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Company Profile

Our History

Zhejiang Liangyi Valve Co., Ltd. (LYV®) is a renowned valve manufacturing enterprise located at No.799 Jiniu Street, Lishui City, Zhejiang Province, occupying an area of over 13,000 square meters. With a workforce of more than 100 employees, LYV® specializes in researching, developing, designing, manufacturing, and selling high-quality ball valves and butterfly valves, along with manufacturing gate valves. The company is renowned for its exceptional products and excellent reputation within the industry with over a decade of valve manufacturing experience, LYV®️ consistently delivers top-quality products at competitive prices. 

The LYV®️ product series offers an exciting range of ball valves with a wide variety of options to choose from. We are thrilled to offer you an extensive range of high-quality ball valves to meet your specific needs. Our selection includes trunnion ball valve, floating ball valve, casting ball valve, forged ball valve, Metal sealing ball valve, Soft sealing ball valve, Top entry ball valve, side entry ball valve, al-bronze ball valve, API ball valve, DIN ball valve, Flanged ball valve, Full-welding ball valve, Full bore ball valve, Reduced bore ball valve,Triple offset butterfly valve, Double offset butterfly valve, Concentric butterfly valve, Resilient seat butterfly valve, High performance butterfly valve, Rubber lined butterfly valve, Metal seat butterfly valve, Metal to metal butterfly valve, API butterfly valve, DIN butterfly valve, GOST butterfly valve, Flanged butterfly valve, Lug type butterfly valve, Wafer type butterfly valve. 

Our friendly team of experts is always available to assist you in selecting the perfect valve for your application. You can trust in our confidence and expertise to provide you with the best solution for your needs. With such a wide range of options available, you can be absolutely assured of finding the perfect ball valve to meet your specific needs.

Our exceptional valve products are expertly manufactured using only the highest-quality materials, including stainless steel, carbon steel, alloy steel, duplex stainless steel, titanium, low carbon steel, high nickel alloy, and Monel alloy, all of which conform to the most stringent international standards such as GB, API, ANSI, DIN, GOST and JIS. With a wide range of specifications, they can handle pressure ratings from PN1 to 42Mpa and come in sizes ranging from DN15 to DN1200mm.  

Our valves are incredibly versatile! Plus, they can be operated manually, electrically, pneumatically, or through transfer devices, ensuring ease and efficiency of operation. We're confident that our valves will meet all your needs and exceed your expectations!

Our Factory

LYV®️ is a company that strives to innovate and excel, showcasing our professional expertise and extensive experience in the valve industry. Our factory has a team of experienced professionals who possess profound knowledge of the industry and a spirit of innovation. We emphasize staff training and skills upgrading to ensure that every aspect of production reflects technical excellence.


We have developed a professional and technical team with innovative thinking and a spirit of teamwork to provide our customers with high-quality products. Our close relationships with esteemed valve experts and institutions such as the Wenzhou Pump and Valve Research Institute and Lanzhou University of  Technology have allowed us to conduct research, development, technology transfer, consulting, and technical services to advance valve technology.


Our manufacturing plant is equipped with advanced CNC machine tools, automated assembly lines, and precision quality testing equipment to ensure efficient production. Quality is our top priority, and we follow a strict quality management process to ensure consistent product performance. Each valve represents our pursuit of excellence.


Visit our factory to witness our advanced manufacturing process and the exquisite skills of our team. We uphold the concept of innovation and excellence, leading the industry and providing customers with excellent products and services.


Our valves are used in a wide range of industries including petroleum, chemical,petrochemical, paper, mining, metallurgical, electrical, food, , LPG/LNG, water supply, mechanical equipment, fire protection. LYV®️ offers state-of-the-art valve solutions that meet the highest industry standards.

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