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

Seaflo 34 Series Specifications

General

Type	Diaphragm Pump
Self-Priming	Yes
Dry Run Capable	Yes
Voltage	12V DC
Pressure	35 PSI / 2.4 Bar, 55 PSI / 3.8 Bar, 70 PSI / 4.8 Bar
Max Flow Rate	3.0 GPM
Max Pressure	35 PSI / 2.4 Bar, 55 PSI / 3.8 Bar, 70 PSI / 4.8 Bar (depending on model)

Summary

Pump Features and Applications

Product Features

Highlights key features of the 34 Series diaphragm pump, including its duty cycle, priming capability, and dry-running ability.

Pump Applications

Lists various uses for the diaphragm pump, such as sprayers, cleaning machines, water purification, and solar water systems.

Installation Guide

Installation Materials

Details the necessary components and accessories required for installing the diaphragm pump.

Pump Setup Instructions

Provides step-by-step guidance on mounting the pump, securing it, and correct hose sizing for optimal performance.

Electrical Information and Repair

Electrical Wire Sizing

Provides a chart for selecting appropriate wire gauge (AWG) based on distance for electrical connections.

Pump Repair Kits

Identifies numbered components of the pump, likely corresponding to available repair kits.

Pump Troubleshooting

Pulsating Flow Issues

Addresses pump cycling on and off, suggesting checks for kinks, line size, and air leaks.

Failure to Prime

Covers pump failure to prime, listing causes like air leaks, diaphragm issues, debris, or insufficient power.

Motor Not Turning On

Details reasons for the motor not starting, including wiring, power supply, fuse, or switch problems.