Backup Rings&Teflon Back-up Rings

Model NO.: SX003 Application: Car,Pumps,Electric,Bearings,Cylinder,Valve Performance: Wear Standard: Standard, Nonstandard Factory Visit: Avaiable Trademark: Saixuan Specification: Standard&Nonstandard or Customized HS Code: 3926901000 Material: Pefe,PA,High-Durometer Nitrile, Nylon, or PTFE, Type: Dust Seal Shape: Square Ring Company Type: Manufacturer Quality Assurance: SGS,CIQ,Ce,RoHS,Rech Ect Transport Package: PP Bag, Cartons or Customer Request Origin: Hebei China
A Back Up Ring is a ring of hard, extrusion resistant material such as high-durometer Nitrile, Nylon, or PTFE, which is designed to fit between an O-ring and an extrusion gap, to prevent the extrusion of the O-ring leading to O-ring failure. 
Back-Up Rings are used with a primary seal such as an o-ring in both dynamic and static applications to prevent extrusion of the oring when it is subject to high pressures, there are excessive extrusion gaps present in the application, or the o-ring is exposed to elevated temperatures. Elevated temperatures (160°F and higher) impose a severe burden on the physical and mechanical properties of rubber O-Rings which further increases their tendency to extrude. Two back-up rings should be used with one on each side of the primary seal.

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Product Categories : Back-Up Ring ,Gasket&Washer