As a professional manufacturer of various types of pipe fittings for pressure vessels and industrial pipelines, ShangHai Canghai High-medium Pressure Pipe Fittings Manufacture Co., Ltd is the only producer owning a license for special pressure pipeline manufacture and a registered brand in Shanghai.

We have served plenty of industries in China for the relevant pipeline constructions and Our fittings are widely used for a variety of applications such as oil, chemical, power, refinery, papermaking, shipbuilding, mechanical manufacture, etc. Meanwhile, USA, JAPAN, GERMANY, NETHERLANDS and INDIA are among the export destinations. Fittings (SW, BW and Threaded) such as elbow, reducer, tee, cross, stub end, cap, forged flange and high pressure flange as per GB, JB, HG, SH, SY, ASME, ANSI, JIS, DIN and BS feature the total production line. Additionally, fittings customized based on buyer’s drawings are also available. The regular material grades span as follows: 20#,A3,20G,16Mn,12Cr1MoV,15CrMo,1Cr5Mo,321,304,304L,316,316L,310S;A234 WPB-WPC-WP5-WP9-WP11-WP12,etc

As one of the fittings manufacturers specially recommended by China Oil &Gas Group to end users of giant projects, we have been enjoying excellent reputation in fittings industry. What’s more, our fittings production is guaranteed with the supervision of Shanghai Special Inspection Center. Some of the reference projects and clients are as follows:

Huaiyin Power plant (Huaneng Group)(2*300MW)
Xinhai Power plant (Lianyungang city) (2*300MW)
Junggar Power plant (2*300MW)
Thermal Power No 2 (Changchun) (2*200MW)
Tongliao Power plant (1*600MW)
Shuangyashan Power Plant (2*600MW)
Chaohu Power plant (Huaneng Group)(2*600MW)
Tieling Power plant (Huadian Corporation)(2*600MW)
Qinbei Power plant (Huaneng Group)(2*600MW)
Yuanbaoshan Power Plant (1*600MW)
Baishan Thermal Power (2*300MW)
Hongjun Aluminium and Power (2*135MW)
Shenhua Group
Jinhua Chemical Group
Wuhai Chemical
Tianjin Steel Group
Benxi Steel Group
Handan Steel Group
Datong City Water Supply Co
Yangquan Coal and Mining

Technology: We produce high quality fittings with the adoption of the most advanced technologies in the world now!

Inspection: With a complete set of inspection facilities to execute chemical analysis, mechanical inspection, NDE (including U T, MPI,X-ray), and Hydrostatic testing, etc, we can guarantee the quality as per clients’ requirements!

Quality Management: With the thorough implementation of such quality assurance systems as ISO 9001 and TS, we have been carrying out design, research and production in a proper way.

Re-inspection of incoming raw materials: In parallel with the review of raw materials certificate issued by supplier, we execute chemical and mechanical inspections for quality verification.

Visual inspection for semi-finished products:
Appearance or surface of fittings in each procedure shall be inspected. In case of any deformation or damage found on a certain item, it shall be rejected.

Dimensional inspection: After verification of material grade, raw materials shall be subjected to dimensional inspection as per the relevant specification.

Traceability: From semi-finished products to finished products, good traceability shall be kept.

Identification: Color coding shall be applicable to denote different material grades

Random check for semi-finished products: For each procedure, one random check for semi-finished products shall be available

NDE: MPI shall be applicable to each pc of elbows, reducers, and seamless tees made by cold forming method. 100% RT shall be done on weld seam of welded fittings. Other NDE tests shall be as per clients’ demand and all NDE tests shall only be executed after heat treatment.

Visual inspection or finished products: each pc of finished fittings shall be subjected to visual inspection as per the relevant specifications.

Size & Angle: Sizes and angles for each pc shall be checked as per relevant tolerance ranges

Material grade verification: Good traceability and color coding shall be made full use of in this regard.

Markings: Correct markings shall be made on finished fittings by stamping or electroetching.

MTC: Proper MTC shall be issued to match each pc of finished products and all relevant items to prove the quality shall be available on this certificate.

In summary, the brand of Canghai equals perfect products and reliable quality, which will promote your projects to further success!