Gasket

Gasket is a sealing element made of paper, rubber or copper sheet, which is placed between two flat surfaces to strengthen the sealing material and is set between the static sealing surfaces to prevent fluid leakage.

A gasket is a mechanical seal between two objects and is usually used to prevent leakage between the two objects from pressure, corrosion, and natural thermal expansion and contraction of the piping. Since machined surfaces cannot be perfect, gaskets are used to fill irregularities. Gaskets are usually made of sheet materials such as paper gaskets, rubber, silicone rubber, metal, cork, felt, neoprene, nitrile rubber, fiberglass, or plastic polymers (such as PTFE). Application-specific gaskets may contain asbestos.

A washer (washer) is a thin plate (usually round) with a loophole (usually in the middle) usually used to distribute the load to the thread fastener. Other uses are as spacers, springs (Belleville gaskets, wave gaskets), wear pads, pre-display devices, locking devices. Rubber gaskets are also used in faucets (valves) to cut off the flow of liquid or gas. Rubber or silicon gaskets can also be used to reduce fan vibration. Usually the outer diameter of the gasket is about twice the inner diameter .