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VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine
VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine
VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine
VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine
VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine
VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine
VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine
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VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine
VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine
VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine
VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine
VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine
VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine
VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine
VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine
VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine
VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine
VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine
VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine

VEVOR 12V Diaphragm Pump, 3 GPM (11.36 L/min), 4-Chamber 12 Volt DC Water Pump with Automatic Pressure Switch 2.7-6.9 bar(40-100 PSI) Adjustable, 3.8 bar(55 PSI), 12.7mm(1/2") MNPT Port, for RV Yacht Food Truck Camper Marine

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Features & Details

  • Say Goodbye to Low Water Pressure: Upgrade to our 4-chamber 12V water pump delivering a high flow rate of 3.0 GPM (11.36 L/min) at a steady 55 PSI. It's designed to meet all your daily water needs efficiently and reliably, saving you valuable time.
  • Automatic Pressure Switch: Customize your water pressure with an adjustable range from 40 to 100 PSI. The on-demand pressure switch automatically starts the pump when you open the faucet and stops it when you close it. Tested over 200,000 times for durability, it's built to last.
  • Ultra-Quiet Operation: Our 12V diaphragm pump features a pure copper motor for smooth and quiet performance. The plastic pump body and noise-reducing base effectively minimize sound, so it won't disrupt your work or sleep.
  • Security You Can Trust: Certified by CE and ROHS. This 12V water pump includes overheat and overload protection to extend its lifespan. Plus, it supports dry running and has a built-in check valve bypass switch to ensure uninterrupted water supply even if the pump or check valve fails.
  • Standard Size, Easy Replacement: Our 12V diaphragm pump is equipped with standard 1/2" MNPT inlet and outlet, replacing your existing pump is a breeze. Ideal for use in RVs, boats, campers, food trucks, and more, it brings convenience to your lifestyle.

Product specification

  • Item Model Number NMDP42-G30-55-12
  • Voltage DC 12V
  • Power 90W
  • Max Pressure 55 PSI
  • Max Flow Rate 3.0 GPM / 11.36 L/min
  • Inlet/Outlet Diameter 1/2'' MNPT (O.D. 20.955 mm)

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Reviews 4.4
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Average rating based on 457 reviews

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About this item

Product specification
Item Model Number
NMDP42-G30-55-12
Voltage
DC 12V
Power
90W
Max Pressure
55 PSI
Max Flow Rate
3.0 GPM / 11.36 L/min
Inlet/Outlet Diameter
1/2'' MNPT (O.D. 20.955 mm)
Net Weight
4.41 lbs / 2.0 kg
Product Dimensions
8.27 x 5.04 x 4.33 in / 210 x 128 x 110 mm
Description
12V Potable Water Pump, 3.0 GPM High Flow Rate
This 12V diaphragm pump delivers an impressive 3.0 GPM (11.36 L/min) flow rate and a 55 PSI preset pressure, ensuring efficient and reliable water supply. It features 40 to 100 PSI adjustable pressure, a pure copper motor, and a standard 1/2" MNPT port. Elevate your water system today!
Customize your water pressure effortlessly with our 12V diaphragm pump. Just open the pressure switch with a screwdriver, find the center screw hole, and turn clockwise to increase pressure or counterclockwise to decrease it. Tailor your water usage to fit your needs and save water efficiently.
Our 12V water pump with pressure switch features a high-quality motor paired with a plastic pump body, effectively reducing noise. The anti-vibration base and cushion design further minimize sound, providing a quiet and efficient water pumping solution for a peaceful environment.
Both the inlet and outlet feature standard 1/2" MNPT interfaces, our 12 volt water pump with pressure switch ensuring compatibility with your existing pump. Replacement and installation are quick and hassle-free.
Our 12V RV water pump effortlessly meets all your water needs—from washing and showering to toilet and kitchen use. Enjoy your RV life to the fullest with a pump that supports you every step of the way.

VEVOR 12V Diaphragm Pump with 3GPM / 11.36 L/min Flow Rate

This 12V diaphragm pump can move 3 gallons per minute (11.36 L/min) of water, which is useful for most applications. The pump keeps a steady flow no matter how you use it to fill sinks, showers, or tanks. This helps your water system run smoothly. No matter if you use it in an RV, a boat, a campsite, or a mobile office, you can trust that it will quickly deliver water through many outlets. Because it can handle so much at once, it lowers wait times and lets you get things done quickly and easily.


