Graco 308149P System Accessories, Air and Fluid Hoses, Mounting Accessories, Air Line Accessories

Installation

(AIR-POWERED PUMPS)

SYSTEM ACCESSORIES

WARNING

A bleed-type master air valve (E) and a fluid drain valve (M) are required in your system. These accessories help reduce the risk of serious injury, including fluid injection and splashing of fluid in the eyes or on the skin, and injury from moving parts if you are adjusting or repairing the pump.

The bleed-type master air valve relieves air trapped between this valve and the pump after the air is shut off. Trapped air can cause the pump to cycle unexpectedly. Locate the valve close to the pump.

The fluid drain valve assists in relieving fluid pres- sure in the displacement pump, hose, and gun. Triggering the gun to relieve pressure may not be sufficient.

Air and Fluid Hoses

Be sure all air hoses (H) and fluid hoses (N) are prop- erly sized and pressure-rated for your system. Use only electrically conductive hoses. Fluid hoses must have spring guards on both ends.

DA bleed-type master air valve (E) is required in your system to relieve air trapped between it and the air motor when the valve is closed (see the WARNING above). Be sure the bleed valve is easily accessible from the pump, and is located downstream from the air regulator.

DAn air regulator (F) controls pump speed and outlet pressure by adjusting the air pressure to the pump. Locate the regulator close to the pump, but upstream from the bleed-type master air valve.

DA pump runaway valve (C) senses when the pump is running too fast and automatically shuts off the air to the motor. A pump which runs too fast can be seriously damaged.

DAn air manifold (G) has a swivel air inlet. It mounts to a ram, and has ports for connecting lines to air accessories, such as the ram air regulator

(T).

DAn air line filter (J) removes harmful dirt and moisture from the compressed air supply.

DA second bleed-type air valve (K) isolates the air line accessories for servicing. Locate upstream from all other air line accessories.

Mounting Accessories

WARNING

For Model 222940 Premier Pump, do not lift the pump by the lift ring when the total weight exceeds 550 lb (250 kg).

Mount the pump (A) to suit the type of installation planned. Fig. 3 on page 8 illustrates a ram-mounted pump in a multi-gun header system. Pump dimensions and the mounting hole layout are shown on pages 36 and 37.

If you are mounting the pump on a ram, refer to the separate ram manual for installation and operation instructions.

Air Line Accessories

Install the following accessories in the order shown in Fig. 3, using adapters as necessary:

DAn air line lubricator (D) provides automatic air motor lubrication.

Fluid Line Accessories

Install the following accessories in the positions shown in Fig. 3, using adapters as necessary:

DInstall a fluid shutoff valve (P) at each gun drop, to isolate the gun and fluid accessories for servic- ing.

DInstall a fluid drain valve (M) near the pump fluid outlet, and at each gun station. The drain valves are required in your system to relieve fluid pressure in the displacement pump, hose and gun (see the WARNING at left). Drain valves at the gun stations may be mounted in the base of a fluid regulator (L), using an adapter.

DA fluid regulator (L) controls fluid pressure to the gun/valve, and dampens pressure surges.

DA gun or valve (S) dispenses the fluid. The gun shown in Fig. 3 is a high pressure dispensing gun for highly viscous fluids.

DA gun swivel (R) allows freer gun movement.

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