How to buy small flow control valve

How to buy small flow control valve

In addition to the general industrial process control, there are many applications that need to control very small flow in laboratories and test plants. Such a small flow makes its fully open flow smaller than the leakage of general valves. Therefore, the general process can not be guaranteed only by general machining. The only way to solve the problem is to conduct experimental calibration on the flow characteristics of each valve to achieve the final calibration, Real traffic.

structural style

1.Special trim is used in standard valve bodies. This method can usually achieve kV = 0.03. Using special valve trim in standard valve body has good economy and expansibility, because it will reduce the requirements for spare parts of special valve body and actuator, and also provide convenience for the expansion of flow in the future (only the standard valve trim needs to be replaced in the future).

2.The special control valve designed for ultra-small flow regulation can achieve a Kv value of about 0.001, with approximate linear characteristics, integrated forging, compact structure and light weight.