0, the bypass valve is not closed tightly shut tight bypass valve filter does not work 1, inlet outlet valve is not open to open the valve 2, filter badly clogged exchange the filter element 3, the filter is damaged replace the filter 4, pipe blockage repair the pipe with the other Compared to oil, ROYCO 800 Series lubricants has the following advantages. 7 excellent lubricating properties, effective protection of the compressor components from scratches and excessive wear of the best compressor Germany | Germany compressor |?? Pneumatic Machinery Xingchang provided by Qingdao Xingchang Pneumatic Machinery Co., Ltd. Qingdao Xingchang Pneumatic Machinery Co., Ltd. (www.xckyj.com) strong, credible, in Qingdao, Shandong Province and other industry-specific equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Xingchang pneumatic machinery into the brilliant and you work for a better future!