Double flap check valve is for the traditional use of swing check valve has a larger volume, the valve closes when the water hammer pressure is higher, the installation size is large and so on. Double flap check valve has the characteristics of short structure length, small volume, light weight, fast flap closing, small water hammer pressure, easy installation, sensitive action, good sealing performance, short flap stroke, simple and compact overall structure.

Double flap check valve consists of valve body, valve flap, valve stem and spring and other parts. The valve flap is two semicircles, and spring reset, the sealing surface can be the body surfacing material or rubber lining, the use of clamp type connection, compact structure. Due to the short closing stroke of the valve flap and spring loading, the closing speed is fast, which can reduce the water hammer phenomenon. Double flap check valve can be installed horizontally or vertically, and can be applied to a variety of fluid media such as water, steam, oil, nitric acid, acetic acid, strong oxidizing media.

Double flap check valve structure length is short, its structural length is only 1/4 ~ 1/8 of the traditional flange check valve, small size, light weight, its weight is only 1/4 ~ 1/20 of the traditional flange check valve, the valve closes quickly, the water hammer pressure is small, the horizontal pipeline or vertical pipeline can be used, easy to install, the flow path is smooth, the fluid resistance is small, the action is sensitive, good sealing performance, the valve is short stroke, Close the valve impact is small, the overall structure, simple and compact, beautiful modeling, long service time.