This pump makes your water system easier to use and gives you more control over it. You won't have to worry about pressure drops or breaks with its dependable flow. This means you can work confidently, even with bigger water tanks or several connected devices. The pump works well, so you don't have to keep an eye on your daily water needs. This helps you stay calm while everything continues to work. 


12V Diaphragm Pump 4-Chamber Design for Stable Water Pressure at 55 PSI

The VEVOR 12V diaphragm pump has four chambers that maintain a water pressure of 55 PSI, ensuring a steady flow. This method keeps water pressure constant, with no spikes or drops, whether you're filling tanks, running several faucets, or using showers and appliances simultaneously.


Along with constant pressure, the multi-chamber method lowers vibration and reduces stress on the pump's inside parts. This makes your pump more durable and long-lasting, so it can reliably operate for extended periods. The 12V diaphragm pump keeps your water system running smoothly, maintaining a steady flow and protecting critical components. This makes it easier and more convenient to do water-related jobs every day, whether you're at home, on the road, or on a boat.


Automatic Pressure Switch with Adjustable 40–100 PSI Range

The VEVOR 12V diaphragm pump has an automatic pressure switch that turns on the pump when you open a tap and turns it off right away when you close it. With this handy feature, you can get water when you need it without having to turn the pump on or off yourself. You can set the water pressure anywhere between 40 and 100 PSI. This lets you customize it for different jobs, from gentle flows for sensitive applications to higher pressure for more demanding operations.


The pressure switch automatically powers the pump, saving energy and preventing damage, helping it last longer. This switch has been tested for durability, withstanding 200,000 cycles, so you can trust your water system to work well even when used frequently.


Ultra-Quiet Operation with Pure Copper Motor and Noise-Reducing Base

The VEVOR 12V diaphragm pump's pure-copper motor and noise-reducing base help keep it quiet. This lets you run the pump without making much noise, which is perfect for living areas, RVs, or boats where quiet is essential.


A smooth motor and a base that absorbs vibration work together to keep things quiet and efficient. You can use the pump most of the time without bothering others, and the motor is designed for long-lasting performance with minimal upkeep.


Certified CE & ROHS with Built-In Overheat and Overload Protection

This 12V diaphragm pump is designed to be safe and reliable. It meets global safety and environmental standards because it is CE and RoHS certified. The pump also features overheat and overload protection, helping prevent damage and extend its lifespan.


You can trust that your water system is safe from electrical or mechanical issues thanks to these safety features and certifications. You can feel more confident using the pump because it is built to handle tough situations. This makes it a good choice for both home and work use.


Dry Running Support with Built-In Check Valve Bypass Switch

The 12V diaphragm pump can run dry, so it can be used safely without water. If there is a problem with the valve or pump, its built-in escape switch keeps the water flowing.


This feature prevents damage to the pump when there is no water, giving you more peace of mind and safety. You can keep using your system safely, make sure there's always water available, and avoid unexpected breaks during important jobs.


Standard 1/2" MNPT Inlet and Outlet for Easy Replacement and Installation

The pump has standard ½-inch MNPT inlet and outlet fittings, so it is easy to install or replace. You don't need any special tools or adapters to connect it to existing plumbing or water systems, as it can be easily plumbed in.


With its standard size, the VEVOR 12V diaphragm pump can be easily and quickly installed into RVs, boats, campsites, or other systems. You can easily repair an old pump or upgrade your system, making your life easier and improving how the system works.


Product guides and documents
User manual-en (PDF) Review

Questions and Answers (4)

in the boiler can be max pressure 2.8 bar, is this pump suitable?
Yes, but the flow rate will be relatively low at 2.8 bar. If this answer does not resolve your current issue, please contact us again for assistance.
By vevor
Helpful ( 0 )
Pumpun imukorkeus ?
1,8 metros.
By vevor
Helpful ( 0 )
It says that the pump has 55psi and 3GPM, so does that mean that it can deliver 3GPM at a pressure of 55psi, or does that mean it can either deliver 3GPM at a lower pressure or 55psi at a lower GPM ?
55 psi: that’s the pressure switch cut‑off. When system pressure reaches ~55 psi, the switch turns the pump off. 3 GPM: that’s the open‑flow (low back‑pressure) rate. It’s the max flow with minimal restriction. As back‑pressure rises (smaller nozzles, longer/higher piping), flow drops along the pump’s performance curve. Near 55 psi the flow will be close to zero, and the switch will shut the pump off.
By vevor
Helpful ( 0 )
Pana la ce inaltime poate ridica apa?
Nivelul apei poate crește până la aproximativ 1,6 metri.
By vevor
Helpful ( 0 )
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