
Offers a diverse range of high-performance valves
Our main products & services include Ball valve, Gate Globe, Check valve, Butterfly Valve, Plug valve, Electric Actuator, Pneumatic Actuator and Gearbox, which are widely used in Gas& Oil, Power Generation, Chemical, Refining, Marine and Pipeline Transmission Industries Etc.
Leading engineered valve company with over 40 years of expertise
SUNGO Valves was founded in 1980 and is headquartered in Wenzhou, China. We specialize in Engineered Valves with over 40 years of experience and a team of highly skilled professionals, we have become a leading company in the Engineered Valves in Asia.
Established long-term partnerships with renowned companies, both locally and globally.
History
- 1980-1999 Founded and established its reputation in valve manufacturing.
- 2001-2006
- Company rebranded as Zhejiang Shangzheng Valves Co., Ltd.
- Became a supplier for major industries like Chinese Petroleum & National Electric Power.
- Expanded operations with Shanghai Jiading Industrial District Factory.
- 2008-2013
- Became the biggest valve supplier for the Beijing Olympic Games.
- Recognized as a High-Tech Company in China.
- Expanded its manufacturing facilities to 35,000 sqm in Lishui.
- 2015-2023
- Increased its registered capital to CNY 201 million.
- Expanded international partnerships, including a deal with Thai PNB International Company Limited for Southeast Asia.
- Upgraded to new versions of key certifications like ISO9001, ISO14001, and API-6D.
Commitment to Quality & Customer Satisfaction.
We have a strict quality control system in place to ensure that our products meet the highest standards. We also have a professional and dedicated customer service team to provide timely and effective support to our customers.
Advanced Manufacturing
The latest computer technology is also widely applied in SUNGO for valve manufacturing, this includes many numeric control machines (Machining center, CNC horizontal and vertical lathe, CNC drilling machine) and ERR management system which significantly improve our machining quality and process control. SUNGO also employ several conventional lathes with capacity up to machine 52’’ gate valve. SUNGO manufacturing philosophy is to ensure stable quality and just in time delivery.

Comprehensive Quality Control System
SUNGO has developed extensive inspection and testing capabilities to maintain superior product quality.
Our testing include:
- Radiographic Testing (Y Radial Test)
- Ultrasonic Testing
- Dye Penetration & Magnetic Testing
- Positive Material Identification (PMI)
- Impact, Tensile & Hardness Testing
- Fire-Safe & Cryogenic Testing
- Vacuum & Low Fugitive Emission Testing
- High-Pressure Gas & High-Temperature Testing
- Hydrostatic Testing



PRODUCTS
✪ BALL VALVES
- Floating Ball Valve
- Trunnion Ball Valve
- Metal To Metal Sealed Ball Valve
- Metal To Metal Sealed Floating Ball Valve
- Metal To Metal Sealed Trunnion Ball Valve
- One Piece Body Ball Valve
- Three Way Ball Valve
- Female Threaded Ball Valve
- Top Entry Ball Valve
- Full Welded Ball Valve
- Operation Torque Of Ball Valve
- Flow Coefficient Cv