Precautions For Internal Thread Gate Valve
The corrugated stop valve operated by handwheel or handle can be installed at any position of the pipeline. The handwheel, handle and dynamic mechanism are not allowed to be used for lifting. The flow direction of the medium should be consistent with the direction of the arrow shown on the valve body. Gate Valve, also known as the stop valve, is the most widely used valve. The reason why it is so popular is that the friction between the sealing surfaces is small during opening and closing, it is relatively durable, the opening height is not large, it is easy to manufacture and maintain, and it is suitable not only for medium and low pressure, but also for high pressure. Its closing principle is to rely on the valve stem pressure to make the valve disc sealing surface and the valve seat sealing surface fit tightly to prevent the flow of medium. The internal thread gate valve only allows the medium to flow in one direction and has directionality when installed. Its structural length is longer than the gate valve, and the fluid resistance is large. When it is in long-term operation, the sealing reliability is not strong.
