AODD pumps with 3/4 inch (19.05 mm) connection available in aluminum and stainless steel. The Husky 3/4-inch pneumatic positive displacement double diaphragm pumps have an external controller for remote control capabilities.
Graco recommends the installation of a fluid pressure relief valve at the pump outlet to prevent overpressurization and rupture of the pump or hose. Use Fluid Pressure Relief Kit part number GR238428 for 716 aluminum Diaphragm Pumps.
Graco Husky Fluid Kits include the O-rings, Seats, Balls & Diaphragms for the specific materials in your diaphragm pump and can be found in our Parts Department.
Materials Guide
Acetal - For seals balls & wetted body parts
- Wide range of solvent resistance
- Withstands extreme fatigue
- Good level of abrasion resistance
- Groundable for use with flammables
- Not for use with acids or bases
Aluminum - For air motor & wetted body parts
- Medium corrosion & abrasion resistance
- Not for use with HHC's
Nitrile Rubber - For seats, balls & diaphragms
- Good for petroleum based fluids
- Not for use with chemicals
- Food grade
Polypropylene - For air motor, wetted body parts, seats & balls
- Wide chemical compatibility
- General purpose
- Inexpensive alternative
PTFE - For balls & diaphragms
- Excellent for solvents
- Poor abrasion resistance
- Widest chemical compatibility with fluids
Santoprene - For seats, balls & diaphragms
- Good abrasion & chemical resistance
- Not for use with solvents
- Often substituted for EPDM or EPR
- Food grade
Stainless Steel - For air motor, wetted body parts, seats & balls
- High level of corrosion & abrasion resistance
- Passivated for use with waterbase coatings
Features
- 3/4 in (19.05 mm) center- and end-porting
- No seals to leak or fail
- Quiet running less than 85 dba with easy-to-use remote muffler capability for even lower noise levels
- Easy-to-service air valve and ball checks
