Installs between mating flanges with 10 to 20% the weight of flanged swing checks in popular sizes - Saves money in initial valve cost and provides lower installation cost.

• 安装在配套法兰之间,在常用通径上,其重量只是法兰旋启式止回阀的10到20%25。-节约阀门初始采购成本,降低安装成本。