Posted by The Three-way ball valve is a relatively new type of ball valve, which has some unique advantages of its own structure, such as frictionless switching, sealing is not easy to wear, and opening and closing torque are small. This can reduce the specification of the actuator. Equipped with a multi-turn electric actuator, it can realize the regulation and tight cut-off of the medium. It is widely used in petroleum, chemical industry, urban water supply, and drainage, and other conditions requiring strict cut-off.
What is the important structure of the three-way ball valve?
The T-way ball valve has T type and L type. T type can make three orthogonal pipeline interconnections and cut off the third channel, play the role of diversion, and combined flow. L three-way ball valve type can only connect two mutually orthogonal pipelines, and can not keep the third pipeline interconnection at the same time.
Three-way ball valve working principle:
Pneumatic three-way ball valve open: 2 ports into the air, 4 ports exhaust, push the two pistons separate to move to both sides while compressing the spring, the output shaft counterclockwise rotation
Pneumatic three-way ball valve closed: loss of gas or electricity, the spring pushes the two pistons together to move to the center, the output shaft clockwise rotation
The principle is to rely on the rotation of 90 ° of the ball in the fluid action automatically open and close. The three-way ball valve not only has a simple structure and good sealing performance but also switches quickly and 90° reciprocating without friction. Completely solve the traditional angle valve due to the sealing surface friction between each other and affect the sealing problem.
It can also be used to convey slurry, pulp, and other media, with good environmental performance. Ball valves can be divided into straight-through, three-way, and right-angle types according to their channel position. The latter two types of ball valves are used to distribute media and change the direction of media flow. The first one is used to control the flow. The working principle of the ball valve is to open and close by rotation. The pipeline is mainly used to cut off the media in the pipeline, that is, fully open or fully closed use.
- When the handwheel clockwise rotation means in the fully open position, that the valve has been opened.
- When the handwheel counterclockwise rotation means in the half-open state, that the valve has been fully opened.
- When the handwheel continues to turn and reaches the limit position, it means closed.
- If the handle is pulled to the vertical position, the three-way plug shut-off valve with a throttle orifice is also shut off by the action of the throttle orifice in the vertical direction.
- If the downward arrow points to the extension of the horizontal center line can also be called a check valve.
- The three-way with a guide rod is called the piloted three-way gate.
- With a bypass tube, cut-off check butterfly gate opening and closing parts is a disc-shaped slide column set on a guide plane rack and pinion mechanism.
- A single seat adjustment ball type adjustment device is driven by the worm gear box active shaft for rotary motion so that the eccentric sleeve on the main shaft drives the driven shaft for lifting movement to change the position of the nut to achieve the purpose of adjustment.
