The needle control valve is the upgraded version 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 very useful for the automatic system of alumina plant, power station, petroleum industry and chemical industry.
1. The protection and flow guide device is installed on the flanged needle control valve.
2. There is a connecting plate designed for the needle control valve to protect the valve stem and valve disc from being eroded.
3. The detachable valve 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.
|Norminal Diameter||2"-16" / DN50-DN400|
|Pressure||Class 150-Class 900 / PN1.6-PN16|
|Material of Valve Body||WCB (A105), WC6, WC9, LCB, CF8(304), CF8M(316), CF3(304L), CF3M(316L), etc.|
|Connection Type of Needle Control Valve||Flange|
|Design Standard||ASME、 DIN|
Alumina Plant, High-pressure Digestion Workshop, Tube Digestion Process, Nine-level Self Evaporator, Feeding