PTFE Back up Ring Basic Info :
1. All raw-material purchased from: DuPont (US) /  Dow Corning (Germany) / Bayer (Germany) / KRAIBURG / 3M , products hardness can made from 30Shore A to 95Shore A.
2. Had own mold department more than 20000 size mold , Inner diameter from 0.05mm to 1.2m, C/S from 0.5mm to 20mmcan be a molding for one time shape, biggest ID can made over 6m , C/S over 30m
3.Applied industry:   chemical industry, petroleum Industry, medical technique, food industry, sewage-disposal industry, steel industry, and so on.
4. Applied equipment :  Mechanical sealing, pressure vessel, gas compressor, reaction vessel, heat exchanger, boiler, filter and so on.
5.Features:
A.High strength, corrosion resistant, insulation, high and low temperature resistance, long service life and convenient installation

B.-40~+260 Hydraulic oil, Lubricating oil, water, steam Temperature Range [°C] Working Medium

6.Operation conditions: Pressure: <=50MPa
7. Factory authentication by TS16949 and products pass : Wras/ KTW-W270/ Warremark/ LFGB / RoHs / Reach / FDA certificate