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A blowdown valve (BDV) is a type of shutdown valve designed to depressurize a pressure vessel by directing vapour to a flare, vent or blowdown stack in an emergency. BDVs fail-safe to the open position upon failure of the control system. [1] The type of valve, type of actuation and performance measurement are similar to an ESD valve.
Partial stroke testing (or PST) is a technique used in a control system to allow the user to test a percentage of the possible failure modes of a shut down valve without the need to physically close the valve. PST is used to assist in determining that the safety function will operate on demand.
Diesel rotary uninterruptible power supply devices (DRUPS) combine the functionality of a battery-powered or flywheel-powered UPS and a diesel generator. When mains electricity supply is within specification, an electrical generator with a mass functions as motor to store kinetic energy in an electro-mechanical flywheel .
ESD level 3: provides fluid containment by closing shutdown isolation valves or emergency shutdown valves (ESDVs). The safety shutdown system shall shut down the facilities to a safe state in case of an emergency situation, thus protecting personnel, the environment and the asset. The safety shutdown system shall manage all inputs and outputs ...
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WSYR-TV (channel 9) is a television station in Syracuse, New York, United States, affiliated with ABC.Owned by Nexstar Media Group, the station maintains studios on Bridge Street (off NY 290) in East Syracuse (a village of DeWitt), and its transmitter is located on Sevier Road in Pompey, New York.
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WCPO-TV (channel 9) is a television station in Cincinnati, Ohio, United States, affiliated with ABC.It is the flagship television property of locally based E. W. Scripps Company, which has owned the station since its inception.