Disc spring can resist fatigue, oxidation resistance, radiation resistance, corrosion resistance, and its excellent production and processing performance, welding performance is excellent. Can produce a variety of shapes complex parts. In aerospace, nuclear power generation, petrochemical industry and extrusion mold. These are used extremely commonly in the above temperature range. High temperature disc springs are key used in tubular reactors, heat exchangers, high temperature valves and high temperature pumps where flange anchor bolts are tightened, especially where the temperature difference exceeds 100℃.

High temperature disc spring, with strong compensation effect, round line compression spring compensation due to thermal expansion and cold contraction caused by the preload constantly change, so that the preload for a long time will not change, avoid anchor bolt fatigue and washers ineffective. The high temperature disc spring can compensate for the change of the preload caused by the change of the working pressure of the medium and avoid the ineffectiveness of the anchor bolts and washers. Spring type safety valve key with the mutual force of spring work, spring type safety valve and closed and not closed two kinds of structure, generally flammable, flammable and explosive or harmful media should be used sealed, vapor or rare gas can be used unsealed, in the spring type safety valve also has a wrench and no wrench, The function of the wrench is mainly to check the convenience level of the piston valve, and sometimes it can be used as a manual emergency pressure relief.