A safety valve is a valve that acts as a fail-safe. An example of safety valve is a pressure relief valve (PRV), which automatically releases a substance...

A relief valve or pressure relief valve (PRV) is a type of safety valve used to control or limit the pressure in a system; excessive pressure might otherwise...

The safety valve theory was an American theory of economic development that held that the availability of free land and continued expansion westwards into...

A downhole safety valve refers to a component on an oil and gas well, which acts as a failsafe to prevent the uncontrolled release of reservoir fluids...

limits. Safety valve may also refer to: Safety valve (law), a provision in the United States Federal Sentencing Guidelines Safety valve theory, relating...

shoals (Safety Valve) along the northern and middle part of the lagoon. It makes a brief appearance at Soldier Key, in the middle of the Safety Valve, and...

Safety-valve organization or safety-valve institution is a term used in sociology to describe social organizations which serve to allow discontented individuals...

or a piston which in turn activates the valve, examples of this type of valve found commonly are safety valves fitted to hot water systems or boilers....

called pilot-operated safety valve (POSV), pilot-operated pressure relief valve (POPRV), or pilot-operated safety relief valve (POSRV), depending on the...

Limitations and exceptions to copyright are provisions, in local copyright law or the Berne Convention, which allow for copyrighted works to be used without...