Rapid pulse delivery diaphragm valve
Rapid shutoff extraction check valve
Regulated valve assembly for fire extinguishing systems
Reinforced diaphragm for flush valves
Reliable flush valve
Relief valve for use in a diaphragm flush valve
Relief valve for use in a diaphragm flush valve
Relief valve head for piston-style flush valve
Remote actuated metering valve
Remote control apparatus for hydraulically actuated devices
Remote control poppet valve
Remote shut-off valve
Resilient hydraulic actuator
Roll seal control valve
Roll seal control valve
Rolling diaphragm metering valve
Rolling diaphragm metering valve
Rolling-gate, quiet-throttling, flow-control valve
Rotary valve and a method of forming a sleeve for such a valve