About
our company
Zhengmao Valve Co., Ltd.(UNGM:1214985), founded in 1992 in Yongjia County, Wenzhou (renowned as China's valve manufacturing hub), is a national high-tech enterprise dedicated to the R&D and manufacturing of high-performance industrial valves. With a registered capital of 100 million RMB, the company has over three decades of unwavering commitment to the industry, specializing in valves that meet international API standards.
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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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![Teflon-Lined Butterfly Valve]( "Teflon-Lined Butterfly Valve")
Teflon-Lined Butterfly ValveDesign and Manufacturing: GB 12238 (Midline) Structure length: GB12221 (short series) Flange size: JB78/JB79 (or as specified in the contract) Pressure...
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![Teflon-Lined Butterfly Valve]( "Teflon-Lined Butterfly Valve")
Teflon-Lined Butterfly ValveDesign and Manufacturing: GB 12238 (Midline) Structure length: GB12221 (short series) Flange size: JB78/JB79 (or as specified in the contract) Pressure...
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![Teflon-Lined Butterfly Valve]( "Teflon-Lined Butterfly Valve")
Teflon-Lined Butterfly ValveDesign and Manufacturing: GB 12238 (Midline) Structure length: GB12221 (short series) Flange size: JB78/JB79 (or as specified in the contract) Pressure...
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![Teflon-Lined Check Valve]( "Teflon-Lined Check Valve")
Teflon-Lined Check Valve① Main material: cast iron with PTFE lining, carbon steel with PTFE lining
② Nominal diameter: DN40 to DN400
③ Pressure... -
![Teflon-Lined Globe Valve]( "Teflon-Lined Globe Valve")
Teflon-Lined Globe Valve① Main material: cast iron with PTFE lining, carbon steel with PTFE lining
② Nominal diameter: DN15 to DN400
③ Pressure range:... -
![Teflon-Lined Diaphragm Valve]( "Teflon-Lined Diaphragm Valve")
Teflon-Lined Diaphragm Valve① Main material: cast iron with PTFE lining, carbon steel with PTFE lining ② Nominal diameter: DN40 to DN400 ③ Pressure range: 0.6MPa~4.0MPa ④ Operating...
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![Teflon-Lined Diaphragm Valve]( "Teflon-Lined Diaphragm Valve")
Teflon-Lined Diaphragm Valve① Main material: cast iron with PTFE lining, carbon steel with PTFE lining
② Nominal diameter: DN40 to DN400
③ Pressure range:... -
![YX741X Adjustable Pressure Reducing Stabilizing Valve]( "YX741X Adjustable Pressure Reducing Stabilizing Valve")
YX741X Adjustable Pressure Reducing Stabilizing Valve① Main material: carbon steel, stainless steel, alloy steel
② Nominal diameter: DN50 to DN1600
③ Pressure range:...
Latest news and events
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![What Is A Foot Valve And Why Is It Important in Pump Systems?]()
May 29, 2026What Is A Foot Valve And Why Is It Important in Pump Systems?INTRODUCTION Foot valve is an important component of many pump systems to maintain proper liquid flow and improve pump efficiency. It is usually installed at...view more -
![Russian Client Visits Our Company And Praises Product Quality]()
Dec 17, 2025Russian Client Visits Our Company And Praises Product QualityIn 2025, a Russian customer visited our company to inspect the quality of our products and expressed satisfaction. Zhengmao Valve Co., Ltd. was established i...view more -
![On December 10, 2025, The Company Organized A Team-building Activity, Including A Group Badminton...]()
Dec 12, 2025On December 10, 2025, The Company Organized A Team-building Activity, Including A Group Badminton...On December 10, 2025, the company organized a team-building activity, including a group badminton game.view more
