Buy Air Operated Double Diaphragm Pumps Here (AODD)
The air operated double diaphragm pump is a type of positive displacement pump that draws fluid into the inlet side of one or more pistons, where it is compressed and pushed out through the outlet side. The inlet and outlet ports are separated by a diaphragm. As the diaphragm moves outward, it creates an area of low pressure on its outer side, drawing fluid into the pump chamber. As this area expands, so does its volume. The air operated double diaphragm pump uses compressed air to actuate these pistons.
The diaphragm seals against a surface called a sealing face or seat, which can be made from various materials including metal and plastic. The chamber wall may also be made from a variety of materials, but should be able to withstand high temperatures and pressures without becoming brittle over time.
Pump Structure
Pump Material
| Elastomers | Temperature Limits |
|---|---|
| Neoprene | -18 to 93 °C |
| Buna-N | -12 to 82 °C |
| EPDM | -51 to 138 °C |
| Viton | -40 to 177 °C |
| Polyurethane | -12 to 66 °C |
| Santoprene | -40 to 107 °C |
| Hytrel | -29 to 104 °C |
| PTFE | 4 to 104 °C |
Metallic
| Wetted Parts |
|---|
| Aluminium |
| Ductile Iron |
| Stainless Steel |
Non-Metallic
| Wetted Parts |
|---|
| Polypropylene |
| PVDF |
| ETFE |
½” BSP (15 mm)
Max Flow Rate : 56 LPM
Max Solid Size : 1.6 mm (1/16″)
Suction Lift : Dry : 5.2 m, Wet : 8.7 m
1″ BSP (25 mm)
Max Flow Rate : 133 LPM
Max Solid Size : 3.17 mm (0.125″)
Suction Lift : Dry : 3.05 m, Wet : 4.89 m
1 ½” BSP (40 mm)
Max Flow Rate : 310 LPM
Max Solid Size : 4.8 mm (3/16″)
Suction Lift : Dry : 7.0 m, Wet : 8.6 m
2″ BSP (50 mm)
Max Flow Rate : 700 LPM
Max Solid Size : 6.4 mm (¼”)
Suction Lift : Dry : 6.9 m, Wet : 8.6 m
3″ BSP (80 mm)
Max Flow Rate : 882 LPM
Max Solid Size : 9.5 mm (⅜”)
Suction Lift : Dry : 6.7 m, Wet : 9.5 m
4″ BSP (100 mm)
Max Flow Rate : 1211 LPM
Max Solid Size : 35 mm (1-⅜”)
Suction Lift : Dry : 4.1 m, Wet : 8.6 m
¼” BSP (6.35 mm)
Max Flow Rate : 16.7 LPM
Max Solid Size : 0.7 mm (1/32″)
Suction Lift : Dry : 1.9 m, Wet : 9.3 m
½” BSP (15 mm)
Max Flow Rate : 56 LPM
Max Solid Size : 1.6 mm (1/16″)
Suction Lift : Dry : 5.2 m, Wet : 8.7 m
1″ BSP (25 mm)
Max Flow Rate : 133 LPM
Max Solid Size : 3.17 mm (0.125″)
Suction Lift : Dry : 2.14 m, Wet : 3.98 m
1 ½” BSP (40 mm)
Max Flow Rate : 458 LPM
Max Solid Size : 6.4 mm (3/16″)
Suction Lift : Dry : 5.5 m, Wet : 9.0 m
2″ BSP (50 mm)
Max Flow Rate : 643 LPM
Max Solid Size : 6.4 mm (¼”)
Suction Lift : Dry : 7.4 m, Wet : 8.6 m
3″ BSP (80 mm)
Max Flow Rate : 999 LPM
Max Solid Size : 13 mm (⅜”)
Suction Lift : Dry : 3.63 m, Wet : 8.64 m
Metallic
| Wetted Parts |
|---|
| Aluminium |
| Ductile Iron |
| Stainless Steel |
½” BSP (15 mm)
Max Flow Rate : 56 LPM
Max Solid Size : 1.6 mm (1/16″)
Suction Lift : Dry : 5.2 m, Wet : 8.7 m
1″ BSP (25 mm)
Max Flow Rate : 133 LPM
Max Solid Size : 3.17 mm (0.125″)
Suction Lift : Dry : 3.05 m, Wet : 4.89 m
1 ½” BSP (40 mm)
Max Flow Rate : 310 LPM
Max Solid Size : 4.8 mm (3/16″)
Suction Lift : Dry : 7.0 m, Wet : 8.6 m
2″ BSP (50 mm)
Max Flow Rate : 700 LPM
Max Solid Size : 6.4 mm (¼”)
Suction Lift : Dry : 6.9 m, Wet : 8.6 m
3″ BSP (80 mm)
Max Flow Rate : 882 LPM
Max Solid Size : 9.5 mm (⅜”)
Suction Lift : Dry : 6.7 m, Wet : 9.5 m
4″ BSP (100 mm)
Max Flow Rate : 1211 LPM
Max Solid Size : 35 mm (1-⅜”)
Suction Lift : Dry : 4.1 m, Wet : 8.6 m
Non-Metallic
| Wetted Parts |
|---|
| Polypropylene |
| PVDF |
| ETFE |
¼” BSP (6.35 mm)
Max Flow Rate : 16.7 LPM
Max Solid Size : 0.7 mm (1/32″)
Suction Lift : Dry : 1.9 m, Wet : 9.3 m
½” BSP (15 mm)
Max Flow Rate : 56 LPM
Max Solid Size : 1.6 mm (1/16″)
Suction Lift : Dry : 5.2 m, Wet : 8.7 m
1″ BSP (25 mm)
Max Flow Rate : 133 LPM
Max Solid Size : 3.17 mm (0.125″)
Suction Lift : Dry : 2.14 m, Wet : 3.98 m
1 ½” BSP (40 mm)
Max Flow Rate : 458 LPM
Max Solid Size : 6.4 mm (3/16″)
Suction Lift : Dry : 5.5 m, Wet : 9.0 m
2″ BSP (50 mm)
Max Flow Rate : 643 LPM
Max Solid Size : 6.4 mm (¼”)
Suction Lift : Dry : 7.4 m, Wet : 8.6 m
3″ BSP (80 mm)
Max Flow Rate : 999 LPM
Max Solid Size : 13 mm (⅜”)
Suction Lift : Dry : 3.63 m, Wet : 8.64 m
Gallery
