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A back-pressure regulator, back-pressure valve, pressure sustaining valve or pressure sustaining regulator is a control valve that maintains the set pressure at its inlet side by opening to allow flow when the inlet pressure exceeds the set value.
These types of valves are also known as automatic control valves. The hydraulic actuators respond to changes of pressure or flow and will open/close the valve. Automatic control valves do not require an external power source, meaning that the fluid pressure is enough to open and close them.
Seth Glanville Atwood (June 2, 1917 – February 21, 2010) was an American industrialist, community leader, and horological collector. [1] [2] He was the chairman and president of Atwood Vacuum Machine Company, one of the world's largest manufacturers of automobile body hardware, and a long-time leader of the Atwood family's business which involved in manufacturing, banking and hotel ...
A diaphragm within the valve keeps the outlet pressure constant, and this delivers a constant flow to the terminal. The added advantage of pressure independent control valves is that, when fitted with an actuator, they replace the manual balancing valve and motorized control valve with a single valve, thus reducing installation cost. [citation ...
One week after an Altadena couple — married for more than 30 years and beloved in their neighborhood — was found slain in their home, friends and family held a candlelight vigil in their honor ...
A control valve is a valve used to control fluid flow by varying the size of the flow passage as directed by a signal from a controller. [1] This enables the direct control of flow rate and the consequential control of process quantities such as pressure, temperature, and liquid level.
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Globe valve. A globe valve, different from ball valve, is a type of valve used for regulating flow in a pipeline, consisting of a movable plug or disc element and a stationary ring seat in a generally spherical body. [1] Globe valves are named for their spherical body shape with the two halves of the body being separated by an internal baffle.