The DS 402 is a dual-stage oil-sealed rotary vane pump that delivers a pumping speed of 17.4 m³/hr / 12.3 CFM, and a base pressure of < 2 x 10^-3 mbar. The DS 402 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 402 has a manual gas-ballast valve, which when opened, allows the pump to achieve its rated water-vapor handling specification of 550 gr/hr.

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

Part Number Variant

9499330 DS 402 rotary vane pump, 410 L/min, free air displacement at 60 Hz, 1 phase motor (100-120/ 200-230 V) +-10%, 50/ 60 Hz
9499331 DS 402 rotary vane pump, 410 L/min, free air displacement at 60 Hz, 3 phase motor (200-220/ 380-415 V) +-10%, 50 Hz, (200-230 /460) +-10%, 60 Hz

New, factory warranted pumps available.

Price: POA, please contact us for latest prices

Manual

View Manual

Dimensions (WxHxL)

164 mm x 242 mm x 541 mm

Exhaust Connection

25KF DN

Free Air Displacement

50 Hz: 342 L/min

60 Hz: 410 L/min

50 Hz: 20.5 m^-3/h

60 Hz: 14.5 cfm

Height

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

Length

541 mm

Oil Capacity Min/Max

0.5 / 1 l

Pumping Speed (50 Hz)

17.4 m³/h

Pumping Speed (60 Hz)

12.3 cfm

Rotational Speed at 50Hz

1500 rpm

Ultimate Partial Pressure

10^-4 mbar

Ultimate Total Pressure with Gas Ballast

1·10^-2mbar

Water Vapour Pumping Capacity

350 g/h

Water Vapour Tolerance

30 mbar

Weight

35 kg

Width

164 mm

Service Information

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DS 402 Rotary Vane Pump

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DS 402 Rotary Vane Pump