2
ANDERSON GREENWOOD TYPE 81P DSO PRESSURE RELIEF VALVES
MAINTENANCE INSTRUCTIONS
Seat detail
(-4 illustrated)
FIGURE 1
-4, -8 ORIFICE
Cap
Pressure adjustment screw
Outlet
Nozzle
Spindle
Guide
Drag seal
Seat retainer screw
Bushing
Spindle seal
Spindle skirt
Seat
Spring washer
Spring
Body
Guide seal
Vent
Plug
Seal
Bushing seal
2.4 Soft goods repair kit
The part numbers for soft goods repair kits are listed below. Each kit contains the seat and
seals for all pressure ranges and the lubricant specified in paragraph 2.3.
MATERIAL
Orifice NBR FKM EPR
-4 04.4805.029 04.4805.032 04.4805.071
-8 04.4805.029 04.4805.032 04.4805.071