Product Overview
This document provides detailed information for the VEVOR 12 Volt Potable Water Pump, specifically models NMDP42-G30-55-12 and NMDP42-G35-55-12. This heavy-duty, 4-chamber diaphragm pump is engineered for flexibility and provides high-volume water flow with reduced pump cycling. It features an on-demand switch, bypass function for reduced cycling, and can run dry.
Key Features
- 4-chamber diaphragm pump
- 5 min on, 10 min off operation
- Bypass function to reduce cycling
- Run dry capable for normal workloads
- Automatic operation controlled by pressure switch
- Industrial-standard mounting pattern
- Self-priming
- Quiet operation
- Ignition protected
Applications
- Yacht/RV/caravan pressurized water systems
- Sprayer fixtures (vehicle-mounted sprayers, electric sprayers)
- Cleaning machines, humidifiers, water purification, medical apparatus
- Food and beverage filling & liquid transfer
- Solar water systems
- Any other pressurization system
Specifications
| Property | NMDP42-G30-55-12 | NMDP42-G35-55-12 |
|---|---|---|
| Rated Voltage | 12V | 12V |
| Rated Pressure | 55 PSI | 55 PSI |
| Number of Chamber | 4 PCS | 4 PCS |
| Max. Flow | 3.0 GPM | 3.5 GPM |
| Inlet/Outlet Diameter | 1/2" MNPT | 1/2" MNPT |
Installation and Setup
Proper installation is crucial for optimal performance. Ensure correct wiring, secure mounting, and appropriate hose selection. Refer to the detailed setup instructions within the manual for guidance on plumbing, electrical connections, and switch installation. Always use a dedicated circuit and appropriate fuse protection.
Troubleshooting
The manual includes a troubleshooting section to address common issues such as pulsating flow, failure to prime, motor not turning on, pump failing to turn off, low flow and pressure, and noisy operation. Solutions are provided for each identified problem.
Bypass Valve and Pressure Switch Adjustment
Guidance is provided on adjusting the pump's shut-off pressure and bypass valve. It is recommended that these adjustments be performed by a professional technician using proper equipment to avoid improper operation or damage to the pump. Specific steps and cautions are outlined for these procedures.
Accessories Included
- Hose Adapter (2)
- Filter (1)
- Hexagon Bolt (1)
- Sealing Tape (1)
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