Double Diaphragm Pumps
Double diaphragm pumps thanks to their technical characteristics, guarantee the greatest level
of safety in all industrial applications where the use of compressed air driven pumps is required in the presence of particularly aggressive fluids.
These pumps may be used in explosive environments (ATEX), in situations characterized by high humidity and where the hazards of dry operation are high.
The pumps function using two membranes that simultaneously operate in opposition to each other: the air introduced behind the first membrane pushes the product being pumped towards the discharge and, simultaneously, through the force of the shaft, it drags the other membrane resulting in suction in the suction line. The two Long-Life membranes, which work alternatively in two directions, allow an extremely long duration even when subjected to particularly severe working conditions.
Characteristics
These pumps may be used in explosive environments (ATEX), in situations characterized by high humidity and where the hazards of dry operation are high.
The pumps function using two membranes that simultaneously operate in opposition to each other: the air introduced behind the first membrane pushes the product being pumped towards the discharge and, simultaneously, through the force of the shaft, it drags the other membrane resulting in suction in the suction line. The two Long-Life membranes, which work alternatively in two directions, allow an extremely long duration even when subjected to particularly severe working conditions.
Characteristics
- Non lubricated air supply.
- Dry operation.
- Explosion-proof.
- Adjustable flow rate and head.
- Speed and pressure control.
- Connections on 3 discharge and suction positions and splitting of manifolds.
- Quick and simple maintenance.
- Automatic coaxial exchanger
- Pump casing
- Membrane
- Collector
- Sphere
- Membrane
| Model |  BX 50 |  BX 80 |  BX 81 |  BX 100 |  BX 150 |  BX 250 |  BX 251 |  BX 502 |  BX 503 |
|---|---|---|---|---|---|---|---|---|---|
| Suction/discharge connections - inches | G ½ | G 1 | G 1 | G 1 | G 1 ¼ | G 1 ½ | G 1 ½ | G 2 | G 3 |
| Air connection - inches | G½ | G ½ | G ½ | G ½ | G ½ | G ½ | G ½ | G ½ | G ½ |
| Max dry suction lift - m | 5 | 5 | 6 | 5 | 5 | 5 | 6 | 4 | 5 |
| Max flow rate - l/min | 50 | 90 | 100 | 150 | 220 | 340 | 340 | 650 | 850 |
| Max head - m | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 |
| Max supply air pressure - bars | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Max diameter of passing solids - mm | 3 | 4 | 4 | 4 | 5 | 6 | 6 | 8 | 10 |
| Net weight PP - kg | 3,6 | 5,5 | --- | 7,5 | 12 | 16 | --- | 54 | 56 |
| ECTFE - kg | 4,2 | 7 | --- | 9 | 14 | 20 | --- | --- | --- |
| Al - kg | 4,2 | --- | 6,5 | --- | 16 | --- | 21 | --- | --- |
| AISI 316 - kg | 6,5 | 10,5 | --- | --- | 21 | --- | 32 | --- | --- |
| PVDF | --- | --- | --- | --- | --- | --- | --- | 65 | 67 |
| Materials | PP ECTFE Al Aisi 316 | PP ECTFE Aisi 316 | Al | PP ECTFE | PP ECTFE Al Aisi 316 | PP ECTFE | Al Aisi 316 | PP PVDF | PP PVDF |
| Model |  BX 5 |  BX 15 |  BX 25 |
|---|---|---|---|
| Suction/discharge connections - inches | G ¼ | G 3/8 | G ½ |
| Air connection - inches | G 1/8 | G 3/8 | G ¼ |
| Max dry suction lift - m | 3 | 3 | 3 |
| Max flow rate - l/min | 5 | 17 | 26 |
| Max head - m | 70 | 70 | 70 |
| Max supply air pressure - bars | 7 | 7 | 7 |
| Max diameter of passing solids - mm | --- | 0,5 | 2 |
| Net weight PP - kg | 0,5 | 1 | 2,6 |
| ECTFE - kg | --- | 1,5 | 3,5 |
| Al - kg | --- | --- | --- |
| AISI 316 - kg | --- | --- | --- |
| PVDF | --- | --- | --- |
| Materials | PP | PP ECTFE | PP ECTFE |
Technical data subject to change without prior notice
Max dry suction lift: this value depends on the construction materials
