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进口美标铸钢旋启式止回阀哪家品牌好

进口美标铸钢旋启式止回阀Product description:

进口美标铸钢旋启式止回阀American standard cast steel swing check valve is generally applied to pipelines with large pipe diameter, certain flow velocity, and relatively stable flow velocity and pressure. Small diameter forged steel check valves are generally equipped with disc springs, and American standard large diameter cast steel check valves are generally equipped with pressure balancing pipes. When the medium needs to be cut off, the valve stem can prevent the flow of medium in the normal direction. When the medium pressure comes from the downstream, the valve stem can supplement the pressure of the pipe and enhance the tightness of the valve seat backflow. The valve stem can be manually operated or driven by a driver.（仅供参考）