FL-30 - Pumps Vevor - Free user manual and instructions

Product Type	12V DC Self-Priming Diaphragm Pump
Brand	Vevor
Model	FL-30
Supply Voltage	12V DC
Rated Current	2.5 A
Max Current	4.5 A
Free Flow Rate	10 L/min (2.7 GPM)
Working Pressure	17 PSI (1.28 bar)
Duty Cycle	Intermittent
Self-Priming	Yes
Dry Running	Possible up to 10 minutes
Thermal Protection	Yes (automatic shutdown in case of overheating)
Built-in Bypass	Yes (adjustable)
Adjustable Pressure Switch	Yes
Inlet/Outlet Connection	3/4" (19 mm) inner diameter
Recommended Fuse	30 A
Applications	Pressurized water system for yacht, RV, caravan; sprayers; cleaning machines; solar water system
Maximum Suction Lift	2 m
Maximum Delivery Head	12 m

Frequently Asked Questions - FL-30 Vevor

How to install the FL-30 pump?

Mount the pump on a stable surface without over-tightening the feet. Use a reinforced 3/4" (19 mm) hose for inlet and outlet. Install a 30A fuse on the positive cable. Connect the red wire to positive and the black wire to negative of the 12V battery.

The pump does not prime, what to do?

Check for air leaks in the inlet line. Make sure the suction hose is not kinked or blocked. Ensure the pump is filled with water before starting. Clean the valves if necessary.

How to adjust the pressure switch?

Open the pressure switch cover on the pump head. Turn the screw clockwise to increase pressure, counterclockwise to decrease. Do not exceed recommended pressure limits.

The pump stops and restarts constantly, why?

This may be due to a hose diameter too small, a leak in the outlet circuit, a kinked hose, or an obstruction in the pump. Also check that the pressure switch is properly adjusted.

What fuse to use for the FL-30 pump?

Use a 30A fuse on the positive wire. Ensure the pump circuit has no other electrical load.

The pump runs but flow is low, what to check?

Check for air leaks at the inlet, clean debris from the pump or plumbing, inspect the diaphragm for perforations, and ensure the motor is running properly.

How to adjust the bypass?

The bypass is preset at the factory. If necessary, tighten or loosen the adjustment screw to change the minimum working pressure. Caution: incorrect adjustment may damage the pump. Consult a technician if unsure.

The pump is noisy, how to reduce noise?

Check that the mounting feet are not too tight. Use a flexible mounting surface and flexible hoses to absorb vibrations. Tighten the pump head screws if loose.

Can I run the pump dry?

Yes, the pump can run dry for up to 10 minutes. Beyond that, it may damage the pressure switch. Avoid prolonged dry running.

How to maintain the FL-30 pump?

Regularly clean the inlet strainer and valves. Check the diaphragm and replace if perforated. Ensure electrical connections are clean and tight. Use clean water to avoid blockages.

USER MANUAL FL-30 Vevor

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Diaphragm Pump Manual

MODEL: FL-30 / FL-40

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MODEL: FL-30 / FL-40

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This is the original instruction. Please read all manual instructions carefully before operating. VEVOR reserves a clear interpretation of the user manual. The appearance of the product shall be subject to the product you received. Please forgive us that we won't inform you of any technology or software updates on our product.

Warning-To reduce the risk of injury, user must read instructions manual carefully.

This product is subject to the provision of European 2012/19/EC. The symbol showing a wheelie bin cross through indicates that the product requires separate re collection in the European Union. This applies to the and all accessories marked with this symbol. Products marked as such may not be discarded with normal d waste, but must be taken to a collection point for re electrical and electronic devices

FEATURES

• Run dry capable for normal workloads
• Self-priming
• Intermittent duty • Automatic: controlled by pressure switch
• Quiet operation • Industry standard mounting pattern
• Bypass: reduces cycling • Thermal protection

APPLICABLE SCENE

• 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 • Any other pressurization system

SPECIFICATION PARAMETERS

Model	FL-30	FL-40
Input	DC12V	DC12V
Rated current	5.2 A	11 A
Rated flow	2.5 GPM	4.5 GPM
Rated pressure	17 PSI	40 PSI
Max lift	12 m	35 m
Max suction range	2 m	3 m

INSTALLATION

Materials

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 ID) 3 stainless steel hose clamps and screws 4 screws to fasten the pump to the mounting surface

1 electrical cutoff switch 1 fuse 1 screwdriver 1 strong cutting implement for tubing

(if desired) Teflon tape or sealant

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 casing in the event of a malfunction.
2. Secure the feet, but do not compress them. Over tightening the securing screws may reduce their ability to dissipate noise and vibration.
3. Intake hose must be minimum 3/4" (19 mm) ID reinforced hose. Main distribution line from pump outlet should also be 3/4" (19 mm) ID with branch and individual supply lines to outlets no smaller than 3/8" (10 mm).
4. Plumb the system using high pressure (2x pump rating), braided, flexible tubing to minimize vibration/noise.
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.

