PTFE Envelope Gasket LW-620: 
 Is a non-metallic PTFE envelope gaskets gasket, generally by the coating and the insert of two parts. Made of Teflon thickness with 0.5 - 1mm ring gasket, in the incision into the core material (asbestos or rubber plate) section of the "Y" type or "]" pad package type, the species PTFE gasket while maintaining high corrosion resistance and a higher spring rate, excellent sealing performance, can be used in petroleum, chemical, power, pharmaceutical, food and other industrial equipment, static sealing flange . Temperature: -100 ℃ - 260 ℃ Working pressure :0 - 10 .0 Mpa SPECIFICATIONS: DN10 - DN2000