The GRACO 657296 is a Husky 2150S-E air-operated double diaphragm pump, designed for robust and efficient fluid transfer in demanding industrial environments. It features a durable construction with aluminum and ductile iron fluid sections, and is intended for use in applications requiring high flow rates and reliable performance within GRACO equipment.

Key Features:

• Air-Operated Double Diaphragm Pump
• 2150S-E, A24CS1SSPTPTPT
• Aluminum and ductile iron fluid section, epoxy-coated air section
• Up to 150 gpm (568 lpm) for Husky 2150 series (specific to 2150S-E may vary; not explicitly specified for this exact configuration)
• Up to 120 psi (8.4 bar, 0.84 MPa) for Husky 2150 series (specific to 2150S-E may vary; not explicitly specified for this exact configuration)
• Designed for use with GRACO Husky 2150 series equipment and compatible with a wide range of industrial fluids
• Stall-free low pulsation air valve for smooth and rapid changeover
• Up to 40% more efficient than previous models
• Up to 5 times longer diaphragm life compared to other air-operated diaphragm pumps
• Fewer parts than industry peers; complete air valve is externally accessible for fast, easy servicing
• Lube-free operation
• Epoxy-coated air section for tough environmental conditions

Applications:
Ideal for industrial fluid transfer, including lubrication, chemical handling, and other demanding applications in mining, agriculture, and manufacturing.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with GRACO equipment.
• Ensure all air and fluid connections are secure and leak-free
• Follow torque specifications for flange bolts (typically 20–30 ft-lb or 27–41 N•m)
• Lubricate bolt threads before installation
• Use appropriate gaskets and washers as specified in the manual
• Refer to the tightening sequence and do not over-torque bolts
• Regularly inspect diaphragms and valves for wear
• Service the air valve externally without removing the pump
• Use only recommended replacement parts for repairs