by a fall in pneumatic pressure to the relay valve on the control trim. a fall in pneumatic pressure can be from a dry pilot line, a remote pneumatic release, or from an electric signal to the -way solenoid. when open an integrated pressure control pilot valve regulates the main valve to maintain a...
washers are commonly used in carbon dioxide service. ptfe is compatible with most gases and is the most common washer material used with specialty gases. however, ptfe has some properties that can make it a poor choice for a washer material. it has a tendency to cold-flow. cold flow occurs when pressure...
* * not including " valves typical applications nwater sensitive material storage nfreezing conditions ncomputer and electronics rooms n libraries / museums & archives additional features nvalve position limit switches n local valve position indicator beacon nsea water compatibility nair maintenance...
by a pressure drop in a fusible plug wet pilot line. once open the y- m latches open until locally reset. the optional valve position indicator can include a limit switch suitable for fire & gas monitoring systems. the y- m is ideal for systems with open nozzles for water or foam discharge. benefits...
hds valves for heavy gases and high pressures double damped plate valve plate design intelligent port design metal or non-metallic valve plates the hoerbiger hds valve is suitable for high-pressure applications in the chemical, petrochemical and natural gas industries. primary fields of use include...
apache smithvent - - pressure regulation y v,p y new winner of the covent challenge, excellent simple design. english (some chinese, portugese, german) usa teensy respirador-dq d-nica - - ambubag protofy team oxygen - - ambubag new easy mechanical build two arduino unos cc-by + gpl the open ventilator...