A Graco Husky double diaphragm pump is an air-operated, positive displacement pump designed to move fluids using two flexible diaphragms that reciprocate back and forth. These pumps are widely used in industrial environments where reliability, versatility, and the ability to handle difficult fluids are essential.

Often referred to as AODD (Air-Operated Double Diaphragm) pumps, the Husky range is known for its rugged construction, modular design, and ability to transfer a wide variety of liquids, from clean water to highly viscous or abrasive materials.

Key Features of Graco Husky Pumps

1. Durability and Reliability

Husky pumps are built with corrosion-resistant materials such as aluminium, stainless steel, polypropylene, or PVDF, making them suitable for harsh environments.

2. Wide Range of Sizes and Flow Rates

They are available in multiple sizes (¼″ to 3″ ports) with flow rates reaching up to 1,136 lpm (300 gpm) depending on the model.

3. Stall-Free Air Valve Design

A patented modular air valve ensures smooth operation with minimal pulsation and prevents stalling during operation.

4. Easy Maintenance

With fewer moving parts and externally serviceable air valves, Husky pumps are designed for quick servicing and reduced downtime.

5. Versatility in Materials

Users can choose from different diaphragm, seat, and ball materials to match specific chemicals, temperatures, or abrasiveness.

What Do Graco Husky Pumps Do?

A Graco Husky double diaphragm pump is primarily used for fluid transfer and handling. Its design allows it to:

• Transfer low to high viscosity fluids
• Pump abrasive slurries or fluids with solids
• Handle chemically aggressive liquids
• Operate safely in hazardous or explosive environments (ATEX options available)
• Provide a consistent and controlled flow

Best Applications for Husky Diaphragm Pumps

These pumps excel in applications where fluid properties are challenging or operating conditions are demanding:

1. Chemical Transfer

• Acids, alkalis, solvents
• Corrosive or hazardous chemicals

2. Paints, Coatings, and Inks

• High-viscosity coatings
• Pigmented or abrasive fluids

3. Oil and Lubricants

• Waste oil evacuation
• Fuel and lubrication systems

4. Wastewater and Sludge Handling

• Slurries with suspended solids
• Industrial wastewater systems

5. Food and Beverage (with suitable materials)

• Syrups, sauces, and viscous food products

6. Mining and Construction

• Mud, slurry, and abrasive mixtures

Industries That Benefit from Husky Pumps

Because of their versatility, Husky diaphragm pumps are used across a wide range of industries:

Manufacturing and Processing

Used for transferring raw materials, chemicals, and by-products in production lines.

Chemical and Petrochemical

Ideal for safely handling aggressive and hazardous fluids.

Automotive and Maintenance

Commonly used for oil transfer, waste oil evacuation, and lubrication systems.

Paint and Coatings Industry

Widely used for spray systems, paint circulation, and coating transfer.

Water Treatment and Environmental Services

Effective in pumping sludge, wastewater, and treatment chemicals.

Food and Pharmaceutical

Graco offer a full sanitary range, that can handle viscous or sensitive fluids.

Why Choose a Double Diaphragm Pump?

Compared to other pump types (like centrifugal pumps), AODD pumps like the Husky offer:

• Self-priming capability
• Ability to run dry (although not advised continuously)
• Ability to handle solids and thick fluids
• Explosion-proof operation (ATEX models available)
• Low shear pumping (important for delicate fluids)

These advantages make them particularly valuable in industrial, hazardous, or variable-flow environments.

Graco Husky Double Diaphragm Pump

The Graco Husky double diaphragm pump is a highly versatile, air-powered solution for demanding fluid transfer applications. Its ability to handle everything from thin liquids to thick, abrasive, or chemically aggressive materials makes it a top choice across a wide range of different industries.

Whether in chemical processing, manufacturing, automotive service, or wastewater treatment, Husky pumps provide a durable, low-maintenance, and adaptable pumping solution that performs reliably where many other pump types fall short.