Emerson Anderson Greenwood 9300 Series Installation And Maintenance Instructions Manual page 15

Pilot operated safety relief valves
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Anderson Greenwood SerieS 9300 Pilot oPerated Safety relief ValVeS
InstallatIon and MaIntenance InstructIons
34
19
16
detail A
28
40
Vacuum actuator connection
detail b
39
fiGUre 8
3.2 Pilot assembly for non-flowing modulating
pilots (series 400b)
assembly is done in the reverse order of
disassembly.
1. lubricate all o-rings, sliding surfaces,
screw threads and spring washer pivot
points with dow Corning No. 33 silicone
grease or equivalent.
note: for oxygen service valves use only
lubricants suitable for this service, such as
Krytox 240aC.
2. the spindle o-ring and bearing surface should
be lubricated with dow Corning fS 3451 or
equivalent.
note: do not lubricate inlet or outlet seat
o-rings
3. assemble the diaphragm lower case (2) to
the body (1).
note: for Pilots with Kalrez
®
two Ptfe gaskets (37) between the lower
diaphragm case (2) and the body (1).
13
15
14
15
17
1
26
44
29
4. assemble the inlet screen (41) to the inlet
connector (26) and the inlet connector (26)
to the body (1).
5. assemble the inlet seat (upper o-ring [-014])
(UPPer 32) and the spindle o-ring (23) to
the spindle (24).
6. assemble the spindle (24) to the spool (36)
and install the outlet seat (lower o-ring
[-014]) (loWer 32) to the spindle (24).
note
Kalrez
is a registered trademark of duPont dow
®
elastomers.
o-rings, use
remote vacuum
sense ⅜" NPt
detail c
27
detail d
PArts
item
description
13
Bolt
14
Plate, diaphragm support
15
Gasket, diaphragm case
16
Washer, lock
17
Nut
19
diaphragm, feedback
29
Vent
34
diaphragm, sense
39
ferrule, tubing
40
retainer, dome tubing
44
Bushing
15

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