Marpa Vacuum MVT vacuum pumps are dry-running screw pumps. They are characterised by their high efficiency and are ideal for industrial processes requiring dependable and contaminant-free pumping of gases and vapours.
Due to the asymmetrical design of the screws, as well as the free gas outlet, the pumps offer superior compatibility with particles and fluids. The temperature inside the pump is evenly distributed to guarantee that the materials stand up to corrosion.
The screw pitch can be variable or constant. The variable pitch MVT series design generates peak vacuum performance and increased pumping speed ratios, ensuring cost-effective operation and high flow rates.
As there is no contact between the two screws, no additional lubrication is required. Cooling can take place through both a closed-loop system or an open system with water.
The coating will depend on the application of the pump. Thanks to the choice of materials and coatings, MVT series pumps are ideal for treating gases in toxic, corrosive or condensing processes.
Marpa Vacuum screw pumps contain two helical screws of variable or constant pitch which rotate inside the housing in opposite directions and without contact with each other. The gas is trapped in the chambers formed by the cylinder and the screws and is transported to the exhaust in rapid succession.
The parts of the pump that undergo the most friction, such as the rotor and the casing, are given a protective coating: