Catalog excerpts
Shenzhen Dechengwang Technology Co., Ltd Floor 2-3, Bld D, Jinhengrun Industrial Park, Xintang, Guanlan, Longhua District, Shenzhen, CN 518110 Tel: 0086 755 2328 3050 Fax: 0086 755 8372 2725 E: info@ptfedf.com PTFE Back-up Ring Backup rings provide additional extrusion resistance and prevent damage to O-Rings and seals. PTFE Back-up Ring Materials virgin PTFE, filled PTFE. PTFE O Ring are mainly used for static sealing application in pipes, cylinders, bushings, stems, flanges and connections. Where chemical and physical inertia, as well as resistance to friction, temperature and ageing are particularly strategic. Backup rings are not seals themselves, but are used in conjunction with O-rings or other seals in high-pressure applications. Backup rings are installed in the downstream side of the gland, however can be installed either side of the O-ring to give a high performance double acting seal. Materials virgin PTFE, filled PTFE. Sizes and shapes According to customer drawing. Sizes and shapes According to customer drawing.
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