How to choose copper valve
2021/06/24
Selection of copper valve:
1. According to the selection of control functions, various valves have their own functions, and attention should be paid to their corresponding functions when selecting.
2. According to the selection of working conditions, the technical parameters of commonly used valves include working scale pressure, maximum allowable working pressure, working temperature (minimum and maximum temperature) and medium (corrosiveness, flammability). When selecting, pay attention to the above-mentioned parameters of working conditions and The technical parameters of the valve are consistent.
3. Choose according to the installation structure. The installation structure of the piping system includes pipe thread, flange, ferrule, welding, hose and so on. Therefore, the installation structure of the valve must be consistent with the installation structure of the pipeline, and the specifications and dimensions must be consistent.
2021-06-24
Application characteristics of double gate valve
The application of the double gate valve is undoubtedly very helpful to the pipeline system software.
2021-06-24
Introduction to the application and characteristics of two-way hard-touch hard butterfly valve
Two-way hard-to-hard butterfly valves are widely used in industrial pipelines such as low pressure, medium pressure, high pressure, steel metallurgy, petrochemical industry, electric power, etc., to block or regulate the flow of media. This article introduces the structural characteristics and precautions of the two-way hard-touch hard butterfly valve.
2021-06-09
Copper stocks continue to decline today, Zijin Mining drops more than 5%
Copper stocks continued to decline today. As of press time, Zijin Mining fell 5.28% to HK$10.4; China Gold International (02099) fell 4.79% to HK$22.85; China Nonferrous Mining (01258) fell 4.66% to HK$3.48; Jiangxi Copper Industry shares (00358) fell 2.2% to 16.04 Hong Kong dollars.
