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The blue valve body is visible in-line with the pipe. The valve actuator opens or closes the butterfly disc of the valve based on electrical signals sent to the actuator. Another valve actuator is visible in the background, with windows to indicate the valve position. A valve actuator is the mechanism for opening and closing a valve. Manually ...
The experience of GVA as a marine engineering company stretches back more than 25 years. There is an even longer history of building ships of various types, semi-submersibles, jack-ups and offshore modules at the shipyard Götaverken Arendal AB where GVA is based.
Goldline, LLC was a retail seller of gold and silver coins, and other precious metals for investors and collectors. [1] Goldline traced its formation to a Deak & Co. subsidiary created in 1960, a firm that in the late 1970s was the largest storefront gold retailer and later went into bankruptcy in the 1980s. The company was later bought and ...
An actuator can be just a mechanism that is directly driven by the motions or forces of other parts of the system. An example is the camshafts that drive the intake and exhaust valves in internal combustion engines, driven by the engine itself.
The GVA approach is based on established Systems Engineering principles to define a generic architecture that requires open implementation standards to support cost effective integration of sub-systems on land platforms (electronically, electrically and physically). The Director of Land Equipment (DLE) has mandated the application of the GVA ...
Power consumption and supply requirements of the solenoid vary with application, being primarily determined by fluid pressure and orifice diameter. For example, a popular 3 ⁄ 4-inch 150 psi sprinkler valve, intended for 24 VAC (50–60 Hz) residential systems, has a momentary inrush of 7.2 VA, and a holding power requirement of 4.6 VA. [5]