Gas Ballast Filter 730501(C31/1) for Rietschle Vacuum Pump

Gas Ballast Filter 730501(C31/1) for Rietschle Vacuum Pump  

A gas ballast device for an oil sealed mechanical rotary vane vacuum pump prevents vapor condensation in the outlet port region of the low vacuum stage of the pump as a vane cyclically approaches the outlet port, whereby molecules of condensed vapor in the oil do not flow back to the inlet port of the low vacuum stage through the oil seal between the inlet and outlet ports. A flow path for atmospheric air leading to the outlet port region includes a tortuous, constricted fluid passageway. An outlet passage connecting the tortuous, constricted fluid passageway to the outlet port region is positioned so that an orifice thereof into the outlet port region is filled with and sealed by oil except during a small portion of each vane cycle immediately after the vane passes the orifice, whereby no movement of mechanical parts is employed to control air flow in response to the cyclical movement of the vanes past the orifice. The flow path for atmospheric air can be adjusted or closed at will, and includes a sleeve through which a portion of the passageway extends. The sleeve is spring biased in an upward direction to be normally urged against an air filter body, threadedly secured to a housing for the pump. The spring bias and turning of the air filter body move a plug relative to a seat in the outlet passage. The air filter body may be removed without removing the sleeve from the housing.  

1 Shrinkings ,Professional Cartons or Poly Bags;

2 Fast and Specialized Shipment;

3 Elaborate and Careful Packing;

4 Cautious Load;

1 We can cope with any problems that you meet related to our products ;

2 Located in Shanghai, our company makes full use of the advantages of Shanghai as China's largest economic,financial, trading and shipping center to develop foreign trade.

3 We have been serving for our customer since 2007.

4 All of us at Shanghai Greenway have a vast experience in the vehicles and industrial fields.

5 We have access to all the information necessary to provide you with quotations and service.

Shanghai Greenway was founded in 2007,offers both name brand filters and our own high- quality filters,including air filters;liquid filters;compressor and vacuum pump filters;dust collector filters and hydraulic/oil filters. We decided to open the premises in the China after considering the strategic location in the world. Thanks to an accurate selection of suppliers based on quality, Greenway has transformed itself into an important brand manufacturing industrial filters over the years, making and distributing its own products in China and throughout the whole world. With more than 25,000 filters available for immediate shipment, but the prices up to 40% lower than your local dealer.Our filtration products are used worldwide by OEM's and end users in virtually every industrial application. We are committed to meet all your needs and solve any technical problems you may encounter with your filters. Our exceptional products and vast knowledge of filter makes us the preferred choice for our customers.

Your Best Source for Name Brand Filtration Products & High-Quality replacements.

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