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Founded in September 1992, QILONG manufactures a comprehensive range of industrial ball valves, including those designed for critical media service, low-temperature cryogenic applications, high-temperature service, and underground fully welded ball valves, among others.
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Trunnion Ball Valve
Floating Ball Valve
Metal Seat Ball Valve
Top-Entry Ball Valve
Fully Welded Ball Valve
3-way/ 4-way Ball Valve
DBB Ball Valve
Actuated ball valve
ANSI BALL VALVE
Crogenic Ball Valve
Special Alloy Ballvalve
Gost ball valve
About Us
About
Founded in September 1992, QILONG manufactures a comprehensive range of industrial ball valves, including those designed for critical media service, low-temperature cryogenic applications, high-temperature service, and underground fully welded ball valves, among others.
View More
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Top‑Entry Ball Valve: Advantages, Features, Sizes, Pressure Ratings, Materials and Application Conditions
Mar 2,2026
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Top‑Entry Ball Valve: Advantages, Features, Sizes, Pressure Ratings, Materials and Application Conditions
Mar 2,2026
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Qilong Valve Official Website Redesign Officially Launched
Mar 2,2026
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Qilong Valve Official Website Redesign Officially Launched
Mar 2,2026
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Product Description of High-Pressure Large-Bore Ball Valves for Export to Russia
Feb 6,2026
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Product Description of High-Pressure Large-Bore Ball Valves for Export to Russia
Feb 6,2026
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Trunnion Ball Valve
Actuated ball valve
ANSI BALL VALVE
Crogenic Ball Valve
Special Alloy Ballvalve
Gost ball valve
Floating Ball Valve
Metal Seat Ball Valve
Top-Entry Ball Valve
Fully Welded Ball Valve
3-way/ 4-way Ball Valve
DBB Ball Valve
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