Mapner products

The side channel blower or exhauster increases the pressure ofthe aspirated gas by the creation, in the peripheral toroidal channel,of a series of vortexes caused by the centrifugal thrust of theimpeller. Side channel blowers are suitable for all those applications requiring considerably higher pressures than that which can be achieved using centrifugal fans. Side channel exhausters are used in all those applications requiring an operating vacuum higher than the one achievable by a fan, but not as high as to require the use of a vacuum pump. The rotating parts are not in contact with the casing.There is therefore no friction during operation and thus no internal lubrication is necessary. The gas moving through the machine therefore remains uncontaminated and completely oil-free.

The side channel blower or exhauster increases the pressure ofthe aspirated gas by the creation, in the peripheral toroidal channel,of a series of vortexes caused by the centrifugal thrust of theimpeller. Side channel blowers are suitable for all those applications requiring considerably higher pressures than that which can be achieved using centrifugal fans. Side channel exhausters are used in all those applications requiring an operating vacuum higher than the one achievable by a fan, but not as high as to require the use of a vacuum pump. The rotating parts are not in contact with the casing.There is therefore no friction during operation and thus no internal lubrication is necessary. The gas moving through the machine therefore remains uncontaminated and completely oil-free.

Our SEM/VAC rotary piston vacuum pumps belong to the positive-displacement machines family. The symmetrical three-lobe pistons rotate in opposite directions without any surface contact. They are synchronised by means of high precision gears. During rotation at the intake stage, a space of increasing volumetric flow capacity is generated. For controlling the vacuum level and maintaining the acceptable thermal conditions in service, the machine has been fitted with an automatic overpressure valve which provides air recirculation, thus avoiding extreme differential pressures from developing in the core of the pump.