types of valves
Types of valves. The many different types of valves all have different names. The most common ones are the butterfly, cock or plug, gate, globe, needle, poppet, and spool: Ball: In a ball valve, a hollowed-out sphere (the ball) sits tightly inside a pipe, completely blocking the fluid flow.
Valves can be categorized into the following basic types: 1  Ball valve, for on/off control without pressure drop, and ideal for quick shut-off, since a 90Â° turn offers complete shut-off angle, compared to multiple turns required on most manual valves. 2  Butterfly valve, for flow regulation in large pipe diameters.
Specific types. 1  Aspin valve: a cone-shaped metal part fitted to the cylinder head of an engine. 2  Ball cock: often used as a water level controller (cistern) 3  Bibcock: provides a connection to a flexible hosepipe.  Blast valve: prevents rapid overpressuring in a fallout shelter or a bunker.