hotline400-6611-885
The contact：Mr. Zhuo1) material of valve body, valve cap, flange, should be selected according to conditions of use and manufacturing requirements, and shall comply with GB, 12229 GB, 12228 GB and 12230 GB 3077.2) bolts, stud material available A5, 25, 35, 30 crmoa and 40 MNVB, etc., should be selected…
If you haven't check carefully before you install the wafer electric butterfly valve valve usage and performance specification so the wafer electric butterfly valve are likely to have the following several kinds of common failures: valve cannot reversing or reversing slow, gas leak,…
Specific analysis of electric valves:With the continuous development of science and technology, the market of electric valve products in China is also developing in the direction of high technology content, high parameters, strong corrosion resistance and long service life. Accordin…
In the low pressure cut-off valve is generally low in higher, truncation packing don't stress, reduce the rate of leakage, can prolong service life.The cut-off valve of general > DNA100 can use high in low out; Large diameter and high pressure condition with low into higher close th…
Reasons for Leakage of Valve Packing1. The packing is not suitable for use in high pressure or vacuum, high temperature or low temperature.2. Installation of packing is not correct. There are some defects, such as replacing small size with large size, bad spiral winding joint, tight…
The contact：Mr. Zhuo
Mobile：021-31007718
Phone：400-6611-885
Address：23 Blocks of Song Steam Highway 2183, Shihudang Town, Songjiang District, Shanghai
Site map（baidu / google） For the record：ICP备76876号
