Different Types Of Valves
What Is a Valve?
The most crucial mechanical parts that go into making a valve are the body (the exterior shell), the trim (a collection of interchangeable wetted parts), the stem, the bonnet, and an actioning mechanism (manual lever, gear or actuator).
Commercial valves with a bore size more than 2 inches have cast body materials; smaller valves (usually 2 inches) or those with high pressure and temperature requirements have forged steel bodies.