Solvent and air mixing system
Solvent and air mixing system with air bleed backflow
Stackable hose reel cart
Stackable hose reel cart
Stackable hose reel cart with tray
Stem seal for tapered lubricated plug valves
Sterilizable valve assembly for dispensing fluid materials and a
Stop and lock plate for use with valve
Stopcock holder
Stopcock with a protective assembly
Stopcocks and methods of manufacture thereof
Stopper for opening in gas conduit wall
Storage tank cleanout apparatus
Structure and method for mounting damper
Submerged hydraulic value actuator with leak protection
Subsea valve actuator and method
Subsea valve assembly with replaceable fixed orifice insert
Swabbable needleless valve
Swing check backflow preventor having check valve with lever...
Swing check valve and method for repairing same