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Compact 12V diaphragm water pump with black plastic body, silver motor housing, 1/2 inch ports and rubber mounting feet

VEVOR

VEVOR 12V Diaphragm Pump 3.5 GPM 50 PSI NMDP33-G35-50-12

SKU CH-B9ZF-T8FG2

A 12 V diaphragm pump delivering 3.5 GPM at 50 PSI with an adjustable 40 to 100 PSI switch, overheat protection and a quiet copper motor for RV or marine use

  • Product typeOther Appliances
  • Overall width6.5
  • High flow of 3.5 GPM at 50 PSI for strong water delivery
  • Adjustable 40 to 100 PSI switch activates pump on demand
  • Quiet copper motor with noise-reducing base minimises disruption
  • CE and ROHS certified with overheat and overload protection
  • Compact 8.15 x 5.43 x 4.92 in design fits tight spaces

12 V diaphragm pump for mobile use

The VEVOR NMDP33-G35-50-12 is a 12 V DC diaphragm pump built for mobile and off-grid water systems. It delivers up to 3.5 GPM (13.25 L/min) at 50 PSI and fits standard 1/2 inch MNPT fittings. The pump is designed for RV, marine, camper and food-truck installations where reliable pressure is needed.

Suits constant-pressure demand.

This unit suits users who want automatic on-demand pressure from 40 to 100 PSI without a separate accumulator tank. The three-chamber design and pressure switch start and stop the motor as taps open and close. Buyers who need continuous high-volume transfer or flows above 3.5 GPM should consider a different pump class.

104 W at 12 V DC sets wiring and battery needs

The pump draws 104 W from a 12 V supply, so cable gauge and fuse rating must handle the corresponding current. Overheat and overload protection are built in, and the switch is rated for 200000 cycles. Verify that your electrical system can sustain this load before purchase.

How it compares

Measured against everything we stock in Specialty Kitchen Gadgets, at today’s prices. Recalculated every night.

Price $45.99
Cheaper than about 70% of the 3,885 comparable items (median $66.99).

Specifications

Product
Product typeOther Appliances

Questions about this item

What 12 V power source must I already have to run the NMDP33-G35-50-12 pump?

You need a DC 12 V supply capable of at least 104 W; the pump draws that power directly from the 12 V system in your RV, boat or camper.

Will the 1/2'' MNPT ports on this pump connect to the 1/2'' fittings on my existing plumbing?

Yes — the inlet and outlet are 1/2'' MNPT with a 20.955 mm outer diameter, matching standard 1/2'' NPT plumbing used in most RV and marine installations.

How can I confirm the pump is operating correctly after installation?

Open a faucet and verify the pump starts automatically, delivers 3.5 GPM at 50 PSI, then shuts off when the faucet is closed; the pressure switch is tested to 200000 cycles.

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