1. The so-called pressure relief valve device is a device that prevents the air compressed by the turbine from running away in the opposite direction of the turbine through the suction pipe when the refueling is stopped. If the pressure relief valve device is not installed, the turbine blades will be damaged by impact. 2. Smooth emission of deflation sound with strong impact charm, using shiny aluminum alloy body, attractiveness and durability coexist in the engine room. 3. The intake pressure relief valve is more sensitive than the original one, plus a pleasant vent sound. 4. Corrosion resistance, no fading. 5. Flange diameter: 50mm
