2X series two-stage rotary vane vacuum pump and x series single-stage / pole rotary vane vacuum pump is a mechanical pump vacuum seal. Small size, easy to use, low power consumption, high vacuum characteristics. Usually used to pump clean air or vacuum gas oil is not obvious chemical reaction. This type of pump can not be used for pumping high oxygen, explosive, corrosive and metal from the gas containing dust particles. If the pumped water vapor or gas containing particulate impurities, and water vapor impurities should be filtered through a filter. Rotary vane vacuum pump can be used alone, it can also be used as ultra-high vacuum pump before use. It features mechanical lubricant for sealing medium, high vacuum (theoretical absolute pressure up 0.06Pa). Low speed operation, lower noise during operation of pump and wear rate. Rotor, rotary vane, the stator using carbon steel, increasing the durability and life of the pump. High vacuum, it can be used alone to require a higher degree of vacuum applications. Vacuum oil as the medium run, can not be used to suck the oxygen content is too high, with corrosive gases, water vapor and particulate impurities. Applications use occasions extruded plastic, plastic, plastic, polyethylene, rubber, tires and other vacuum CNC manufacturing plants, glass machinery factory, engraving machine, wood processing plants, electronics factories and other occasions vacuum-packed food, pharmaceutical and Other plants need to save laboratory vacuum evacuated Institute, research institutions and other occasions vacuum timber preservation, museums (painting, cultural relics, antiques save) Other Metallurgy and mold manufacturing, electrical components plant, electric light plant, resin plant Pumping speed and other performance parameters Model L / S limit absolute pressure Pa oil consumption power Kw L Inlet diameter mm cooling GW kg Dimensions L × W × H mm 2X-4 4 0.06 0.55 1.0 Ф25-cooled 90 570 × 311 × 397 2X-8 8 1.1 1.5 Ф32 air-cooled 110 588 × 395 × 390 2X-15 15 1.5 2.8 Ф50 air-cooled 220 792 × 531 × 540 2X-30 30 3.0 4.2 Ф65 air-cooled 370 920 × 638 × 656 2X-70A / B 70 5.5 4.2 Ф80 water-cooled 480 900 × 638 × 724 X-100A / B 100 1 7.5 13.5 Ф100 water-cooled 570 1100 × 720 × 845 general vacuum pump design and performance parameters of all tests are carried out under standard atmospheric pressure refers to the environment . If the altitude change, its actual performance will change. Vacuum degree = local atmospheric pressure - absolute pressure. Formula, is determined by the absolute pressure pump manufacturing processes and product models, once formed, is generally a fixed value. Currently available liquid ring vacuum pump absolute pressure is generally about 3300Pa. Therefore, if you want to calculate the vacuum pump a standard atmospheric pressure is able to work properly in different altitudes using, you need to know the local altitude value. We know that the lower the atmospheric pressure at higher altitudes in the region. Here is the country most of the major urban areas of the atmospheric pressure value, for the selection of the calculation reference :( Unit Conversion: 1mmHg = 1 Torr = 133.3Pa) names altitude atmospheric pressure (mmHg) names altitude atmospheric pressure (mmHg) Summer Winter summer Winter Harbin 146,741,755 Taiyuan 784,689,699 Changchun 237,734,747 Jinan 55,750,767 Jilin 184,733,754 Nanjing 9750766 Shenyang 42,750,766 Hefei 24,750,767 Fushun 82,746,761 Shanghai 5,753,769 Jinzhou 66,749,765 Hangzhou 7754769 Yingkou Fuzhou 4,754,770 88,747,759 65,748,763 Dalian, Luoyang 138,741,757 1,063,667,676 Hohhot Hankou 23,751,767 Urumqi Yichang 654,684,691 70,745,761 443,718,734 Karamay Changsha, Lanzhou 81,747,764 1,517,632,639 103,746,765 Hengyang Yumen 1526 Nanchang 49 750 764 635 642 112 663 672 Silver State Guilin Xining 167,739,752 2,261,581,582 6,753,764 Guangzhou, Xi'an, Chengdu 397 718 734 506 710 755 52 749 765 Beijing Kangding 2616556554 Tianjin, Kunming 3753769 1819606608 Tanggu 6754 770 Guiyang Datong 1071666673 1067666675 844683692 Lawrence Of course, high altitude areas should consider the impact on the motor. Generally, elevation has a greater impact on motor power, due to the high altitude, thin air gap between the rotor and stator magnetic ability, directly affect the rated power output of the motor. Motor drives the load capacity is reduced, while the heat is increased, causing reduced efficiency. Therefore, the high altitude select pump should consult whether manufacturers should increase with altitude motor or motor power. Doing so may result in damage to the motor or pump is not working properly.