A flanged gate valve is the flange connection for the gate valve, this connection is the most common. Flanged gate valves are stable and reliable when used in pipelines, so flanged gate valves are often used in high-pressure pipelines.
The opening and closing parts of the flanged gate valve are the gate plates. The movement direction of the gate plate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and closed, not adjusted and throttled. The two sealing faces of the most common type of gate valve form a wedge. The wedge angle varies with the valve parameters. Wedge gate valves can be made into a whole body, called a rigid gate; It can also be made into a gate that can produce slight deformation to improve its technology and compensate for the deviation of sealing face Angle in the process of processing. This gate is called an elastic gate.
The types of gate valves can be divided into wedge gate valves and parallel gate valves and wedge gate valves according to the sealing surface configuration. This type of valve in the pipeline should generally be installed horizontally.
When the gate valve is closed, the sealing surface can only rely on the medium pressure to seal, that is, rely on the medium pressure to press the sealing surface of the gate to the other side of the seat to ensure the sealing surface of the sealing surface, this is self-sealing. Most gate valves are force-sealed, that is, when the valve is closed, the gate is forced against the seat by external forces to ensure the sealing face.
The disc of the gate valve moves in a straight line with the valve stem, which is called the lifting rod gate valve (also called the open rod gate valve). Usually, trapezoidal threads on the lifting rod convert the rotary motion into linear motion, that is, the operating torque into operating thrust, by means of the nut at the top of the valve and the guide slot in the valve body.
Z type white electric control multi-rotary actuator:
Z series actuators are the driving equipment for valve opening, closing, and adjusting control. This series of actuators have the features of full function, reliable performance, advanced control system, small volume, lightweight, easy to use, and maintenance.
Z series actuators are suitable for opening and closing parts to do the linear motion of the valve, such as gate valve, globe valve, diaphragm valve, plunger valve, cut-off valve, watergate, etc., can be used for rising stem valve can also be used for dark stem valve, valve remote control, centralized control and automatic control, widely used in electric power, metallurgy, petroleum, chemical, pharmaceutical, sewage treatment, agricultural irrigation, and other industries.