Installation, Operation, Maintenance – Leslie Controls AFG-2, etc small flow airmate pressure reducing valve and air loader User Manual
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Figure 1 - Installation Detail
INSTALLATION
Install as shown in Fig. 1. Use non-corrosive fittings and
piping throughout. Use fine wire mesh or poromet filter
screen.
Note: Strainer, shown for Class A-2 Types, is not
necessary for Filter Type Classes, AF-2.
*
When used with air motors or pulsating equipment,
line “A” should be of a sufficient length and diameter
to provide a reservoir. On close coupled installations
install small reservoir.
OPERATION
1. Open inlet supply valve to regulator.
Note: Supply pressure should be at least 5 PSIG above
maximum controlled pressure desired.
2. Open outlet stop valve partially.
3. Turn handwheel (1) clockwise to start flow through
regulator. Adjust for desired controlled pressure.**
Tighten locknut (2). Open outlet to stop valve fully.
** Turn handwheel clockwise to increase controlled
pressure; counterclockwise to decrease.
MAINTENANCE
DISMANTLING
1.
Shut-off air supply. Loosen locknut (2). Relieve all
adjusting spring compression.
2.
Disassemble adjusting spring case (8), top spring seat
(4), adjusting spring(s) (6) and nozzle-diaphragm
assembly from main body.
3.
Grasp internal rib of aspirator plate (14) (marked “Lift
Here”) and lift out of main body. Remove gasket (12).
4.
Unscrew valve seat (16) with “O” Ring (17) from
main body. Lift out main valve (18), with “O” Ring
(19), and main valve spring (20).
Figure 2 - Class A-2 Regulator