The GRACO 650021 is a Husky 1050P-E air-operated double diaphragm pump, constructed with Buna (BN) balls and designed for industrial fluid transfer applications. It is engineered for reliable, low-maintenance operation in demanding environments.

Key Features:

• Pneumatic Diaphragm Pump
• Husky 1050P-E, 1-inch (nominal size)
• Polypropylene (P) body, Buna (BN) balls, modular air valve
• Maximum free flow delivery: 50 gpm (189 lpm)
• Maximum fluid working pressure: 125 psi (8.6 bar, 0.86 MPa)
• Industrial fluids, compatible with a wide range of chemicals and liquids
• UL listed (for some Husky 1050 models; confirm for 1050P-E)
• Stall-free low pulsation air valve for smooth operation
• Modular air valve for easy maintenance
• Reliable, robust construction for heavy-duty use
• Ease of maintenance and repair
• Handles solids up to 1/8 inch (3.2 mm)

Applications:
Industrial fluid transfer, chemical processing, wastewater, antifreeze, detergents, motor oil, hydraulic fluid, cutting oil, and water transfer

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump efficiency and longevity.
• Ensure proper alignment of pump and piping
• Use appropriate thread sealant for air and fluid connections
• Check for leaks after installation
• Follow manufacturer’s torque specifications for fasteners
• Regularly inspect diaphragms and balls for wear