[Class : 7] Valves; Safety Valves [Parts Of Machines]; Back Pressure Valves As Parts Of Machines; Pressure Reducers [Parts Of Machines]; Valves Operated By Changes In Pressure; Pressure Valves [Parts Of Machines]; Ball Valves Being Parts Of Machines; Actuators For Mechanisms; Actuators For Valves; Actuators Incorporating A Gear Mechanism For Pipeline Valves; Angle Valves Being Parts Of Machines; Control Valves For Regulating The Flow Of Gases And Liquids [Parts Of Machines]; Hydraulic Valve Actuators; Pneumatic Controls For Machines; Pneumatic Valve Actuators; Pressure Reducers Being Parts Of Machines; Pressure Regulators [Parts Of Machines]; Regulators [Parts Of Machines]; Pump Control Valves; Valves [Parts Of Pumps]; Clack Valves For Machines; Valves As Machine Components; Valves [Parts Of Machines]; Dosing Valves [Parts Of Machines]; Pressure Valves Being Parts Of Machines; Butterfly Valves Being Parts Of Machines; Proportional Flow Valves As Parts Of Machines; Automatic Inlet Control Valves For Reciprocating Air Compressors; Unloading Check Valves For The Outlets Of Air Compressors; Positive Crankcase Ventilation [Pcv] Valves For Motors And Engines; Exhaust Gas Recirculation [Egr] Valves For Motors And Engines; Proportional Flow Valves Being Parts Of Machines; Pressure Switches As Parts Of Machines