The basic conservation gate valve, gate valve, England electromechanical

The gate valve opening and closing parts, the direction of movement of the fluid direction perpendicular to the gate, the gate valve can only be fully open and fully closed, can not be adjusted and the throttle. Ram has two sealing surfaces, sealing surfaces the most common mode of gate valve forming wedge, wedge angle with the valve parameters vary, usually 5 ° valve manufacturer, the medium temperature is not high when 2 ° 52 '. Wedge gate valve can be made into a whole, called the rigid gate; also be made to produce small quantities of deformation gate in order to improve its process all types of gate works, make up the sealing surface angle generated in the process of deviation, this gate is called the flexible gate. Valve closed, the sealing surface can only rely on media pressure to seal valve professional maintenance, which rely on media pressure to ram pressure to the sealing surface of the other side of the seat to ensure the sealing surface of the seal, which is self-sealing. Most of the valve is sealed by force, that the valve is closed to rely on external pressure to force the gate valve to ensure that the sealing of the sealing surface. Gate valve with the valve stem linear movement, called the lift rod valve also called clear shot valve. Often movements are trapezoidal threaded rod, through the guide slot valve and the valve on top of the nut, and the rotary motion into linear motion, which is the operating torque thrust into action. Open the valve, when the gate valve lift height equal to diameter of 1: 1 times, the fluid channel is completely smooth, but at run time, this position can not be monitored. Actual use, is the apex of stem as a sign that the fixed position, as its fully open position. Temperature appears to consider locking phenomenon, usually open to the vertex position, and then rewind 1 / 2-1 circle, as the location of a fully open valve. Therefore, the fully open position of the valve, according to damper position, that stroke is determined. Some valve, the stem nut is located at the gate, handwheel drive stem rotation, leaving the gate to upgrade, this valve is called the rotating rod valve or valve called the dark bar valve closing valve compared with the advantage that you mention The shut-off valve is suitable for flow adjustment valve is not used to regulate the flow of the occasion, there are other advantages: 1 due to the different structure of the process, the cut-off valve is opened and closed, due to the smaller between body and valve sealing surface friction and therefore highly wear-resistant 2. Turn the valve passage is about 1/4 the size of the same nominal diameter of the cut-off valve is smaller than a gate valve body 3. As more and only one valve sealing surface, therefore, good manufacturing processes easy maintenance but relative to the valve shut-off valve also has disadvantages: the cut-off valve flow resistance coefficient is larger than the valve, the pressure loss is also large. Another: the gate you have raised are not suitable for transporting liquid suspension of this argument is wrong, knife gate valve on the application to this case. The basic conservation gate valve, gate valve, England electromechanical provided by City Electrical Equipment Co., Ltd. of England. England City Mechanical and Electrical Equipment Co., Ltd. (www.gdyinglun.com) strong, credible, hydraulic machinery and components industry in Dongguan, Guangdong has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead England into the brilliant electromechanical and you work for a better future!