Knowledge About Valves

  • What Is Scotch Yoke Pneumatic Actuator?

    What Is Scotch Yoke Pneumatic Actuator?

    The Scotch Yoke pneumatic actuator is a stroke piston-type actuator, which is suitable for the on-off or metering control of the valve with a 90°rotation angle, like ball valve, butterfly valve, etc. By filling compressed air into the cylinder, the piston is pushed to move linearly. The piston us...
    Read more
  • Top 5 Electric Butterfly Valve Suppliers

    Electric butterfly valve refers to a butterfly valve equipped with an electric actuator. The valve is opened or closed by being driven by an electric actuator. Can help you easily realize industrial automation. COVNA group is a specialist of automated actuators and valves in China with 20+ years...
    Read more
  • TOP 5 Stainless Steel Automatic Ball Valve Manufacturers In UK

    TOP 5 Stainless Steel Automatic Ball Valve Manufacturers In UK

    Stainless steel automatic ball valve widely used in waste treatment, wastewater treatment, power plant, food and beverage, and so on. COVNA create and supply all kinds of automatic ball valve for you like food grade type, 3-piece type, etc. Any demand for valves, welcome consult us at sales@covna...
    Read more
  • Corrosion Of Metal Valve And Application Of Synthetic Material Valve

    It is well known that metal corrosion damage has a considerable impact on valve life, reliability and service life. The action of mechanical and corrosive factors on the metal greatly increases the total wear of the contact surface. The total amount of wear on the frictional surface of the valve ...
    Read more
  • How To Install The Control Valve?

    Control valve is an automated device for precise regulation of flow. Available in pneumatically operated type and electrically operated type. In this article, we will introduce to you how to install the control valve for your reference. Let’s check it out! Read the manual Read the Instructi...
    Read more
  • How Butterfly Valve Works

    Butterfly valves are one of the most commonly used industrial valves at present. The butterfly valve and the ball valve belong to the quarter-turn valves series. We only need to turn the valve stem a quarter turn, and the disc will rotate 90 degrees around the valve stem to open or close the valv...
    Read more
  • 5 Actuated Knife Gate Valve Manufacturers

    5 Actuated Knife Gate Valve Manufacturers

    The opening and closing part of the knife gate valve is a gate, the movement direction of the gate is perpendicular to the direction of the fluid, and the medium is cut by a blade-shaped gate that can cut fiber materials. Therefore, the knife gate valve is very suitable for controlling viscous me...
    Read more
  • Top 5 Actuator Gate Valve Manufacturers In Italy

    Top 5 Actuator Gate Valve Manufacturers In Italy

    The gate valve is a linear valve. The gate valve can only be fully opened or fully closed, which is suitable for transport and shut-off the medium.  COVNA create and supply actuator gate valves like electric gate valves and pneumatic gate valves for your projects.  Helping you increase productivi...
    Read more
  • Conventional Electric Actuators VS Miniature Electric Actuators

    The electric actuator is automated mechanical equipment used to control the opening and closing of ball valves, butterfly valves, globe valves, gate valves, plunger valves, etc. With the advancement of science and technology and the increasing demand for production efficiency, the demand for ele...
    Read more
  • Top 6 Electric Automated Actuator Manufacturers

    Electric automation actuator is a device used to help industrial automation. It can achieve the purpose of remote control by receiving or feeding back signals. COVNA is an automatic actuator and valve manufacturer from China. We have 22 years of experience in the automation valve industry. We bel...
    Read more
  • How To Maintain The Valve?

    A valve is a device for controlling fluids, gases or solids. Regular maintenance can increase the service life and durability of the valve. In this article, we will show you how to maintain the valve. Why Maintain The Valve? 1. Save money Regular maintenance may cost money, but the maintenance co...
    Read more
  • COVNA Electric Actuator Valve For Irrigation

    COVNA Electric Actuator Valve For Irrigation

    Agriculture is the most important industry in the world, and the development of agriculture is related to the food and clothing of people all over the world. However, there are still many agriculture models that use artificial irrigation. This mode will cause 50% of the water to be wasted, and it...
    Read more
Write your message here and send it to us
Leave Your Message
Write your message here and send it to us