The GRACO 651038 is a stainless steel (SS) air-operated double diaphragm pump with a 1-inch (25.4 mm) BSPT connection, featuring an aluminum center section, SP (Santoprene) seats, SP balls, and SP diaphragm. It is designed for reliable, leak-resistant transfer of a wide range of fluids in industrial applications.

Key Features:

• Air-operated double diaphragm pump
• Husky 1050, 1 in. (25.4 mm) BSPT
• Stainless steel (SS) fluid section, aluminum center section, SP (Santoprene) seats, SP balls, SP diaphragm
• Maximum free flow delivery: 50 gpm (189 lpm)
• Maximum fluid working pressure: 125 psi (8.6 bar, 0.86 MPa)
• Compatible with a wide range of fluids including fuels, oils, detergents, antifreeze, and water/wastewater
• UL listed
• Stall-free, low pulsation air valve for smooth and rapid changeover
• One-piece center section eliminates leaks and reduces maintenance
• Reliable, robust construction for industrial environments
• Handles solids up to 1/8 in. (3.2 mm) in size
• Maximum suction lift: 16 ft (4.9 m) dry, 29 ft (8.8 m) wet

Applications:
Industrial fluid transfer, including fuels, oils, detergents, antifreeze, hydraulic fluids, cutting oils, and water/wastewater transfer

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment.
• Ensure proper alignment and secure connections for all fluid and air lines
• Use appropriate thread sealant for leak-free installation
• Follow manufacturer-recommended maintenance schedules for diaphragms and seals
• Check for proper air supply and pressure before operation