Description

The AR252 is an industry-standard, high-performance diaphragm pump designed for medium-pressure applications. Often referred to as the “Blue Pump,” it is prized for its compact size and incredible durability in the pest control and landscaping industries. This specific version is gear-driven, meaning it is designed to bolt directly onto a small gasoline engine (typically a 3/4″ shaft engine like the Honda GX120 or GX160).

Key Features & Performance

• Two-Diaphragm Semi-Hydraulic Design: Provides a smooth, balanced flow that is less taxing on the engine and plumbing components.

• Geardriven Configuration: Comes pre-assembled with a gearbox, allowing for a direct-drive setup that eliminates the need for belts and pulleys.

• Chemical Versatility: Equipped with Desmopan diaphragms as standard (though Viton options exist), making it highly resistant to aggressive pesticides, herbicides, and liquid fertilizers.

• Plastic-Coated Aluminum Heads: The internal fluid paths are protected against corrosion, ensuring a long lifespan even when used with harsh agricultural chemicals.

Technical Specifications

Why Choose the AR252-GR?

The “Gold Standard” for Pest Control: The AR252 is widely considered the most reliable pump for professional perimeter spraying. Its ability to hit 362 PSI means you can push chemical through hundreds of feet of hose reel and still have enough pressure for a high-reaching “stream” pattern at the gun.

Common Applications

• Pest Control Rigs: Mounted on trucks or trailers for residential and commercial spraying.

• Lawn Care: Ideal for liquid fertilization and weed control on medium-to-large turf areas.

• Agricultural Spot Spraying: Used on small boom sprayers for nurseries or specialty crops.

• Disinfecting: Large-scale application of sanitizers in poultry houses or greenhouses.

Setup & Maintenance

• Engine Compatibility: This geardriven model is designed for 4-stroke engines with a 3/4″ straight keyed shaft.

• Oil Requirements: The pump uses 30W Non-Detergent Oil. There is an oil reservoir (sight glass) on top; always ensure the oil is at the proper level to prevent diaphragm rupture.

• Pressure Regulator: This pump requires a pressure regulator (like the AR GRC25) to manage output and return excess fluid to the tank.

• Winterization: Always drain the pump or circulate RV antifreeze through the system if storing in freezing conditions to prevent the pump manifold from cracking.