Diaphragm Pumps
A diaphragm pump that runs on 380V electricity without requiring an air compressor — with the advantages of fixed flow rate, low operating costs and easy maintenance.
About PE Series
Electric diaphragm pumps (PE Series) combine the reliable diaphragm operating principle of pneumatic AODD pumps with an electric motor, offering a solution that does not require an air compressor. The PE 20 (3 kW, 250 lpm) and PE 30 (4 kW, 500 lpm) models, which can be connected directly to a 380V 50Hz power supply, provide the opportunity to continue using diaphragm pump technology in facilities without compressor infrastructure, in fields where the compressor is to be removed, and in applications where operating costs are under pressure.
Compressor operating costs occupy a noticeable place in the facility's total energy expenses. An air compressor; motor consumption, maintenance costs, oil and filter changes, dry cooling or aftercooler and pipeline pressure losses combined effect increases the actual unit energy cost. The PE Series eliminates this layered cost; the energy converted directly from the electric motor to mechanical movement operates the pump's diaphragm. Its constant speed and constant flow characteristics provide a regular and predictable flow profile in line filling requiring process control, chemical dosing supply lines and transfer applications expecting uniform flow.
The PE Series' dry-run resistance is maintained at the same level as its air-driven sister series; when there is no fluid, the motor remains unloaded and the diaphragm remains in standby without damage. The polypropylene-bodied PE 20 offers broad chemical resistance for the chemistry and paint-coating sectors, while the aluminum-bodied PE 30 is suitable for wastewater, petrochemical, and mining applications requiring mechanical strength and higher flow rates. The elastomer option offers two different chemical compatibility classes as Santoprene and Neoprene; the correct selection based on application directly affects maintenance intervals and diaphragm life.
Technical Specifications
The PE Series makes it possible to use diaphragm pump technology in facilities without air infrastructure. Compressor installation costs, maintenance, and energy consumption are eliminated; investment payback period is shortened.
PE 20 model operates at 3 kW and PE 30 model operates at 4 kW motor power with high efficiency. Compared to a compressor + AODD system with the same flow capacity, the actual unit energy cost remains significantly lower.
The constant speed characteristic of the electric motor eliminates flow rate variability caused by air pressure fluctuations of the pneumatic pump. Automatic line filling provides a reliable flow profile in processes requiring chemical transfer and uniform flow.
Diaphragm design makes dry running harmless in the PE Series, which is a critical failure cause in centrifugal pumps. When the tank empties or the process stops, the pump waits without damage; when fluid returns, it resumes operation smoothly.
The PE 20's polypropylene body offers high chemical resistance against acids, bases, and non-polar solvents. The PE 30's aluminum body is preferred for applications where mechanical strength is a priority. Both models are available with Santoprene and Neoprene diaphragm options.
Through modular diaphragm group design, diaphragm replacement can be performed in field conditions without requiring special tools. The motor and pump head can be serviced independently; this feature reduces total maintenance time and spare parts inventory requirements.
Model Comparison
| Model | Connection | Maximum. Debut | Maximum Pressure | Engine Power | Body |
|---|---|---|---|---|---|
| PE 20 | 2'' | 250 lpm | 5 bar | 3 kW / 380V | Polypropylene (PP) |
| PE 30 | 3'' | 500 lpm | 5 bar | 4 kW / 380V | Aluminum (Al) |
Product Series
Frequently Asked Questions
