The GRACO D53977 Husky 716 AL is a 3/4 inch air-operated double diaphragm pump constructed with an aluminum fluid section, polypropylene standard air valve (NPT) center section, polypropylene seats, Buna balls, and Buna diaphragms. It is designed for the safe and efficient transfer of fluids in industrial environments, including those with abrasive or viscous materials.

Key Features:

• Air-operated double diaphragm pump
• Husky 716 AL, 3/4 inch (19.05 mm) connection
• Aluminum fluid section, polypropylene center section, polypropylene seats, Buna balls, Buna diaphragms, PTFE O-rings
• 16 gpm (61 l/min)
• 100 psi (7 bar, 0.7 MPa)
• Designed for use with a wide range of fluids, including those with solids up to 3/32 in (2.5 mm)
• ATEX T-code rating dependent on fluid temperature; see manual for details
• No mechanical seals to leak or fail
• Quiet operation (<85 dBa) with remote muffler capability
• Easy-to-service air valve and ball checks
• External controller for remote control
• Center and end porting options

Applications:
Used for evacuating and transferring fluids in industrial, mining, agricultural, and manufacturing settings. Suitable for handling abrasive, viscous, or solids-laden fluids.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may void warranties and compromise system integrity.
• Ensure all connections are secure and properly torqued (air valve bolts: 80–100 in-lb, 9.0–13.6 N-m)
• Grease lapped surfaces and bores as specified in the manual before assembly
• Leave center housing and air covers assembled during service unless otherwise required
• Follow all safety instructions and warnings in the manual