MDU-50K was developed on the basis of two liquid ring vacuum pumps VVN2-50M. It consists of two modules:
MDU-150K was developed on the basis of two liquid ring vacuum pumps VVN-150M. It consists of 5 modules:
Preliminary purification system of methane-air mixture
Manufacturers of liquid ring vacuum pumps have set requirements to the purity of the working fluid and the pumped gas:
Often these requirements are violated due to the high content of dust in the air-gas environment because of mining operating, due to the roof collapse, damaging the integrity of the pipeline, pollution of degassing pipeline when it is remounting, etc. All dust and dirt from the methane-air mixture (MAM) gets into the working fluid of liquid ring vacuum pump, that in turn, leads to its failure. Therefore preliminary purification of the pumped MAM is necessary.