The GRACO 651179 is a stainless steel air-operated double diaphragm pump with a polypropylene (PP) center section, stainless steel (SS) seats, PTFE balls, and PTFE diaphragm. It is designed for reliable, leak-resistant transfer of fluids such as fuels, chemicals, and other compatible liquids in industrial and maintenance applications.

Key Features:

• Pneumatic (Air-Operated) Double Diaphragm Pump
• Husky 1050 SS, 1 in. (25.4 mm) BSPT
• Stainless steel (SS) wetted parts, polypropylene (PP) center section, PTFE balls and diaphragm
• Maximum free flow delivery: 50 gpm (189 lpm)
• Maximum fluid working pressure: 125 psi (8.6 bar, 0.86 MPa)
• Suitable for fuels, chemicals, and compatible liquids; not for use with incompatible fluids
• ATEX, CE (as per some listings; confirm with manufacturer for specific model)
• Stall-free low pulsation air valve for smooth operation
• One-piece center section for leak resistance and reduced maintenance
• Robust construction for reliability and long service life
• Designed for easy maintenance and replacement of wear parts

Applications:
Transfer of fuels, chemicals, and compatible liquids in industrial, mining, agricultural, and maintenance environments. Suitable for applications requiring resistance to corrosion and chemical attack.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and compatibility with existing equipment.
• Ensure all connections are tight and leak-free before operation
• Use appropriate thread sealant for BSPT connections
• Follow manufacturer guidelines for air supply and pressure settings
• Regularly inspect and maintain diaphragms, balls, and seats for wear