产品描述 Product Description

进口液动、气动快关止回阀是一种三偏心（大偏心）结构助关缓闭蝶型止回阀。主要由阀体、阀瓣、汽缸、电磁换向阀、阻尼油缸、重锤及支架组成。由于采用三偏心蝶型结构，阀板在启闭过程中缩短了相对摩擦时间，开启主要由介质在阀前与阀后的压差实现，而阀门的关闭则依靠阀板的自重及重锤的作用来自动关闭一段距离，由气压来完成最终的关闭。阻尼油缸起到缓冲、阻尼作用。而阻尼油缸可以减少关闭过程中的冲击，消除压力波引起的振动。

The imported hydraulic and pneumatic quick closing check valve is a three eccentric (large eccentric) structure assisted slow closing butterfly type check valve. Mainly composed of valve body, valve disc, cylinder, electromagnetic directional valve, damping oil cylinder, heavy hammer, and bracket. Due to the use of a three eccentric butterfly structure, the valve plate shortens the relative friction time during the opening and closing process. The opening is mainly achieved by the pressure difference between the medium in front of and behind the valve, while the closing of the valve relies on the self weight of the valve plate and the action of a heavy hammer to automatically close for a certain distance, and the final closing is completed by air pressure. The damping oil cylinder plays a buffering and damping role. The damping oil cylinder can reduce the impact during the closing process and eliminate the vibration caused by pressure waves

主要技术性能（Main technical feature）

主要零件材质 Structure and main component materials

安装示意图 installation diagram