Rack and pinion steering system
Random access valve
Rapid acting valve assembly
Rapid inflation and venting air valve of airbed
Reciprocating valve for a double piston concrete pump
Reduced gain thrust control valve
Refrigerant flow reversing valve
Refrigerant reversing valve
Refrigeration heat pump changeover valve assembly
Regulating valve
Regulation disc valve with discharging device
Regulator device for regulating fluid flow in a valve body
Relay lock-out
Relay valve
Remote controlled, individually pressure compensated valve
Remote hydraulic control systems
Remote valve operators
Remotely adjustable control pressure by-pass and shut-off valve
Reserve fuel valve and method for making
Reserve metering valve