ny

Working principle of forged steel flange gate valve!

The working principle and operation of Tyco Valve Co., Ltd.’s forged steel flange gate valve are as follows:
一: Working principle
The working principle of the forged steel flange gate valve is mainly based on the movement of the gate plate to realize the opening and closing of the pipeline. The gate is the opening and closing part of the gate valve, and its movement direction is perpendicular to the direction of the fluid. When the gate moves downward, the sealing surface is in contact with the valve seat, thereby closing the valve and preventing the flow of media; when the gate moves upward, the sealing surface separates from the valve seat, opening the valve and allowing the medium to pass.
Most forged steel flange gate valves adopt a forced sealing method, that is, when the valve is closed, the valve must rely on external force (such as the valve stem or driving device) to force the valve plate to the valve seat to ensure a tight fit of the sealing surface to achieve Sealing.
二: Operation
1. Preparation before opening:
(1) Check whether the valve is in a closed state and confirm that the sealing surface is in close contact with the valve seat.
(2) Check whether the driving device (such as handwheel, electric device, etc.) is intact and in operable condition,
(3) Clear debris and obstacles around the valve to ensure sufficient operating space.
2. Start the operation:
(1) Rotate the handwheel counterclockwise (or press the opening button on the electric device) to raise the valve stem and drive the gate plate to move upward.
(2) Observe the valve indicator or mark to ensure that the gate has fully risen to the open position.
(3) Check whether the valve is fully open and confirm that the medium can pass through unimpeded.
3. Close operation:
(1) Rotate the handwheel clockwise (or press the close button on the electric device) to lower the valve stem and drive the gate plate to move downward.
(2) Observe the valve indicator or mark to ensure that the gate has been completely lowered to the closed position.
(3) Check whether the valve is completely closed, whether the sealing surface and the valve seat are in tight fit, and confirm that there is no leakage.
4. Things to note:
(1) When operating the valve, avoid using excessive force or impact to avoid damaging the valve or driving device.
(2) During the opening or closing process of the valve, attention should be paid to the operation of the valve, and any abnormalities should be dealt with in time.
(3) When using an electric device to operate a valve, ensure that the power supply is stable and the voltage meets the requirements, and the performance and safety of the electric device should be checked regularly.

The above is the working principle and operation method of the forged steel flange gate valve of Tyco Valve Co., Ltd. In actual applications, users should choose appropriate operating methods based on specific needs and site conditions, and strictly abide by relevant safety regulations and operating procedures.


Post time: Jul-02-2024