John Blue

Agricultural and Industrial Pump Products and Systems

Since 1886, farmers have counted on John Blue agricultural pumps for accuracy, reliability, serviceability, and value. That legacy continues today. Our ag pump products are born of skilled engineering, quality materials, and good ol’ American craftsmanship. Innovation is inherent in all of our precision application systems and irrigation-fertigation pump products and accessories. Our products are built to consistently exceed your expectations. We know legacies aren’t found in words. Legacies are proven in the field with equipment that’s guaranteed to do the job.

Centrifugal Pumps

• Gas Engine Poly Pumps
• Gas Engine Cast Pumps
• Gas Engine Cast Spray Pump
• Electric Motor Driven Pumps

Self-Priming, Vac-U-Seal Poly-Centrifugal Pumps are Efficient, Versatile, and Built to Last.

If you need a centrifugal pump that’s portable, durable, and affordable, this new lightweight poly-pump family is just what you need.

• Convenient carry handles allowing clearance for discharge elbow installation.
• Vac-U-Seal impeller design creates a vacuum between the impeller and seal. Lack of pressure on the seal face minimizes seal wear resulting in longer seal life.
• Innovative bearing support system minimizes shaft bending and thrust loads.
• No shaft clamp required.
• Universal mounting platform accommodates both gas engines and electric motors.
• Revolutionary hybrid impeller design eliminates problematic weld joints.
• Screw-in flange fittings are standard on -FLG models, and optional on all other models.

2" Poly Pumps

Repair items for every 2" poly pump are the 116403-91 seal kit and the 116871-01 impeller.

3" Poly Pumps

Repair items for every 3" poly pump are the 116525-91 seal kit and the 116873-01 impeller.

Agricultural and Industrial Liquid Transfer Pump Applications

Run Our Centrifugal Transfer Pumps Dry and They Still Keep Working – No More Down Time

2-Year Unconditional Warranty on Our Cast-Iron Transfer Pumps! All John Blue Centrifugal Transfer Pumps can run dry without damaging the seal. This, combined with a two-year factory-backed UNCONDITIONAL WARRANTY on cast-iron transfer models, makes the John Blue Centrifugal Transfer Pumps second to no other pump manufacturer on the market today, all at an affordable price. Our centrifugal pumps are available with gas, electric, or hydraulic power sources.

• Wet seal technology creates longer lasting seals, and the pump can run dry without damage or failure.
• Extra thick cast walls add strength and extend the life of the pump against abrasion and corrosion.
• The closed impeller design minimizes thrust loading on the motor, extending the life of the motor and keeping the impeller performing as it wears.

2" Cast Pumps

Repair items for every 2" cast pump are the 116249 seal kit and the 102041-A impeller.

3" Cast Pumps

Repair items for every 3" cast pump are the 116248 seal kit and the 116227-01 impeller.

Cast-iron pumps carry a 2-year unconditional warranty.

Vac-U-Seal 1-1/2” x 1-1/4” Centrifugal Spray Pump

No pump assembly required to install or remove from gasoline engine.

• Now available in Stainless Steel!
• 5/8″ or 3/4″ shafts available on gas engine models
• Required HP: 5 HP
• 142 GPM max flow @ 3600 RPM
• 105 PSI max pressure @ 3600 RPM
• 1-1/2″ FPT and 220 Flanged Outlet
• 1-1/4″ FPT and 200 Flanged Outlet
• 135 GPM at 25 PSI
• Double Wet Seal Technology
• Vac-U-Seal Impeller
• Fits Honda GX 160, Honda GX 200, & Briggs Pro Engines
• Fully Assembled from Factory

Centrifugal Pumps Coupled to Electric Motors

• Patented Vac-U-Seal impeller design creates a vacuum between the impeller and mechanical seal. Lack of pressure on the seal face minimizes seal wear and results in a longer seal life.
• Double wet seal design provides for continuous lubrication of the seal faces. This wet seal design allows the pump to be run dry for extended periods with no damage to the mechanical seal faces.
• Closed impeller design minimizes thrust loading on the drive motor extending the life of the drive motor. Impeller wear actually increases performance.
• Extra thick cast walls provide extra strength and extend the life of the unit due to abrasion and corrosion.

Ground Drive Piston Pumps

When it comes to ag metering pumps and injection pumps for agricultural fertilizers and chemicals, John Blue’s Next Generation Piston Pump (NGP) will redefine your precision application expectations.

John Blue’s ground-driven and hydraulic-driven variable rate piston pumps have a reputation and history built on superior performance, serviceability and overall quality.

All John Blue Ag Piston Pumps have been designed, engineered, and extensively field tested to set the standard for liquid metering pumps. Click Here to calculate your pump and sprocket ratio!

Piston Pump Features:

• NEW Inlet & Outlet Flanges make it easier to plumb your piston pump system and eliminate leaks with flange fittings. (Add -F after model number).
• Double Piston Rod Seals work in unison to offer multiple stage protection between the wet end and crankcase.
• Outboard Cylinder Plunger Packing can be inspected or replaced in the field without removing the hoses.
• Check Valves are designed for positive seal, easy priming, and long life.
• Single Valve Cap provides easy access to check valves without removing the hoses. Simple to service in the field.
• Common or Independent Manifolds are available on the double piston pumps. Independent manifolds allow for dual flow divider usage or half width fertilizer application.
• Main Shaft Seals incorporate a dual wiper that is enclosed in a grease cavity to flush out contamination. This helps to extend the life of the metering pump.
• NEW Direct Hydraulic Drive Piston Pumps now available along with standard Ground Drive (DRV) and Variable Rate Hydraulic Drive Kits (VRH).

12-Volt Speed Rate Controller

The John Blue 12-Volt Controller is available in 15 and 35 amp models. A stainless steel ammonia pressure gauge is available as an option with or without a plumbing kit. The 35 amp is also available with a digital display, which keeps pressurized fertilizers or chemicals out of the cab of the tractor. The remote stainless steel sensor has a 1/4″ NPT male fitting and uses a 20 foot wiring harness. The 35 amp control comes standard with run/ hold feature, which can be wired to your implement lift switch using a whisker or proximity switch.

Flow Dividers