Installation

Air Exhaust Ventilation

The air exhaust port is 3/4 npt(f). Do not restrict the air exhaust port. Excessive exhaust restriction can cause erratic pump operation.

To provide a remote exhaust:

1.Remove the muffler (T) from the pump air exhaust port.

2.

3.

Install a grounded air exhaust hose (U). Connect the muffler (T) to the other end of the hose. The minimum size for the air exhaust hose is 3/4 in.

(19 mm) ID. If a hose longer than 15 ft (4.57 m) is required, use a larger diameter hose. Avoid sharp bends or kinks in the hose.

Place a container at the end of the air exhaust line to catch fluid in case a diaphragm ruptures. If the diaphragm ruptures, the fluid being pumped will exhaust with the air.

Figure 2 Vent exhaust air

 

 

KEY

 

 

A

Air supply line

G

Optional needle valve for pump speed

 

 

 

adjustment.

B Bleed-type master air valve

T

Muffler

C

Air filter/regulator

U

Grounded air exhaust hose

D

Air inlet

V

Container for remote air exhaust

EMaster air valve (for accessories)

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334014A

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Graco 334014A important safety instructions Air Exhaust Ventilation, Key