Knife Gate Valve Symbol

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Knife gate valve symbol.

Piping and instrument diagram standard symbols detailed documentation provides a standard set of shapes symbols for documenting p id and pfd. It is a modification of a generic valve symbol by inserting a vertical line between two triangles. Normally closed gate valve. The first is for butt welding ends second is for flanged end valve and the third one is for socket end connection.

So in addition to the valve design optimised for slurry media it is beneficial to have a knife made of acid. Utilizing a sharp beveled edge a knife gate was ideally designed to cut through the stringy pulp encountered in the pulp and paper industries. Used for high flow capacity. Gate valve with pneumatic membrane actuator.

Three symbols shown below are the gate valve symbols used in isometric drawings. Velan is a world leader in the design and production of a wide range of cast and forged steel gate globe check ball triple offset butterfly knife gate highly engineered severe service valves and steam traps offering superior performance across all major industrial applications. Withstand extreme pressure temperature and high volume flow. Knife gate valves were originally designed for use in the pulp and paper industry.

Cad bim library of blocks knife gate valve free cad bim blocks models symbols and details free cad and bim blocks library content for autocad autocad lt revit inventor fusion 360 and other 2d and 3d cad applications by autodesk. Excellent to be used as a control valve due to. Normally closed ball valve. Here is a list of symbols for various types of valves used in process industry.

Many types of valves are required in a process plant for flow regulation or on off purpose. Gate valve slide valve metering coke post indicator knife valve diaphragm valve excess flow valve self draining valve pinch valve minimum flow valve auto recirculation gauge. Knife gate valves are designed to work in some of the most harsh environments typically having a sharpened blade to cut through heavy liquids. Type of valve employed depends on nature of fluid flow control required operating pressure and temperatures as well as surround atmosphere.

They are especially useful in wastewater applications where corrosion is an important issue.