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进口高压缓闭止回阀美国阿卡迪亚品牌

进口高压缓闭止回阀Product Description:

It includes the valve body and the valve core. The pressure bearing shell of the valve is composed of the valve body and the valve cover. The valve body and the valve cover are clamped by bolts and nuts. The valve body and the valve cover are sealed by sealing rings. The contact parts between the valve core and the valve seat form the inner sealing pair of the valve. The cylindrical spring is installed on the outer circle of the guide rod of the valve core. The head of the valve core is equipped with a piston, which is connected with the guide rod of the valve core by threads. The piston and the inner hole of the valve cover form a slow closing cylinder, The piston end face is provided with a pressure relief hole; The high-pressure slow closing check valve adopts the structural design of built-in slow closing cylinder, and the slow closing time is controlled by the piston pressure relief hole; The conical sealing valve core and spring pre compression structure realize the automatic alignment of valve core and valve seat sealing and the establishment of basic sealing specific pressure (pre compression); At the same time, the medium of the slow closing cylinder is taken from the internal high-pressure medium to avoid the leakage pollution of different media.

 进口高压缓闭止回阀

characteristic:

Check valves are widely used in gas, liquid and multiphase medium pipelines to control the one-way flow of medium. Under high-pressure medium conditions, when the medium flows back, the valve core will be impacted by the high-speed flowing medium and close quickly, resulting in local rapid rise of system pressure, that is, water hammer. Water hammer is very destructive to the system, such as pipeline burst and equipment damage.

Principle:

Working principle and application process: the medium enters from the left inlet of the valve. The medium pressure pushes the valve core open and moves to the right. The valve opens and the medium flows into the downstream. After the valve core is opened, the piston moves outward synchronously, the volume of the slow closing cylinder a gradually expands, and the medium enters the slow closing cylinder a from the pressure relief hole B and fills the inner cavity of the slow closing cylinder a.

（仅供参考）