The decrease of the vacuum degree of the vacuum pump means that the vacuum degree of the rotary vane vacuum pump measured at the moment is lower than the vacuum level of the factory index or the previous use. There are many reasons for the low vacuum level. Here are a few key facts. 1, the added rotary vane vacuum pump oil grades and the original is not the same. Different vacuum pump oil grades, as different grades of saturated vapor pressure within the oil is not the same, so the result is not the same. Solution: According to the product model specifications to replace the correct new vacuum pump oil. 2, was pumping gas temperature may be too high. The solution: to reduce the temperature of the gas being drawn, or you can add a corresponding heat exchanger. 3, the pump in the oil barrier or poor, the pump cavity does not maintain a certain amount of oil. Solution: check whether the smooth flow of oil, plus the same type of vacuum pump oil. 4, the other is also due to the low vacuum caused by the vacuum pump oil situation, that is, vacuum pump oil emulsification discoloration, or too dirty. The solution: Put all the vacuum pump oil pump clean, replace the same type of vacuum pump oil, and to be pumping gas in the water vapor and impurities do not enter the pump. 5, with the gap to change. This is the long-term exhaust gas containing dust, etc., resulting in increased wear between the rotating plate and the stator gap. Solution: check the gap is too large, replace the new parts.
Aluminium Profile for Air Duct flange And Air Conditioning
The application range of central air-conditioning and air duct machine is more and more wide. Compared with traditional wall-mounted air conditioners, one of the most prominent advantages is that it can realize concealed installation. Only the air outlet is left in the room to make the interior decoration style beautiful and unification. The air-conditioning air outlet frame and fan blades can be made of aluminum alloy material, which is cost-effective and moderately priced. In most central air-conditioning projects, the air outlets are made of aluminum alloy materials.
Air Duct And Air Conditioning Aluminum Profile
Air Duct And Air Conditioning Aluminum Profile,Air Duct Aluminum Profile,Air Conditioning Aluminum Profile
Zeyi Aluminum Co., Ltd. , http://www.zeyialuminum.com