a technical knowledge base for all the process piping professionals around the world...
Check Valves, also known as Non Return Valves (NRV) or One Way Valves, are automatic valves that normally allows fluid (liquid or gas) to flow through it in only one direction. Check valve open with forward flow and close against reverse flow. Check valves differ considerably from other members of the valve family and...
Needle Valves, sometimes referred also as Plunger Valves, are regulating valves and enable engineers to finely control and regulate fluid flow and pressure. Needle valves are similar to the globe valve in design with the biggest difference is the sharp needle shaped disk. Needle valve have a small port and a threaded needle-shaped...
Globe valves are linear motion closing-down valves in which the closure member is moved squarely on and off the seat. Usually the closure member is referred as a disc, irrespective of its shape. The seat opening varies in direct proportion to the travel of the disc. This proportional relationship between...
Gate valves are used to shut off the flow of fluid by inserting a rectangular gate or wedge into the path of a flowing fluid. Gate valves require very little space along the pipe axis and hardly restrict the flow of fluid when the gate is fully opened enabling gate...
A plug valve is a quarter-turn manual valve that uses a cylindrical or tapered plug to permit or prevent straight through flow through the body. The plug has a straight through full port opening. Plug valve can be used in on-off, basic moderate throttling, and diverting services. The face-to-face standard...
