Ball valve is currently the most widely used mechanical product in all valve markets. It is mainly composed of valve body, valve seat, ball, valve stem and transmission device. The actuating device drives the core to rotate to achieve the function of switch or adjustment. In the chemical, environmental protection, water treatment, urban construction, machinery, …
一.Overview of electric ball valve: The function is a kind of pipeline pressure component for industrial automation process control, usually used for remote opening and closing (connecting and cutting off the medium) control of the pipeline medium. Features: It adopts an integrated structure and can control the operation with single-phase power supply AC220V and DC …
The performance of the high pressure casting globe valve:Because the change of the valve seat passage of the high-pressure casting globe valve is proportional to the valve flap stroke. The opening or closing stroke of the valve stem of the high-pressure shut-off valve is relatively short, and it has a very reliable cut-off function, and …
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On December 21th, the 13th Industry Salon Sharing Conference and 2019 Environmental Engineering Technology Summit hosted by COVNA was grandly held at Yuelai Garden Hotel in Dongguan. As the largest environmental protection Industrial salon in South China, this event attracted nearly 500 business representatives from all over the country, including Beijing, Shanghai, Xi’an, Fujian, and …
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The valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, oil, liquid metal and radioactive media. The demand for valves is on the rise, and energy demand in developing countries is the main factor driving the demand for valves. At present, several types …
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Since 2016, the COVNA Salon has successfully held 12 sessions in Dongguan, Foshan, Shenzhen, Guangzhou and other places. More than 500 people, including experts, sales and technical staff, participated and were reported by multiple media. The 13th COVNA Industry Salon Sharing Conference and 2019 Environmental Engineering Technology Summit will be grandly opened at Liaobu Yuelai …
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The electric valve is composed of a valve body and an electric actuator. The electric valve can be used to control the opening and closing of the valve body to control the pipeline fluid. Because of its simple operation, long service life, and wide application range, electric valves have a wide range of applications in …
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1.How it works Solenoid valve is an electromechanical controlled valve. Motorized valve is operated by an electric signal coming from the electric motor to open, close, or stop the valve in the process of operation. 2.Types of valve 2.1 Solenoid Valve Two-way solenoid valve: The valve has an inlet and an outlet connected to the …
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We know that even a strong individual cannot make a great company, and an efficient team with the same frequency is the cornerstone of the rapid development of the company. Sometimes you find that when you come up with a very good strategy, your team can’t understand it and the execution is greatly reduced. This …
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In the early autumn, the COVNA Belt and Road team set off from the Chinese headquarters again. After 10 hours of long-distance flight, we arrived in the Russian capital Moscow with excitement. During this trip, we will visit the old customers who have cooperated with COVNA for many years and carry out a series of …