First, the choice of the principle of vacuum pump oil viscosity Vacuum pump oil viscosity is one of the important factors in the performance of the vacuum pump. The viscosity of a liquid is the resistance to liquid flow, or the internal friction of a liquid. The greater the viscosity, the greater the resistance of various parts of the movement speed, temperature rise, power loss; viscosity is too small, the pump sealing performance worse, causing gas leaks, vacuum worse. Therefore, all types of vacuum pump viscosity of the oil is extremely important choice, the viscosity of the oil is the principle of choice: 1, the pump speed is higher, the lower the viscosity of the choice of oil. 2, the larger the pump rotor speed, the lower the viscosity of the choice of oil. 3, the pump parts machining accuracy or friction between the smaller pieces of the gap, the lower the viscosity of the choice of oil. 4, the vacuum pump in high temperature conditions, the choice of viscosity of the oil is appropriate. 5, a cooling water circulation pump, the general choice of lower viscosity oil is appropriate. Second, the recommended vacuum pump oil viscosity range According to these principles, the viscosity of various types of vacuum pump oil recommended range is as follows: 1, Piston vacuum pump (W type) can use the general oil, with V100, V150 viscosity grade oil. 2, rotary vane vacuum pump (2X type) use V68, V100 viscosity grade oil. 3, Direct (high speed) rotary vane vacuum pump (2XZ type) V46, V68 viscosity grade oil selection. 4, slide valve vacuum pump (H type) V68, V100 viscosity grade oil selection. 5, the trochoidal vacuum pump (YZ, YZR) use V100, V150 viscosity grade oil. 6, Roots vacuum pump (mechanical booster pump) gear transmission system lubrication, optional V32, V46 vacuum pump oil. 7, other types of vacuum pumps, according to its speed, machining accuracy, the ultimate vacuum, the selection of the corresponding vacuum pump oil.
Cutting Machine For Construction
Cutting Machine For Construction,Hand Cutting Machine,Tile Cutter With Cutting Rod,Popular Ceramic Tile Cutter
NINGBO SANDING EDGE MECHATRONICS INDUSTRY AND TRADE CO., LTD , https://www.sandingedge.com