Lianggong Valve Group Co., Ltd.

No.32,GangQiang Road,YongXing Street,LongWan District
Wenzhou,  Zhejiang  325024

  • Booth: 6361


LIANGGONG VALVE is China Top 5 factory with good quality and competitive price.LIANGGONG have three main factorys. Main products is GGC,ball valvebutterfly valvesafety valve ,special valves ,flange and fittings.Lianggong have API600,API602,API609,API6D CE ISO certificates

 Press Releases

  • China ▪ Lianggong Valve Group Co., Ltd. was established in October 1989 and registered as No.010746 in 1990. It is a joint-stock company engaged in product design and R & D, mold making, casting and forging production, machining and assembly to performance testing And test Almighty Group, marketing and service as one of the non-regional joint-stock group company, under the jurisdiction of the top ten subsidiaries, namely:Lianggong Co., Ltd. of Lishui Factory, Lianggong valve Group Co., Ltd. Zhejiang strong one, good valve Group Zhejiang Industry Flange Co., Ltd., good valve Group Safety Valve Co., Ltd., Lianggong Intelligent Control Technology Co., Ltd., International Trade Import and Export Co., Ltd. Liang, Zhejiang Liang Special Valve Co., Ltd., Wenzhou Valve Import and Export Co., Ltd., Wenzhou good big control valve Co., Ltd., Longquan casting valve Co., Ltd. ,. Group headquarters is located in Wenzhou City, Zhejiang Province Airport Hong Kong Road 32, near the Wenzhou International Airport, the railway station, Longwan International Container Terminal, geographical location and transport conditions. The company occupies a total area of 199800 square meters, of which plant construction area of 129500 square meters, a registered capital of 258000000 yuan. The company's existing staff of more than 1,000 people, 60 were in engineering and technical personnel, of whom eight were senior engineers, 39 engineers, 13 assistant technicians and technicians; full-time service staff of 80 people, including 32 engineers, 12 assistant engineers, 36 technicians The company has excellent processing and manufacturing equipment, including machining centers, CNC lathes, CNC milling machines, CNC drilling machines, large-scale precision vertical lathe and boring machine, plasma spray welding equipment, supersonic spraying lines, automated spraying lines, other vehicles, milling, boring , Drilling, grinding and other machining and special equipment more than 400 Taiwan / sets, the annual production capacity reached 15 million tons.
    The company has established a strict and perfect quality management and quality assurance system, and continued to improve and improve. It has successively obtained the production license TS (A1) of the People's Republic of China, the ISO9001: 2008 quality management system certification and the ISO14001: 2004 environmental management system certification , GB / T28001-2011 occupational health and safety management system certification, fire CCC certification, the EU PED / 97/23 CE certification; has made Sinopec A network of qualified members, a qualified supplier of PetroChina, a qualified supplier of CNOOC; a qualified supplier of CNOOC Gas Group, CNGC Gas, Hong Kong and China Gas, Beijing Gas, Odd Gas, Kunlun Gas and CR Gas; and China China National Nuclear Corporation, China Huaneng Group, China Huadian Corporation, China Datang Corporation, China Power Investment qualified suppliers; China National Nuclear Corporation, Shenhua Group, China National Chemical Corporation qualified suppliers; China Petroleum and Petrochemical Equipment Member, the Chinese Ministry of Chemical Industry sentinel providers , COFCO qualified suppliers, recommended construction projects Member, China City Gas Association, China Construction Metal Structure Association and other qualifications; awarded was named national high-tech enterprise, AAA contract and trustworthy units, bank credit AAA-level enterprises, Lishui Valve Association unit and many other honors.
