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Reciprocating vacuum pump (also known as piston vacuum pump) the ultimate vacuum, single-stage 4 × 102 ~ i03Pa, two-stage up to 1Pa, pumping speed range of 45 ~ 20000ma / h, for the extraction of gas from the sealed container was pumping Gas temperature does not exceed 35 ℃. If you add auxiliary equipment, such as freezers, you can also draw steam. Reciprocating vacuum pumps larger displacement, and more for vacuum impregnation, vacuum treatment of molten steel, vacuum distillation, vacuum evaporation, vacuum concentration, vacuum crystallization, vacuum drying, vacuum filtration and concrete vacuum operations. Reciprocating vacuum pump structure shown in Figure 2-77, the working principle shown in Figure 2-78. Oil-free reciprocating vacuum pump due to the use of self-lubricating piston rings, seal ring, the cylinder without lubrication; the cylinder and the body plus oil compartment (the length of more than one stroke length), to prevent the body of lubricating oil along the piston rod Leakage into the cylinder, so the pumping system was pumping pollution-free. Oil-free reciprocating vacuum pump has vertical and horizontal two structures. The application of the pump is: the need to clean the vacuum environment; when the gas needs to be recovered, can be filled in the gas filled in the recovery of gas, in order to ensure the purity of the gas; when the extraction of flammable gas, can be filled into the isolation chamber Inert gas, so that air (combustion agent) can not leak into the cylinder, to avoid accidents. Reciprocating vacuum pumps are not suitable for the extraction of aggressive gases or gases containing particulate dust. If the exhaust gas contains dust, the filter must be installed at the pump inlet. Reciprocating vacuum pump type and basic parameters refer to JB / T 7675-2005.
wall mounted, hanging or Recessed are available. No matter it's to light the way to fire safety or to help your workforce identify the quickest exit, you will find the right solution for every environment.