Seaflo 34 Series User manual

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Diaphragm Pump Manual-34 Series
FEATURES
Continuous duty
3 chamber diaphragm pump
Self priming
Run dry capable for normal workloads
An economical workhorse, the 34 Series are engineered for flexibility. With on-demand switch, up to
2.2GPM and 160PSI, capable of self-priming up to 6 vertical feet, and can run dry, the 34 Series will meet
your special requirements with positive predictable performance. We also offers a variety of easy connect
fittings and filters.
Automatic: controlled by pressure switch
Ignition protected
Industry standard mounting pattern
Quiet Operation
APPLICATIONS
INSTALLATION
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 screwdriver
1 strong cutting implement for tubing
4 screws to fasten the pump to the mounting surface
(if desired) Teflon tape or sealant
1 fuse
4 stainless steel hose clamps and screws
1 electrical cutoff switch
Materials
Setup
1. The pump may be mounted in any position. If mounted vertically, the pump head should be in the down
position to avoid leakage into the motor casing in the event of a malfunction.
3. Intake hose must be minimum 1/2" (13 mm) ID reinforced hose. Main distribution line from pump outlet should
also be 1/2" (13 mm) ID with branch and individual supply lines to outlets no smaller than 3/8" (10 mm).
2. Secure the feet, but do not compress them. Overtightening the securing screws may reduce their ability to
dissipate noise and vibration.
Sprayer fixtures (vehicle-mounted sprayers, electric sprayers)
Food beverage filling & liquid transfer
Solar water system
Any other pressurization system
Cleaning machines, humidifier, water purification, medical apparatus
PUMP FAILS TO TURN OFF AFTER ALL FIXTURES ARE CLOSED
Insufficient voltage.
Punctured diaphragm.
Discharge line leak.
Defective pressure switch.
Clogged valves in pump head.
LOW FLOW AND PRESSURE
Punctured diaphragm.
Accumulation of debris inside pump or plumbing.
Air leak at pump intake.
Worn pump bearing (possibly accompanied by loud noise).
Defective motor.
NOISY
Check if the mounting feet are compressed too tightly.
Check for loose head/screws.
Is the mounting surface flexible? If so, it may be adding noise.
If the pump is plumbed with rigid pipe, then it may transmit noise more easily.
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

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REPAIR KITS
ELECTRICAL INFORMATION
7. Strainer should be attached to the inlet side.
4. Plumb the system using high pressure (2x pump rating), braided, flexible tubing to minimize vibration/noise.
12. This pump should be wired on its own dedicated circuit. Connect the positive lead (red) to the positive
terminal of your battery and the negative wire (black) to the negative terminal of your battery.
14. The electrical circuit should be protected with an over-current protection device (fuse) in the positive lead.
This pump requires a 15 amp fuse.
13. In an easily accessible location, install a switch to control electricity to the pump. Turn the pump off when
not used for extended periods or when the tank is empty.
5. Do not apply inlet pressure in excess of 30 psi. In general, try to avoid any inlet pressure completely.
6. Avoid any kinks or fittings which could cause excessive restrictions.
8. The fittings must be secured to avoid leakage.
10. If a check valve is installed in the plumbing, it must have a cracking pressure of no more than 2 psi.
9. Use clamps at both ends of hose to prevent air leaks into the water line.
11. If applying a sealer or plumbing tape, be careful to not overtighten, as they may be sucked into pump.
15. The pump circuit should not include any other electrical loads.
16. As the water supply pump is non-essential, reference the wire chart under the electrical information. Be
sure to have the correct wire sizing for the length of wire you are using.
17. After installation, check the voltage at the pump motor. Voltage should be checked when pump is operating.
Full voltage must be available at the pump motor at all times.
Notes
2. We do not recommend the use of metal fittings. When possible, use the provided plastic fittings.
3. Do not adjust the bypass personally without the help of technician.
4. Lack of sanitizing and maintenance is one of the main reasons of under performance of the pump. Please do
maintenance and winterize the pump at appropriate times, especially before and after a period of storage.
1. Flexible potable water hose or PEX tubing is recommended instead of rigid piping at pump. If you choose to
use rigid piping, provide a short length of hose between pipe and the pump to avoid noise and vibration.
30-50 (9-15)
Ft. (M)
0-20 (0-6)
20-30 (6-9)
50-65 (15-19)
AWG (MM²)
16 AWG
14 AWG
10 AWG
12 AWG
Description
Pump Head Assembly
Valve Assembly
Pressure Switch
Switch Diaphragm
Pump Head
Motor Assembly
Diaphragm
Diaphragm Assembly
Rubber Feet
Motor
TROUBLESHOOTING
PULSATING FLOW– PUMP CYCLES ON AND OFF
Plumbing lines or fittings may be too small.
Clean faucets and filters.
Check fitting tightness for air leaks.
Check lines for kinks.
FAILURE TO PRIME BUT MOTOR OPERATES - NO PUMP DISCHARGE
Initial amp supply is not enough to sufficiently start the motor.
Air leak in intake line.
Debris clogged in the valves.
Crack in pump housing.
Restricted intake or discharge line.
Punctured pump diaphragm.
MOTOR FAILS TO TURN ON
Loose or improper wiring.
Pump circuit has no power.
Failed pressure switch.
Defective motor.
Blown fuse.
Key
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