The control valve structure is divided into the following: single seat control valve, sleeve control valve, cage control valve, double seat control valve,3-way control valve, angle control valve and other common mechanisms. 

The Specific control valve application is as follows:
1. single seat control valve application: suitable for strict leakage, low pressure difference before and after valve and a certain viscosity occasion. 
2. sleeve control valve application: especially suitable for occasions with large flow rate, large pressure difference between front and back of the valve and weak leakage requirements. 
3. Cage control valve application: especially suitable for working places where the pressure difference is small and the pressure difference between front and back of the valve is large. 
4. Double seat control valve application: suitable for clean media with weak leakage requirements and large pressure difference. 
5. 3-way control valve application: especially suitable for the temperature control system of oil industry heat exchanger and the automatic control system of various industries. 
6.Angle control valve application: especially suitable for high viscosity, containing suspension and granular media fluid, which can avoid coking, bonding and blockage.