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ANDERSON GREENWOOD TYPE 91 AND 94 TYPE OPERATED SAFETY RELIEF VALVES
INSTALLATION AND MAINTENANCE INSTRUCTIONS
FIGURE 4
Type 91
View A - A
Item
100
110
130
140
150
160
200
210
220
230
350
400
420
430
500
510
550
560
570
580 *
590 *
610 *
620 *
630 *
640 *
660 *
690 *
760
790
800
810
840
Exhaust
NOTES
*
Recommended spare parts for repairs
1.
Only used if item 500 is PTFE
Refer to Section 8 for soft goods repair kits.
Description
Body
Nozzle
Boost spacer
Sense spacer
Sense plate
Boost plate
Bonnet assembly
Upper diaphragm case
Lower diaphragm case
Spacer ring
Blowdown adjustment needle
Filter screen
Seat - retainer
Ring - retainer
Spindle diaphragm
Diaphragm - sense
Spindle
Check plate
Seat
Bonnet gasket
Boost tube seal
Body bolt seal
Blowdown seal
Bushing seal
Gasket case
Spindle seal
Spindle diaphragm gasket
[1]
Cap
Pressure adjustment screw
Body vent
Bonnet vent
Spring
6
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