一种法兰式橡胶缓闭逆止阀

Flange formula rubber slowly closes check valve

Abstract

The utility model discloses a flange formula rubber slowly closes check valve, has celiac rubber valve body including one, rubber valve body one end is the valve nozzle, the inside side bend of valve nozzle of rubber valve body is bent, and the other end is equipped with the rubber flange, be connected with liner metal flange on the rubber flange for with outside flange joint, rubber flange and rubber valve body structure as an organic whole, the rubber flange is the same with liner metal flange shape. The utility model discloses it is effectual to prevent flowing backward, flow backwards, utilizes the effect of the elasticity and the reverse backpressure of rubber itself, sealed reliable, and especially novel arcuation valve nozzle further increases the leakproofness and reduces the seepage amount or the ne -leakage.
本实用新型公开了一种法兰式橡胶缓闭逆止阀,包括一具有腹腔的橡胶阀体,所述橡胶阀体一端为阀嘴,所述橡胶阀体的阀嘴向内侧弯曲,另一端设有橡胶法兰,所述橡胶法兰上连接有衬垫金属法兰,用于同外部法兰连接,所述橡胶法兰与橡胶阀体为一体结构,所述橡胶法兰与衬垫金属法兰形状相同。本实用新型防倒灌、倒流效果好,利用橡胶本身的弹性及反向背压的作用,密封可靠,特别是新型弯曲形阀嘴,进一步增加密封性减少渗漏量或无渗漏。

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