Tanggong Valve

Tanggong Valve Group Co., Ltd. was founded in 1990, with its headquarters located in the Airport New Area, Longwan, Wenzhou, Zhejiang – known as the “China Valve City”. With a registered capital of 468 million RMB, it is a large‑scale comprehensive high‑end valve manufacturer integrating R&D, manufacturing, sales and service. The company is a national high‑tech enterprise and a national Specialized, Sophisticated, Unique, New “Little Giant” Enterprise, with comprehensive strength ranking among the top in China’s valve industry.
The group owns modern production parks equipped with more than 1,500 sets of sophisticated production and testing equipment, including CNC machining centers, CNC lathes, material laboratories and automatic pressure test benches. It has an annual manufacturing capacity of over 100,000 sets of medium‑ and high‑pressure valves. It owns multiple wholly‑owned and holding subsidiaries, forming a complete industrial chain covering casting, precision machining, automatic control, and domestic and international trade, providing solid guarantee for product quality and delivery capability.
The company’s products include general valves such as gate valves, globe valves, check valves, ball valves and butterfly valves, as well as forged steel valves, power station valves, PTFE lined anti‑corrosion valves, marine valves, fully welded ball valves, pneumatic and electric automatic control valves, covering more than 200 series and over ten thousand specifications. Products comply with international and domestic standards including GB, API, ANSI, BS, DIN and JIS. Pressure ratings range from Class 150 to Class 4500, and applicable temperatures range from -196°C to 730°C, meeting working conditions in petrochemical, marine engineering, natural gas, power generation, metallurgy, water treatment and other industries.
The group attaches great importance to quality and certification systems, holding authoritative certifications such as Special Equipment TS A1 License, API 6D, CE, ISO 9001, ISO 14001, as well as marine certifications from CCS, BV, DNV, ABS and other classification societies. It has outstanding advantages in marine valves and high‑pressure special valves. With stable and reliable product quality, complete technical services and competitive cost performance, Tanggong Valve has long served large domestic and foreign state‑owned enterprises and key projects, with products exported to more than 60 countries and regions worldwide.
Adhering to the business philosophy of “Quality-oriented, Technology-driven, Integrity and Win-win Cooperation”, the company continuously promotes technological innovation and intelligent manufacturing upgrading. It is committed to providing global customers with safe, efficient and long‑lasting fluid control solutions, striving to build a world‑class valve brand

Tanggong Valve Group Co., Ltd. was founded in 1990, with its headquarters located at No. 947, Jinhai 2nd Road, Airport New Area, Longwan District, Wenzhou City, Zhejiang Province – known as the “China Valve City”. As a leading large‑scale comprehensive high‑end valve manufacturer in China’s fluid control industry, we boast a complete qualification system and top‑level technology. We are a National High‑tech Enterprise, National Specialized, Sophisticated, Unique and New “Little Giant” Enterprise, Provincial Invisible Champion and Gazelle Enterprise. With a registered capital of 468 million RMB and paid‑in capital of 201 million RMB, our comprehensive strength ranks among the top tier in China’s valve industry.
1. Group Scale & Full Industry Chain Layout
With over 30 years of deep cultivation, the group has built a vertically integrated and full‑chain collaborative industrial ecosystem. It owns 9 wholly‑owned and holding subsidiaries:
Fuding Tanggong Valve Casting, Tanggong Automatic Control Valve, Shanghai Changkai Valve, Zhejiang Jiantou Valve, Tanggong E‑commerce, Ningxia Fulaisi Industry and Trade, Inner Mongolia Haiyufeng, Jiaxing Haoning Import & Export, and Yugong Flange & Pipe Fittings.
The layout covers precision casting, CNC machining, intelligent control, e‑commerce operation, international logistics, and flange & pipe fitting supporting, forming a closed‑loop system from raw material R&D, blank casting, precision machining, assembly and testing to global sales.
The group operates two modern intelligent manufacturing industrial parks, with a total land area of 175,000 ㎡ and a construction area of 204,900 ㎡. It has more than 2,200 employees, including 80 senior / intermediate engineers, 687 professional technical and R&D personnel, and a quality control team of over 200 people.
It is equipped with more than 1,500 sets of high‑end equipment, including CNC machining centers, CNC lathes, five‑axis linkage processing machines, fully automatic casting production lines, material chemical analysis laboratories, non‑destructive testing (NDT) centers, ultra‑high pressure test benches, cryogenic testing equipment, and intelligent torque monitoring systems.
The group has a large‑scale manufacturing capacity of 100,000 sets of medium & high pressure valves, 20,000 sets of special valves, and 50,000 pieces of flanges & pipe fittings per year. It is one of the few large groups in China that can provide a full range of products including general valves, high‑pressure special valves, intelligent control valves, anti‑corrosion PTFE lined valves, marine valves, and ultra‑low temperature valves

The company offers more than 200 product series and over 12,000 specifications, fully covering all industrial fluid control scenarios. Its core categories include:
General Standard Valves
Gate valves, globe valves, check valves, ball valves, butterfly valves (GB, API/ANSI, DIN, JIS, BS, GOST)
High-Temperature High-Pressure Power Station Valves
Supercritical power station valves, forged steel high-pressure valves, steam traps, pressure reducing & desuperheating stations (suitable for 600℃ / 32MPa thermal power and nuclear power conditions)
Special Anti-Corrosion Valves
PTFE (F4/F46) lined valves, all-plastic valves, Hastelloy / Titanium / Zirconium alloy special valves (for strong acid, alkali and highly corrosive environments)
Natural Gas / Pipeline Valves
Fully welded ball valves, buried ball valves, emergency shut-off valves (Class 600–Class 1500, NACE MR0175 sour service)
Intelligent Control Valves
Electric / pneumatic / hydraulic control valves, on-off valves, smart positioner valve assemblies, variable frequency control valves (Industry 4.0 automation)
Marine & Offshore Valves
ABS / BV / DNV / CCS certified gate, globe, check, ball valves and sea water dedicated valves
Ultra-Low Temperature / Ultra-High Pressure Valves
-196℃ LNG cryogenic valves, 80MPa ultra-high pressure forged & welded integrated valves (for petroleum refining and deep-sea applications)
Other Special Valves
Vacuum valves, hydraulic control valves, ammonia valves, instrument valves, needle valves, high-pressure pipe fittings and flanges.
Key Specifications
Size: DN6–DN4000
Pressure: 0.1MPa–42MPa (Class 150–Class 4500)
Temperature: -196℃–730℃
Materials: WCB, WC6, CF8M, duplex steel, Monel, Inconel, Ti / Ni / Zr alloys and more.
We provide 100% custom non-standard special valves. A number of technologies have broken foreign monopolies and filled domestic gaps.
The group has established a full-life cycle quality management system and obtained ISO 9001, ISO 14001, ISO 45001 certifications. It holds Special Equipment Manufacturing License (TS A1, highest level), API 6D/6A/607, CE/PED, ABS, BV, DNV, GL, CCS, LR and 41 international authoritative certifications in total. It is one of the most qualified enterprises in China for marine valves, high-pressure special valves and natural gas valves.
The group has been granted 99 national patents (21 invention patents, 78 utility model patents). It owns a provincial enterprise research institute and a high-tech R&D center, has led or participated in formulating 5 national/industrial standards, and undertaken many national-level scientific and technological projects. Its core technologies including ultra-high pressure sealing, intelligent control, special alloy welding, corrosion and wear resistance have reached international advanced level