The groove signal gate valve adopts an upper mounted structure, which reduces the connection bolts of the valve body under high pressure and large diameter conditions, enhances the valve, and can overcome the influence of system weight on the normal operation of the valve.

The opening and closing component of the groove signal gate valve is the gate plate, and the movement direction of the gate plate is perpendicular to the fluid direction. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. It can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metals, and radioactive media. The gate valve has two sealing surfaces, and the two sealing surfaces of the mode gate valve form a wedge shape. The wedge angle varies with the valve parameters, usually 50 degrees, and 2 ° 52 'when the medium temperature is not high. The gate of a wedge gate valve can be made as a whole, called a rigid gate; It can also be made into a gate that can produce slight deformation, with its processability, to compensate for the deviation of the sealing surface angle during the processing. This type of gate is called an elastic gate. Groove signal gate valves are generally installed horizontally.

characteristic

Overall rubber coating: The gate adopts rubber for the overall internal and external rubber coating. The rubber vulcanization technology in Europe enables the vulcanized gate to have geometric dimensions, and the rubber is firmly attached to the ductile iron gate, which is not easy to fall off and has good elastic memory. water

Precision cast valve body: The valve body is cast with geometric dimensions that allow for sealing without any precision machining inside the valve body.

Technical requirements: Requirements for the valve body part

1) The handwheel used for operating gate valves should be of the "wheel width and rim" type with no more than 6 wheel widths, and should be closed in a clockwise direction. There should be clear arrows indicating the direction of closure and the word "close" on the wheel rim, or bidirectional arrows indicating the direction of opening and closing and the words "open" and "close"

2) The handwheel should be secured to the valve stem with a locking nut

3) The outer diameter of the handwheel should not be less than the dimensions shown in Table 1.

4) Mechanical strength tests shall be conducted on other components such as valve stems, gate valves, and valve chokes to withstand the torque applied to the handwheel as shown in Table 2. After the test, there shall be no damage.