The main fault 1, piston oil-free air compressor piston rings and packing devices are aircraft without greasing. Under normal circumstances, after essentially pure compressed gas free of oil, but because of the oil scraper ring often scraping the oil is not complete, sealed well, often resulting in oil filler device even went on the piston ring, so that the compressed gas oil. In addition, the exhaust temperature is high, sometimes up to 200 ℃; cooler clogged, so that the cooling effect is not good; piston ring touches the oil, are particularly vulnerable to wear and tear; beat leak valve; cylinder liner wear. 2, screw-type air compressor screw air compressor malfunction little, as long as regular maintenance of oil separator, air and oil filters, screw air compressor brands, we can ensure their normal operation. Water-cooled piston compressor components required air cylinder, intercooler, oil cooler after cooler and so on. To the cylinder and the intercooler, the cooling of one of the purposes is to reduce the temperature of the exhaust gas, the exhaust gas temperature does not exceed the allowable range. After seen, air compressor piston compressor without water brand, cylinders and intercooler are not cooling, and exhaust gas temperature compressor dramatically. This will not only cause the loss of the cylinder lubricating oil lubricating properties, so that rapid wear of moving parts, and make lubricants break down, oil is volatile component is mixed with air, cause a fire or explosion. Piston air compressor works: for reciprocating movement of the piston within the cylinder air compressor brand right authority, the pressure inside the left chamber of the cylinder piston below atmospheric pressure pa, the intake valve open, the outside air intake cylinder, This process is called compression process. When the cylinder pressure is higher than in the outlet air duct pressure p, the exhaust valve opens. Compressed air supplied to gas pipelines, a process known exhaust process. Reciprocating movement of the piston is driven by an electric motor slider-crank mechanism formed. Converting the rotational movement of the crank sliding - reciprocating motion of the piston. For oil coolers, the compressor without water will not get a good cooling lubricants, oil temperature increase. In this way, ranging from the lubricating oil viscosity decreased lubrication performance degradation, wear and tear of moving parts and reduce machine life and increases power consumption; while in the lubricating oil decomposition, volatile components in oil mixed with air, causing a series of accidents. In short, the piston compressor is running, the cooling is an essential part, should always pay attention to the cooling water, once without water must be immediately stopped and checked. Hengyang brand air compressor, air compressor Qin Wei, Which brand of air compressor provided by Compressor Co., Ltd. Xianyang Qin Wei. Xianyang Qin Wei Compressor Co. (www.xykyj.cn/) is Xianyang, compression, separation equipment leader, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Qin Wei Pneumatic leadership with the staff warmly welcome all inquiries negotiations to create Qin Wei Pneumatic better future.