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ISO 7010 states on all symbols with a first aid cross, that it "may be replaced with another element appropriate to cultural requirements". In countries with a Muslim -majority population, an appropriate symbol is the crescent .
Example of pipe marking through colors and symbols (arrows) to indicated pipe contents (colors) and flow direction (arrows). Pipe marking on a natural gas pipe In the process industry , chemical industry , manufacturing industry , and other commercial and industrial contexts, pipe marking is used to identify the contents, properties and flow ...
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Symbol for control valve: Date: September 2007: Source: Own work: Author: Snipre: SVG development . The SVG code is . This symbol was created with Inkscape, or with ...
A back-pressure regulator, back-pressure valve, pressure sustaining valve or pressure sustaining regulator is a control valve that maintains the set pressure at its inlet side by opening to allow flow when the inlet pressure exceeds the set value.
A relief valve DN25 on cooling water pipe from heat exchanger Schematic diagram of a conventional spring-loaded pressure relief valve. A relief valve or pressure relief valve (PRV) is a type of safety valve used to control or limit the pressure in a system; excessive pressure might otherwise build up and create a process upset, instrument or equipment failure, explosion, or fire.
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Pressure independent control valves can be used with any control system. The actuator options give a choice of thermal, 3-point control, or modulating control. This will work with building management systems and individual room controls, in the same way as traditional control valves. The actuators can also be used to set the valve by limiting flow.
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