The GRACO 655022 is a Husky 2150A-E air operated double diaphragm pump, constructed with an aluminum and ductile iron fluid section, designed for robust, efficient fluid transfer in demanding industrial environments. It is intended for use in applications requiring high flow rates and reliable, low-maintenance operation within GRACO equipment and compatible systems.

Key Features:

• Air Operated Double Diaphragm Pump
• Husky 2150A-E, 2 in (51 mm) ANSI
• Aluminum and ductile iron fluid section, epoxy-coated air section
• Up to 150 gpm (568 lpm)
• Up to 120 psi (8.4 bar, 0.84 MPa)
• Compatible with a wide range of fluids and industrial systems
• Stall-free low pulsation air valve for smooth, rapid changeover
• Up to 40% more efficient than comparable pumps
• Highest fluid flow rate in its class
• Up to 5 times longer diaphragm life
• Expanded material offering for diverse applications
• Fewer parts than industry peers; externally accessible air valve for easy servicing
• Lube-free operation
• Epoxy-coated air section for tough environmental conditions

Applications:
Ideal for industrial fluid transfer, including chemical processing, mining, agriculture, and other demanding environments requiring high flow rates and reliable, low-maintenance pumps.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety, and maintains warranty coverage.
• Ensure proper alignment of inlet and outlet connections
• Follow torque specifications for fasteners (e.g., 50–60 in-lb for valve cover screws)
• Use appropriate gaskets and seals for the intended fluid
• Regularly inspect and maintain the air valve and diaphragm for optimal performance
• Refer to the manual for specific lubrication and assembly instructions
• Regularly check for leaks and wear
• Keep the air section clean and free from debris
• Service the air valve externally without removing the pump from the system
• Replace diaphragms and seals as recommended