As an important valve element, electric butterfly valves have been widely used in various machinery, automobiles, railway locomotives, water transport vehicles, aircraft and other aircraft. It can be said that electric butterfly valves are required wherever valves and isolation are required.
(1) The shape can be freely determined, and the hardness can be controlled by adjusting the composition of the formula, which can meet the requirements for stiffness and strength in all directions;
(2) The internal friction is large and the valve effect is good, which is beneficial to cross the resonance area and attenuate high-frequency vibration and noise;
(3) The elastic modulus is much smaller than that of metal, which can produce large elastic deformation;
(4) No sliding part, easy to maintain;
(5) Small quality, easy installation and disassembly.
(6) The impact stiffness is higher than the static stiffness and dynamic stiffness, which is conducive to impact deformation.