Valves are control components in fluid delivery systems that have functions such as shut-off, regulation, diversion, backflow prevention, regulation, shunting or overflow relief. Valves for fluid control systems range from simple shut-off valves to the wide variety of valves used in extremely complex self-control systems. But what is the relationship between valve diameter and media flow rate? Wode WODE engineers from Germany share this with the following users:
1. It is well known that the flow rate and flow rate of the valve mainly depend on the diameter of the valve, and also on the resistance of the structure of the valve to the medium. At the same time, it has certain factors such as the pressure of the valve, the temperature and the concentration of the medium. inner relationship.
2, the flow path area of the valve is directly related to the flow rate and flow rate, and the flow rate and flow rate are two quantities that are interdependent. When the flow rate is constant, the flow rate is large, and the flow path area can be smaller; the flow rate is small, and the flow path area can be larger. On the contrary, the flow passage area is large, the flow velocity is small, the flow passage area is small, and the flow velocity is large.
3, the flow rate of the medium is large, the valve diameter can be smaller, but the resistance loss is large, and the valve is easy to damage. The flow rate is large, which will cause electrostatic effects on flammable and explosive media, causing danger; the flow rate is too small, the efficiency is low, and it is uneconomical. For mediums with high viscosity and explosiveness, a small flow rate should be taken. The oil and the liquid with high viscosity select the flow rate according to the viscosity, and generally take 0.1 to 2 m/s.
4. In general, the flow rate is known and the flow rate can be determined empirically. The nominal diameter of the valve can be calculated from the flow rate and flow rate.
5. The valve has the same diameter. The structure of the valve is different, and the resistance of the fluid is different. Under the same conditions, the greater the resistance coefficient of the valve, the more the flow rate and flow rate of the fluid passing through the valve decrease; the smaller the resistance coefficient of the valve, the less the flow rate and flow rate of the fluid passing through the valve.