Neoprene EPDM Bonded Sealing Washers

The structural features of the Neoprene EPDM Bonded Sealing Washers are as follows：

（1）Integral vulcanization bonding

The metal washer of the Neoprene EPDM Bonded Sealing Washers is permanently bonded to the neoprene rubber through a high-temperature vulcanization process, and there is no risk of separation or detachment.

（2）Metal outer ring

The exterior is usually made by stamping low-carbon steel, galvanized steel or stainless steel, and is located on the outer edge or back of the washer.

（3）Chloroprene rubber sealing ring

It is located on the inner side or bottom of the metal ring, forming a raised seal or a flat sealing surface.

（4）Hollow or semi-sealed structure

The design of the Neoprene EPDM Bonded Sealing Washers is that a metal outer ring is covered with a rubber inner ring. The bottom rubber is slightly higher than the metal edge, ensuring that the sealing surface is the first point of contact.

（5）Anti-slip and positioning structure

There is no gap between the metal outer edge and the rubber inner edge. When tightened, the rubber is compressed until it reaches the metal plane, achieving the "positioning compression" function.

（6）Standardized dimensions

Common hole diameters, outer diameters and thicknesses follow international standards and can be directly replaced with ordinary flat washers or O-rings in combination.

Working principle

The Neoprene EPDM Bonded Sealing Washers is a type of limit-compression sealing component. Now, let me introduce to you the working principle of it.

（1）Initial Contact

When the bolt passes through the inner hole of the Neoprene EPDM Bonded Sealing Washers and begins to be tightened, the chloroprene rubber layer at the bottom of the gasket first comes into contact with the surface of the connected component. At this point, the rubber has not undergone significant deformation, and there is still a small gap between the metal outer ring and the surface of the connected component.

（2）Elastic compression

Continue to tighten, the chloroprene rubber is subjected to pressure and undergoes elastic deformation. The rubber is pressed into the surface of the connection component to form a "Fitting seal". At the same time, due to the pressure, the rubber generates a rebound force, which presses the sealing cover tightly in the opposite direction to prevent the fluid from passing through.

（3）Metal stopper

When the rubber is compressed to a certain extent, the outer edge of the metal outer ring comes into contact with the surface of the connected component. The rigidity of the metal determines the compression stop point - the rubber will not be compressed indefinitely.