Address: No.4 Road Industrial Zone of Botou, Cangzhou City, Hebei
Country: China
Phone: 86 317 4583000 - Mobi:
DIN Resilient Seated Gate Valve
Price:
What is Gate valves Gate valves are widely used for all types of applications and are suitable for both above-ground and underground installation. Not least for underground installations it is paramount to choose the right type of valve to avoid high replacement costs. Gate valves are used to shut off the flow of liquids rather than for flow regulation. When fully open, the typical gate valve has no obstruction in the flow path, resulting in very low flow resistance. The size of the open flow path generally varies in a nonlinear manner as the gate is moved. This means that the flow rate does not change evenly with stem travel. Depending on the construction, a partially open gate can vibrate from the fluid flow Gate valves are mostly used with larger pipe diameters (from 2" to the largest pipelines) since they are less complex to construct than other types of valves in large sizes. Gate Valve Parts Main gate valve parts of a gate valve are: body, seat, gate, stem, bonnet and actuator. The main operation mechanism is very simple. When the handwheel is turned, it rotates the stem, which is translated into the vertical movement of a gate via threads. Types of Gate Valves There are three ways to classify the gate valve. Types of Disk Solid taper wedge Flexible wedge Split wedge or Parallel disks Valve Types of Body Bonnet Joint Screwed Bonnet Bolted-Bonnet Welded-Bonnet Pressure-Seal Bonnet Types of Stem movement Rising Stem or OS & Y Type (Outside Stem and Screw Type) Non-rising Stem type Gate Valve Applications Gate valvesare used in almost all fluid services such as air, fuel gas, feedwater, steam, lube oil, hydrocarbon, and all most any services. Some special gate valve is used in slurry and powder product also such as knife gate valve
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