The GRACO 651004 is a pneumatic (air-operated) double diaphragm pump designed for industrial fluid transfer. It features a stainless steel fluid section and an aluminum center section, making it suitable for handling a wide range of liquids including water, antifreeze, fuels, and oils. This pump is intended for reliable, leak-resistant transfer in demanding environments.

Key Features:

• Pneumatic (air-operated) double diaphragm pump
• Husky 1050, 1 in. (25.4 mm) NPT
• Stainless steel fluid section, aluminum center section
• 50 GPM (189 LPM) maximum free flow delivery
• 125 psi (8.6 bar, 0.86 MPa) maximum fluid working pressure
• Water, antifreeze, fuels, oils, detergents, hydraulic fluids, cutting oils, asphalt sealer, wastewater
• UL listed (for some models; confirm for 651004)
• Stall-free, low pulsation air valve for smooth operation
• One-piece center section for leak resistance and reduced maintenance
• Robust construction for industrial environments
• Handles solids up to 1/8 in. (3.2 mm) in size
• Maximum pump speed: 280 cycles per minute
• Maximum suction lift: 16 ft (4.9 m) dry, 29 ft (8.8 m) wet

Applications:
Industrial fluid transfer, including water, antifreeze, fuels, oils, detergents, hydraulic fluids, cutting oils, asphalt sealer, and wastewater. Suitable for mining, agriculture, manufacturing, and maintenance operations.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance. Non-genuine parts may compromise safety and efficiency.
• Ensure proper alignment and secure mounting of the pump
• Use appropriate thread sealant for NPT connections
• Check air supply for correct pressure and cleanliness
• Inspect diaphragms and seals regularly for wear and replace as needed
• Follow manufacturer guidelines for maintenance intervals