The needle control valve is the upgraded type of the ordinary control valve developed by our company. The fixed valve seat and the removable valve disc compose the throttle device.Through the adjustment on the location of the valve disc,flow regulation can be realized.This product is  widely used in the automatic system of alumina plant,power station,petroleum industry and chemical industry.

Benefits
1.The protection and flow guide device is installed on the flange connection needled control valve.
2.There is a connecting plated designed for the needle control valve to protect the valve stem and valve disc from being eroded.
3.3.The detachable vale is seat makes for easy maintenance of the liquid control valve for chemical industry .
4. To withstand the erosion of the medium flowing at high speed,the control valve for power station is provided with overlaid hard alloy seat.
Technical specification
Size :   2''~16''/DN50`DN400
Pressure :    Class 150~class900   PN1.6-PN16
Body material:   WCB(A105),WC6,WC9,etc.
Connection method: Flange
Driving method: Electric
Applications
Alumina plant,High pressure Digestion Workshop,Tube Digestion Process,Nine-Level Evaporator,Feeding