久久久人妻一区精品久久久,最新国产福利片在线观看,亚洲欧美v人片在线观看,u久久免费看黄a级毛片

Your Position: Home > News > Company News

Precautions before starting operation of roots pump of oil filter

2019/8/1??????view:

  Roots pump can not be used alone before starting operation. It must be equipped with a pre-vacuum pump recommended by our company's professional and technical personnel before it can be put into use.

  When lifting a vacuum pump, it can be lifted at the screw of the lifting ring matched by the pump. A complete set of vacuum oil filters shall not be lifted at the screw of the lifting ring matched by the pump. If the pump has no lifting screw, the vacuum pump can be carried by forklift or other means of transport.

  The motor connecting frame and motor fan protective cover of the pump are semi-enclosed. It is strictly forbidden to use hands or other tools to contact the high-speed rotating coupling and motor fan blades when the pump is running, so as to avoid unnecessary harm to you.

  There shall be no restriction on the exhaust of vacuum pumps or the installation of any cut-off valves in the exhaust pipeline. Vacuum pump is also a compressor. If the motor has no overload protection device when the pump has a high inlet pressure, it will produce extremely high pressure at the outlet of the vacuum pump. This high pressure will cause damage to the vacuum equipment or harm to the personnel.

  Vacuum pumps are precision machines. When installing the intake and exhaust pipes or valves of vacuum pumps, it is strictly forbidden that any foreign bodies enter the pump chamber to avoid unnecessary serious consequences. Once a foreign body enters the pump chamber, the foreign body inside the pump chamber must be cleaned up, otherwise starting the vacuum pump is strictly prohibited. If the quality of the intake and exhaust pipes is too heavy, they must be supported to avoid the impact on the accuracy of vacuum pumps.

  Pumps should not be used to suck gases containing more than 20% oxygen and other flammable and explosive gases. Unless appropriate protective devices and other inert gases are used, explosions will occur and vacuum pumps will be destroyed and personnel injured.

  When Roots vacuum pump is running, it is strictly forbidden to open the oil tank, add and unload the oil screw plug, otherwise it will cause serious damage to the pump.

  In order to prevent the oil mist discharged from the front vacuum pump and the long-term impact of the pumped gas on the field operators and the environment, the gas discharged from the vacuum pump should not be directly discharged into closed workshops or buildings without good ventilation.

  When the pump is running, it is not allowed to touch the hot surface of the vacuum pump directly by hand. Generally, when working at low pressure, the surface temperature of the pump should not exceed 90 C. When operating at high pressure, the surface temperature of the pump may exceed 100 C.

  Before disassembling or maintaining the vacuum pump, it is necessary to cut off the power supply of the vacuum oil filter and allow the power supply to be connected only after confirming that the vacuum pump has been fully installed.

  Suddenly starting the vacuum pump during the maintenance of the vacuum pump will cause damage to the equipment or personnel.


精品国产污网站免费观看| xxxxxhd亚洲日本hd| 少妇特黄a一区二区三区苍| 欧洲尺码和亚洲尺码的由来 | 亚洲福利片视频在线观看| 村长那又黑又粗的东西| 强壮公弄得我次次高潮厨房| 日韩 欧美 成人 一区| 日本无码蜜桃波多野结衣| 久久婷婷综合国产色啪| 99国产精品一区二区蜜臀| 国产精品自产拍在线观看| 婷婷三区| 国产美女裸体无遮挡免费视频| 狠狠色噜噜狠狠狠狠av不卡| 亚洲老熟妇av熟妇在线| 性无码免费公开在线视频| 免费a级毛片无码无遮挡| 精品无码久久久久国产| 国内揄拍国内精品少妇| 女人被爽到呻吟的视频动态图| 在线免费观看最新电影| 亚洲国产欧美日韩一区二区| 亚洲福利在线无码天天看| 日本高清在线视频www色| 国产十次啦综合中文在线| 成人av视频免费在线看| 插鸡巴网站一区| 国产人久久人人人人爽| 少妇被粗大猛进进出出| 在线āv视频| 99热这里只有精品77| 日本乱中文字幕在线系列| 新chinese无套小帅ktv| chinese 真实露脸自拍| 老熟妇仑乱视频一区二区| 中文字幕日韩精品 一区| 国产成人综合亚洲精品国产| 国产精品98福利小视频| 挡不住的风情在线观看| 好好热精品视频在线观看|