1. The intake valve is in a normally closed state when the moving screw air compressor is started. After the light load start is completed, the intake valve automatically switches to a normally open state to control pressure input and close the intake valve, combining the advantages of a normally closed valve and a normally open valve;
2. Optional RS high-pressure solenoid valve for electrically controlling the intake valve for ON/OFF action;
3. Optional RT series proportional valve for controlling the intake valve for automatic flow regulation;
4. The optional QGH-40L cylinder can control the throttle of the internal combustion engine;
5. The entire intake valve has a check function and will not spray oil during emergency shutdown conditions;
6. The intake valve has the function of unloading and supplementing air, which can effectively eliminate the cavitation noise generated by the main engine;
7. The intake valve integrates a relief valve and a makeup valve, making installation convenient and fast.