Air valves are an essential component of pneumatic and hydraulic systems that allow air to enter and exit different parts of the system. Some synonyms for air valve include air control valve, air release valve, air intake valve, air exhaust valve, and air bleeder valve. These valves help to regulate the flow of air and maintain proper pressure in the system. An air control valve is typically used to control the speed of air flow, while an air release valve is used to release excess air. An air intake valve lets air into the system, while an air exhaust valve allows air to escape. An air bleeder valve is used to remove trapped air from the system.