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A pyrotechnic valve, also explosive actuated valve, short pyro valve or pyrovalve is a one time use propulsion component often used to control propellant or pressurant systems aboard spacecraft or space probes. The device is activated by an electric signal, upon which one or several small explosive charges are ignited.
Membership on the B16 Standards Committee [1] and its Subordinate groups include a variety of representations from the field in various interest classifications. These interest classifications are; Manufacturer, Distributor, Material Manufacturer, Consumer/User, Designer/Constructor, Regulatory, Insurance/Inspection and General Interest.
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
Cobham Technical Services (the trading name of Cobham CTS Ltd) is a UK-based technology organisation founded in 1920. It sells products for terrestrial and satellite communications, navigation and sensor applications; technical services and specialised systems for high-voltage and lightning testing; electromagnetic and multiphysics simulation software products.
Pyrotechnic gerbs used in the entertainment industry. Pyrotechnics is the science and craft of creating such things as fireworks, safety matches, oxygen candles, explosive bolts and other fasteners, parts of automotive airbags, as well as gas-pressure blasting in mining, quarrying, and demolition.
In September 1997, Cobham acquired ML Aviation for £37 million, which had taken over Nash & Thompson, a major competitor, the previous year. [7]In early 2008, Cobham purchased S-TEC Corporation, maker of general aviation autopilots, for $38 million; [8] during February 2008, the company also bought the sensor and antenna systems division of BAE Systems for $240 million. [9]
In May 2014, Aeroflex was acquired by the UK aerospace company Cobham for $1.46 billion. [16] In March 2018, Viavi Solutions purchased Cobham AvComm and Wireless Test and Measurement, which were previously part of Aeroflex, for $455 million. These business units will continue using the name Aeroflex until March 2021.
This means that they are installed as a component of the completion string and run in during completion. Retrieving the valve, should it malfunction, requires a workover. The full name for this most common type of downhole safety valve is a Tubing Retrievable Surface Controlled Sub-Surface Valve, shortened in completion diagrams to TRSCSSV.