The Varian Exhaust Mist Filter 949-9342 uses a high efficiency oil separating cartridge.
The output gas from the pump flows through the duct, passes the cartridge and exits from the surrounding chamber.
The oil mist is filtered by the cartridge where it transforms into drops. The drops deposit on the carter bottom for the gravity effect.
The Agilent filter cartridge also filters the solid particles from the gas. These particles are the main cause of the cartridge clog.
To avoid that the pressure before the filtering element increases so that the pump does not work properly, an overpressure device is provided that intervenes when the pressure reaches the 1 bar value.
When the cartridge is obstructed and the security system is operating, the oil mist is dragged by the gas flux from the pump directly to the external ambient.
Before the cartridge is completely obstructed, it is advisable to change it on a regular basis according to the pump application.
The Exhaust Filter is installed on the pump connecting the flange to the outlet flange of the pump by means of a clamping collar and centering ring.
(2) Replacement Cartridges for DS42 Oil Mist Filter.
Eliminates fog, oil, mist and smoke from the exhuast of the Varian DS42 Rotary Vane Vacuum Pump.
(2) Replacement Cartridges for Varian Oil Mist Filters.
The Varian Exhaust Mist Filter is assembled at the outlet of Rotary Vane Pumps and the main purpose is to purify the exhaust gases from oil mists. The use is advised for pumps which have to work for a long time at intake pressures exceeding 10 mbar, or with the ballasting tap open. The oil mist filter is provided with a relief valve to protect the pump from overloads caused by excessive resistance on the exhaust line. In case of saturation of the filtering element, it is possible to simply remove and replace it.