An incredible feature list, high quality components, plus amazing performance. The three-chamber high
volume design, driven by a heavy-duty motor produces flow rates of 3 GPM, capable of self-priming up to
6 vertical feet, and can run dry, making it the price to performance leader. This pump also offers a variety
of easy connect fittings and filters.
FEATURES
Intermittent duty
3 chamber diaphragm pump
Industry standard mounting pattern
Run dry capable for normal workloads
Ignition protected
Automatic: controlled by pressure switch
Self priming
Quiet Operation
INSTALLATION
Materials
(if desired) Teflon tape or sealant
4 screws to fasten the pump to the mounting surface
1 diaphragm pump with related accessories
2 (at least) pieces of flexible, reinforced hose piping, with collapsing strength of twice the inlet collapsing
pressure( hose must be minimum 1/2" ID )
1 electrical cutoff switch
1 strong cutting implement for tubing
4 stainless steel hose clamps and screws
1 fuse
1 screwdriver
APPLICATIONS
Any other pressurization system
Yacht/RV/caravan pressurized water system
Sprayer fixtures (vehicle-mounted sprayers, electric sprayers)
Cleaning machines, humidifier, water purification, medical apparatus
Food beverage filling & liquid transfer
Solar water system
Please do follow the instruction manual to install the product. Any action outside what is recommended in this
manual may bring damage to the pump. Any inappropriate installation or operation that causes the pump damage
is not covered by warranty.
CAUTION
1
page
4
page
PUMP FAILS TO TURN OFF AFTER ALL FIXTURES ARE CLOSED
Clogged valves in pump head.
Punctured diaphragm.
Defective pressure switch.
Insufficient voltage.
Discharge line leak.
LOW FLOW AND PRESSURE
Air leak at pump intake.
Punctured diaphragm.
Worn pump bearing (possibly accompanied by loud noise).
Defective motor.
Accumulation of debris inside pump or plumbing.
NOISY
Is the mounting surface flexible? If so, it may be adding noise.
Check if the mounting feet are compressed too tightly.
Check for loose head/screws.
If the pump is plumbed with rigid pipe, then it may transmit noise more easily.
FAILURE TO PRIME BUT MOTOR OPERATES - NO PUMP DISCHARGE
Restricted intake or discharge line.
Air leak in intake line.
Crack in pump housing.
Debris clogged in the valves.
Punctured pump diaphragm.
Initial amp supply is not enough to sufficiently start the motor.
MOTOR FAILS TO TURN ON
Loose or improper wiring.
Failed pressure switch.
Pump circuit has no power.
Blown fuse or thermal protection tripped.
Defective motor.
Diaphragm Pump Manual - 33 Series
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