    Company product specifications complete, novel structure, technology skills, quality and reliable. Leading products include national standard, American Standard, British standard, German standard, Japanese standard and other common valves (gate valve, check valve, ultra-supercritical power station valve, gas valve, ball valve, globe valve, butterfly valve, throttle valve, diaphragm valve , Regulating valve, safety valve, pressure reducing valve, steam trap, plug valve, high temperature and pressure double self-sealing gate valve, power plant desulfurization valve, temperature and pressure reducing device, aluminum special valve, fixed ball valve, Hydraulic butterfly valve, 1200 ° ultra-high temperature butterfly valve, hydraulic control valve, regulating valve, flat valve, electric drive, etc.) and ultra-high temperature and pressure, cryogenic cryogenic temperature, Multiple specifications. The material of the products is mainly selected from the following materials: nodular graphite, carbon steel, low alloy steel, duplex steel, stainless steel, chrome molybdenum steel, special alloy, etc. (QT450, WCB, LCB, WC6, WC9, ZG1Cr5Mo, ZG15Cr1Mo1V, CF8, CF8M, CF3, CF3M, Nominal diameter from DN10-5000mm and 1/2 "~ 80"; working pressure from the 0.25 ~ 80.0MPa and 150Lb ~ 4500 Lb; working temperature from -196 ℃ ~ 1350 ℃. It is widely used in industries such as power station, nuclear power, petroleum, chemical industry, natural gas, military industry, municipal administration, metallurgy, construction, pharmacy, paper making, coal mine, cement, sewage disposal, environmental protection, energy saving and other industries with reliable product quality and stable performance.
    The company has advanced testing, testing, testing equipment. Established a complete physical and chemical properties and non-destructive testing laboratory, the existing automatic direct reading spectrometer, spectrum alloy analyzer, high-speed pilot infrared carbon and sulfur instrument, hydraulic universal material testing machine, pendulum impact testing machine, tensile testing machine , Rockwell Hardness Tester, Brinell hardness tester, portable Leeb hardness tester, ultrasonic thickness gauge, coating thickness gauge, ultrasonic flaw detector, magnetic flaw detector, crystal phase analyzer, X-ray flaw detector, Machine, CMM and other testing equipment. Established an advanced pressure test center, with intelligent valve torque, life test device, hydraulic valve pressure test device, valve flow test room, painting equipment, environmental protection, physical and chemical laboratories, fluid dynamic anti-fidelity laboratory, cryogenic laboratory, Ultra-high temperature and pressure testing room and so on.
    Product research is the vitality of the company. The company has established valve product design center, R & D center, optimization center and dynamic analog anti-fake design system based on design software such as Auto CAD, SolidWorks, Pro / E, UG and strong design team. Advanced finite element analysis system, perfect product structure optimization, to ensure the quality of product development and speed.LIANGGONG VALVE to a sound management system, strong technical force, rich experience and advanced technology reform, sophisticated equipment updates, improve the detection equipment and comprehensive after-sales service, won the majority of users trust and praise.
    Innovation is the prerequisite and foundation for the development of good works. Valve Group adhere to the technological innovation as the core, with the top international valve companies to exchange and cooperation, from improving manufacturing technology to start, aimed at the international advanced level, has absorbed the world-renowned CCI, FISHER, DRESSER, MASONEILAN, HOPKINSONONS, BAILEY, etc. Company's latest technology, has introduced a new structure and new technology of high-quality valve products.
    Liang Gong Group will continue to follow the "perfect system, continuous improvement, to ensure quality, delivery on time, passion, customer satisfaction," the quality policy of "quality of survival, efficiency and development, in good faith to customers" corporate purposes ,LIANGGONG VALVE promise: We will be first-class quality, reasonable price, complete varieties and fast delivery to provide customers with quality service. Looking to the future, we insist on the principle of meeting the customers' needs, rejuvenating the equipment manufacturing industry, building a well-known brand as the goal, making persistent efforts and pioneering and innovating. With the strong support from leaders, experts and customers at all levels, Efforts, Lianggong Valve Group will usher in a more brilliant tomorrow, is willing to work with elites from all walks of life to create brilliant.



  • Design and Manufacture:API6D,ASME B16.34(BS5351),API608,MSS-SP-72

    Face to Face Dimension:ASME B16.10,API6D

    Flange Connection:ASME B16.5&ASME B16.47

    BW Connection Dimension:ASME B16.25

    Test and Inspection:API598,API6D

    Fire Safe Design:API607/6FA

    Anti-static Design&Anti Blow-out Stem

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