Remco 5500 Series 3/4" QA Pump 4.0GPM 60PSI - 2629

Consistent Flow for Demanding Spraying and Fluid Transfer

The Remco Professional Grade 5500 Series pump is a robust 12-volt, 3-chamber positive displacement diaphragm pump designed for more demanding spraying and fluid transfer applications. It delivers up to 4.0 GPM (15.1 L/min) at open flow, maintaining a steady working flow typically around 3.5–4.0 GPM at its standard 60 PSI. This pump is perfect for larger ATV sprayers, skid sprayers, de-ice rigs, and utility vehicle setups where consistent output, chemical resistance, and self-priming capabilities are critical. When you need reliable performance in the field, the 5500 Series rises to the challenge.

Ideal for farmers, ranchers, turf and grounds care operators, municipal and fleet managers, as well as small industrial and washdown operations, this pump handles herbicides, water-based fertilizers, detergents, and general water transfer with chemical-resistant materials and up to 8 feet of self-priming lift. Mount the tank below the pump and enjoy dependable suction without manual priming. This pump defines dependable, professional-grade performance.

This page covers the essential details to help you decide if the Remco 5500 Series pump fits your needs: flow and pressure performance, chemical compatibility, construction materials, self-priming operation, motor design, pressure control options, installation, wiring, and maintenance. For those relying on a powerful 12V diaphragm pump, these details make the difference between smooth operation and costly downtime.

Why You'll Love the Remco 5500 Series Pump

These features reflect real-world feedback from users running the 5500 Series on trailers, ATVs, and truck-mounted rigs in tough conditions.

• Steady flow for consistent spray patterns – At 60 PSI, the pump sustains around 3.7 GPM throughout the spray cycle. This consistent output is vital for applying herbicides along fence lines or treating turf with precision. Flow remains stable without surges or drops as nozzles open and close.

• Compatible with a wide range of water-based fluids – Wetted materials include Santoprene diaphragms and Viton valves, rated for use with common agricultural herbicides, pesticides, liquid fertilizers, and light detergents. These materials resist chemical degradation that would quickly damage standard rubber seals.

• Self-priming with dry-run tolerance – The pump tolerates brief dry running without immediate damage, a practical benefit during tank changes or when air enters the suction line. Self-priming lift reaches 8 feet (2.4 m), allowing flexible tank placement.

• Sealed motor designed for outdoor use – Featuring a fully sealed motor, the pump resists moisture, dust, and vibration typical of trailers, ATVs, and truck beds. Zinc-plated hardware and corrosion-resistant wetted parts ensure durability in harsh environments.

• Operates on standard 12V vehicle systems – Typical current draw on the 4.0 GPM model at 60 PSI is around 11 Amps, compatible with ATV batteries and truck electrical systems. Available in 12 VDC, 24 VDC, and 110/120 VAC configurations for mobile and stationary use. Noise levels are low enough for residential and barn-adjacent applications.

What Makes the Remco 5500 Series Different

Competing 12V diaphragm pump products often use all-rubber seals that degrade rapidly under chemical exposure, with pressure switches failing early and check valves leaking. Advertised flow rates typically only apply at near-zero pressure. The Remco 5500 Series addresses these issues head-on.

• Santoprene diaphragms and Viton valves – Unlike cheaper pumps with generic rubber components, the 5500 Series uses Santoprene diaphragms paired with Viton valves to resist chemical attack from glyphosate-based herbicides, 2,4-D formulations, and alkaline fertilizers. Pump heads are molded from polypropylene or nylon for added chemical resistance.

• Adjustable factory-set pressure switch – Options include demand and bypass control configurations. Demand models automatically start and stop with trigger use; bypass models recirculate fluid at set pressure. Dual-control models combine both. The pressure switch is adjustable via set screw for precise shut-off tuning.

• Multiple head and seal options – The 5500 Series offers head and seal material combinations tailored to specific chemicals. Specialized configurations can reach pressures up to 200 PSI for applications requiring more force than the standard 60 PSI.

• Designed for easy installation and wiring – Ports include 3/4-inch Quick Attach fittings, matching plumbing on 15–100 gallon sprayer skids. Wire leads are 14 AWG at 6 or 12 inches, ready for direct connection to fused circuits without splicing.

How the Remco 5500 Series Pump Works

The 5500 is a positive-displacement, 3-chamber diaphragm pump. Three flexible diaphragms cycle sequentially, drawing fluid in through check valves on the intake stroke and pushing it out under pressure on the discharge stroke. Unlike impeller pumps, it moves a fixed volume per cycle regardless of back-pressure within its operating range.

