A gas input valve is a small, precision-machined component used in gas-powered mechanisms to control the flow of compressed gas from a reservoir (such as a gas magazine or cylinder) into the working system:
 
Basic Function
Regulates Gas Flow: It allows a controlled amount of pressurized gas (e.g., CO₂, green gas, propane mix) to enter the system each time the actuator is triggered.
Sealing and Timing: It contains seals (often O-rings) that prevent leaks and ensure gas is only released at the correct moment.
Interfaces With Accessories: Typically threaded or fitted to connect with other parts like the magazine valve assembly, nozzle, or internal gas pathways.
 
Features:
Valve Body: The main housing that channels the gas.
Sealing O-rings: Prevent escape of gas except when intended.
Spring Mechanism: Returns the valve to closed position after activation.
Actuator / Pin Interface: Engages with the gun’s mechanism or magazine to open the valve.
Threading / Fitting: Standardized connection to gas lines or magazines.