What effect does the flat gate of DN1200 gate valve have on the gasket?
The valve has the function of sealing gasket, gasket material selection according to the following rules: 1) with water or water is greater than 80 degrees under the conditions of using poly ethylene propylene rubber; 2) in oil and corrosion and high temperature conditions, with metal gasket; 3) in need of sound insulation and static conditions.
Gaskets are usually made of sheet materials such as cushion paper, rubber, silicone rubber, metal, cork, felt, neoprene, nitrile rubber, fiberglass or plastic polymers (such as Teflon). Gaskets for specific applications may contain asbestos.
With asbestos gasket.Gaskets (gasket) are mechanical seals between two bodies, usually used to prevent pressure, corrosion, and natural heat expansion, cold contraction and leakage between two bodies. Because machined surfaces are not perfect, gaskets can be used to fill the irregularity.
