Shut-off valve for a sprinkler head
Shut-off valve usable in an improved packaging system for a ster
Shutoff valve for fuel truck or tanker drain off downspouts
Single operation normally closed coupling valve
Sleeve valve
Slow close hydrant check valve
Snap action pressure relief valve with over pressure indicator
Snap-off plug valve
Socket assembly with fusible element
Soft shock pressure plug
Spring steel high overpressure vent structure
Spring-motor dual-functioning mechanism
Spring-powered actuator
Squib valve
Stacked rupture disk assembly
Stem seal for a fire safe ball valve
Subsurface safety valve
Sump stabilizer bar
Superconductive magnet burst disk assembly
Switchable flap valve