9
A
A
39
40
41
4
14
13
32
21
28
22
7
11
24
5
26
34
33
1 25 2 27 28
35
29
30
31
8
3
23
12
37
15
16
17
18
6
9, 36
10
19, 20
ANDERSON GREENWOOD SERIES 400 PISTON PILOT POPRV
InstallatIon and MaIntenance InstructIons
3.2.3 Accessories
Assembly is done in the reverse order
of disassembly. On backflow preventers
(Reference Figures 4 and 5), lightly lubricate
the bushing threads with Dow Corning No. 33
silicone grease or equivalent. A small amount
of lubricant can be applied to the bushing
seal(s).
Style E
Inlet
Exhaust
Section A - A
Style A
Rotated 90°
for clarity
FIGURE 3 - PILOT
(Continued thru page 11)
Do not get any lubricant on the shuttle, shuttle
seat(s) and or bushing seat. When re-installing
the backflow preventer on the main valve dome
port orient it so that the bushing is connected to
the pilot (process) side.
Dome
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