Graco D51277 3/4" and 1/2" Ports, Acetal Diaphragm Pump 515 Ball Valves the integrated bleed hole featured

the integrated bleed hole featured allows less than 2% of the maximum flow to relieve fill line pressure allowing the fill nozzle to be removed without spilling product

The FR4210HN model is a 12V DC

Easy to open

felt dust seal

Pressure-assisted trigger for ease of operation

Graco D51277 3/4" and 1/2" Ports, Acetal Diaphragm Pump 515 Ball Valves the integrated bleed hole featuredThe Husky 515 air operated double diaphragm pump features a stall free low pulsation air valve which provides a smooth and rapid changeover. The bolt through fluid cover design eliminates leaks and makes the Husky safer with higher reliability. Center and end porting options. No mechanical seals to cause fluid leaks or failures Runs quietly at less than 85 dBa with easy to use remote muffler capability for even lower noise levels Easy to service air