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The refinery was operated in the name of the Apco Refining Company until February 26, 1923, when all of the company's stock was sold to the latest business entity of the partners, the Anderson-Prichard Oil Corporation, which had also been separately organized and incorporated in Oklahoma in June 1922, with an authorized capital of 1,000 shares ...
“APCO” was a common acronym used within the Anderson-Prichard Oil Corporation since its founding in 1922. As early as 1926, Anderson-Prichard began attempts at trademarking the acronym, first through overtures to the American Pacific Company, and later through communications with the American Oil Company, whose trading name AMOCO was thought to be too similar.
Choke valve, Butterfly valve used to limit air intake in internal combustion engine. (Not to be confused with choke valves used in industrial flow control, above.) Clapper valve: a type of check valve used in the Siamese fire appliance to allow only one hose to be connected instead of two (the clapper valve blocks the other side from leaking out)
A camless or free-valve piston engine is an engine that has poppet valves operated by means of electromagnetic, hydraulic, or pneumatic [1] actuators instead of conventional cams. Actuators can be used to both open and close valves, or to open valves closed by springs or other means.
APCO may refer to: Apco Aviation, an Israeli aircraft manufacturer; APCO Worldwide, a public relations firm; Air Pollution Control Officer; Association of Public-Safety Communications Officials-International, an organization providing standards for telecommunications; APCO radiotelephony spelling alphabet, a phonetic spelling alphabet
Apco Presta, an Israeli paraglider design; Presta valve, a bicycle tire valve style This page was last edited on 4 ...
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.
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 ...
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