The GRACO DB2955 is a double diaphragm air-operated pump designed for industrial fluid transfer. It features a polypropylene fluid section, aluminum center section, polypropylene seats, TPE (thermoplastic elastomer) balls, and TPE diaphragm. This pump is intended for handling a wide range of fluids in demanding environments, offering robust performance and chemical resistance.
Maximum discharge pressure: 120 psi (8.4 bar, 0.84 MPa)
Compatible with a wide range of industrial fluids, including chemicals, water, and wastewater
Lube-free operation
Epoxy-coated air section for tough environmental conditions
Externally accessible air valve for easy maintenance
Fewer parts than industry peers
Up to 5 times longer diaphragm life compared to similar pumps
Compact and portable design
Applications: Industrial fluid transfer, chemical processing, water and wastewater transfer, compatible with asphalt sealer, antifreeze, detergents, motor oil, hydraulic fluid, cutting oil, and more
Installation Notes:
Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment.
Ensure proper alignment of inlet and outlet connections (1-1/2" NPT)
Use appropriate thread sealant for leak-free operation
Install in a location with adequate ventilation and access for maintenance
Regularly inspect and service the air valve and diaphragm for extended pump life
Follow manufacturer’s guidelines for installation and maintenance
Use only compatible fluids as specified in the manual
Perform routine checks on diaphragm and ball condition
Keep the air section clean and free from debris
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