国产综合激情在线观看视频_女人午夜在线视频_日韩欧中文字幕_图片区亚洲欧美制服_欧美色色综合_福利姬液液酱喷水_扶着美妇的臀从后沉入_久久黄色录像_国产在线观看不卡日本_亚洲六月丁香六月婷婷

Structural features: 

    The 2X rotary vane vacuum pump has a two-stage structure. Its working performance is composed of high-pressure and low-pressure stages. The suction port of the 2X rotary vane vacuum pump is connected to a vacuum container or vacuum equipment, and a large amount of gas in the container will be sucked in during operation. And discharge. When the equipment obtains vacuum, the high-pressure stage exhaust valve plate will be closed, and the gas sucked by the high-pressure stage will be transferred to the second stage, and then sucked and discharged through the second stage, so that the vacuum equipment can obtain a certain vacuum. The technical parameters of the 2X rotary vane vacuum pump are 6×10-2pa. According to the user's usage, it can be equipped with a vacuum booster pump. The 2X rotary vane vacuum pump can be used as the backing pump. Due to the enhanced pumping power of the booster pump, the backing pump is continuously pumped out, which can make your equipment obtain a higher vacuum. . 2X type rotary vane vacuum pump is suitable for metallurgy, chemical industry, electric light source vacuum, vacuum coating, food packaging, medicine, blister, electronics, drying and other fields.

  

    l, 2X type rotary vane vacuum pump is one of the basic equipment for gas extraction. It can be used alone or connected with ultra-high vacuum pumps such as booster pumps, diffusion pumps, molecular pumps, etc. as a backing pump. It is widely used Electronic device manufacturing, real

Air drying, filtration, dipping, coating, welding, smelting and laboratory equipment, etc.

　　2, 2X rotary vane vacuum pumps are allowed to operate for a long time under the condition that the ambient temperature is 5℃～40℃ and the inlet pressure is less than 10 Torr. When the relative temperature of the pumped gas is greater than 90%, the gas ballast valve should be opened.

　　3, 2X type rotary vane vacuum pump air inlet continuously open to the atmosphere should not exceed 3 minutes.

　　4 and 2X rotary vane vacuum pumps are not suitable for pumping out gases that are corrosive to metals, chemically react to pump oil, and contain particulate dust, as well as gases with excessive oxygen, explosive, and toxic gases.

Operating instructions

　　 1. Check the oil level. The oil level should be in the center of the oil standard. If the oil level is too low, it will not be able to seal the exhaust valve and affect the vacuum degree; if the oil level is too high, it will cause fuel injection when starting. Before running, take off the V-belt, correct the rotation of the motor, and then start it to avoid fuel injection. During operation, the oil level rises slightly, which is a normal phenomenon. When the amount of oil is insufficient, use No. 1 vacuum pump oil and add it from the oil filling hole. The oil needs to be filtered to prevent debris from entering and blocking the oil holes.

　　 2, 2X type rotary vane vacuum pump pump port if the solenoid valve is installed, it should act at the same time with the pump.

When the 　　3 and 2X rotary vane vacuum pumps are started, the start button should be activated once or twice to make the oil pressure in the pump cavity reach the oil tank, and then start the operation formally.

　　4. When the ambient temperature is high, the oil temperature increases, the viscosity decreases, and the saturated steam increases, which will cause the ultimate vacuum to drop, so ventilation and heat dissipation should be strengthened.

　　 5. To check the ultimate vacuum of the 2X rotary vane vacuum pump, a compression mercury vacuum gauge should be used. The vacuum gauge should be directly connected to the pump port, and the ultimate vacuum will be reached within 30 minutes of operation.

　　6, 2X type rotary vane vacuum pump should close the valve at the suction port before stopping the pump to isolate it from the vacuum system, and then stop the pump.

　　7. If the 2X type rotary vane vacuum pump with gas ballast valve contains more condensable steam in the suction gas, the gas ballast valve should be opened.

 

Performance parameter table: