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http://rootblowersmanufacturers.com/vaccum-booster.html Blow Kings Blowers Mechanical Vacuum Booster, import substitutes, are used in growing number of applications where fast pump down times are required, and environment or energy usage concerns, rule out any alternative pump selection. Blow kings Blowers, Vacuum Booster enhance the performance, ultimate vacuum and pumping speed of oil-sealed / water-ring / dry vacuum type of mechanical pumps, which are widely used in the industry. In this example a maximum pressure ratio of 25:1 is obtained at an outlet pressure of about 1 mbar. The fall off in pressure ratio either side of the peak can be attributed to conductance effects and to back-leakage of a proportion of the pumped gases. This Vacuum Booster latter effect increases with increasing outlet pressure.
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