JZJPX(H) is the roots vacuum pump as the main pump, rotary vane (or slide valve) vacuum pump as the former pump vacuum acquisition equipment, its structure is compact, easy to operate. Because what ZJ had (ZJP) roots pump must be in front of the system is level rotary vane vacuum pump (or valve) to the roots vacuum pump to allow start after pressure can only start roots pump work, therefore, generally in the unit air inlet must be installed an electric contact vacuum gauge, in order to control the roots pump start-up pressure and working pressure range, namely the current pump rotary-vane vacuum pump (or valve) starts to drainage system, when the system pressure the roots vacuum pump inlet pressure to allow the start-up pressure value of roots pump, roots vacuum pump can start the work
JZJPX(H) type rotary vane (slide valve) vacuum pump with front stage rotary vane (slide valve) for vacuum unit, is an h-type slide valve vacuum pump designed for vacuum smelting and vacuum furnace with large amount of dust, which is innovatively developed by introducing foreign advanced technology. Therefore, it is especially suitable for the industry of refining beauty and titanium

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