Introduction:
The wedge valve is a type of gate valve. It is named after a certain angle of its cover and vertical center line, that is, the two sealing surfaces into wedge -shaped. Under normal circumstances, the two sealing surfaces are wedge -shaped gate valves, and the angles of the cover and vertical center line are 2 ° 52 ', 3 ° 30 ', 5 °, 8 °, 10 °, etc. The wedge valve is divided into the glee rod gate valve and the dark rod gate valve, the wedge -shaped single gate valve and the wedge -shaped double gate valve. The driving methods include: electric, pneumatic, manual, gas liquid dynamic, etc. The connection methods are flange, welded, and clamps.
Structural features:
Different from the parallel gate valve, the wedge valve and the wedge -shaped single brake valve. The most commonly used wedge -type gate valve to form a wedge -shaped surface. The wedge -shaped angle varies with valve parameters, usually 50. The gate of the wedge valve can be made into a whole, called a rigid gate; it can also be made to produce a trace deformation gate to improve its craftsmanship and make up for the deviation of the seal angle in the processing process. This kind of gate is The board is called elastic gate.
The design of the wedge-shaped gate valve in the market is generally manufactured according to the GB/T12234-2019 standard. It is reliable and its performance is excellent. Generally, the wedge elastic gate structure is used. The structural length is short, the manufacturing process is good, and the scope of application is wide. Welcome from the majority of users.
working principle:
The opening and closing parts of the wedge -shaped gate valve are the gate, and the movement direction of the gate is vertical as the fluid direction. The wedge -shaped gate valve can only be used as full and full levels, which is not suitable for regulating and eliminating. The wedge -shaped gate valve generally completes the opening and closing of the valve through the rotation wheel. There are two types of glenecopic wedge valve and dark rod wedge -shaped gate valve. The glean wedge -shaped gate valve is moved up and down from the valve stem, and the nine nuts are fixed. The hidden rod gate valve is fixed with valve stems, and the valve stems moved up and down up and down.
Scope of application:
The wedge -shaped gate valve has a certain angle because of the sealing surface of the valve and the vertical center line, so the seal is better, so it can withstand great pressure. Under normal circumstances, the valve stems of the wedge -shaped gate valve are tuned and surface nitride, and they have good corrosion resistance and scratch resistance; , Corrosion -resistant, good resistance to rubbing injuries, and long service life; complete varieties of valve body materials, fillers and pads are reasonably selected according to actual work conditions or user requirements, which can be suitable for various pressures, temperature and medium working conditions; generally can be available Undertaking pressure can reach PN16, which is widely used in industrial fields such as power, petroleum, chemical industry, metallurgy, mining, sewage treatment, especially in power stations to remove ashmade coal washing equipment equipment!