https://spudfiles.com/spud_wiki/api.php?action=feedcontributions&feedformat=atom&user=66.239.165.18 2026-04-17T03:55:22Z User contributions MediaWiki 1.44.3 https://spudfiles.com/spud_wiki/index.php?title=Quick-exhaust_valve&diff=1970 2005-12-06T20:53:16Z

<p>66.239.165.18: </p> <hr /> <div>'''Quick-exhaust valves''' ('''QEVs''' for short) are ready-made piston or diaphragm valves, designed to quickly exhaust pneumatic cylinders. They work somewhat similarly to [[sprinkler valve modification|pneumatically modified]] [[sprinkler valve]]s, they are more expensive and harder to find, but also perform better. <br /> <br /> QEVs need a separate [[pilot valve]] for triggering. They can be very sensitive, triggering at a pressure drop of a few psi, so care should be taken when filling with a [[schrader valve]] or other valves that will let out air when disconnected.<br /> <br /> Most QEVs are designed to be filled from the pilot side, and will typically work well using a 3-way valve as the fill/pilot valve. Some QEVs will also work when filled from the chamber side.<br /> <br /> Small QEVs are sometimes used as pilots for larger valves, often to allow the use of a [[blowgun]] as the trigger.</div>

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