- 0,5 - 18,0 m³/h
- Frequency-controlled
Usage
The individual pressure booster units in the PEFM series are speed-controlled devices with a frequency converter integrated into the motor. The units are factory-assembled and wired ready to plug in. The PI controller integrated into the frequency converter is programmed ex works for operation with constant delivery pressure. The software can be easily adapted to the conditions on site using a smartphone app and a communication module (accessory). All parts that come into contact with the medium are made of stainless steel. A diaphragm expansion tank limits the number of switching cycles and ensures pressure-dependent switching on and off without pressure surges. The high-quality stainless steel centrifugal pump in industrial design guarantees many years of reliable operation.
The units can either be installed directly as a stand-alone solution or used in conjunction with the extensive range of accessories. This allows optimal adaptation to the respective requirements. Target and actual values can be conveniently displayed and programmed using the communication module, which is available as an accessory, and a smartphone app.
The pressure booster stations are used where a pressure increase with the most constant delivery pressure possible is required.
- Pumping water from storage tanks
- Pressure increase in tap water networks
- Pumping water from network separation tanks
Functionality
The pressure booster stations are designed for inflow operation with and without pre-pressure, as well as for suction operation with moderate suction height. A fully automatic, pressure-dependent control system regulates the switching on and off of the pump. Smaller withdrawal quantities are fed into the network from the diaphragm expansion tank, which prevents the pump from starting up too frequently. The pressure booster station must be protected against dry running by means of a suitable protective device (accessory). The dry running protection can be designed as a float switch, pressure switch, or electrode relay.
A collective fault signal can be tapped at the control system (potential-free changeover contact).
The pressure booster stations are electrically wired at the factory. The operating voltage is 400 V/N/PE, the control unit is operated with low voltage (24 V/50 Hz). The pressure limits and the pre-pressure in the diaphragm expansion vessel may need to be adjusted to suit local operating conditions. The factory setting is indicated on the type plate.
Advantages
Constant delivery pressure
Energy savings through speed control
Easy to use
High-quality pump technology from the global market leader
Space-saving design
Stainless steel pipe fittings
Small-volume diaphragm expansion tank
Scope of delivery
Stainless steel centrifugal pump
Motor with integrated frequency converter and PI controller
Pressure sensor
Stainless steel piping
Fitting set with pressure gauge and non-return valve
Diaphragm expansion vessel
Downloads
Catalog sheet
Download