The working characteristics of stainless steel check valve
The working characteristics of stainless steel one-way valve are that the load changes greatly, the opening and closing frequency is small, and when it is closed or opened after being connected, the applicable period is long, and the movement of moving parts is not required. However, if switching is required, it must move flexibly, which is stricter than general mechanical movement.
The stainless steel check valve is characterized as fast closing in many practical applications, but at the moment when the stainless steel check valve is closed, the medium flows in the direction. Pipeline system In the high-pressure pipeline system where multiple pumps are applied in parallel, the water hammer problem of stainless steel check valves is more prominent.
Water hammer is a pressure wave in the transient flow of a pressure pipeline, and it is a hydraulic shock phenomenon caused by the change of the fluid velocity in the pressure pipeline to increase or decrease the pressure. The physical reason is the combined effect of fluid incompressibility, fluid motion inertia and pipeline elasticity. In order to prevent the danger of water hammer in the pipeline, over the years, people have adopted some new structures and new materials in the design of the check valve to minimize the impact force of the water hammer while ensuring the applicable performance of the check valve. Good progress has been made.