1. Producte acabatview
The VEVOR 12V Diaphragm Water Pump is designed for various pressurization systems, including RVs, marine yachts, agricultural spraying, general industrial applications, and sprayer fixtures. These automatic self-priming pumps are engineered for reliable performance, quiet operation, and a long service life, ensuring efficient water transfer and boosting capabilities.

Figure 1: VEVOR 12V Diaphragm Water Pump (FL-40 model shown)
2. Informació de seguretat
Please read and understand all safety instructions before installing or operating the pump. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Assegureu-vos que la font d'alimentació coincideixi amb el volum de la bombatage (12 V CC).
- Desconnecteu l'alimentació abans de realitzar qualsevol manteniment o instal·lació.
- No feu funcionar la bomba amb líquids inflamables.
- Assegureu-vos que hi hagi una ventilació adequada al voltant de la bomba per evitar el sobreescalfament.
- Keep all electrical connections dry and protected from water exposure.
- Do not run the pump dry for extended periods, although it is designed for intermittent dry running.
- Always use appropriate hose clamps and sealants to prevent leaks.
3. Característiques del producte
- Construcció duradora: Made of high-strength cast iron with a powder-coated finish, providing waterproof and rust-proof properties for long-lasting use.
- Powerful Automatic Pressure Pump: Fully automatic self-priming pump designed for efficient water transfer.
- Protecció de seguretat: Features a built-in thermal protector and automatic pressure protection to prevent damage and ensure safe operation.
- Instal·lació ràpida: Compact, lightweight design with stable performance for easy and fast assembly.
- Integrated Metal Filter: Includes a metal filter that can be connected to the pump inlet for stable performance and protection against debris.
- Aplicació àmplia: Suitable for various uses including automotive marine/RV/caravans, agricultural spraying, general industrial tasks, and sprayer systems.

Figure 2: Durable Cast Iron Material

Figure 3: Thermal Protection Mechanism

Figure 4: Included Metal Filter
4. Especificacions
4.1. Model FL-40
| Atribut | Valor |
|---|---|
| Model | FL-40 |
| Voltage | 12 V, 9.2 A |
| Flux | 17 L/min |
| Mida d'entrada | 3/4" hose barb, thread |
| Mida de sortida | 3/4" hose barb, thread |
| Tipus | 3 Chamber Diaphragm |
| Autoimprimació | 6 feet (within 2M) |
| Entrada PSI | 40PSI (2.76Bar) Max |
| Run Dry | Sí |
| Pes net | 2.4 kg |

Figure 5: FL-40 Model Dimensions
4.2. Model FL-30
| Atribut | Valor |
|---|---|
| Model | FL-30 |
| Material | Ferro colat |
| Voltage | 12V DC |
| AMPS | 2.5 A |
| Flux obert | 2.7 GPM / 10 LPM |
| Tipus | 3 Chamber Diaphragm |
| Autoadaptació | 6 feet (within 2 m) |
| Configuració de la pressió | 17 PSI / 1.2 Bar |
| Mida del port | 3/4 Inch / 1.9 cm |
| Insert Size | 1/2 inch / 1.27 cm hose barb, thread |
| Mida de sortida | 1/2 inch / 1.27 cm hose barb, thread |
| Run Dry | Sí |
| Pes net | 5.3 lliures / 2.4 kg |
| Mida del producte | 8.7 x 3.8 x 3.8 polzades / 22.1 x 9.7 x 9.7 cm |
5. Contingut del paquet
Cada paquet inclou els articles següents:
- 1 x Diaphragm Water Pump (FL-30 or FL-40 model)
- 1 x filtre
- 3 x Fittings (hose barb, thread)

Figure 6: FL-40 Package Contents

Figure 7: FL-30 Package Contents
6. Configuració i instal·lació
Follow these steps for proper installation of your diaphragm water pump:
- Muntatge: Secure the pump using the stable brackets provided. Ensure it is mounted in a dry, well-ventilated area.
- Filter Connection: Connect the included metal filter to the water inlet connector of the pump. Ensure the filter is oriented correctly for water flow.
- Entrada d'aigua: Attach your water supply hose to the inlet side of the filter. Use appropriate hose barb fittings and secure with clamps per evitar fuites.
- Sortida d'aigua: Connect your output hose to the water outlet connector of the pump. Again, use appropriate fittings and clamps.
- Cablejat elèctric: Connect the pump wire to a 12V DC power source. Ensure correct polarity (red wire to positive, black wire to negative). It is recommended to install an inline fuse for protection.
- Comproveu les connexions: Double-check all hose connections and electrical wiring for tightness and correct installation before applying power.

Figure 8: Pump Components for Connection

Figure 9: Fast Assembly and Water Flow Direction
7. Funcionament
The VEVOR Diaphragm Water Pump is an automatic pressure pump designed for ease of use.
- Cebament: Due to its self-priming capability (up to 6 feet / 2 meters), the pump will draw water without manual priming, provided the inlet line is filled with water.
- Funcionament automàtic: The pump will automatically turn on when a demand for water is detected (e.g., opening a faucet or sprayer) and turn off when the demand ceases (e.g., closing the faucet or sprayer), maintaining system pressure.
- Ús continu: The pump is designed for intermittent duty cycle. Avoid continuous operation for prolonged periods without breaks to prevent overheating.
8. Manteniment
Un manteniment regular garanteix la longevitat i el rendiment òptim de la bomba.
- Neteja de filtres: Periodically inspect and clean the metal filter connected to the inlet. Debris can reduce flow and strain the pump.
- Comprovacions de connexió: Regularly check all hose connections and fittings for leaks. Tighten any loose connections.
- Inspecció elèctrica: Inspect electrical wiring for any signs of wear, corrosion, or damage.
- Hivernització (si escau): If operating in freezing temperatures, ensure the pump and lines are drained to prevent damage from ice expansion.
9. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| La bomba no s'encén | No power, incorrect wiring, blown fuse, faulty switch. | Check power supply, verify wiring, replace fuse, test switch. |
| Flux d'aigua baix o nul | Clogged filter, air in the system, kinked hose, low water source. | Clean filter, bleed air from lines, straighten hoses, ensure adequate water supply. |
| Pump runs continuously or cycles rapidly | Leak in the system, faulty pressure switch, air in the system. | Check all connections for leaks, inspect pressure switch, bleed air. |
| Excés de soroll o vibració | Loose mounting, debris in pump, cavitation (air in water). | Tighten mounting screws, inspect pump for foreign objects, ensure proper water supply. |
10. Consells d'usuari
- Voltage Compatibilitat: This pump is specifically designed for 12V DC systems. Do not attempt to operate it with a 24V power supply, as this will damage the unit.
- Funcionalitat automàtica: The pump is equipped with an automatic pressure switch, meaning it will activate when water demand is detected (e.g., opening a tap) and deactivate when the demand stops (e.g., closing a tap).
- Accessoris inclosos: The pump comes complete with a water filter and necessary hose connectors (fittings) for immediate installation.
- Dimensions: For the FL-30 model, the product dimensions are approximately 8.7 x 3.8 x 3.8 inches (22.1 x 9.7 x 9.7 cm). Refer to specifications for FL-40 dimensions.
11. Garantia i Suport
VEVOR stands by the quality of its products. This product includes:
- Devolucions gratuïtes: Gaudeix de devolucions gratuïtes en un termini de 90 dies des de la compra.
- Atenció al client: VEVOR offers 24/7 attentive customer service for any inquiries or support needs.
For further assistance, please contact VEVOR customer support through their official channels.





