The GRACO 650283 is an air-operated double diaphragm pump constructed primarily from polypropylene, with a stainless steel center section and seats, and Santoprene balls and diaphragm. It is designed for reliable, low-maintenance fluid transfer in industrial applications, especially where chemical compatibility and durability are required.

Key Features:

• Air-operated double diaphragm pump
• Husky 1050, 1-inch nominal size
• Polypropylene (wetted parts), stainless steel center section and seats, Santoprene balls and diaphragm
• Maximum free-flow delivery: 189 L/min (50 gpm)
• Maximum fluid working pressure: 125 psi (8.6 bar, 0.86 MPa)
• Designed for use with a wide range of industrial fluids, especially those requiring chemical resistance
• UL listed (for some models; confirm for 650283)
• Stall-free, low pulsation air valve for smooth operation
• Modular air valve for easy maintenance
• End flange configuration for flexible installation
• Reliable, low-maintenance design
• Suitable for handling solids up to 3.2 mm (1/8 in)

Applications:
Ideal for transferring chemicals, solvents, and abrasive or viscous fluids in industrial, mining, and agricultural settings. Suitable for applications requiring chemical resistance and robust construction.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and longevity of the pump.
• Ensure proper alignment and secure mounting of the pump
• Use compatible piping and fittings for the intended fluid
• Follow all safety instructions in the manual
• Regularly inspect and maintain the pump for best performance
• Check and replace diaphragms, balls, and seats as needed
• Inspect for leaks and wear
• Keep air supply clean and dry
• Follow manufacturer-recommended service intervals