Ambient temperature shape memory alloy actuator
Apparatus for and method of freeze protecting plumbing
Apparatus for draining a cooling system
Apparatus for preventing freezing of interior water pipes
Apparatus for preventing water pipe freeze-up
Automatic mechanism for cut-off and drainage of under...
Automatic water line freeze control
Detachable water pipe freeze preventing device
Drain valve assembly
Dump valve assembly
Flow control apparatus
Flow control apparatus and method
Flow control apparatus and method
Fluid loss, damage prevention and control system
Freeze buster
Freeze control and drain valve
Freeze control valve
Freeze drain valve
Freeze guard valve
Freeze preventing valve