Solenoid valve classification
  • Feb 17, 2022

Solenoid valve classification

Solenoid valve are divided into three categories in principle, direct-acting, step-by-step direct-acting, and pilot-operated. 1. Direct acting solenoid valve There are two types: normally closed and normally open. The normally closed type is in a closed state when the power is off. When the coil is energized, an electromagnetic force is generated, so that the moving iron core overcomes the spring force and the stat

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Solenoid valve basics
  • Feb 15, 2022

Solenoid valve basics

Solenoid valve is an industrial equipment controlled by electromagnetic, which adjusts the direction, flow, speed and other parameters of the medium in the industrial control system. When the solenoid valve is not powered on, the valve needle blocks the passage of the valve body under the action of the spring, and the solenoid valve is in the cut-off state. When the coil is powered on, the coil generates a magneti

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Happy Chinese lunar new year in 2022-COVNA is resuming to work today
  • Feb 10, 2022

Happy Chinese lunar new year in 2022-COVNA is resuming to work today

Happy Chinese lunar new year in 2022-Year of the Tiger Happy Chinese lunar new year and wish you have a wonderful beginning.We are resuming to work today, the production line is backing to work as well.Welcome for any inquiry for solenoid valves, pneumatic valves and electric valves. Chinese New Year Celebration is the most important celebration of the year. Chinese people may celebrate the Chinese New Year

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The key points of high quality globe valve purchase, brand and technical standards are indispensable
  • Jan 08, 2022

The key points of high quality globe valve purchase, brand and technical standards are indispensable

How to choose a globe valve? Before choosing a shut-off valve, you need to determine its purpose, whether the valve is used to regulate or stop the flow of fluid, and then you need to determine the type of medium circulating in the system: gas or liquid? Is the medium corrosive, chemically neutral, food or medical liquid requiring special hygiene conditions? When it comes to operating the valve, one needs to know w

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Hydraulic properties of globe valve
  • Jan 08, 2022

Hydraulic properties of globe valve

Globe valves are used for full opening or full closing. According to its function, it cannot be used as a throttling. Because in this case, due to the violent vibration when the medium passes through, the disc of the stop flash valve may be damaged and an accident may occur. However, the valve flap design of the throttle valve should consider the sealing performance when it needs to completely close the incense. T

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The difference between solenoid valve and electric valve
  • Jan 08, 2022

The difference between solenoid valve and electric valve

Solenoid valve is a type of electric valve; it uses the magnetic field generated by the electromagnetic coil to pull the valve core, thereby changing the on-off of the valve body, the coil is de-energized, and the valve core is retracted by the pressure of the spring. The electric valve simply uses the electric actuator to control the valve, so as to realize the opening and closing of the valve. It can be divided in

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