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进口双偏心硬密封法兰蝶阀-美国阿卡迪亚品牌

进口双偏心硬密封法兰蝶阀Product Description:

A valve plate structure and a hard sealing structure that can cooperate with the valve plate structure; The valve plate structure is arranged in the inner cavity of the valve body, the valve rod is arranged in the shaft hole of the valve body, the valve rod is connected with the valve plate structure, the shaft hole of the valve body is provided with a packing structure capable of sealing the shaft hole, and the packing structure is arranged between the valve rod and the valve body; The hard seal structure includes an elastic element, a sealing pressure ring and a hard seal ring with elasticity. The longitudinal section of the hard seal ring is Z-shaped. The inner cavity of the valve body is provided with a circular groove. The hard seal ring is pressed in the circular groove by the sealing pressure ring. The sealing pressure ring is detachably connected with the valve body. A double eccentric hard sealing flange butterfly valve solves the technical problem that the hard sealing ring provided on the disc plate in the prior art is easy to have insufficient sealing performance, and the traditional hard sealing ring does not have good compression performance.

进口双偏心硬密封法兰蝶阀characteristic:

Butterfly valve is also called flap valve, which can be used for switching control of pipeline medium. Butterfly valve refers to a kind of valve whose closing member (valve disc or butterfly plate) rotates around the valve axis to open and close. It mainly plays the role of cutting off and throttling on the pipeline. Its main structural forms include center line butterfly valve, eccentric butterfly valve, double eccentric butterfly valve, triple eccentric butterfly valve, etc. its advantages are small rotating torque, flexible operation, simple structure and convenient use. The butterfly valve is applicable to the pipelines conveying various corrosive and non corrosive fluid media in the engineering systems of generator, gas, natural gas, liquefied petroleum gas, city gas, cold and hot air, chemical smelting, power generation and environmental protection, and is used to regulate and cut off the flow of media;

进口双偏心硬密封法兰蝶阀Principle:

The hard seal structure includes an elastic element, a sealing pressure ring and an elastic hard seal ring. The longitudinal section of the hard seal ring is provided with two corners. The two corners are arranged on the opposite side of the hard seal ring. The included angle of the corners is β，β The angle is 30 degrees to 60 degrees. The inner cavity of the valve body is provided with a circular groove that can accommodate the deformation of the hard sealing ring. The hard sealing ring is pressed in the circular groove by the sealing pressure ring. The elastic element is arranged between the hard sealing ring, the valve body and the sealing gland. The sealing pressure ring and the valve body are detachably connected. When the valve plate structure seals the inner cavity of the valve body, the edge of the valve plate structure is matched with the hard sealing ring.

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