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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![T/L Type Three Way Ball Valve-Q45/Q44]( "T/L Type Three Way Ball Valve-Q45/Q44")
T/L Type Three Way Ball Valve-Q45/Q44① Main material: carbon steel, stainless steel, alloy steel
② Nominal diameter: DN15 to DN600
③ Pressure range:... -
![Bidirectional Pressure Rotary Ball Valve]( "Bidirectional Pressure Rotary Ball Valve")
Bidirectional Pressure Rotary Ball Valve① Main material: carbon steel, stainless steel, alloy steel
② Nominal diameter: NPS2 "~80", DN50~DN2000
③ Pressure range: Class... -
![Oxygen Service Globe Valve]( "Oxygen Service Globe Valve")
Oxygen Service Globe Valve① Main material: Stainless steel
② Nominal diameter: DN15 to DN400
③ Pressure range: 1.0MPa~10.0MPa
④ Operating... -
![API Forged Steel Ball Valve]( "API Forged Steel Ball Valve")
API Forged Steel Ball Valve① Main material: carbon steel, stainless steel, alloy steel
② Nominal diameter: NPS 2 "to NPS 36"
③ Pressure range:... -
![Electric Triple Offset Worm Gear Operated Butterfly Valve]( "Electric Triple Offset Worm Gear Operated Butterfly Valve")
Electric Triple Offset Worm Gear Operated Butterfly ValveFriends in engineering and production management all know that "ease of use" and "reliability" are indispensable in fluid control. The electric butterfly...
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![API Triple Offset Lug Wafer Butterfly Valve]( "API Triple Offset Lug Wafer Butterfly Valve")
API Triple Offset Lug Wafer Butterfly Valve① Main material: carbon steel, stainless steel, alloy steel
② Nominal diameter: NPS 2 "to NPS 36"
③ Pressure range:... -
![API Cryogentic Globe Valve]( "API Cryogentic Globe Valve")
API Cryogentic Globe Valve① Main material: low-temperature carbon steel, stainless steel
② Nominal diameter: NPS 1/2 "to NPS 12"
③ Pressure range:... -
![Cryogenic Gate Valve]( "Cryogenic Gate Valve")
Cryogenic Gate Valve① Main material: low-temperature carbon steel, stainless steel
② Nominal diameter: DN15 to DN1000
③ Pressure range:...
Latest news and events
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![What Are The Classifications Of Check Valves Commonly Used in Industry? What Are The Applicable S...]()
Jul 22, 2026What Are The Classifications Of Check Valves Commonly Used in Industry? What Are The Applicable S...Check valves are also known as one-way and no return valves. Its core function is to automatically open and close according to the flow direction of the medi...view more -
![What Is A Check Valve? What Is Its Core Function?]()
Jul 17, 2026What Is A Check Valve? What Is Its Core Function?1.Basic definitions and structural characteristics of check valve Check valves, also known as one-way valve and check valve, is an indispensable automatic ba...view more -
![Why Are Floating Ball Valves So Popular in Industrial Applications?]()
Jun 27, 2026Why Are Floating Ball Valves So Popular in Industrial Applications?In modern industrial fluid control system, valves not only have the function of opening and closing media, but also directly affect the safety, stability and...view more