7. Strainer should be attached to the inlet side.

1. The fittings must be secured to avoid leakage.
2. Use clamps at both ends of hose to prevent air leaks into the water.
3. If a check valve is installed in the plumbing, it must have a cracking pressure of no more than 2 psi.
4. If applying a sealer or plumbing tape, be careful not to over-tighten; they may be sucked into the pump.
5. 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.
6. 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.
7. The electrical circuit should be protected with an over-current protection device (fuse) in the positive lead. This pump requires a 30 amp fuse.
8. The pump circuit should not include any other electrical loads.
9. 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.
10. 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.

ELECTRICAL INFORMATION

Pressure regulation function: The salient point in the pump head is equipped with the pressure switch, which can open the pressure switch cover, tighten in clockwise is to increase pressure, loosen in anti-clockwise is to reduce the pressure.

SCHEMATIC DIAGRAM OF PARTS

Key	Description	Quantity
A	Pump Head Assembly	1
B	Valve Assembly	1
C	Diaphragm Assembly	1
D	Motor Assembly	1
1	Pressure switch	1
2	Diaphragm of Pressure Switch	1
3	Pump Head	1
4	Quick Attach Clip	2
5	Diaphragm	1
6	Rubber Feet	2
7	Motor	1

TROUBLESHOOTING

PULSATING FLOW- PUMP CYCLES ON AND OFF	1.The pipe equipment of water inlet or with a too small diameter. 2.Please check the joint is tightened, or the water outlet is in gas leak.3.Please check if the flexible pipe of wa outlet is knotted or bending. 4.Check if t exist pump blocked operation, please try keep smooth drainage.
FAILURE TO PRIME BUT MOTOR OPERATES NO PUMP DISCHARGE	1.Restricted intake or discharge line.Air leak in intake line.2.Punctured pump diaphragm.Initial amp supply is not enough to suffi start the motor.3.Debris clogged in the valves.4.Crack in pump housing.
MOTOR FAILS TO TURN OF	1.Loose or improper wiring.2.Pump circuit has no power.3.Blown fuse or thermal protection tripped4.Failed pressure switch.5.Defective motor.
PUMP FAILS TO TURN OFF AFTER ALL FIXTURES ARE CLOSED	1.Punctured diaphragm.2.Discharge line leak.3.Defective pressure switch.4.Insufficient voltage.5.Clogged valves in pump head.
LOW FLOW AND PRESSUR	1.Air leak at pump intake.2.Accumulation of debris inside pump or plumbing.3.Worn pump bearing (possibly accompani by loud noise).4.Punctured diaphragm5.Defective motor.
NOISY	1.Check if the mounting feet are compres too tightly.2.Is the mounting surface flexible? If so, may be adding noise.3.Check for loose head/screws.4.If the pump is plumbed with rigid pipe it may transmit noise more easily.

ABOUT THE BYPASS

Please consult a professional technician in the case that the bypass adjustment. Improper adjustment of the bypass may damage the pump. The bypass comes preset for optimal operation of the pump. If your application calls for a different setting for the bypass, you may change yourself. Carefully tighten the screw to increase or loosen the screw to decrease the minimum operational pressure of the bypass.

CONNECTION METHOD OF 12 V OR 24 V PUMP (BATTERY OR TRANSFORMER)

Connection method of Battery

Connection method of Transformer

Caution

1. It is need to ensure the smooth water yield when the water pump working, to avoid the damage of pressure switch due to the pump b operation!
2. Although the water pump support the dry operating in short time, pl not to exceed 10 Mi nut es!
3. It is a self-priming diaphragm pump with slight waterproof function; please do not put it directly into water!
4. It is a clean water pump; please do not pump sewage with impurities to avoid blocking the pump head!
5. It is normal for the motor to be hot when the pump is in use, because a temperature control protector is built-in. It will automatically stop working when the temperature reaches a certain degree Celsius. Please feel free to use it.

Made In China

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VEVOR®

TOUGH TOOLS, HALF PRICE

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Connection method of Battery

Connection method of Transformer

Prudence

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Connection method of Battery

Connection method of Transformer

Caution

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PARTS DIAGRAM

Connection method of Battery

Connection method of Transformer

Attention

Connection method of Battery

Connection method of Transformer

Caution

Connection method of Battery

Connection method of Transformer

Caution

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Connection method of Battery

Connection method of Transformer

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Membrane pump manual

MODEL: FL-30 / FL-40

SCHEMATIC DIAGRAM OF PARTS

Connection method of Battery

Connection method of Transformer

Caution

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