CompanyProfile Beijing Valve General Factory Group Co., Ltd. (BVMC), originally known as Beijing Valve General Plant, was founded in 1952. Thus it has more than 50 years history in valve manufacturing and developing, which is not only the leading enterprise of former National Mechanical Department in producing high & middle pressure valve and steam trap valve, and also the director member of Nati
缓闭式止回阀 , 止回阀 300x 缓闭式止回阀是安装在高层建筑给水系统以及其他给水系统的水泵出口处、 防止介质倒流、 水锤 及水击现象的智能型阀门。该阀兼具电动阀、逆止阀和水锤消除器三种功能,可有效地提高供水系统 的安全可靠’眭。并将缓开、速闭、缓闭消除水锤的技术原理一体化,防止开泵水锤和停泵水锤的产 生.只需操作水泵电机启闭按扭,阀门即可按照水泵操作规程自动实现启闭,流量大、压力损失小, 适用于 600口径以下的阀门 二、主要外形连接尺寸 DN 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 L 150 160 180 200 203 216 241 292 330 356 495 622 698 787 914 978 H1 106 106 106 137 137 145 178 232 286 318 413 5