1. Mount and connect the pump – Secure the pump to a stable surface, sprayer frame, or ATV rack. Connect the suction line from the tank through an inline strainer to the pump inlet. Attach the discharge line to your spray gun, boom, or hose reel using the 3/4-inch Quick Attach fittings.

2. Wire to a 12V power source – Connect the 14 AWG leads to a 12V battery or vehicle electrical system through a fused switch. For a model drawing 11 Amps at 60 PSI, use a 15 Amp fuse. Correct polarity is essential to avoid motor damage.

3. Prime and set pressure – Open the spray gun or downstream valve, then power the pump on. Fluid should reach the pump head quickly if the suction line is airtight and within the 8-foot priming range. Adjust the bypass valve or pressure regulator to your desired PSI, typically 40–60 PSI for spraying.

4. On-demand operation via pressure switch – Once primed, demand models cycle automatically. The pump starts when the trigger is pulled and stops when released, conserving battery power and reducing heat buildup.

Product Details: Remco 5500 Series Pump Specifications

• Flow and pressure – Maximum flow rate up to 4.0 GPM (15.1 L/min) at open flow. At 60 PSI, typical working flow ranges between 3.5 and 4.0 GPM. Factory presets commonly include 60 and 100 PSI, with specialized heads reaching up to 200 PSI.

• Voltage and power draw – Standard 12 VDC configuration. The 4.0 GPM / 60 PSI model draws approximately 11 Amps at operating pressure. 24 VDC and 110/120 VAC options are available for stationary or high-demand setups.

• Construction and materials – Polypropylene or nylon pump heads, Santoprene diaphragms, Viton check valves, zinc-plated hardware. Sealed DC motor rated to 180°F (82°C).

• Port sizes and connections – 3/4-inch Quick Attach inlet and outlet ports for easy integration with common sprayer plumbing.

• Priming and lift – Self-priming up to 8 feet (2.4 m). Best results achieved with short, properly sized suction lines and clean inline strainers.

• Included components – Pump assembly with motor, diaphragm head, valve housing, 14 AWG wire leads (6 or 12 inches), mounting base, and specific fittings per model.

• Operating limits – Maximum fluid temperature 140°F (60°C), motor shell temperature 180°F (82°C). Intermittent duty recommended. Not suitable for flammable liquids or potable water in most configurations.

Who the Remco 5500 Series Is For

• Farmers and ranchers – Spot spraying, boom spraying, and liquid fertilizer application from UTV or trailer-mounted tanks.

• Grounds and turf care professionals – Lawn care contractors, golf course maintenance, and landscape teams using boom or spot sprayers.

• Municipal and fleet operators – Roadside herbicide application, brine spraying, and equipment washdown.

• Small industrial and cleaning operations – Portable fluid transfer and washdown where 12V operation and chemical resistance are priorities.

Frequently Asked Questions About the Remco 5500 Series Pump

Can the 5500 Series handle herbicides and fertilizers? Yes, with Santoprene diaphragms and Viton valves standard on most models, it resists common agricultural chemicals. Always verify chemical compatibility with Remco’s data.

Is the pump self-priming? Yes, up to 8 feet on 4.0 GPM models, provided the suction line is airtight and fitted with an inline strainer.

Can it run dry? Brief dry-running is tolerated without immediate damage, useful during tank changes. Prolonged dry running will cause wear.

What power source is required? A standard 12V battery can supply the 11 Amp draw at 60 PSI. Use 14 AWG or heavier wiring and a fused circuit.

How do I maintain the pump? Flush with clean water after each use, clean or replace inline strainers, inspect wiring and fittings, and replace diaphragms and valves as needed.

Can I use it with flammable liquids? No, the pump is designed for water-based fluids only.

Upgrade to Professional Grade Reliability

The Remco Professional Grade 5500 Series 4.0 GPM, 60 PSI, On Demand, 12 VDC Sprayer Pump with 3/4" Quick Attach Ports offers the flow, pressure, chemical resistance, and reliable operation needed for efficient spraying and fluid transfer. Designed for tough field conditions and professional use, this pump is a dependable choice for ATV sprayers, skid units, and truck-mounted rigs. Select the right configuration for your chemicals, pressure needs, and power source to ensure long-lasting performance and reduced downtime.