Leybold WSU251 Roots pump repair _ _ Leybold Leybold SP630 screw repair

 Roots vacuum pump Notes 1, should first understand pumped gas composition Leybold WSU1001 Roots pump maintenance, gas, whether it contains condensable vapors, with or without dust particles, with or without corrosion, etc., if corrosive please use stainless steel vacuum . When selecting a vacuum pump, need to know the gas composition, select the appropriate pump for pumped gas. If the gas contains vapor, particles, and corrosive gases, should consider the installation of auxiliary equipment at the inlet of pipeline pump, such as a condenser, dust and the like. 2, the working pressure Roots vacuum pump vacuum equipment should meet the ultimate vacuum and pressure requirements. Such as: a vacuum drying process requirements 10mmHg (absolute pressure) working pressure, use of vacuum limit pressure should 2mmHg least, preferably less than 1mmHg. Usually chosen higher than the ultimate pressure of the pump working pressure of the vacuum apparatus to half an order of magnitude. 3, the correct choice of the operating point of Roots vacuum unit. Roots vacuum pump unit normal operating range for maximum suction pressure - the ultimate pressure × 5. Example: the normal operating range JZJ2B150-2.1 Roots water ring vacuum pump is: 6000Pa ~ 125Pa, the main scope of work after normal working pressure range of the pump is turned on Leybold WSU2001 Roots pump repair, the unit within the scope of this work optimum efficiency. 4, the vacuum pump in its work under pressure, should be able to discharge all the amount of vacuum equipment, process gas produced. 5, according to the actual working conditions appropriate choice of unit configuration. For example: The maximum pumping speed and ultimate pressure JZJ2B300-4.1 JZJ2B300-2.1 units and units are the same, the difference is the scope of their work and power consumption of different Leybold, the normal operating range for 2000Pa ~ JZJ2B300-4.1 crew 125Pa, and the normal operating range of the unit JZJ2B300-2.1 5000Pa ~ 125Pa, the normal operating range JZJ2B300-2.1 crew obviously wider, but its power consumption is greater. If you can confirm that the system is working pressure pumping <2000Pa, should be preferred JZJ2B300-4.1 unit to save energy. ZJ series Roots vacuum pump, a non-rotating inner variable capacity compressor vacuum pump, also known as mechanical booster, the advantage is with high pumping speed at low inlet pressure, which is currently available in high One of the main vacuum suction device, which works similar to the Roots blower, mainly by a pair of synchronized high-speed rotation of the "8" shaped rotor and pump chamber consisting of two semi-circular (Figure 1). ZJ series Roots vacuum pump exhaust alone can not be with a pump (such as slide valve pumps, rotary vane vacuum pumps, water ring vacuum pumps, oil ring pumps, etc.) used in tandem Leybold WSU251 Roots pump maintenance until being pumped system When the pressure is pumped to the front stage Roots vacuum pump can accept pressure can begin to work, otherwise it will overload and overheating and damage. Front air intakes on the front stage pump series ZJ series Roots vacuum pump unit can increase the degree of vacuum before the pump, greatly improved in the effective pumping speed range. Minimum limit pressure ZJ series Roots vacuum pump ultimate pressure is determined by the pre-pump, the technical parameters of the data table configuration is standard (equipped with two-stage vacuum pump mechanical seal) is used. ZJ series Roots vacuum pumps in a wide pressure range (1 ~ 1 × 10 4pa) have a greater pumping speed was pumping gas for dust and water vapor does not contain sensitive, so widely used in vacuum casting, vacuum melting vacuum degassing, vacuum coating industry and the chemical and pharmaceutical industry, vacuum distillation, vacuum drying. Leybold WSU251 Roots pump repair _ _ Leybold Leybold SP630 screw maintenance provided by Lei Bo Electrical Equipment Co., Ltd., Dongguan. Electrical Equipment Co., Ltd., Dongguan Bo Lei (www.dgleibo.com) strong, credible, in Dongguan, Guangdong vacuum pump industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Lei Bo electrical equipment and you hand into the brilliant, for a better future!