Our History
• In April 1999, Chairman of Dagao started his experience in the valve manufacturing.
• In July 2012, The predecessor of Dagao was established, main products covering gate valve, globe valve, check valve, butterfly valves etc.
• In February 2013, constructed its 2000 square meters factories, enhance production ability for facilities, employees up to 30.
• In March 2015, became the member of Wenzhou Pump & valve Industrial Association.
• In March 2015, win the honor of China quality, service & credit class AAA enterprise.
• In September 2015, win the honor of Zhejiang Quality Trustworthy Product.
• In Novemeber 2015, approved the special equipment type-examination certificate.
• In December 2015, win the honor of Zhejiang Green enterprise.
• In February 2016, constructed its another 3000 square meters factories, enlarge product range for petrochemical, power station equipments.
• In January 2018, approved by ISO9001 International Quality Control System, ISO14001 International Environmental
Management System, ISO18001 International Occpational Healthy And Safety Management System, CE1282 quality system.
• In August to November 2018, the design of cryogenic gate valve, cryogenic globe valve, Y type globe valve, power station applicated high temp. & high pressure PSB globe valve, packing self-tighted sealed structure, angle globe valve, PSB double disc globe valve, PSB check valve were patented.
• In February 2019, gate/ globe/ check valves factory and office move to new place cover 3600 square meters.
• In April 2019, becomes the supply member of China Petroleum & Chemical Corp. (Sinopec), China gas association.
• In May 2019, becomes the supply member of China Huadian Group, China contruction & metal structure association.
• In November 2019, contructed its 13320 square meters factories in Lishui city (45km far to wenzhou city).
• In May 2020, approved by new ISO9001 International Quality Control System, ISO14001 International Environmental Management System, ISO45001 International Occpational Healthy And Safety Management System, CE1282 quality system, Special equipment type test certificate.
• In July 2020, win the honor of China Famous Products, Government procurement good quality supplier.
• In March 2021, approved by API6D American Petroleum Institute Certificate.
Who We Are
Founded in 2012, Zhejiang Dagao Technology Co., Ltd. as subsidiary of Dagao Petrochemical Technology Co.,Ltd. are in charge of expanding oversea markets,import & export. Dagao are headquarted in Dongou Industrial Zone,Oubei Street, Yongjia County, Wenzhou City, Zhejiang Province, China.The company covers an area of more than 15000 square meters and has a registered capital of 108 million yuan. Its main production bases are located in Wenzhou, Lishui and other places in Zhejiang Province. As one of the advanced valve manufacturer with a set of product development, design, manufacturing, sales and after-sales service.
The company’s main products are: ANSI/ DIN/ BS/ JIS/ GOST/ GB standard valves, power station valves, petrochemical valves, water & steam systeam valves, metallurgical valves, forged steel valves, control valves, fluorine/rubber lined valves and other products. The product design and structure meet the market demand for advanced valves. At present, the company have over 100 employees, and have over 100 high-precision machanical equipment, equipped with advanced quality testing and performance inspection equipment, ultrasonic thickness gauge, spectrum analyzer, flaw detector, hardness tester, chemical analysis, 2D and 3D software design etc. To ensure that all products are qualified.
Our products are widely used in electric power, chemical, petroleum, steel, shipbuilding, pharmacy, metallurgy, water supply and drainage, municipal and other industries. All performance of our products can meet the requirements and expectations of our customers, and we can produce made to order products according to their requirements, which are well received by our customers in domestic and abroad.
For many years, the company have been taking "quality is our life”as its slogan, innovation and service as its goal, as strength, profession, integrity, reasonable price, qualified products to meet the needs of users. Welcome new and regular customers in domestic and abroad to visit, guide, negotiate and cooperate to create brilliance together!
Our Product
Industrial Valves
Product Application
DAGO provides Industrial Valves to Chemical Industry, Petroleum & Gas Industry, Plant Construction, Power Plant Engineering, Paper & Pulp Industry, Mining, Gas Utilities, Environmental Technologies, Steam Generation, Water Treatment.
Marine
Oil & Gas
Petrochemical
Power Station
Steam Generation
Water Treatment
Our Certificate
API6D, CE, ISO9001, ISO14001, ISO45001
API 6D-1983
China Green Enterprise Certificate
China Project Recommend Product Supplier
Member of China Contruction & Metal Structure Association
Government Procurement Good Quality Supplier
Member of China Gas Association
API607
CE
China Famous Product Certificate
Enterprise Credit Rating Certificate
ISO9001-2015
ISO14001
Patent9
Patent10
Speical Equipment Type Test Certificate - Ball Valve
Speical Equipment Type Test Certificate - Check Valve
Speical Equipment Type Test Certificate - Gate Valve
Speical Equipment Type Test Certificate - Globe Valve
Production Equipment
Argon Arc Welding Machine
Boring Lathe
CNC Lathe
General Lathes 1
General Lathes 2
Sand Blasting Machine
Pressure Testing Machine 1
Pressure Testing Machine 2
Large Vertical Lathe 1
Large Vertical Lathe 2
Drilling Machine 1
Drilling Machine 2
Production Market
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