Installation Guide
1305 Series
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©Fisher Controls International, Inc., 2002; All Rights Reserved
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CR1399-A
Startup
The regulator is factory set at approximately the midpoint of
the spring range or the pressure requested, so an initial
adjustment may be required to give the desired results. With
proper installation completed and relief valves properly
adjusted, slowly open the upstream and downstream shutoff
valves.
Adjustment
To change the outlet pressure, remove the closing cap or
loosen the locknut and turn the adjusting screw clockwise
to increase outlet pressure or counterclockwise to decrease
pressure. Monitor the outlet pressure with a test gauge
during the adjustment. Replace the closing cap or tighten
the locknut to maintain the desired setting.
Parts List
Key Description
1 Lower Casing
2 Spring Case
3 Inlet Adaptor
4 Orifice
5 Valve Disk Assembly
6 Valve Stem
7 O-Ring
8 Union Nut
9 Split Ring
10 Valve Lever Assembly
10A Valve Lever
10B Valve Lever Pin
11 Pusher Post Assembly
11A Pusher Post
11B Roll Pin
12 Lever Support Pin
14 Diaphragm
15 Diaphragm Head
16 Hex Nut
17 Spring
18 Upper Spring Seat
19 Set Screw
20 Hex Nut
21 Machine Screw
23 O-Ring
24 Pipe Plug
27 Vent Screen
28 Baffle
30 O-Ring
Figure 1. 1305 Series Regulator
Taking Out of Service (Shutdown)
To avoid personal injury resulting from sudden
release of pressure, isolate the regulator from all
pressure before attempting disassembly.