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Subsea valves are used in sub-marine environments, which can range in depth from shallow water (usually down to a depth of 75 meters) to deep water (down to 3500 meters). [1] Various industries use subsea valves, with the oil and gas sector accounting for the majority, where there is a need to move material from, to, or below the seabed.
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 flow through it in only one direction. [1] Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various ...
SSIV – subsea isolation valve; SSTV – subsea test valve; SSM – subsea manifolds; SSMAR – synthetic seismic marine log; SSPLR – subsea pig launcher/receiver; SSSL – Supplementary Seismic Survey Licence (United Kingdom), a type of onshore licence [citation needed] SSSV – sub-surface safety valve; SSTT – subsea test tree; SSU ...
Sub-systems of Subsea trees, might also be further customized to fit individual well needs. Subsea trees may range in size and weight from a few tons to approximately 70 tons for high pressure, deepwater (deeper than 3,000 ft or 910 m) guidelineless applications. Subsea trees contain many additional valves and accessories compared to surface trees.
Piping and instrumentation diagram of pump with storage tank. Symbols according to EN ISO 10628 and EN 62424. A more complex example of a P&ID. A piping and instrumentation diagram (P&ID) is defined as follows: A diagram which shows the interconnection of process equipment and the instrumentation used to control the process.
A Tesla valve, called a valvular conduit by its inventor, is a fixed-geometry passive check valve. It allows a fluid to flow preferentially in one direction, without moving parts. The device is named after Nikola Tesla , who was awarded U.S. patent 1,329,559 in 1920 for its invention.
A typical subsea deepwater blowout preventer system includes components such as electrical and hydraulic lines, control pods, hydraulic accumulators, test valve, kill and choke lines and valves, riser joint, hydraulic connectors, and a support frame. Two categories of blowout preventer are most prevalent: ram and annular. BOP stacks frequently ...
An isolation valve is a valve in a fluid handling system that stops the flow of process media to a given location, usually for maintenance or safety purposes. [1] They can also be used to provide flow logic (selecting one flow path versus another), and to connect external equipment to a system. [ 2 ]