DS 602 Rotary Vane Pump

The DS 602 is a dual-stage, oil-sealed rotary vane pump that delivers a pumping speed of 25 m3/hr / 17.6 CFM, and a base pressure of < 2 x 10-3 mbar. The DS 602 operates at a very quiet sound pressure, and is available with either a universal-voltage single-phase electric motor, with integral power switch, or an optional three-phase motor.

An inlet isolation valve is integrated into the pump to close off the inlet port whenever power to the pump is interrupted. This antibackstream valve maintains vacuum in the roughing, or fore-line, and prevents pump oil from contaminating the vacuum chamber. The DS 602 has a manual gas-ballast valve, that when opened, allows the pump to achieve its rated water-vapor handling specification of 550 gr/hr.

Product details Related Product


  • Dual stage design allows low 10-3 mbar operation, low operating temperature, minimal backstreaming at low pressure, good pumping efficiency and gas ballast in the low 10-2 mbar region
  • Worldwide motors available as 1-phase or 3-phase, are suitable for all voltages and frequencies worldwide. Operational voltages are easily selectable, allowing greater flexibility, easy planning and inventory reduction
  • The antibackstream valve and vent device isolates the pump should it stop or be idle, it also prevents inadequate venting and oil contamination of the vacuum system when the pump is switched off, or in case of power fail
  • Socket type IEC320 permits use of standard power cable and eliminates the need to open box and wire the motor
  • Gas ballast valve when opened injects dry air into the second stage of the pump, this action increases the temperature of the module which facilitates the outgassing and clean up of water vapor or other condensable gases from the oil
  • Shipped without a power cord, to be ordered separately


Dimensions (WxHxL)
  • 164 mm x 242 mm x 541 mm
Exhaust Connection
  • 25KF DN
Free Air Displacement
  • 50 Hz: 504 L/min
  • 60 Hz: 605 L/min
  • 50 Hz: 30.2 m³/h
  • 60 Hz: 21.4 cfm
  • 242 mm
Inlet Connection
  • 25KF DN
Input Voltage
  • 1 phase motors 100-120/200-230V ±10%, 50/60 Hz
  • 3 phase motors 200-220/380-415V ±10% at 50 Hz
  • 3 phase motors 200-230/460V ±10% at 60 Hz
  • 541 mm
Oil Capacity Min/Max
  • 0.5 / 1 l
Pumping Speed (50 Hz)
  • 25 m3h
Pumping Speed (60 Hz)
  • 17.6 cfm
Rotational Speed at 50Hz
  • 1500 rpm
Ultimate Partial Pressure
  • 10-4 mbar
Ultimate Total Pressure with Gas Ballast
  • 2∙10-2 mbar
Water Vapour Pumping Capacity
  • 550 g/h
Water Vapour Tolerance
  • 30 mbar
  • 35 kg
  • 164 mm



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