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Valves and their types and identifications (e.g. isolation, shutoff, relief and safety valves, valve interlocks) Control inputs and outputs (sensors and final elements, interlocks) Miscellaneous - vents, drains, flanges, special fittings, sampling lines, reducers and swages; Interfaces for class changes; Computer control system
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 ]
When equipped with self-sealing valves, quick connect fittings will, upon disconnection, automatically contain any fluid in the line. However, this depends on the type of coupling, such as single shut-off, double shut-off, or straight-through designs, which determine whether fluid retention occurs.
Faston female terminals in three sizes, with insulation Faston male terminals in three sizes, with insulation Various single wire connectors: FASTON blade terminals (bottom), ring terminals (2 left), spade terminals (5 top), bullet terminals, male and female (2 right with blue wires)
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A tappet or valve lifter is a valve train component which converts rotational motion into linear motion in activating a valve. It is most commonly found in internal combustion engines , where it converts the rotational motion of the camshaft into linear motion of intake and exhaust valves, either directly or indirectly.
An emergency disconnect system/sequence (EDS) disconnects the rig from the well in case of an emergency. The EDS is also intended to automatically trigger the deadman switch, which closes the BOP, kill and choke valves. The EDS may be a subsystem of the BOP stack's control pods or separate. [citation needed]
the tenon tongue. The tenon, formed on the end of a member generally referred to as a rail, fits into a square or rectangular hole cut into the other, corresponding member. The tenon is cut to fit the mortise hole exactly. It usually has shoulders that seat when the joint fully enters the mortise hole.