The Graco DB3311 is a 1-1/2-inch Husky 1590 air-operated double-diaphragm pump configured with an aluminium pump housing, an aluminium centre body, and NPT connections. Its wetted configuration uses PTFE diaphragms, PTFE balls, and 316 stainless steel seats.
Graco DB3311 configuration
- Pump family: Graco Husky 1590
- Port size: 1-1/2 in
- Connection: NPT
- Pump housing: Aluminium
- Centre body: Aluminium
- Diaphragms: PTFE
- Balls: PTFE
- Seats: 316 Stainless Steel
Husky 1590 pump features
The Husky 1590 air-operated diaphragm pump features a patented, high-reliability closed center air valve that is online serviceable and an epoxy-coated air section for tough environmental conditions.




