Zhejiang Shanliu Valve Technology Co., Ltd. is a modern innovative technology enterprise deeply engaged in the field of fluid control valves, integrating research and development, design, production, sales, and service. The company headquarters and manufacturing base are located in Yongjia, Wenzhou, Zhejiang, known as the "hometown of Chinese pumps and valves" nationwide. The unique valve industry environment provides us with a solid supply chain guarantee and innovation drive.
Since its establishment in 2018, the company has been dedicated to the research and manufacturing of key valve products and equipment for urban water supply and drainage, water conservancy and hydropower, municipal pipeline networks, fire protection systems, and environmental water treatment systems. We deeply understand the strict requirements of water systems for safe, reliable, and efficient operation, and are committed to providing one-stop valve solutions for global water engineering. We mainly produce various water supply and drainage valve products such as gate valves, butterfly valves, regulating valves, check valves, pressure reducing valves, air valves, hydraulic control valves, etc.
The core concept of the production management system for water supply and drainage valves at Zhejiang Shanliu Valve Technology Co., Ltd. is "zero defects, full traceability, and continuous improvement" as the quality policy. We have established a standardized, data-driven production management system that covers the entire process from raw materials to after-sales service, ensuring that every valve leaving the factory is of high quality.
Our standardized design strictly follows international and domestic authoritative standards such as GB (Chinese National Standards), ISO, API, AWWA (American Water Works Association), etc. Modular design of components for valves in the same series to improve universality, shorten production cycles, and reduce maintenance costs. CAD/CAE applications use computer-aided design for structural optimization and finite element analysis to simulate the stress state of valves under pressure, water hammer, and other working conditions, ensuring structural safety from the source.
The production process of Zhejiang Shanliu Valve is standardized for each type of product and each process, and a detailed "Operation Manual" is formulated to clarify the operating specifications, equipment parameters, and inspection standards. Conduct chemical composition, mechanical properties, and non-destructive testing (such as X-ray and ultrasonic) on the blank according to different requirements; Evaluate and strictly control the qualifications of welders, welding materials, and welding processes; Key components and parts undergo precise heat treatment as needed to eliminate internal stress, improve metallographic structure, and ensure material properties; Strictly control the welding materials (such as stainless steel and hard alloys) and processes, and use high-precision grinding equipment to ensure the fit and smoothness of the sealing pair. Workshop layout and 5S management implement lean production layout, reduce material handling, and improve process efficiency. We conduct quality inspection and testing of the entire process of factory products, setting inspection points at each key process (such as after processing and heat treatment), and implementing a three inspection system combining "self inspection, mutual inspection, and special inspection".
All of our products have unique identification numbers, which can be traced back to their production batches, raw material sources, processing data, inspection records, and operators through the traceability system; All inspection and testing data are recorded and archived. Using statistical techniques such as SPC to analyze data and monitor the stability of process capabilities; Initiate root cause analysis for non-conforming products or customer feedback issues that arise during the production process, and take effective corrective and preventive measures to prevent the problem from recurring; Regularly hold quality analysis meetings to encourage employees to propose rational suggestions, continuously optimize processes, improve efficiency and product quality.
We advocate for a "technology-based, quality-oriented, and service-oriented" outlook for the future. Zhejiang Shanliu Valve Technology Co., Ltd. will adhere to the business philosophy of "perfection and brilliance", continue to innovate and strive for excellence, and aspire to become a world-class supplier of fluid control equipment, contributing to the construction of a safe, efficient, and intelligent modern smart water system with the power of "Shanliu".
Zhejiang Shanliu Valve Technology Co., Ltd. implements a rigorous production management system, which not only ensures that water supply and drainage valve products meet high standards when leaving the factory, but also ensures their stable operation during decades of service, providing a solid and reliable guarantee for the "lifeline" project of the city. This system is an important manifestation of the company's core competitiveness and an important commitment to conveying confidence to customers.
"The greatest virtue is like water—ever flowing, ever enduring."
Zhejiang Shanliu Valve Technology Co., Ltd
