Double Diaphragm Pumps

Graco’s diaphragm pumps are designed for industrial and chemical transfer applications. Our chemical and industrial diaphragm pumps come in pneumatic and electric options, with many flow rates and sizes. Both metal and plastic housings can easily handle corrosive and abrasive fluids. All of our industrial diaphragm pumps are thoroughly tested before they leave our factories.

Reliable pneumatic and electric fluid transfer options

CUSTOMIZE YOUR PUMPS


SUPERIOR ENGINEERING, LONG-LASTING PERFORMANCE

Customizable Fluid Sections

Easily customize your fluid selections with Graco’s chemical transfer pumps with housings that can handle all fluids, including corrosives and abrasives.

Multiple Power Sources

Depending on your manufacturing needs, Graco’s double diaphragm pumps are available in both air and electric configurations. Each offers a similar range of features and benefits.

Proven Reliability

We design and build our double diaphragm pumps to hold in the harshest working environments. The best materials and the highest quality standards results in pumps that are built to last.

How does an air operated double diaphragm pump work?

An air operated diaphragm pump is a type of positive displacement pump that uses compressed air as a power source. The compressed air is shifted from one chamber to the other by a linked shaft that allows the chambers to move simultaneously. This back-and-forth motion, forces liquid out of one chamber and into the outlet manifold, while filling the opposite fluid chamber via the inlet manifold. Upon changeover, the fluid section that was filled on the previous shift empties into the outlet manifold and the fills the opposite chamber via the inlet manifold. The rapid changeover allows for reduced pulsation at the outlet.

How does an electric double diaphragm pump work?

The difference from an air-operated diaphragm pump is the center section of this pump as it uses an electric drive instead of compressed air. The center section of this pump is filled with pressurized air and is mechanically moved left/right by the motor so it pushes and pulls the diaphragm from left to right. This back-and-forth motion, forces liquid out of one chamber and into the outlet manifold, while filling the opposite fluid chamber via the inlet manifold. Upon changeover, the fluid section that was filled on the previous shift empties into the outlet manifold and the fills the opposite chamber via the inlet manifold. The smooth changeover allows for reduced pulsation at the outlet.

How to select an air or electric diaphragm pump?

The Graco diaphragm pumps come in a wide range of air operated and electric diaphragm pumps (ATEX models available). You can also choose from a extensive selection of materials to handle numerous applications, including corrosive and abrasive fluid transfer.

Not sure how to select your pump? Use our pump configuration tools to select the ideal pump for your application:

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ChemSafe1040 - image 2

Chemsafe 1040 Air Operated Double Diaphragm Pump

Graco's ChemSafe pumps feature PTFE or UHMWPE (ultra high molecular weight polyethylene) corrosion-resistant fluid paths, which make them ideal for corrosive and abrasive chemicals. There's no exposed metals and they can be configured in various materials to meet most abrasion, temperature, and chem...

ChemSafe1590 image 2

Chemsafe 1590 Air Operated Double Diaphragm Pump

Graco's ChemSafe pumps feature PTFE or UHMWPE (ultra high molecular weight polyethylene) corrosion-resistant fluid paths, which make them ideal for corrosive and abrasive chemicals. There's no exposed metals and they can be configured in various materials to meet most abrasion, temperature, and chem...

ChemSafe205 - image 2

Chemsafe 205 Air Operated Double Diaphragm Pump

Graco's ChemSafe pumps feature PTFE or UHMWPE (ultra high molecular weight polyethylene) corrosion-resistant fluid paths, which make them ideal for corrosive and abrasive chemicals. There's no exposed metals and they can be configured in various materials to meet most abrasion, temperature, and chem...

ChemSafe307 - image 2

Chemsafe 307 Air Operated Double Diaphragm Pump

Graco's ChemSafe pumps feature PTFE or UHMWPE (ultra high molecular weight polyethylene) corrosion-resistant fluid paths, which make them ideal for corrosive and abrasive chemicals. There's no exposed metals and they can be configured in various materials to meet most abrasion, temperature, and chem...

ChemSafe515 - image 2

Chemsafe 515 Air Operated Double Diaphragm Pump

Graco's ChemSafe pumps feature PTFE or UHMWPE (ultra high molecular weight polyethylene) corrosion-resistant fluid paths, which make them ideal for corrosive and abrasive chemicals. There's no exposed metals and they can be configured in various materials to meet most abrasion, temperature, and chem...

Husky 1050 - image 2

Husky 1050 Air Operated Double Diaphragm Pump

The Husky 1050 air-operated diaphragm pump features a stall-free low pulsation air valve which provides a smooth and rapid changeover.The one-piece center section eliminates leaks and reduces maintenance on Husky pumps when compared to other diaphragm pumps.

Husky 1050E - image 2

Husky 1050e Electric Double Diaphragm Pump

The Husky 1050e combine all of the benefits of a traditional air operated diaphragm pump like self-priming, stalling under pressure and increased diaphragm life with the benefits of an electric pump like energy cost savings, reduced pulsation and increased pump control.

Husky_15120 - image 2

Husky 15120 Air Operated Double Diaphragm Pump

The Husky 15120 air-operated double diaphragm pump features a stall-free low pulsation air valve which provides a smooth and rapid changeover.The one-piece center section eliminates leaks and reduces maintenance on Husky pumps when compared to other double diaphragm pumps.

Husky 1590 - image 2

Husky 1590 Air Operated Double Diaphragm Pump

The Husky 1590 air-operated diaphragm pump features a patented, high-reliability closed center air valve that is online serviceable and an epoxy-coated air section for tough environmental conditions.

Husky 205 - image 2

Husky 205 Air Operated Double Diaphragm Pump

The Husky 205 air-operated diaphragm pump features spring check valves for superior priming in any mounting configuration.

Husky 2150 - image 2

Husky 2150 Air Operated Double Diaphragm Pump

The Husky 2150 air operated diaphragm pump features a stall-free low pulsation air valve which provides a smooth and rapid changeover.

Husky_2200 - image 2

Husky 2200 Air Operated Double Diaphragm Pump

The Husky 2200 air-operated diaphragm pump features a single piece polypropylene center section for increased reliability and chemical compatibility, plus a patented, high-reliability modular air valve that is online serviceable. This diaphragm pump is designed with a reinforced frame for improved r...

Husky 307  - image 2

Husky 307 Air Operated Double Diaphragm Pump

The Husky 307 air-operated diaphragm pump features a stall-free low pulsation air valve that provides a smooth and rapid changeover.

Husky 3300 - image 2

Husky 3300 Air Operated Double Diaphragm Pump

The Husky 3300 air-operated diaphragm pump features a stall-free low pulsation air valve which provides a smooth and rapid changeover. The one-piece center section eliminates leaks and reduces maintenance on the Husky pumps when compared to other diaphragm pumps.

Husky 515 - image 2

Husky 515 Air Operated Double Diaphragm Pump

The Husky 515 air-operated double diaphragm pump features a stall-free low pulsation air valve which provides a smooth and rapid changeover.The bolt through fluid cover design eliminates leaks and makes the Husky safer with higher reliability.

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