The Q941F electric ball valve is suitable for applications involving frequent operation, two-position cut-off and regulation. The connection between the ball valve and the actuator is made in a direct manner. The electric actuator is equipped with a built-in servo system and does not require an additional servo amplifier. An input of 4-20mA signal and 220V AC power is sufficient to control its operation. It has the advantages of simple wiring, compact structure, small size, light weight, low resistance, and stable and reliable operation. The actuator can be configured with different types of electronic electric actuators according to user requirements.
Characteristics
1. Low fluid resistance. The ball valve has the lowest fluid resistance among all types of valves. Even the reduced-diameter ball valve has relatively low fluid resistance.
2. The thrust bearing reduces the frictional torque of the valve stem, enabling the valve stem to operate smoothly and flexibly over a long period of time.
3. The valve seat has excellent sealing performance. The sealing ring is made of materials such as polytetrafluoroethylene. The structure is easy to achieve sealing, and the sealing capacity of the ball valve increases as the pressure of the medium increases.
4. The valve stem has a reliable seal. Since the valve stem only undergoes rotational motion rather than vertical movement, the packing seal of the valve stem is less likely to be damaged. Moreover, the sealing capacity increases with the increase of the medium pressure.
5. Due to the excellent self-lubricating properties of materials such as polytetrafluoroethylene, there is minimal friction between the ball and the valve body, thereby extending the service life of the ball valve.
6. The lower-mounted valve stem and the raised step at the stem head prevent the valve stem from spilling out. In case the valve stem seal is damaged due to a fire, the raised step can still form a metal contact with the valve body, ensuring the valve stem seal.
Application scope
Electric ball valves are typically used in situations with strict sealing requirements. Besides controlling gases, liquids, and steam media, they are also suitable for controlling sewage and media containing fibrous impurities. They are widely used in industries such as petroleum, chemical engineering, metallurgy, light industry, papermaking, power stations, refrigeration, etc.
