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JONENG
Stainless Steel high-power welded electric/pneumatic dual diaphragm chemical pumps are available in electric and pneumatic types, with specifications covering a variety of flow rates and pressures. They are made of 304 or 316L stainless steel and feature corrosion resistance, high-pressure delivery, stable and efficient operation, and easy maintenance.
The Stainless Steel high-power welded electric/pneumatic dual-diaphragm chemical pump uses a motor or compressed air to drive two diaphragms in alternating reciprocating motion to achieve liquid transfer. When the diaphragms move outward, the pump chamber volume increases, and liquid is drawn in through the suction port; when the diaphragms move inward, the liquid is forced out through the pump outlet. A check valve inside the pump controls the flow direction, ensuring the medium flows in the specified direction and preventing backflow. The dual-diaphragm structure enables the pump to transport high-viscosity, corrosive, or solid-particle-containing liquids. Simultaneously, the diaphragms completely isolate the medium from the drive components, ensuring safety and leak-free operation. It is suitable for chemical, pharmaceutical, and industrial liquid transfer applications.
Max. flow rate | 50m3/h |
Frequency | 50HZ/60HZ |
Max. pressure | 8 bar |
Max. temperature | 110°C |
Material | SS304/SS316L |
| Inlet/outlet connection | Clamp, Weld, Flange |
| Inlet/outlet size | 1”-3” |
| Diaphragm | PTFE, PTFE with white back, EPDM, white EPDM, white NBR |
| Driving way | Air or Motor |
● The stainless steel sanitary double diaphragm pump adopts a dual-chamber structure, which automatically adjusts the internal pressure during the conveying process, reduces pulse fluctuations, and ensures flow stability.
● The stainless steel sanitary double diaphragm pump optimizes the flow channel through computational fluid dynamics (CFD), so that the fluid flows in the pump chamber with minimum resistance, reduces shear force, and ensures the integrity of sensitive materials.
● The micro-gap design between the valve ball and the valve seat of the stainless steel sanitary double diaphragm pump enables the valve ball to automatically adjust the sealing angle during operation, improve sealing performance, and reduce leakage.
● The stainless steel sanitary double diaphragm pump adopts a PTFE and EPDM composite diaphragm, the outer layer is corrosion-resistant, and the inner layer has enhanced elasticity. It can withstand high-frequency reciprocating motion, extend the life of the diaphragm, reduce the replacement frequency, and improve the long-term stability of the pump.
● The stainless steel sanitary double diaphragm pump adds a noise reduction buffer device in the pneumatic drive cavity, so that the compressed air forms a dispersed airflow when entering the pump body, reducing the airflow impact noise.
● When the internal pressure of the stainless steel sanitary double diaphragm pump increases abnormally, the built-in elastic pressure relief element will automatically release the excess pressure to prevent the pipeline or pump body from being damaged by overpressure.
Stainless Steel high-power welded electric/pneumatic dual diaphragm chemical pumps are suitable for the chemical industry, used for conveying highly corrosive acid and alkali liquids or solvents; in the petrochemical industry, they can convey emulsions and high-viscosity oils; in the environmental protection industry, they can handle sewage or chemical waste containing solid particles, ensuring efficient and safe operation.
Working Principles
The Stainless Steel high-power welded electric/pneumatic dual-diaphragm chemical pump uses a motor or compressed air to drive two diaphragms in alternating reciprocating motion to achieve liquid transfer. When the diaphragms move outward, the pump chamber volume increases, and liquid is drawn in through the suction port; when the diaphragms move inward, the liquid is forced out through the pump outlet. A check valve inside the pump controls the flow direction, ensuring the medium flows in the specified direction and preventing backflow. The dual-diaphragm structure enables the pump to transport high-viscosity, corrosive, or solid-particle-containing liquids. Simultaneously, the diaphragms completely isolate the medium from the drive components, ensuring safety and leak-free operation. It is suitable for chemical, pharmaceutical, and industrial liquid transfer applications.
Specification Chart
Max. flow rate | 50m3/h |
Frequency | 50HZ/60HZ |
Max. pressure | 8 bar |
Max. temperature | 110°C |
Material | SS304/SS316L |
| Inlet/outlet connection | Clamp, Weld, Flange |
| Inlet/outlet size | 1”-3” |
| Diaphragm | PTFE, PTFE with white back, EPDM, white EPDM, white NBR |
| Driving way | Air or Motor |
Features
● The stainless steel sanitary double diaphragm pump adopts a dual-chamber structure, which automatically adjusts the internal pressure during the conveying process, reduces pulse fluctuations, and ensures flow stability.
● The stainless steel sanitary double diaphragm pump optimizes the flow channel through computational fluid dynamics (CFD), so that the fluid flows in the pump chamber with minimum resistance, reduces shear force, and ensures the integrity of sensitive materials.
● The micro-gap design between the valve ball and the valve seat of the stainless steel sanitary double diaphragm pump enables the valve ball to automatically adjust the sealing angle during operation, improve sealing performance, and reduce leakage.
● The stainless steel sanitary double diaphragm pump adopts a PTFE and EPDM composite diaphragm, the outer layer is corrosion-resistant, and the inner layer has enhanced elasticity. It can withstand high-frequency reciprocating motion, extend the life of the diaphragm, reduce the replacement frequency, and improve the long-term stability of the pump.
● The stainless steel sanitary double diaphragm pump adds a noise reduction buffer device in the pneumatic drive cavity, so that the compressed air forms a dispersed airflow when entering the pump body, reducing the airflow impact noise.
● When the internal pressure of the stainless steel sanitary double diaphragm pump increases abnormally, the built-in elastic pressure relief element will automatically release the excess pressure to prevent the pipeline or pump body from being damaged by overpressure.
Application
Stainless Steel high-power welded electric/pneumatic dual diaphragm chemical pumps are suitable for the chemical industry, used for conveying highly corrosive acid and alkali liquids or solvents; in the petrochemical industry, they can convey emulsions and high-viscosity oils; in the environmental protection industry, they can handle sewage or chemical waste containing solid particles, ensuring efficient and safe operation.
