Axial -flow type level pressure relief pressure valve

The utility model discloses an axial -flow type level pressure relief pressure valve, including the valve body, be provided with air inlet, gas outlet and pilot -gas entry on the valve body, air inlet department is provided with the export end cover, and gas outlet department is provided with the export valve gap, and export end cover and outlet valve are covered and all are provided with ball joint, are provided with the throttle piston in the valve body, are provided with the filler neck in the pilot -gas entry, are provided with the spring on the throttle piston, and the one end of throttle piston is close to air inlet department and is provided with seat kits, the last filtering component that is provided with of seat kits. This kind of axial -flow type level pressure relief pressure valve adopts axial -flow type structural design, and is small. On the basis that has balance product quality and export precision, adopt the throttle piston, make product simple structure, little, the simple to operate, longe