Sealing performance of floating ball valve

The working principle of a ball valve is to rotate the valve to make it open or close. PTFE lined valve The switch is lightweight, small in size, can be made into a large diameter, reliable in sealing, simple in structure, easy to maintain, and the sealing surface and spherical surface are often in a closed state, which is not easily eroded by the medium. It has been widely used in various industries. Ball valves and plug valves belong to the same type of valve, except that their closing element is a sphere that rotates around the centerline of the valve body to achieve opening and closing. check valve It is mainly used in pipelines to cut off, distribute, and change the flow direction of media. Ball valve is a new type of valve widely used in recent years.

Explanation: When SW is connected to OPEN, the actuator moves forward, the valve opens, and when it is in place, the internal power automatically shuts off and remains in the valve open state; When SW is connected to CLOSE, the actuator acts negatively, the valve closes, and once in place, the internal power automatically shuts off and remains in the valve closed state Fluorine lined DC globe valve The actuator action is rotary (forward and reverse). Explanation: 1. When the SW is closed, the actuator moves forward, the valve opens, and the internal power is automatically cut off after it is in place, maintaining the valve open state; When the SW is disconnected, the actuator acts negatively, the valve closes, and the internal power is automatically cut off after it is in place, maintaining the valve closed state Actuator action clamp type Fluorine-lined Butterfly Valve For rotary type (forward and reverse). 2. POWER is an external working power supply for the actuator, with a voltage range of DC9-24V. It uses Farad capacitors as a backup power supply, which is safe and reliable, with fast charging time, and can work in situations with high switching frequencies.

The floating ball valve has a simple structure and good sealing performance, but the ball bears all the load of the working medium and is transmitted to the outlet sealing ring, Fluorine lined valve factory Therefore, it is necessary to consider whether the sealing ring material can withstand the working load of the spherical medium. When subjected to high pressure impact, the sphere may deviate. This structure is generally used for medium and low pressure ball valves.

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