The ERWEKA Vacuum Pump VP 1000 used for testing MDI's and DPI's employs a Rotary Vane Vacuum Pump rated at 250 litres/ min. free air (210 Litres/min. when used with the control valve). The unit is supplied complete with an Electronic Digital Flow Meter as standard.

The air-flow is controlled by means of the screw valve on the front of the pump. The screw valve itself creates a restriction to the air flow such that the minimum flow rated achievable is approximately 210 litres/min.

For tests where the flow-rate of the standard pump is not enough to critical (Sonic) flow a second “High-Power” version of the ERWEKA Vacuum Pump, Type HPV, is available on request. This Rotary Vane Vacuum Pump rates at 460 litres/min free air.