Flush relief valve having floatable sleeve member
Flush relief valve having improved vacuum breaker
Flush valve
Flush valve with rotatable grate
Flushing attachment for hydrant
Flux density control system
Foam inductor system and method of using same
Folding leaf valve and method of making
Fragmented polymers as friction reducers in pipeline transportat
Framed wall with a prefabricated underfloor drain line and metho
Frangible connectors
Frangible connectors
Freeing of seized valves
Freeze safe valve
Freeze valve
Freeze valve and treatment enclosure controlled by at least one
Freeze-proof hydrant
Freeze-resistant plumbing system in combination with a...
Freeze-thaw method for temporarily plugging process flowline
Freezeless ground hydrant and method for operating same