A ball valve is a flow control device which uses a hollow, perforated, and pivoting ball to control fluid flowing through it. It is open when the hole...

gate valve Stainless steel gate valve Hastelloy check valves Duplex ball valve Inconel gate valve Stainless steel wafer check valve Inconel check valve Stainless...

A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to...

mechanical valve implanted in patients today. The first artificial heart valve was the caged ball valve, a type of ball check valve, in which a ball is housed...

describe the valve used to dispense draft beer from a keg, whether gravity feed or pressurized. A gas tap is a specific form of ball valve used in residential...

one-sided chest pain and shortness of breath. In a minority of cases, a one-way valve is formed by an area of damaged tissue, and the amount of air in the space...

consists of a valve connected to a hollow, sealed float by means of a lever mounted near the top of the tank. The float is often ball-shaped, hence the...

valve is a valve that isolates or regulates the flow of a fluid. The closing mechanism is a disk that rotates. Operation is similar to that of a ball...

Globe valve, angle valve, ball valve Shut-off / On-off valve: These valves are either completely open or closed. Examples: Gate valve, ball valve, globe...

Larger check valves may be installed with ball valves at the ends, for isolation and testing. Often, test cocks (very small ball valves) are in place...