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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![AX742X Safe Pressure DischargingRetaining Valve]( "AX742X Safe Pressure DischargingRetaining Valve")
AX742X Safe Pressure DischargingRetaining Valve① Main material: carbon steel, stainless steel, alloy steel
② Nominal diameter: DN50 to DN1600
③ Pressure range:... -
![Basket Filtey]( "Basket Filtey")
Basket Filtey① Main material: carbon steel, stainless steel, alloy steel
② Nominal diameter: DN25 to DN600
③ Pressure range:... -
![Block Out Flexible Rod Valve Closure]( "Block Out Flexible Rod Valve Closure")
Block Out Flexible Rod Valve ClosureThe open elastic seat gate valve has the advantages of elastic seat gate valve, and can display the valve opening more intuitively, and open and ...
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![Bottom Valve]( "Bottom Valve")
Bottom Valve① Main material: carbon steel, stainless steel, alloy steel
② Nominal diameter: NPS1.5 "~24", DN40~DN600
③ Pressure range: Class... -
![Flange Dimension]( "Flange Dimension")
Flange DimensionAppendix A: Steel Pipe Flanges ASME/ANSI B16.5, MSS SP-44
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![Flange Dimension4]( "Flange Dimension4")
Flange Dimension4Appendix B: Steel Pipe Flange JB/T79.3-94
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![Flange Dimensions 2]( "Flange Dimensions 2")
Flange Dimensions 2Appendix A: Steel Pipe Flanges ASME/ANSI B16.5, MSS SP-44
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![Flange Dimensions 3]( "Flange Dimensions 3")
Flange Dimensions 3Appendix B: Steel Pipe Flange JB/T79.1-94
Latest news and events
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![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 -
![Malaysian Customer Visits Our Factory And Gives High Recognition (Dec 11, 2025)]()
Dec 12, 2025Malaysian Customer Visits Our Factory And Gives High Recognition (Dec 11, 2025)On December 11, 2025, a Malaysian customer visited our factory and expressed great satisfaction, recognizing our production scale and product quality. Zhengm...view more
