RS-5015 PTFE packing is braided from raw teflon tape,fiber(or called"split-yarn")or teflon with filled carbon micro-particle(or called "black teflon").Normally used at atatic sealing locations. It has perfect corrosion resistance. and "Black teflon"can be used at dynamic sealing location under middle pressure. can used in general sealing performance. Scope of Application 1.Working temperature:~260℃ 2.Working pressure:≤6.4MPa 3.Applicable to the medium PH range:0-14 4.Product size: 3 x 3mm-50mm x 50mm