your best partner for vacuum


The EVR-series are robust Vacuum Roots Booster Pumps

These Roots pumps are excelent tools to boost up your pumping speed and the reach a much better ultimate vacuum. These EVR-series Roots pump are useally combined with the pre-vacuum pumps of the following series: EV-series, EVD-series. The pumps can be supplied with an optional bypass system and valve, this bypass system allows the Roots pump to be started already at atmosphere at the same time as the pre-vacuum pump. The pump has a magnetic drive, this magnetic drive eliminates allows the pump to run without a shaft seal, so it reduces downtime and service costs. Due to the lower ultimate vacuum the pump is oftenly used in applications like:

  • Vacuum packaging
  • Vacuum metallurgy
  • Thin film coating
  • Spae simulation
  • Freeze drying
  • Vacuum impregnation
  • Low density wind tunnels
  • Vacuum distillation
  • Drying and de-gassing

Part Number

Ordering information Art.No.
EVR-1000M (with magnetic drive); 3 phase; 230V; 50/60Hz 663021
EVR-1000BM (with bypass and magnetic drive); 3 phase; 230V; 50/60Hz 663031


Specification Unit 50 Hz 60 Hz
Nominal displacement m3/h 1080 1300
Ultimate vacuum mbar 3×10-4 3×10-4
Delta P of the relieve valve mbar 58 58
Motor power kW 4 4
Nominal speed rpm 2825 3400
Type of protection IP 55 55
Oil filling for the gearbox ltr 2,8 2,8
Weight (B/M/BM version) kg 235 (290/245/300) 235 (290/245/300)
Noise level dB 74 77
Connection inlet DIN 160 160
Connection outlet DIN 160 160


Accessoires Art.No.
Adapter set for ISO-K flanges; Inlet DN 160 ISO-K 663701
Adapter set for ISO-K flanges; Outlet DN 160 ISO-K 663702


Consumables Art.No.
Sealing kit for EVR-1000M 663921
Sealing kit for EVR-1000BM 663931
Maintenance kit for the EVR-1000M 663922
Maintenance kit for the EVR-1000BM 663932
Standard oil filling 1 ltr 100400

Pumping speed curve




Dimensions (mm) L0 L1 L2 L3 L4 H1 H2
EVR-1000 1100 325 275 740 20 525 90
H3 W1 W2 W3 4-ØC
215 320 408 285 4-Ø18