These are the below mentions commands are E3D draft command which are used while producing the drawings in E3D draft module.These commands help a lot while working on E3D/PDMS draft. With the help of these E3d draft command drawings can be produce fast and accurate with minimum work have to done on AutoCAD while exporting … Read more
Types of flange:- Flanges are used to mechanically connect two pipes together, or a pipe to be mechanically connected to a valve, instrument component or nozzle of equipment. The principle of a flange is to use a mechanical force exerted by the bolts to per-load the gasket sufficiently so that when internal pressure is applied, … Read more
A Flow control valve is a valve that controls fluid flow by adjusting the size of the flow passage in response to a controller signal. This allows for direct control of flow rate and, as a result, control of process quantities such as pressure, temperature, and liquid level. Process Plants require that some of the … Read more
Needle valves Needle valves generally are used for instrument, gauge and meter line service. Very accurate throttling is possible with needle valves and therefore, they are extensively used in applications that involve high pressures and/or high temperatures. In needle valves, the end of the stem is needle pointed. The needle fits accurately into its seat … Read more
Diaphragm valves A diaphragm valve is a flow control device that relies on a flexible membrane (the diaphragm) to regulate or stop the passage of fluids. By pressing the diaphragm onto a seat, the valve blocks flow, and by lifting it, fluid can move freely. This simple yet efficient mechanism makes it suitable for a … Read more
Plug valves Plug valve, also called cocks, generally are used for the same full flow service as gate valves, where quick shut off is required. They are used for steam, water, oil, gas and chemical liquid service. Plug valves are not generally designed for the regulation of flow. Full flow is obtained when the opening … Read more
Safety valves Safety valves and pressure-relief valves are automatic pressure-relieving devices used for over pressure protection of piping and equipment. Safety valves are generally used in gas or vapour service because their opening and reseating characteristics are commensurate with the properties and potential hazards of compressible fluids. The Safety valves protect the system by releasing … Read more
Check valves are designed to prevent back flow in lines. The five principal types of check valves used are the tee-pattern lift check, the swing check, the tilting disk check, the wye-pattern lift check and the ball check. The swing check valve is the more commonly used. Check (non-return) valves are installed in pipelines to … Read more
Butterfly valve are low-pressure valves of efficient design which are used to control and regulate flow. They are characterized by fast operation and low pressure drop. They require only a quarter-turn from closed to full open position. Butterfly valve are available with metal-to-metal seats, soft seats and with fully lined body and disk. The soft … Read more
Globe valve: The essential principle of globe valve operation is the perpendicular movement of the disk away from the seat. Conventional globe valves may be used for isolation service. Although these valves exhibit slightly higher pressure drops than straight through valves (gate, plug, ball, etc.), they may be used where the pressure drop through the … Read more