The gate valve is a gate for opening and closing. The movement direction of the gate is perpendicular to the direction of the fluid. It can only be fully opened and fully closed, and cannot be adjusted or throttled.
When the gate valve is closed, the sealing surface can only rely on the medium pressure to seal, that is, only rely on the medium pressure to press the sealing surface of the gate to the valve seat on the other side to ensure the sealing of the sealing surface, which is self-sealing.
The gate valve is a gate for opening and closing. The movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve is sealed by the contact between the valve seat and the gate plate, and the sealing surface is usually welded with metal materials to increase wear resistance.
To ensure that the BS5163 resilient seated gate valve can cut off the flow of the medium well without leakage, it is necessary to ensure that the valve is well sealed. There are many reasons for valve leakage, including unreasonable structural design, defective sealing contact surface, loosening of fastening parts, loose fit between valve body and bonnet, etc. All these problems may lead to improper valve sealing. Good, resulting in leakage problems. Therefore, valve sealing technology is an important technology related to valve performance and quality, and in-depth systematic research is required.