The GRACO 650281 is a Husky 1050 series air-operated double diaphragm pump constructed primarily from polypropylene, with stainless steel center section, seats, and balls, and PTFE/Santoprene diaphragms. It is designed for reliable, low-maintenance fluid transfer in industrial applications, including handling water, antifreeze, and fuel. The specified model includes a 120V compressor and BLDC motor, and features an end flange configuration.

Key Features:

• Air-operated double diaphragm pump
• Husky 1050, 1-inch inlet (for polypropylene models, typically 1-inch raised face ANSI/DIN flange)
• Polypropylene body, stainless steel center section, seats, and balls, PTFE/Santoprene diaphragms
• Designed for industrial fluid transfer, including water, antifreeze, and fuel
• UL listed (for standard Husky 1050 series)
• Modular air valve for smooth, low-pulsation operation
• Stall-free, rapid changeover
• End flange configuration for flexible installation
• Stainless steel components for enhanced durability and chemical resistance
• PTFE/Santoprene diaphragms for broad chemical compatibility
• Low maintenance and easy to service

Applications:
Industrial fluid transfer, including water, antifreeze, and fuel; suitable for mining, agriculture, and vehicle service environments

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing systems.
• Ensure proper alignment of end flange connections
• Verify compatibility of fluid and pump materials before installation
• Follow all safety instructions and local regulations
• Regularly inspect diaphragms and seals for wear
• Use appropriate tools and torque settings for assembly
• Periodically check for leaks and wear
• Replace diaphragms and seals as recommended
• Keep air supply clean and dry
• Lubricate moving parts as specified in the manual