valve 1H951635132 1E643637022
For use with all low and high-pressure pilots
Inlet pressure up to 250 psig / 17.2 bar 1C911537022
Inlet pressure over 250 psig / 17.2 bar 1N859137022
50 Bleed Valve, Stainless steel
For use with Type 61LD low-pressure pilot
with bleed valve spring 1E643637022 1H951635132
For use with all low and high-pressure pilots 1D986735132
51 Diaphragm Nut
Brass 1B989514012
316 Stainless steel 1B989535072
52* Bleed Orice, 316 Stainless steel 1B887335032
53 Loading Tubing - - - - - - - - - - -
54 Connector - - - - - - - - - - -
55 Pipe Nipple (1 required for 90º orientation
and 2 required with SST tubing) - - - - - - - - - - -
59 Pipe plug, Steel (not shown) - - - - - - - - - - -
60 Type Y602-12 Vent Assembly
(low-pressure pilot only) 27A5516X012
68 Spring Seat
Handwheel-style low-pressure pilot,
Zinc-plated steel, (not shown) 1J618124092
High-pressure pilot, Zinc-plated steel 16A9812X012
69 Pilot Nameplate - - - - - - - - - - -
71* Closing Cap Gasket
(for use only with low-pressure pilot),
Neoprene (CR) 1P753306992
72 Type Y602-1 Vent Assembly (for use only with
standard high-pressure pilot spring case) 17A6570X012
78 Handwheel
(for use only with handwheel-style
low-pressure pilot), Zinc 1J496144012
79 Machine Screw (for use only with handwheel-style
low-pressure pilot), Plated steel 16A5763X012
80 Lockwasher
For use only with handwheel-style
low-pressure pilot, Steel 1A352332992
For use with Brass cap with external
sealed adjusting screw 1V205699012
81* O-ring (for use only with O-ring sealed
handwheel assembly) low-pressure pilot,
Nitrile (NBR) 1D541506992
82 Hex nut
For use only with O-ring sealed
handwheel assembly low-pressure pilot 1A351124122
For use with Brass cap with external sealed
adjusting screw, Zinc 1A353724122
For use with high-pressure pilot, Plated steel 1A352424122
*Recommended Spare Part
2. An entire pilot assembly may be ordered from your local Sales Ofce by specifying a Type 61L, 61H or 61HP pilot for eld conversion.
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