Remco 3300 Series 3/4" QA Sprayer Pump 2.2GPM 60PSI - 2626

Consistent Flow for Sprayers, Wash down, and Fluid Transfer

The Remco 3300 Series pump is a 12-volt, 3-chamber positive displacement diaphragm pump built for agricultural chemical spraying and fluid transfer. It delivers up to 2.2 GPM (8.3 L/min) at open flow, with working flow typically around 1.4–1.6 GPM at its standard 60 PSI, making it a practical fit for ATV sprayers, skid sprayers, de-ice rigs, and utility vehicle setups where consistent output, chemical resistance, and self-priming matter more than raw volume.

If you’re a farmer, rancher, turf or grounds care operator, municipal or fleet manager, or running a small industrial, washdown, or cleaning setup, this is the kind of pump spec that affects day-to-day reliability. The 3300 Series is designed to handle herbicides, water-based fertilizers, detergents, and general water transfer with chemical-resistant materials and up to 8 feet of self-priming lift, so you can mount the tank below the pump and still get dependable suction without manually filling the line.

This page focuses on the details that usually decide whether the Remco 3300 Series pump is the right choice: flow and pressure performance, chemical compatibility, construction materials, self-priming operation, motor design, pressure control options, installation, wiring, and maintenance. For applications that depend on a reliable 12V diaphragm pump, those details are what keep spraying and fluid transfer efficient instead of turning into downtime.

Why You'll Love the Remco 3300 Series Pump

These benefits reflect what actual field users report after running the 3300 Series on trailers, ATVs, and truck-mounted rigs.

• Steady flow that keeps spray patterns consistent – At 60 PSI, the pump holds around 1.45 GPM through the spray cycle. That predictability matters when you're applying herbicide along fence lines or treating turf at a calibrated rate; the flow doesn't surge or drop as nozzles open and close.

• Handles a broad range of water-based fluids – Wetted materials include Santoprene diaphragms and Viton valves, both rated for contact with common agricultural herbicides, pesticides, liquid fertilizers, and light detergents. The construction materials support compatibility with a variety of aggressive fluids that would degrade standard rubber seals within weeks.

• Self-priming and tolerant of brief dry running – The pump can run dry without sustaining immediate damage, which is a practical advantage during tank changeovers or when the suction line catches air. Self-priming lift reaches 8 feet (2.4 m) on the 2.2 GPM models, so tank positioning is flexible.

• Sealed motor built for field conditions – The pump features a completely sealed motor design that resists the moisture, dust, and vibration common on trailers, ATVs, and truck beds. Zinc-plated hardware and corrosion-resistant wetted parts hold up in outdoor environments where pumps sit exposed to weather between uses.

• Runs from standard 12V vehicle systems – Current draw on a typical 2.2 GPM model at 60 PSI sits around 7.0 Amps, well within the capacity of ATV batteries and truck electrical systems. The pumps are available in 12 VDC, 24 VDC, and 110/120 VAC configurations, covering mobile and stationary setups alike. Noise stays low enough for residential and barn-adjacent work.

What Makes the Remco 3300 Series Different

Generic 12V diaphragm pumps in this price range often use all-rubber seals that degrade after a few months of chemical exposure. Pressure switches fail early, check valves leak, and advertised flow numbers only hold at near-zero pressure. The Remco 3300 addresses each of those weak points.

• Santoprene and Viton wetted materials – Where budget pumps use generic rubber for both diaphragms and valves, the 3300 Series pairs Santoprene diaphragms with Viton valves. That combination resists the chemical attack from glyphosate-based herbicides, 2,4-D formulations, and alkaline fertilizers that eat through cheaper materials. Pump heads are molded from polypropylene or nylon, adding another layer of chemical resistance.

• Factory-set pressure switch with adjustable shut-off – The pump includes options for both demand and bypass control configurations. Demand models start and stop automatically when you pull or release the spray trigger. Bypass models recirculate fluid back to the tank at set pressure. Dual-control variants combine both functions. The pressure switch is adjustable via set screw, so you can fine-tune the shut-off point rather than accepting a fixed factory setting.

• Multiple head and seal configurations for different chemicals – Instead of a one-size-fits-all design, the 3300 Series offers head/seal material combinations tailored to what you're spraying. Pressure range for specialized configurations can reach up to 200 PSI for applications that need more force than the standard 60 PSI preset.

• Mounting and wiring designed for common sprayer frames – Port options include 3/4-inch Quick Attach fittings or 3/8-inch female NPT, matching the plumbing on 15–100 gallon sprayer skids. Wire leads are 14 AWG at 6 or 12 inches, ready to tie into a fused circuit without splicing down to a thinner gauge.

How the Remco 3300 Series Pump Works

The 3300 is a positive-displacement, 3-chamber diaphragm pump. Three flexible diaphragms cycle in sequence, pulling fluid in through check valves on the intake stroke and pushing it out under pressure on the discharge stroke. No impeller, no centrifugal action; the pump 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 rigid plate, sprayer frame, or ATV rack. Run a suction line from the tank through an inline strainer to the pump inlet. Connect the discharge line to your spray gun, boom, or hose reel using the appropriate Quick Attach or NPT fitting.

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 7.0 Amps at 60 PSI, a 7.5–10 Amp fuse is appropriate. Observe polarity; reversed wiring will not run the motor. Keep wire runs short and connections tight to prevent voltage drop, which reduces motor torque and increases current draw.

