7 years on Allbiz
The AVZ, NVZ vacuum spool-type units Are intended for the pumping of air, nonaggressive gases and steam-gas mixes which are previously purified of drop moisture and mechanical pollution at the ambient temperature from 10 to 35 Pages.The vacuum pumps AVZ-20D, AVZ-63D, and AVZ-125D - two-level consecutive action. The vacuum pumps AVZ-90, AVZ-180 and NVZ-300 - one-stage pumps of parallel action. Materials of execution of flowing part of AVZ pumps - gray cast iron, or steel of usual brands. Consolidation of a shaft of the pump - manzhetny. The pump and the electric motor are mounted on the general base frame or a plate; the mass of the base has to exceed the mass of the unit in 2... 3 times; transfer of a rotary motion from the electric motor to the pump is carried out by klinoremenny transfer. Restrictions of use of vacuum pumps AVZ vacuum pumps AVZ are unsuitable for pumping of the hostile environment reacting with lubricant oils and ferrous metals; vacuum pumps AVZ are unsuitable for transfer of environments from one capacity in another; maximum permissible concentration of vapors of hydrocarbons, oil fog in air has to conform to safety requirements OST 38.01402-86; are not allowed: operation of the pump without cooling; pump overheat; emission of the pumped-out gases in the room where units are installed; launch of the unit without preliminary filling of an oil separator with vacuum oil; excess of output pressure in relation to atmospheric more than on 9,3 kPa (70 mm.rt.st).
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Pumps vacuum (VVN, AVZ, NVZ) for gases and air
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