Installation

Air Exhaust Ventilation

WARNING

FIRE AND EXPLOSION HAZARD

Be sure to read FIRE OR EXPLOSION HAZARD and TOXIC FLUID HAZARD on page 3, before operating this pump.

Be sure the system is properly ventilated for your type of installation. You must

vent the exhaust to a safe place, away from peo- ple, animals, food handling areas, and all sources of ignition when pumping flammable or hazardous fluids.

Diaphragm failure will cause the fluid being pumped to exhaust with the air. Place an appropri- ate container at the end of the air exhaust line to catch the fluid. See Fig. 6.

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 (P) from the pump air exhaust port.

2.Install a grounded air exhaust hose (T) and con- nect the muffler (P) 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. See Fig. 6.

3.Place a container (U) at the end of the air exhaust line to catch fluid in case a diaphragm ruptures.

VENTING EXHAUST AIR

 

 

 

 

 

KEY

 

 

 

 

 

A

Air supply line

 

 

 

 

 

B

Bleed-type master air valve

 

 

 

 

 

 

(required for pump)

 

 

 

 

 

C

Air regulator

E

F

C

B

 

D

Air line quick disconnect

 

 

 

 

 

E

Master air valve (for accessories)

 

 

 

 

 

F

Air line filter

 

 

 

 

 

P

Muffler

 

 

 

 

 

T

Grounded air exhaust hose

 

 

 

 

A

U

Container for remote air exhaust

 

 

 

 

 

 

D

T

U

P

Fig. 6

04168A

10 308443

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Graco D82, DS5, D72, D85, DR2, DR5, DS2, D81, D75 Air Exhaust Ventilation, Fire and Explosion Hazard, Venting Exhaust AIR

D75, D81, D85, DS5, DS2 specifications

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