3. Prime and set operating pressure – Open the spray gun or downstream valve, then power on the pump. Fluid should reach the pump head within seconds if the suction line is airtight and the lift is within the 8-foot priming range. Adjust the bypass valve or pressure regulator to your target PSI. Most users run at 40–60 PSI for boom spraying and spot spraying.

4. On-demand operation via pressure switch – Once primed, demand-configured models cycle automatically: the pump starts when you pull the trigger (pressure drops) and stops when you release it (pressure builds to the switch setting). This conserves battery power and reduces heat buildup during intermittent spraying.

Product Details: Remco 3300 Series Pump Specifications

• Flow and pressure – Maximum flow rate of the pump is up to 2.2 GPM (8.3 L/min) at open flow. At the standard operating pressure of 60 PSI, usable flow on the 2.2 GPM models drops to approximately 1.45 GPM. Common factory presets include 60 and 100 PSI; specialized heads reach 150–200 PSI.

• Voltage and power draw – 12 VDC is the most common configuration. A 2.2 GPM / 60 PSI model draws approximately 2.65 Amps at 0 PSI and 7.0 Amps at 60 PSI. Lower-flow models (e.g., the 3321-2E3-82B) draw up to 6.5 Amps at 60 PSI. 24 VDC and 110/120 VAC options are available for stationary or higher-demand installations.

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

• Port sizes and connections – 3/4-inch Quick Attach or 3/8-inch female NPT, depending on model. Both formats integrate with standard agricultural sprayer hose and boom kits without adapters.

• Priming and lift – Self-priming to 8 feet (2.4 m) on 2.2 GPM models; approximately 6 feet (1.9 m) on lower-flow variants. Best results come from short, properly sized suction lines with a clean inline strainer.

• What's included – Pump assembly with motor, diaphragm head, and valve housing. 14 AWG wire leads (6- or 12-inch). Mounting base. Specific fittings vary by model number.

• Operating limits – Maximum fluid temperature: 140°F (60°C). Maximum motor shell temperature: 180°F (82°C). Intermittent duty; continuous run without pauses is not recommended. Not rated for flammable liquids, petroleum products, or potable water in most configurations.

Who the Remco 3300 Series Is For

• Farmers and ranchers – Spot spraying weeds along fence lines, applying liquid fertilizer from a UTV-mounted tank, managing pasture with boom or boomless nozzles, and washing down livestock facilities. The 12V operation and chemical-compatible seals fit the workflow of operators who spray different products across seasons.

• Grounds and turf care professionals – Lawn treatment contractors, golf course maintenance crews, and landscape teams running turf sprayers and de-icer rigs. The demand-control pressure switch lets operators work gun-in-hand without someone at the pump.

• Municipal and fleet operators – Roadside herbicide programs, brine application for winter roads, and equipment washdown on service trucks. The sealed motor and corrosion-resistant construction handle the daily use and outdoor exposure these applications demand.

• Small industrial and cleaning operations – Light-duty washdown, chemical transfer, and equipment rinsing where a compact 12V diaphragm pump is more practical than running power lines. Diaphragm pumps typically have flow rates up to 7.0 GPM in larger series; the 3300's 2.2 GPM fits jobs where portability and battery operation outweigh high volume.

Frequently Asked Questions About the Remco 3300 Series Pump

Can the 3300 Series handle herbicides and fertilizers? Yes, when configured with Santoprene diaphragms and Viton valves, which are standard on most models. These materials resist degradation from glyphosate, 2,4-D, and common liquid fertilizer formulations. Always check chemical compatibility with Remco's published data before running concentrated acids, solvent-based products, or anything outside standard water-based ag chemicals.

Is the pump truly self-priming? The 3300 Series will self-prime within its rated lift distance of 8 feet on 2.2 GPM models. Performance depends on an airtight suction path; even a small air leak at a hose clamp or fitting will prevent priming. Use a short, properly sized suction line with a clean inline strainer for best results.

Can it run dry? The pump tolerates brief dry-running incidents without immediate damage, which is useful during tank changeovers. Prolonged dry operation heats and degrades diaphragms, valves, and seals. It also pulls air into the system, reducing effectiveness once fluid is reintroduced.

What power source do I need? A standard 12V battery on an ATV, UTV, or trailer handles the typical 7.0 Amp draw at 60 PSI. Use 14 AWG or heavier wire, keep runs short, and fuse the circuit just above the pump's maximum rated amperage. Voltage drop from undersized wiring or corroded connections reduces motor torque and accelerates wear.

How do I maintain the 3300 Series pump? Flush the pump with clean water after every chemical use. Clean or replace the inline strainer regularly. Inspect wiring connections for corrosion and tightness. Check hose clamps and fittings for leaks. Diaphragms and valves are wear items; replace them when you notice pressure loss or pulsation after extended service.

Can I use it with flammable liquids? No. The 3300 Series is designed for water-based fluids only. Gasoline, diesel, solvents, and other flammable or petroleum-based liquids are not compatible with the pump's motor, seals, or housing materials.

Upgrade Your 12V Sprayer Pump

The Remco 3300 Series delivers 2.2 GPM open flow, operates at a standard 60 PSI (with configurations up to 200 PSI), and uses Santoprene/Viton wetted materials that hold up against the chemicals most generic pumps can't tolerate. The sealed 12V motor, self-priming design, and demand or bypass control options make it a direct fit for ATV sprayers, skid units, and truck-mounted rigs.

Match the correct 3300 configuration to your application: choose the right seal materials for your chemicals, the right pressure switch type for your spray method, and the right voltage for your power source. That selection process is what separates a pump that lasts multiple seasons from one that fails mid-job.