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1. Press Releases

   ... PQ Flow Control Series GV-GTV Series High Flow Poppet Valves, Incl. Cartridge Styles HV-HTV Toggle & Stem Valve Series, Including Cartridge Styles EW Series Electronic ...

2. Pneumatic Glossary of Terms

   ... science pertaining to gaseous pressure and flow. Poppet .  A component of a valve that seals or opens an internal passage ... a spool that slides throughout the flow path. Valve, Stem.  A self-contained valve that opens to admit gas to a chamber (such as ...