Normally closed check valve
Normally closed duckbill valve and method of manufacture
Normally closed duckbill valve assembly
Normally closed in-channel micro check valve
Normally closed pneumatic air valve
Normally closed pressure compensated flow control valve
Normally open hydraulic control valve
Normally open pneumatic air valve
Normally open purge valve
Normally open reverse flow flapper valve
Normally-closed electro-thermally operated flood valve
Normally-closed electromagnetic valve and manufacturing...
Normally-open backwater valve
Novel valve employing hydrophobic and hydrophilic membranes
Nozzle and flapper with squeeze film damping
Nozzle and impingement plate valve
Nozzle closing valve, as well as pressure atomizer nozzle having
Nozzle damper assembly
Nozzle flapper mechanism
Nozzle flapper mechanism