Weidouli Special Valves(WSV), China’s leading valve manufacturer, specialize in industrial valve’s production, research & development, sales and service.


Founded in 1989 


1st Factory: 9500m2

2nd Factory: 33600m2


160 staffs 


(DNV) ISO9001, ISO 14001, OSHAS 18001, API 607/6FA, CE ,TS etc. approvals.


Over 100 sets including CNC and multi-station, Vacuum welding equipment, Vacuum heat treatment furnace, Vacuum surface modification. Test equipments 

such as NITON XRF Alloy analyzer, Direct reading spectrometer, Metallurgical microscope, Ultrasonic thickness measurement, Burawoy hardness test, Nondestructive test etc.


Entirely focused on industrial valves for severe services

Product line   

WSV Valves are built in high corrosion resistant performance materials: duplex and super duplex, titanium alloy, nickel alloys (Hastelloy®, Incoloy®, Inconel®, Monel®, Alloy 20, etc.), zirconium and corrosion resistant alloys across all major industrial applications.

Our products includes ball, gate, check, globe, butterfly, plug, control etc. valves


Valves are delivered worldwide to the chemical engineering, mining project, metallurgy, 

pulp and paper making, power generation, natural gas and offshore and onshore other specific demand applications.


Cooperate sincerely, Create win-win