4
13
13
23
1
6
18 17
11
16 12
13
10
5
7
15
21
3
22
4
2
9
8
¼ 7
5
/
16 12
⅜ 21
7
/
16 33
½ 45
9
/
16 59
⅝ 97
¾ 130
⅞ 202
1 271
1⅛ 408
ANDERSON GREENWOOD SERIES 400 PISTON PILOT POPRV
InstallatIon and MaIntenance InstructIons
2.3.4 Type XX9 piston and seat
Clean and apply a light coating of Dow Corning
No. 33 or equivalent silicone lubricant on all
threads. Do not apply any lubricant to any of
the
soft goods. Install new seat and reassemble
seat retainer and seat retainer screw or screws.
NOTE
Over tightening of seat retainer screw or screws
can distort or damage the seat and cause leakage.
Retainer screw or screws should be installed until
assembly is snug. Then tighten an additional ¼ to ½
turn to secure assembly.
On 1” to 4” Type 49/59 and 1.5” to 3” Type 69
valves, if either or both the nozzle and lift bolt
were removed, then lift needs to be set. If lift
setting gages are available, use lift setting
procedure 06.3349 (gas service) or 06.3350
(liquid service); otherwise use procedure
05.2284.
Install new piston seal along with original wedge
ring (if so equipped and snap ring. Insert liner
and piston into body and install new liner seal.
Install the cap making sure it is seated squarely
into body. Torque cap bolts uniformly so as not
to ‘cock’ cap. Such a condition may result in
leakage at the liner seal or cause the piston
and liner to bind. See Table II for torque values.
PARTS LIST
Item No. Part name
1 Body
2 Nozzle seal
[1]
3 Nozzle
[1]
4 Dipper tube
5 Liner
6 Liner seal
[2]
7 Seat
[2]
8 Seat retainer
9 Seat retainer screw
10 Piston
11 Lift adjusting bolt
[4]
12 Lock pin
[4]
13 Piston seal
[2]
15 Nozzle retainer
16 Dome spring
17 Cap
18 Cap bolt
21 Supply tube
22 Tube connector
23 Wedge ring
[3]
Detail A
Liquid service
Detail A
Gas service
See detail A
NOTES
[1]
Field replaceable only if required.
[2]
Recommended spare parts for repair.
[3]
Used only for liquid service.
[4]
Not used on 6”, 8” Type 443/453 and 4” and larger
Type 463.
Refer to Section 7.1 for soft goods repair kit part
numbers.
FIGURE 1A - MAIN VALVE
443/453/463
TABLE II
Bolt size Torque value (ft·lbs)
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