spring energized seal is a U-shaped Teflon high-performance seal with a special spring inside. The seal lip (face) is pushed out by the appropriate spring force and the system fluid pressure to gently press the sealed metal surface to produce a very excellent sealing effect. The actuating effect of the spring can overcome the slight eccentricity of the metal mating surface and the wear of the sealing lip, while maintaining the desired sealing performance.
Teflon (PTFE) is a kind of chemical resistance than perfluorinated rubber excellent, good heat resistance sealing material, can be applied to the vast majority of chemical fluids, solvents, as well as hydraulic oil, lubricating oil, its swelling is very small so it can play a long-term sealing performance, the use of a variety of special springs to overcome the elasticity of teflon or other high-performance rubber plastics. Developed can replace most of the seals used in static or dynamic (reciprocating or rotating motion), the use of temperature range from refrigerant to 300℃, pressure from vacuum to ultra-high pressure 700kg moving speed of up to 20m/s, and spring can be adapted to different use environments, stainless steel, ElgiloyHastelloy, etc. Therefore, it can be used in various high-temperature corrosion fluid occasions.
spring energized seal can be made according to AS568A standard O-ring groove (such as radial shaft seal, piston seal, axial face seal, etc.), completely replace the universal O-ring, because there is no swelling trouble, so it can maintain good sealing performance for a long time. For example, the mechanical shaft seal applied to the high-temperature corrosion environment of the petrochemical process, the most common cause of leakage in addition to the uneven wear of the sliding ring, the deterioration of the O-ring damage is also the main cause, using HiPerSeal can completely improve the rubber softening, swelling, surface coarsing, wear and other problems, spring energized seal is suitable for static and dynamic. In addition to the above high temperature corrosion environment sealing applications, because of its low seal lip friction coefficient, seal contact pressure stability, high pressure resistance, allow large radial bias (radialrun-out) and groove size error, it is very suitable for air hydraulic cylinder seals, replace U shape or V shape tightening and obtain excellent sealing performance and service life. Thus, the service life of the mechanical shaft seal is greatly improved.