Ehrler & Beck Vakuum- und Drucklufttechnik GmbH
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LRP 900 VSD+ Once-through with proportional valve (OT-PV), 3Ph 380/400/460 V 50/60 Hz

The Atlas Copco LRP 900 VSD+ is the medium size of Atlas Copco’s variable-speed liquid ring vacuum pumps: 940 m³/h volume flow (dry), 1090 m³/h saturated, 25 mbar(a) ultimate pressure, 26 kW. Ehrler & Beck supplies the LRP 900 VSD+ in ten variants with matching spare parts, accessories and service.

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  • Pumping speed 940 m³/h 50 Hz 940 m³/h 60 Hz
  • Ultimate pressure 25 mbar
  • Rated motor power 26 kW 50 Hz 26 kW 60 Hz

Atlas Copco LRP 900 VSD+ – 940 m³/h on an unchanged footprint

The LRP 900 VSD+ delivers 940 m³/h with dry air and 1090 m³/h with saturated air and reaches an ultimate pressure of 25 mbar(a). The main motor delivers 26 kW. As with the sister models, the housing measures 1950 × 810 × 1020 mm; the dry weight of the standard version is 885 kg. Connections: flange DN 100 PN 10 at the inlet and outlet.

Controller and networking

The MKV Elektronikon controller from Atlas Copco is built in as standard. It shows pump status, operating conditions, warnings and maintenance information and can be integrated into a process control system. Several LRP VSD+ pumps can be monitored and controlled together via the HEX@GRID central controller; the pump is compatible with the GENIUS platform for remote monitoring.

Applications of the range

The fields of application named by Atlas Copco include food processing (cheese, milk evaporation, bottling, fruit processing, poultry and meat processing), plastics extrusion, rubber vulcanisation and forming, drying, sterilisation, evaporation, the forming of expanded polystyrene, filtration and transport.

Variants of the LRP 900 VSD+

The LRP 900 VSD+ is available from Ehrler & Beck in ten variants (part numbers 1950813004, 1950813007, 1950813010, 1950813013, 1950813016, 1950813019, 1950813022, 1950813025, 1950813031, 1950813034). They differ in the routing of the operating liquid, the material and the enclosure protection:
  • Total recovery with plate heat exchanger (standard): closed system; the operating liquid is cooled and reused. According to Atlas Copco up to 95 % water savings compared with conventional once-through systems
  • Shell-and-tube heat exchanger (TS): total recovery for poor water quality, more resistant to contamination
  • Once-through with proportional valve (OT-PV): the operating liquid is discharged directly; the proportional valve matches its inflow to the process
  • Once-through with centrifugal pump (OT/CP): variable-speed centrifugal pump for the seal water supply, without additional pressure from an external piping system
  • Stainless steel (SS): all wetted metal parts made of stainless steel 316 for applications with chemicals or corrosive media
  • Weather-resistant (WR): for (partial) outdoor use, housing with ventilation slots, electrical connections to IP56

Features of the LRP VSD+ range

  • Plug and play: robust housing, controller, and inlet, outlet and main cable connections on the top
  • Two VSD drives: vacuum setpoint control and controlled water circulation pump
  • Automatic Seizure Prevention: protection against seizing after prolonged inactivity
  • Acoustic enclosure
  • MKV Elektronikon controller, compatible with HEX@GRID and the GENIUS platform
  • Simple maintenance: IP54 control cabinet, mechanical seals, removable heat exchanger, access opening
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