Novel flange seal washer

Abstract

The invention discloses a novel flange seal washer. The section of the novel flange seal washer is of a combined structure characterized in that an outer circle part which is rectangular is combined with an inner circle part which is in an O shape. According to the dimension of the section, the rectangular length is a, the width is b, and the radius of the O shape is r, wherein 2r is larger than or equal to b. Accordingly, the flange seal washer is a combined body of a flange ring and an O-shaped ring, the siamesed annular O-shaped ring is designed on the inner ring of a slab type rubber washer, and the sealing performance of the flange seal washer is enhanced due to the shape of the section. The novel flange seal washer has the beneficial effects of being precise to mount and locate and high in sealing safety and stability, and meanwhile the pressure resistance can reach 6 Mpa and is far higher than that of an existing seal washer.

Description

technical field [0001] The invention relates to a flange sealing gasket for flange connection sealing, and belongs to the technical field of sealing elements. Background technique [0002] Traditional flange connection seals generally use flat rubber gaskets, which can withstand low pressures and are generally limited to use below 1.6MPa pressure. In addition, due to their simple structure, the sealing safety is poor. At present, the choice of the hardness of the rubber gasket itself has the following dilemma: although the rubber hardness is high, the pressure resistance is high, but its sealing performance is not good. If the rubber hardness is low, although the sealing performance is better, the gasket is easy to be broken by the internal pressure. , causing leakage. At present, there is no better sealing gasket that can achieve both excellent hardness (pressure resistance) and sealing performance. Contents of the invention [0003] The problem to be solved by the pres...

AI Technical Summary

Problems solved by technology

[0002] Traditional flange connection seals generally use flat rubber gaskets, which can withstand low pressure and are generally limited to use below 1.6MPa pressure. In addition, due to its simple structure, the safety of the seal is poor

At present, the choice of the hardness of the rubber gasket itself has the following dilemma: although the rubber hardness is high, the pressure resistance is high, but its sealing performance is not good. If the rubber hardness is low, although the sealing performance is better, the gasket is easy to be broken by the internal pressure. , causing a leak

At present, there is no better sealing gasket that can achieve both hardness (pressure resistance) and sealing performance.

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