Due to the strong corrosive nature of chemical products in petrochemical production, rubber seals do not play a role in a highly corrosive environment. Therefore, chemical production puts special requirements on the sealing surface materials of some valves. In some environments where plastic sealing rings cannot be sealed, the valves are required to achieve a rigid seal to resist the corrosion of strong corrosive agents.
China Lock Washers Suppliers
Washer, machine component that is used in conjunction with a screw fastener such as a Bolt and nut and that usually serves either to keep the screw from loosening or to distribute the load from the nut or bolt head over a larger area. For load distribution, thin flat rings of soft steel are usual.
Lock Washers,Spring Washer,Flat Washers,Grade A Washers,Bonded Seal Washers
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