*19 yeas experience in manufacturing and exporting.


*Products:Ball Valve, Ball


*Material: Carbon Steel, Stainless Steel, Alloy Steel etc.

*Size : NPS 1/2''~NPS 40''   DN15~DN1600

*Pressure: Class 150 ~ Class 2500  PN10 ~ PN420

*Reliable Quality Control System.

*PDM-ERP Management System.

*OEM Capability ,Reliability Reputation.

With constant developing, Zhejiang QiLong has grown to become an industry leader in BALL VALVE since founded in 1992.Our goal is to be a partner that brings win-win.

Manually operated, pneumatically and electrically actuated ball valves with standard of API/ANSI, ,DIN, EN, GB, BS, JIS, size: 1/2" to 56", class: 150lb to 2500lb, working temperature -196 degrees celsius to 680 degrees celsius, make general part of Qilong product line.  

We can make all kinds of precision balls, including top entry,metal seat and V type balls. On this base,our products range include floating,trunnion,top entry,metal seat,full welded,NPT ends, SW ends, V type,3-way ball valve,etc. They are widely used as stop and control valves in oil & gas industries, in food processing, petroleum and chemical processing, and other related industries, as well as in gas supply facilities and thermal power engineering.

Well-equipped with metal processing&cutting,machining and testing equipments, including vertical CNC machining centers,CNC machines,advanced physio chemical NDT, spectral analysis, mechanical property testing, ultrasonic fault detectors, ultrasonic thickness gags, also lifting, transportation equipments. 

Zhejiang Qilong carries out strict inspection of every product. The highly responsible inspectors concentrate on every part, and, with the most advanced inspection equipment and strict scientific management, every piece of finished product is capable of standing up under customers’ careful selection. We make the promise that every product reaches the standard before leaving the factory. This is the reason why Qilong products are so popular.


QiLong understands the need to supply more than a quality product. We always strive for finding innovative ways to improve service levels and reduce costs to improve your bottom line profitability.

We strongly suggest you to visit our company to know our quality management system and discuss future business. With our professional experience,  offer excellent quality and best service, hope we can enlarge your market and enjoy a good reputation.