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  • Evacuating the refrigeration system operating methods
    Evacuating the refrigeration system operating methods In the air conditioner vacuum operation, split type vacuum operation relative to the overall air conditioner (window unit), it is simpler. Because there are two shut-off valves on the split air conditioner outdoor unit on low or high p...

  • Advantages of liquid ring vacuum pumps in ketene Aroduction
    Advantages of liquid ring vacuum pumps in ketene Aroduction Ketene production application liquid ring vacuum pump gas transportation at least has the following advantages: First, liquid ring pumps for continuous long-term operation, thanks to a circulating medium transformer oil, transfo...

  • Updating and development of coal industry vacuum requirements
    Updating and development of coal industry vacuum requirements General adsorbed on coal bed methane, to go through the drainage, blood pressure, gas three production processes. Application of vacuum mines from the Soviet Union's SZ series, to our self-developed SK series, to today dominate 2...

  • Oil pump works
    Oil pump works In the vacuum pump oil pump vacuum to obtain not only as a medium, but also on the mechanical friction point lubrication, cooling and sealing. 1. The low vapor pressure This is the most important performance vacuum pump oil, a high degree of vacuum due to the requir...