About
our company
Zhengmao Valve Co., Ltd. was established in 1992 in Oubei Street, Yongjia County, Wenzhou City, Zhejiang Province. It is dedicated to the research and development and manufacturing of high-quality industrial valves. The company's registered capital is 100 million yuan. It is currently a national high-tech enterprise, a Zhejiang Province science and technology enterprise, a Zhejiang Province "Contract-abiding and Credit-keeping" AAA-level enterprise, and a Zhejiang Province honest private enterprise.
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WHY
CHOOSE US
It is currently a national high-tech enterprise, a Zhejiang Province science and technology enterprise, a Zhejiang Province "Contract-abiding and Credit-keeping" AAA-level enterprise, and a Zhejiang Province honest private enterprise.
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Complete Process SystemThe company has three major valve production bases in Wenzhou Dongou Industrial Zone, Tangtou Industrial Zone and Zhejiang Lishui Industrial Zone, covering a total area of 78,600 square meters.
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Technical TeamThe company has a total of 510 employees, including 54 with intermediate or senior professional titles and 136 technical personnel.
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Our CertificateThe company has obtained the ISO9001:2015 quality management system certification and has been granted the TS A1-level production license for special equipment pressure pipelines.
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Advanced EquipmentThe company has established a valve testing and inspection center, setting up valve pressure testing rooms, ultra-low temperature testing rooms, high-temperature testing rooms, leakage dispersion testing rooms and material performance laboratories to simulate the actual application conditions of the products.
PRODUCTSCATEGORIES
The ideal choice for
improving efficiency.
The product serves industries such as petrochemicals, pharmaceuticals, metallurgy, power, petroleum, water supply and drainage, and gas.
Our hot sale products
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![Floating Ball Valve]( "Floating Ball Valve")
Floating Ball ValveIn complex working conditions such as petroleum, chemical engineering, and water treatment, a stable and durable valve is crucial for the smooth operation...
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![Trunnion Mounted Ball Valve]( "Trunnion Mounted Ball Valve")
Trunnion Mounted Ball ValveWhen working on high-pressure, large-diameter projects like petroleum refining and long-distance pipelines, the biggest headaches in choosing valves are...
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![Metal-seated Floating Ball Valve]( "Metal-seated Floating Ball Valve")
Metal-seated Floating Ball ValveAnyone in the chemical, petroleum, or metallurgy industry knows that if a valve fails, the production line stops, and safety is at risk. Zhengmao Valve's...
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![Low-Temperature Ball Valve]( "Low-Temperature Ball Valve")
Low-Temperature Ball ValveFriends in the LNG, cold chain, or cryogenic equipment industries all know that valves in low-temperature environments are to fail—if the seal leaks or...
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![Eccentric Hemispherical Ball Valve]( "Eccentric Hemispherical Ball Valve")
Eccentric Hemispherical Ball ValveIn industrial pipeline systems, the stability and efficiency of valves directly determine production efficiency. The eccentric hemispherical valve launched...
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![Wafer Ball Valve]( "Wafer Ball Valve")
Wafer Ball ValveAnyone in industrial operations knows two big headaches with valves: tricky installation and leakage during use. Zhengmao Valve’s wafer ball valve solves...
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![Ultra-Thin Ball Valve]( "Ultra-Thin Ball Valve")
Ultra-Thin Ball ValveIn the field of industrial fluid control, the compactness and reliability of equipment often directly affect the overall system efficiency. The ultra-thin...
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![Jacketed Insulated Ball Valve]( "Jacketed Insulated Ball Valve")
Jacketed Insulated Ball ValveIn industries sensitive to medium temperature such as chemical engineering, pharmaceuticals, and food processing, the thermal insulation and transportation...
Latest news and events
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![The Influence Of Connection Method Differences On Valve Performance]()
Oct 20, 2025The Influence Of Connection Method Differences On Valve PerformanceIt is suitable for medium and high-pressure pipelines. The sealing performance is ensured by uniform fastening with bolts, but the use of double gaskets shou...view more -
![The Influence Of Differences in Flow Channel Design On Valve Performance]()
Oct 19, 2025The Influence Of Differences in Flow Channel Design On Valve PerformanceStraight-through type: It has low fluid resistance and is suitable for high-flow scenarios (such as flat gate valves in long-distance pipelines). Angular ...view more -
![The Influence Of Material Differences On Valve Performance]()
Oct 18, 2025The Influence Of Material Differences On Valve PerformanceCast iron: It is suitable for low-pressure, norm-temperature and neutral media (such as water and air), but it has poor corrosion resistance and is prone to ...view more
