Armstrong-Yoshitake, Inc. GD-30 Instrucciones de instalación y mantenimiento - Página 3

Navegue en línea o descargue pdf Instrucciones de instalación y mantenimiento para Unidad de control Armstrong-Yoshitake, Inc. GD-30. Armstrong-Yoshitake, Inc. GD-30 4 páginas. Pressure reducing valve

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Disassembly

1. Eliminate pressure from inside the valve. Make

sure the valve is completely free from pressure.

2. Pull up and turn the handle (4) in the direction

(counterclockwise) as shown on the nameplate

of the handle to make the spring (12) free

(not loaded).

3. Remove the bolts (15) and take away the spring

housing (2) (the handle cannot be disassembled).

Take out the spring (12), bellows (10) and valve rod (8).

4. Unscrew (counterclockwise) the cap (3) and take

out the spring (13), screen (9) and valve (7) from the

body (1).

GD-30 1/2" - 1"

Nameplate (23)

Push Nut (22)

Spring (14)

Handle (4)

(Adjusting Screw)

Spring Pin (19)

Split Pin (21)

Bolt (15)

Spring Housing (2)

Flat Washer (18)

Spring Retainer (25)

Adjusting Screw (11)

Spring (12)

Reassembly

1. Check all parts to make sure they are in good

condition before putting back together.

2. Lap valve (7) and valve seat (6) with 1000 grit

lapping compound if needed to ensure no leakage.

3. Reassemble in reverse order as disassembly.

Note: Replace all gaskets where disassembly is required.

Bellows (10)

Gasket (17)

E-Ring (20)

Valve Rod (8)

Valve Seat (6)

Valve (7)

Spring (13)

Screen (9)

Gasket (16)

Cap (3)

Body (1)