Ningbo Boman Mechanical & Technology Co., Ltd.  

Product Name: PTFE Back up Ring/PTFE Sealing Ring/Back up Ring Model NO.: PTFE Back up Ring Standard: Standard, Nonstandard Shape: Square Ring Performance: High Pressure Type: Dust Seal Application: Pumps Material: PU Storage Life: 10years Trademark: Boman Transport Package: Polybag and Carton Specification: AS568/BS1516/C92/V. S. G. P Origin: China HS Code: 4016931000 Product Description Back up Ring Basic Info :1.Raw-Material Brand:DuPont (US) /Dow Corning (Germany) /Bayer (Germany) /3M2.Type: Rubber Back up Ring & PTFE Back up Ring3.Hardness: From 20Shore Ato 95Shore Aacceptable4.Size Range: ID from 4mm to 1m can made. Biggest ID can made over 6m , C/S over 30m5.Products Application: metallurgical, chemical, engineering, construction, mining, petroleum machinery and various types of instrumentation6.Operation conditions: Pressure <=50MPa7.Applied equipment : Mechanical sealing, pressure vessel, gas compressor, reaction vessel, heat exchanger, boiler, filter and so on.8.Factory get ISO/TS 16949:2009 certificated.Products withWras/ KTW-W270/ Watermark/ LFGB /RoHs /Reach /FDA certificate.9. All customize size is acceptable.about BomanWe always adhere to scientific and technological innovation and development, continue to provide professional solutions and high-quality products to our customer and win the unanimous recognition. Now products through the WRS, UL, CE, SGS, HY, CSA, many well-known laboratory certified. Our Major customers include: Philips, Danieli, Watts, Chesterton, Würth industry, Volkswagen, etc.