H41f plastic ball core check valve has excellent strength and toughness, excellent chemical corrosion resistance, self extinguishing flame retardancy, low heat conductivity of 1/200 of steel, heavy ion content in the medium up to ultra pure water content, health indicators in line with national health standards, light body weight, compact and beautiful appearance, light body weight, easy installation, strong corrosion resistance, wide range of applications, hygienic and non-toxic materials, wear resistance, easy disassembly, It is easy to maintain and suitable for fluids: water, air, oil and corrosive chemical liquids.