HomeAbout Us Company Profile

Company Profile

Zhengmao Valve Co., Ltd. is headquartered in Oubei Town, Wenzhou City, China. Founded in 1992, Zhengmao Valve Co., Ltd. has been devoted to the R&D and manufacture of industrial valves for nearly 30 years, focusing on the effective control and performance optimization of industrial pipelines. The registered capital of the enterprise is 100 million yuan, and now it is a state high-tech enterprise, a AAA-class enterprise of "abiding by contracts and stressing credit" in Zhejiang Province, and an honest private enterprise in Zhejiang Province. Now the company has Dongou Industrial Zone, Zhejiang Lishui Industrial Zone, Tangtou Industrial Zone, three major valve production bases, a total area of 78600 square meters, more than 500 employees, 54 senior titles. Now it has formed a complete industrial chain consisting of valve R&D and design, valve body precision casting, whole machine production, all-round testing, and precise marketing.

The company's leading products include gate valves, butterfly valves, ball valves, globe valves, check valves, discharging valves, filters, special valves, etc. There are more than 60 series, several thousand types of specifications, the main valve materials are WCB, WC6, CF8, CF3, duplex stainless steel, pure titanium, pure nickel, Monel alloy and hundreds of other materials. The products cover the fields of high, medium and low pressure valves. The products serve the petrochemical, pharmaceutical, metallurgical, electric power, petroleum, water supply and drainage, gas and other industries at home and abroad. The customers are all over the world. The products create value for customers with their quality, and have won the honors of famous brand products in Wenzhou and famous trademarks in Wenzhou.

Quality is the cornerstone of an enterprise's foothold, because the company's unremitting pursuit of quality through ISO 9001, ISO14001, ISO18001, CE, API, PCCC and other certifications, access to special equipment pressure pipeline components (TS) A1 production license, the establishment of a sound quality assurance system. The company established the valve performance test center under the simulated real working conditions of the products, and introduced the German Blake direct-reading spectrometer, Nietong alloy analyzer, Shimadzu helium leakage detector, ultra-low temperature test system, ultrasonic flaw detector, universal material test platform, impact test machine, metallographic microscope, etc. Advanced testing equipments such as ultrasonic thickness gauge and Rockwell hardness tester carry out all-round testing on the valve. The testing temperature of the product is accurately controlled from -196 C at low temperature to - 500 C at high temperature to ensure the safe operation of the product under various harsh conditions.

Innovation is the driving force of enterprise development. The company has set up a special industrial valve R&D center with 31 R&D personnel. Now it is a state high-tech enterprise and a science and technology enterprise in Wenzhou City. It has obtained 45 national patents, including 4 invention patents, and has been developed with famous universities such as Shaanxi University of Science and Technology and Xi'an Jiaotong University for a long time. Cooperation in industry, University and research has yielded fruitful results.

In the future, Zhengmao will continue to lead the development of industrial valves with quality and innovation to meet the ever-changing challenges in the global valve field.


Wenzhou headquarters:

The company is headquartered in Oubei Town, Wenzhou, which is the "hometown of Chinese pumps and valves". It was founded in 1992 and now covers an area of 22,000 square meters. It is the core part of enterprise management, operation, R&D and sales.


Lishui Company:

In response to the Zhejiang government's "cooperation between mountains and seas" investment project, our company invested in Lishui City in 2009 to build a new production base, covering an area of 35000 square meters, mainly responsible for export valve production.


Foundry branch:

The foundry branch was established in 2007. In 2013, the new factory building under Wenzhou Bridge was completed, and the casting production capacity and product quality were further improved, which is an important part of the industrial chain layout.


Shanghai Branch:

Established in 2004, Shanghai Branch relies on the talent, regional and economic advantages of Shanghai's international metropolitan platform, and is mainly responsible for corporate export trade, new product development and after-sales service.