Soft seal fixed ball valve turning-out-preventing valve carrier
A fixed ball valve, soft sealing technology, applied in the direction of valve devices, cocks including cut-off devices, engine components, etc., can solve the problem that the sealing effect of the soft sealing seat is deteriorated, and the mechanical properties of the soft sealing material such as elasticity, hardness, tensile strength are affected. and other problems, to achieve the effect of enhancing sealing performance and reliability, and reliable sealing
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[0020] Embodiment: A soft-seal fixed ball valve anti-turn-over valve seat, comprising a valve seat support ring 1 and a valve seat soft sealing ring 2. The valve seat support ring has a ring of soft sealing valve seat grooves, and the valve seat is softly sealed The ring is embedded in the soft sealing valve seat groove.
[0021] Each side wall of the soft sealing valve seat groove is provided with a barb 3. When the soft seat ring is pressed into the soft seat groove, the barbs are inlaid and squeezed into the soft seat ring to prevent the soft seat ring from turning out due to medium pressure and impact.
[0022] The bottom of the soft-seal valve seat groove is provided with a plurality of convex flutes 4 with a triangular cross section. After the corrugated valve seat soft sealing ring is pressed into the groove, the elasticity of the soft sealing material and the reaction force of the anti-turning barb can be used to effectively enhance the sealing performance and reliability ...
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