Needle Valves: Needle Valves is a valve can be precisely adjusted, instrument measuring instrument needle valve is an important part of the pipe system, the main valve and the valve closed, its function is to open or cut off the pipeline path. Needle valve type than other types of valves that can withstand greater pressure, good sealing performance, so it is generally used for small flow, high pressure gas or liquid sealing medium. Metallurgical systems, power systems, petrochemical equipment, city heating system in the high temperature medium pipeline system or device, made of metal for metal seal needle valve. We are one of the professional Needle Valves manufacturers in China. We can manufacture and supply Needle Valves according to your requirements, please contact us!