Maintenance of the valve
Valves are not only used in a wide range of industries, but also in different environments, and some valves in harsh working environments are prone to problems. As the valve is important equipment, especially for some large valves, once the problem requires repair or replacement is quite troublesome. So it is especially important to do […]Feb.10.2023 Tags: Ball valve Tags: Butterfly Valve
What is a Butterfly Valve?
A butterfly valve is a valve that uses a rotating valve plate to cut off the flow in a pipeline. The function of a butterfly valve is more on cutting off the flow in the pipeline than a ball valve. Although it is also possible to use a butterfly valve to adjust the flow rate, […]Dec.30.2022 Tags: Butterfly Valve
How to choose butterfly valve and ball valve
This time we’ll explain how to choose a butterfly valve versus a ball valve. What are the factors to consider when choosing. Before that, let’s understand the ball valve and butterfly valve. Ball valves and butterfly valves are considered some of the simplest control valves in the market. They are compatible with different fluid mediums […]Dec.02.2022 Tags: Motorized valve Tags: pneumatic ball valve Tags: pneumatic butterfly valve
What is better about pneumatic control valves than motorized control valves?
Here we discuss the aspects of pneumatic control valves that are better than electric control valves. Before that, we need to explain pneumatic control valves vs. electric control valves. What is a Control Valve? Control Valve is a device that is used to regulate or manipulate fluid flow. It surrenders all control over the fluid […]Nov.11.2022 Tags: Pneumatic control valve
Troubleshooting of Solenoid valve
When installing or using the solenoid valve, you may encounter some problems. Below we at COVNA bring you common faults and solutions for low solenoid valves. Valve fails to operate Possible reason and solutions： Check electrical supply with volt meter. Voltage must agree with nameplate rating. Check coil with ohmmeter for shorted1or opened coil. Make […]Oct.28.2022 Tags: solenoid valve
Troubleshooting of motorized valve
In the process of installing or using electric valves, it is possible that you may encounter some valves that do not work properly. Below we COVNA list the common failures and solutions for you. Motor does not start Possible reason： Lacking of power supply. Solution: Connect the actuator to power supply. Electric wire broken, wiring […]Sep.23.2022 Tags: Motorized valve