Description
The GRACO 651154 is a stainless steel air-operated double diaphragm (AODD) pump with a polypropylene (PP) center section, stainless steel (SS) seats, and stainless steel balls. It is designed for reliable, leak-free transfer of fluids, including those with small solids, in industrial and maintenance applications.
Key Features:
- Air-Operated Double Diaphragm Pump
- Husky 1050, 1 in. (25.4 mm) NPT
- Stainless steel (SS) seats and balls, polypropylene (PP) center section
- 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 those with solids up to 1/8 in. (3.2 mm)
- UL listed
- Stall-free, low pulsation air valve for smooth and rapid changeover
- One-piece center section eliminates leaks and reduces maintenance
- Four bolt joint design for even sealing pressure and leak-free operation
- Modular air valve for easy maintenance
- Up to 5x longer diaphragm life for less maintenance and downtime
- Multiple ports for installation flexibility
- Optional DataTrak for runaway protection and material usage tracking
- Optional pulse output for cycle count capability
Applications:
Ideal for transferring fluids with small solids in industrial, mining, agricultural, and maintenance environments. Suitable for use in lubrication systems, chemical transfer, and other fluid handling applications.
Installation Notes:
- Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with GRACO equipment.
- Ensure all connections are tight and leak-free before operation
- Use appropriate thread sealant on NPT connections
- Follow manufacturers guidelines for air supply and pressure settings
- Regularly inspect diaphragms and seals for wear and replace as needed
- Lubricate moving parts according to maintenance schedule






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