Installation

Air Exhaust Ventilation

Read the FIRE AND EXPLOSION HAZARD and TOXIC FLUID OR FUMES HAZARD warnings on page 5 before operating this pump.

Be sure the system is properly ventilated for your type of installation. When pumping flammable or hazardous fluids, you must vent the exhaust to a safe place, away from people, animals, food handling areas, and all sources of ignition.

Diaphragm failure will cause the fluid being pumped to exhaust with the air. Place an appropriate container at the end of the air exhaust line to catch the fluid. See FIG. 4.

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 connect 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.

3.Place a container (U) at the end of the air exhaust line to catch fluid in case a diaphragm ruptures. See FIG. 4.

Key:

AAir supply line

BBleed-type master air valve (required for pump)

CAir regulator

DAir line quick disconnect

E Master air valve (for accessories)

E

C

B

F

Air line filter

 

F

 

P

Muffler

 

 

A

T

Grounded air exhaust hose

 

 

 

U

Container for remote air exhaust

 

 

 

T

U

P

FIG. 4 Venting Exhaust Air

D

TI8931a

10

311879F

Page 10
Image 10
Hitachi FD2 1590 important safety instructions Air Exhaust Ventilation, Venting Exhaust Air

FD2 1590 specifications

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