The rise of soft sealing materials is for a reason. Metal-wound gaskets Some scientific writers have vividly compared metal and mechanical sealing materials to "the heroes of the customs". They hold the "fortress" of the machinery and prevent the medium from "bubbing, escaping, dripping, leaking". The materials such as asbestos, rubber, soft polytetrafluoroethylene, flexible graphite packing and so on are "natural" soft and delicate, just like the towel in the sealing material. People find that these soft things are "skilled" and have the "hard skills" that the "tough guys" can't do. In terms of graphite packing, the chemical stability is higher than that of gold, ceramics, special steels and alloys, and can withstand high and low temperatures. Strong acid and alkali, excellent corrosion resistance, ideal sealing material for chemical pipelines, valves, valve cores and equipment containers. The raw material tape made of graphite packing is used for pipe sealing instead of the traditional white lacquer wire, which is clean and convenient. There is also flexible graphite, which has excellent sealing performance, can withstand high temperature, be resistant to abrasion and corrosion, and is also resistant to radiation. It is also favored by atomic energy, aerospace and other demanding cutting-edge sciences. 3PC ball valve,DIN flange ball valve,stainless steel ball valve Wenzhou Dico Valve Technology Co.,Ltd. , https://www.dicovalves.com