Graco Husky 307 air-operated double diaphragm (AODD) pump, part number D31211, acetal fluid section and polypropylene center section, with Acetal seats, PTFE balls and a PTFE/EPDM 2-Piece diaphragm. Fluid ports are 3/8 in. (9.525 mm) NPT, end port. Maximum free-flow delivery 6.5 gpm (24.6 lpm) at up to 100 psi (7 bar) fluid pressure.
| Brand | Graco |
| Range | Husky 307 (air-operated double diaphragm), 3/8 in. |
| Part number | D31211 |
| Fluid section material | acetal |
| Center section material | polypropylene |
| Seat material | Acetal |
| Ball material | PTFE |
| Diaphragm material | PTFE/EPDM 2-Piece |
| Manifold o-ring material | PTFE |
| Manifold configuration | end port |
| Maximum fluid working pressure | 100 psi (7 bar) |
| Maximum free-flow delivery | 6.5 gpm (24.6 lpm) |
| Maximum pump speed | 330 cpm |
| Maximum size pumpable solids | 0.0625 in (1.5875 mm) |
| Maximum operating temperature (Graco product page) | 180 degF (82 degC) |
| Maximum air consumption | 5.5 scfm |
| Maximum air pressure | 100 psi (7 bar) |
| Air inlet size | 1/4 npt(f) |
| Fluid inlet and outlet size | 3/8 in (9.525 mm) npt(f) |
| Weight | 5.25 lb |
| Standards met | ATEX, CE |
| Material | Acetal (fluid section) |
| Pressure rating | 100 psi (7 bar) |
| Temperature range | Maximum operating temperature 180 degF (82 degC) per the Graco product page |
| Thread standard | NPT |
| MOQ | 1 |
Husky 307 series, 3/8 in. air-operated double diaphragm pump — the smallest pump in the Husky AODD range; the next size up is the 1/2 in. Husky 515. Seat, ball and diaphragm materials are selected by configuration; confirm fluid compatibility before ordering.