Check valves are installed in many piping systems. Their purpose is to allow flow in only one direction, which can be critical for plant safety and to protect equipment from damage. There are a few ...

This file type includes high resolution graphics and schematics when applicable. The images above are simple cross sections of a typical spool valve (left) and a poppet valve (right). (Courtesy of ...

Valves or poppet valves, controlthe inflow and outflow of air inside thecylinder for burning fuel and powering thevehicle. Valves are operated by the camshaftsplaced above them. Valves sit in ...