Product Description
A plastic air valve is a lightweight, corrosion-resistant component that automatically regulates air flow in a fluid-carrying pipeline or system. Its main function is to release trapped air (which accumulates at high points and can restrict flow, cause pressure issues, or damage components) and/or to admit air (to prevent vacuum conditions and pipeline collapse during draining or system pressure drops). It typically uses an internal float mechanism to open or seal an orifice based on the presence of air/gas or fluid.