Chemvac Combination pump converts aggressive vapours into fine vacuum. Some chemical applications generate extremely aggressive vapours. This produces a strong condensate burden when operating a vacuum pump at pressures of 3 x 10-3 mbar. For this, chemvac combination pump is ideal. The combination pump consists of a rotary vane pump, which generates a fine vacuum, and a diaphragm backing pump, which handles the condensable vapours by generating a vacuum in the oil box of the rotary pump. In this way, condensation within the oil stages is prevented. This is essential to ensure the long service intervals and long life of the pump.
Chilled mirror digital dew point tester is inserted by drilling holes for accessing moisture content of concrete. This tester is the most commonly accepted instrument for measuring dew points of natural gas streams at field sites. It is sometimes used to resolve custody transfer disputes over natural gas quality. The dew point is visually identified and the chilled mirror is considered as a subjective instrument. An ideal dew point instrument would rely on objectively measured properties of the gas flow such as density, optical absorption, or temperature changes with pressure drop to identify the dew point.