Cross-linked Wrap-around Heat Shrinkable wrap tape

General

Cross-linked Wrap-around Heat Shrinkable Sleeve on the weld joint shall be long enough for 24” OD pipe so as to overlap onto the mainline coating by a minimum on each side of the weld joint.

The width of Heat Shrinkable Sleeves shall be 450mm

The corrosion Coating is a wrap-around Heat Shrinkable Sleeve, black in color and shall be suitable for an operating temperature of 140ºF in wet conditions.

Sleeve coating

The inner surface of the sleeves shall be coated with a controlled thickness of an adhesive which in combination with the modified Epoxy primer, will bond to and seal to the steel pipe and common yard applied medium temperature yard coatings, such as epoxy.

Backing

The Sleeve and closure backings shall be fabricated from a thermally stabilized, extruded radiation cross-linked heat shrinkable polyethylene. The Backing of the sleeve and closure shall be homogeneous and free from flaws, defects, pinholes, bubbles, cracks and inclusions.

Primer

The primer shall be a solvent free, modified Epoxy type primer, which is applied to cleaned and dry steel surface. When the sleeve coating comes in contact with the liquid primer during installation, a strong bond shall be formed upon full curing time of the system.

Sleeve thickness

The Heat Shrinkable Sleeve shall provide mechanical protection to the epoxy layer and shall seal onto the epoxy layer and the adjacent line coating. It shall have the following minimum thickness:

Backing 0.97mm (after full free recovery)

Backing +adhesive 1.60mm as supplied

2.2mm fully recovered

CNPetro Hitech Co.,LTD is a well-known high-tech company mainly engaged in research, development, production, and sales of a complete set of pipeline anti-corrosion products and equipment, as well as anti-corrosion products for offshore pier piles, and providing related engineering construction and technical services. Its headquarters are located in Tianjin, China. The company has successively invested and established industrial companies such as CNPetro Haitai Technology Development Co., Ltd. and CNPetro Engineering Construction Co., Ltd. The company has a total investment of over 10 million yuan and a total of over 100 employees, including 5 senior engineers and 20 engineers. 60% of the employees have bachelor's or graduate degrees. The company has obtained 5 national registered trademark rights, 2 independent intellectual property patents, 5 patents are currently being applied for, and has passed the "Technology Enterprise" certification in Tianjin

Quality certification. CNPetro Hitech Co.,LTD has an internationally leading production center for pipeline anti-corrosion tape and marine anti-corrosion system products, covering an area of over 4000 square meters. Its main products include new high viscosity polyethylene anti-corrosion tape, polypropylene anti-corrosion tape, UV resistant linear anti-corrosion sealing tape, marine anti-corrosion tape, petrolatum based anti-corrosion tape for valve flanges and pipe fittings, and waterproof and anti-corrosion sealing system for tank edge plates Viscoelastic body products, marine armor anti-corrosion protection products for splash zones of steel piles and cement piles in seawater, and special anti-corrosion protection systems for special-shaped steel structures. The annual comprehensive production capacity has reached a production scale of 5 million square meters and 6000 tons.

CNPetro has a pioneering and enterprising technology and management team, with strong research and service capabilities, complete production and testing equipment, and a complete ISO9001 quality assurance system. The production equipment is excellent, and the product quality is excellent. CNPetro has many internationally leading core technologies. As a member unit of the China Petroleum Engineering Construction Association, the company has obtained the qualification certificate of "Qualified Supplier" issued by China Petroleum Technology Development Corporation, and has become a member unit of China Petroleum Energy No.1 Network. It is also a qualified supplier of anti-corrosion materials for Sinopec and CNOOC.

CNPetro excellent reputation and refined products are well-known to customers around the world. Its excellent products and perfect technical service network have earned China National Offshore Oil Corporation an excellent reputation and reputation both domestically and internationally. The technical experts of the company actively participated in two national industry standards issued and implemented by China National Petroleum Corporation and the Ministry of Construction: the People's Republic of China Petroleum and Natural Gas Industry Standard SY/T0414 "Technical Standard for Polyethylene Adhesive Tape Anticorrosion Coating of Steel Pipelines" and the People's Republic of China Engineering Construction Industry Standard CJJ95-2003 "Technical Specification for Corrosion Control of Urban Natural Gas Buried Steel Pipelines".

As a global leader and innovator in anti-corrosion tape technology, the new environmentally friendly anti-corrosion products produced by CNPetro have been certified by the Chinese Society for Corrosion and Protection, inspected by the Corrosion Testing Center of the China Petroleum Pipeline Science Research Institute, and inspected by the Quality Supervision and Inspection Center of the Anti Corrosion and Insulation Products of China National Petroleum Corporation (SY/T) and the American Association of Corrosion Engineers (NACE) The American National Standards Institute/American Institute of Hydraulic Engineering ANSIA AWWA, German DIN standards, Arab National Petroleum Corporation and other international standards have won the favor of domestic and foreign users. The products have been widely used in industries and fields such as petroleum, chemical, gas, shipbuilding, water supply and drainage, external anti-corrosion protection of thermal pipelines, sewage treatment, power and telecommunications, building waterproofing, highway and track construction, metallurgy, civil aviation, and marine terminal construction.

CNPetro has established a comprehensive technical service and warehousing distribution network. We have established offices and warehousing distribution centers in Zhejiang, Jiangsu, Shanghai, Guangdong, Guangxi, Gansu, Qinghai, Hubei, Hunan, Liaoning, Shaanxi, and Xinjiang, enabling us to wholeheartedly and timely serve our more than 5000 users. In many large-scale projects in China, such as China Petroleum Development, West East Gas Pipeline, and Sichuan East Gas Pipeline Shaanqi has played a significant role in projects such as the Beijing China Myanmar pipeline and Turkmenistan's oil and gas development. The products are also exported to the United States, Mexico, Japan, South Korea, Australia, Southeast Asia, Central and Western Asia, Africa, the Middle East, and other regions.

The company has now become a highly influential, powerful, technologically advanced, comprehensive supplier of various anti-corrosion tape products and an integrator of seawater pile anti-corrosion solutions both domestically and internationally, with the most complete service system.

CNPetrol, with its strong economic and technological strength, sincerely provides excellent corrosion control solutions to our customers!