Everflo 12V On-Demand Diaphragm Sprayer Pump — 1.0 GPM, 40 PSI, 3/8" Hose Barb, Self-Priming & Dry-Run Safe

Everflo's 12V on-demand diaphragm sprayer pump delivers up to 1.0 GPM at 40 PSI with self-priming, dry-run resilience, and energy-saving automatic shutoff for reliable mobile fluid transfer.

This compact battery-powered diaphragm pump is engineered for tough field and mobile applications where dependable water or chemical transfer matters. Built with a Honeywell micro switch, Viton valves, and a Santoprene diaphragm inside a fiberglass-reinforced polypropylene manifold, it combines corrosion resistance with long-life components. Standard 3/8" hose barb ports and the included worm-gear clamps make installation fast, and a CE-approved mounting pattern helps retrofit it into existing systems.

How quickly will this pump move liquid and what pressure can it maintain?

The Everflo 12V pump delivers up to 1.0 gallons per minute and a maximum pressure of 40 PSI, suitable for many agricultural spraying and transfer tasks. Its on-demand switching maintains steady pressure without continuous motor run time.

• Flow rate: 1.0 GPM at optimum conditions
• Maximum pressure: 40 PSI for consistent spray or transfer
• Automatic on-demand cycling prevents unnecessary motor wear

Can it prime itself and survive running dry?

Yes — the pump self-primes up to 4 feet, so you can pull liquid from shallow sources without manual priming. It is also designed to run dry without damage, making it forgiving for intermittent use or when tanks run low.

• Self-priming capability: up to 4 ft suction lift
• Dry-run safe design protects the diaphragm and valves
• Quick prime aided by low-resistance valve geometry

How does the pump save battery power and reduce component wear?

Everflo’s integrated pressure switch cycles the pump slowly when maintaining pressure and an automatic power switch cuts power when no flow is detected. This reduces motor on-time, cuts battery draw, and extends the service life of the switch and motor.

• Automatic shutoff when no flow is required
• Slow-cycling pressure switch for gentler starts and stops
• Rated max current draw: 4.0 amps for battery planning

What materials and fittings are used and how easy is installation?

The pump uses durable Viton valves and a Santoprene diaphragm inside a fiberglass-reinforced polypropylene manifold for chemical resistance and ruggedness. It mounts to a standard pattern for fast replacement or retrofit and includes two worm-gear hose clamps for secure 3/8" hose connections.

• Ports: 3/8" hose barb inlets and outlets
• Included hardware: two worm-gear hose clamps
• Temperature tolerance: handles fluids up to 140°F

Who is this for? Installers, farmers, mobile-detailers, and small-system integrators who need a compact, efficient pump for spot spraying, brine de-icing, light pressure washing, or water transfer will find the Everflo 12V diaphragm pump suited to those roles. Its combination of self-priming, dry-run safety, energy-saving switching, and chemical-resistant materials makes it a practical choice for mobile and compact systems where reliability and ease of installation matter. The unit is CE approved and backed by a two-year warranty on manufacturer defects, making it a low-risk upgrade when retrofitting or building small fluid-delivery setups.