With the rapid development of social economy, technology and intelligence have penetrated into our production and life. Based on the valve manufacturing industry for 23 years, COVNA has successively launched solenoid valves, manual valves, pneumatic valves, and the series of electric intelligent valves that have been importantly promoted in the past two years! Among these industries, agriculture, as one of the key
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From April 19th to 21st, 2023, the 24th China International Environmental Protection Exhibition (CIEPEC) officially opened at the Shanghai New International Expo Center. As one of the most influential environmental protection exhibitions in China, the Shanghai Environmental Protection Exhibition attracts numerous domestic and international environmental protection companies and professionals to visit and exchange eve
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Water treatment is a critical process that ensures access to safe drinking water for people around the world. The treatment process removes contaminants, such as bacteria, viruses, and chemicals, from water sources, making it safe for consumption. In the treatment process, valves play a crucial role in controlling the flow of water and chemicals through the various stages of the treatment process. The process
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What is a solenoid valve and how does it work? A solenoid valve is an electromechanical device used to control the flow of liquid or gas in a system. It is made up of a solenoid, which is a coil of wire that produces a magnetic field when an electric current is passed through it, and a valve, which regulates the flow of fluid. When an electric current is applied to the solenoid, it creates a magnetic field that
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Overview 1.1 Main content: This maintenance guidebook specifies the safety precautions, technical requirements, and implementation steps that should be taken into account during the daily maintenance, troubleshooting, and replacement of the pneumatic control valve used online. Other types of control valves can also refer to this guidebook for use. 1.2 Basic components: The pneumatic control valves consist of two
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Hello, dear friends. The 24th China International Environmental Protection Exhibition is coming. We would like to invite you to participate in the lExpo China, which will take place from 19th to 21st April 2023 at the Shanghai World Expo Exhibition & Convention Center. We will be bringing our latest catalog and new valve products to the show. We are sure that you also have a strong interest and passion for th
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