3
ANDERSON GREENWOOD SERIES 400 PISTON PILOT POPRV
InstallatIon and MaIntenance InstructIons
2.3 Assembly
2.3.1 Nozzle and nozzle seal installation
1. Place nozzle seal and nozzle in body.
2. Place nozzle retainer over nozzle and thread
into body until it stops on nozzle shoulder.
Do not lubricate nozzle retainer threads or
mating body threads.
3. Repeat steps 3 through 5 of disassembly
procedure to compress nozzle seal.
Thread nozzle retainer into body as seal is
compressed to keep nozzle retainer from
binding against piston.
4. Use a punch or bar with a light hammer and
tap on the nozzle retainer teeth to snug the
nozzle retainer threads.
5. Loosen cap bolts to remove load from
spacer.
6. Remove spacer from valve.
TABLE I
Valve size and type
X = Main valve seat type, 3 or 9 Spacer P/N Cap bolt thread # Cap bolts to use Cap bolt torque (ft·lb)
1/1.5 x 2 Type 44X/45X (D, E and F orifice) 06.5612.001 .500-20 UNF 2 31
1.5 x 2/3 Type 44X/45X (G and H orifice) 06.5612.002 .500-20 UNF 2 41
1.5 x 2/3 Type 44X/45X (G and H orifice) 06.5612.002 .625-18 UNF 2 51
2” Type 44X/45X 06.5612.004 .500-20 UNF 4 27
2” Type 44X/45X 06.5612.004 .625-18 UNF 4 34
3” Type 44X/45X 06.5612.006 .500-20 UNF 4 35
3” Type 44X/45X 06.5612.006 .625-18 UNF 4 44
4” Type 44X/45X 06.5612.008 .750-16 UNF 4 130
4” Type 44X/45X 06.5612.008 .875-14 UNF 4 151
6” Type 44X/45X 06.5612.009 .750-16 UNF 2 82
6” Type 44X/45X 06.5612.009 .875-14 UNF 2 95
8” Type 44X/45X 06.5612.010 .875-14 UNF 4 123
8” Type 44X/45X 06.5612.010 1.000-14 UNS 4 140
1.5” Type 46X 06.5612.004 .500-20 UNF 2 19
2” Type 46X 06.5612.006 .500-20 UNF 2 31
2” Type 46X 06.5612.006 .625-18 UNF 2 39
3” Type 46X 06.5612.008 .750-16 UNF 2 113
4” Type 46X 06.5612.011 .625-18 UNF 2 63
6” Type 46X 06.5612.012 .750-16 UNF 2 88
8 x 88 Type 46X 06.5612.013 .875-14 UNF 4 119
8 x 10 Type 46X 06.5612.014 1.125-12 UNF 10 89
10” Type 46X 06.5612.015 1.125-12 UNF 10 90
2.3.2 Soft goods installation and main valve
reassembly
Refer to Figure 1A (piston/seat Type XX3) and
Figure 1B (piston/seat Type XX9) for parts
description and location.
2.3.3 Type XX3 piston and seat
Clean and apply a light coating of Dow Corning
No. 33 or equivalent silicone lubricant on all
threads. 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 43/53 and 1.5” to 3” Type 63
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). Lubricate upper
portion of liner I.D., piston seal, and wedge
ring (if present) with Dow Corning No. 33 or
equivalent for all gas service valves and for
liquid service valves with set pressure below
275 psig. Liquid service valves with set pressure
at 275 psig and above use Desco 600 or
equivalent. Use lubricant sparingly. 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.
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