33 mbar abs. (25Torr)
27 m3/h to 500 m3/h
John Crane / Burgmann Mechanical seal
NSK / NSK International famous brand
Water ring vacuum pumps are suitable for pumping the gases and steam. Its suction pressure can reach 33mbar (abs) (i.e. 97 % vacuum degree). If the transformer oil is used as the operating liquid, these pumps are called oil ring vacuum pump and the suction pressure can reach 6.7mbar (abs) (i.e. 99 % vacuum degree). So the oil ring vacuum pumps can replace the reciprocated vacuum pumps completely. When the liquid ring vacuum pumps work under the condition near the ultmost vacuum for a long time, it is necessary to couple with the cavitation protection pipe in order to get rid of the screaming so as to protect the pump. When the 2BV pumps are used as compressor, it should check the discharge pressure and select suitable motor power because the motor power will be increasing along with the exhausting pressure.
1. Pulp & paper industry : black liquid evaporation,vacuum dehydrator,degassing system of raw materials and white water, suction tank,couch roll, absorption-shift roll and transmission roll, Anti-wind box.
2. Chemical industry : methane gas recovery,petroleum recycle, gas collection, exhaust compression, vapor collection, filtration and deceration, polyester Production, PVC Production.
3. Power plant : condenser exhausting,water box priming,flue gas desulfurization, fly ash conveying,geothermal gas removal,Vacuum Pressure impregnation for transformers.
4. Sugar industry : Sewage filtering, CO2 production etc