DCEX50A - Pumps Vevor - Free user manual and instructions
Find the device manual for free DCEX50A Vevor in PDF.
| Brand | Vevor |
| Model | DCEX50A |
| Product Type | Direct Current (DC) Fuel Transfer Pump |
| Pump Type | Positive Displacement Rotary Vane Pump |
| Supply Voltage | 12 V DC (vehicle battery) |
| Power | 1/5 HP (horsepower) |
| Maximum Flow Rate | 8 GPM (approximately 30 L/min) |
| Maximum Reach | 30 feet (approximately 9 meters) |
| Maximum Suction Height | 7 feet (approximately 2.1 meters) |
| Operating Temperature | -25°C to +50°C |
| Duty Cycle | 30 minutes of operation, then 30 minutes of rest (at room temperature) |
| Compatible Fluids | Gasoline, diesel, kerosene, and mineral spirits (not for water or human consumption) |
| Included Accessories | Outlet hose, intake hose, automatic fuel nozzle, PTFE thread tape |
| Maintenance | Clean the filter and strainer; check wear on vanes and rotor; replace if necessary |
| Safety | Do not smoke nearby; disconnect before maintenance; use PTFE tape on threads; do not use in an aircraft or for potable liquids |
| Repairability | Spare parts available: vanes, rotor, filter, hoses, nozzle; contact Vevor after-sales service |
| Warranty | Electronic warranty certificate available at www.vevor.com/support |
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USER MANUAL DCEX50A Vevor
Technical Support and E-Warranty Certificate
www.vevor.com/support
DC Fuel Transfer Pump
Model: DCEX50A
We continue to be committed to providing you with tools at competitive prices. "Save Half," "Half Price," or any other similar expressions used by us only represent the savings you might benefit from buying certain tools with us compared to top brands, and does not necessarily mean to cover all categories of tools offered. We kindly remind you to verify carefully when placing an order with us to ensure you are actually saving half in comparison with the top major brands.
Model: DCEX50A

Need Help? Contact Us!
Have product questions? Need technical support? Please feel free to contact us:
Technical Support and E-Warranty Certificate www.vevor.com/support
This is the original instruction. Please read all manual instructions carefully before operating. VEVOR reserves the right to interpret 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 D 2012/19/EC. The symbol showing a wheelie bin crossed through indicates that the product requires separate refu collection in the European Union. This applies to the p and all accessories marked with this symbol. Products as such may not be discarded with normal domestic w must be taken to a collection point for recycling electri electronic devices |
Accessory
| NO. | Description | Qty | Picture |
| 1 | Outlet Hose | 1 | ![]() |
| 2 | Inlet Hose | 1 | ![]() |
| 3 | Automatic Fuel Nozzle | 1 | ![]() |
| 4 | Thread tape | 1 | ![]() |
Main Specifications
| Model | DCEX50A |
| Voltage | DC12V |
| Power | 1/5 HP |
| Max Flow | 8 GPM |
| Max lift | 30 FT |
| Max Suction lift | 7 FT |
| Applicable temperature | -25~50°C |
| Working hours | Work for 30 minutes, stop fo minutes (at room temperature |
General Safety Rules
Safety Instructions
To ensure safe and efficient operation, it is essential to read and follow each of these warnings and precautions.
- DO NOT smoke near pump or use pump near an open flame.
- Disconnect power to pump before servicing pump.
- Turn off the switch before connecting power.
- Take motors needing service to an authorized repair shop or return factory to maintain.
- A filter should be used on pump outlet to ensure that no foreign is transferred to fuel tank.
- Tank or barrel should be anchored to prevent tipping in both the full and empty conditions.
WARNING
- This product should not be used for fluid transfer into aircraft. This product is not suited for use with fluids for human consumption or those containing water.
- For DC pump extreme operating condition with working cycles longer than 30 minutes can cause the motor temperature to rise, thus damage the motor itself. Each 30-minute working cycle should always be followed by a 30-minute power-off cooling phase.
- Use PTFE tape on all pipe threads.
- DO NOT RUN DRY OVER 30 SECONDS
GENERAL DESCRIPTION
These products are positive displacement. Rotary vane pumps. Depend on installation and viscosity, these pumps can deliver up to 30L/Min. rugged design makes for a long life of dependability.
NOTE: FLUID COMPATIBILITY
These products are compatible with the following fluids:
Gasoline, Diesel, Kerosene & Mineral Spirits
Do not use with other fluids without consulting the manufacturer.
Environment Condition
| Temperature | -25°C ~ +50°C |
| Relative Humidity | 30% ~ 90% |
| Atmospheric Pressure | 86Kpa ~ 106Kpa |
OPERATION INSTRUCTIONS
- Before electrical installation, ensure all parts are well installed, connected, grounded, and well sealed.
- Place the switch into the OFF position to prevent accidental spillage once power is engaged to the motor.
- Pass the electrical wires to the power source and make sure the alligator clips are correctly connected to the negative (-) or positive (+) poles on the power source.
- Open the fueling nozzle to fuel equipment.
- When fueling is complete, return the nozzle to its storage position and turn off the

"I": pump ON and flow moves in the arrow direction.
"O": pump OFF.
ASSEMBLY PARTS
As shown in the figure: Use the hex wrench to assemble the accessories in the corresponding position, tighten the bolts, so that it is fixed firmly.
COMMON TROUBLESHOOTING
| Symptom | Cause | Cure |
| Pump won’t prime | Suction line problem | Check for leaks or restrictions in suction |
| Bypass valve open | Remove and inspect valve; must move and be free of debris | |
| Vanes sticking | Check vanes and rotor slots for nicks, and wear | |
| Excessive rotor or var wear | Inspect rotor and vanes for excessive w damage; replace if necessary | |
| System blockages | Check filter and bypass valve for debris remove nozzle and test flow with pump | |
| Low capacity | Excessive dirt in scree | Remove and clean screen |
| Suction line problems | Check for leaks or restrictions in suction | |
| Bypass valve sticking | Remove and inspect valve; must move and be free of debris | |
| Outlet blocked | Check pump outlet hose, nozzle, and fill blockage | |
| Vanes sticking | Check vanes and rotor slots for wear; if necessary | |
| Excessive rotor or var wear | Inspect rotor and vanes for excessive w damage; replace if necessary | |
| Hose or nozzle damag | Replace hose or nozzle | |
| Plugged filter | Replace filter | |
| Low fluid level | Fill tank | |
| Motor overheats | Clogged screen | clean screen |
| Restricted suction pipe | Remove and clean pipe | |
| Motor failure | Contact your local supplier for repair or replace | |
| Pump rotor lock-up | Clean and check pump rotor and vanes |
VEVOR®
TOUGH TOOLS, HALF PRICE
Technical Support and E-Warranty Certificate www.vevor.com/support
VEVOR®
TOUGH TOOLS, HALF PRICE
NEED HELP? CONTACT US!
NEED HELP? CONTACT US!
NEED HELP? CONTACT US!
GENERAL TROUBLESHOOTING
www.vevor.com/support
DC FUEL TRANSFER PUMP
MODEL: DCEX50A





