seamless and welded 2PE steel pipe external coating

seamless and welded 2PE steel pipe external coating

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Specifications

water pipeline inner-layer tape
1 Butyl rubber as adhesive
2. SGS test report and DVGW certificate
3. corrosion protection

water pipeline inner-layer tape

State-of-the-Art Pipeline Protection for All Climates & Environments

System description:

WATER PIPELINE Inner -layer tape also be called pipe wrap anti-corrosion tape, polyethylene wrap tape.

water pipeline Inner-layer tapeT100 is engineered to assure a high bond to the primed pipe surface with excellent conformability characteristics, aggressive adhesive for corrosion protection and repair of main line coatings.

Inner-layer tapeT100 series is cold applied tape coating system for corrosion protection of Oil, Gas, Petrochemical, and Waste Waterburied pipeline, pipe can be buried, also can be underground ,overhead ,onshore and offshore .

Structure of water pipeline inner wrap tape
The specification of the tape consists of two layers, adhesive layer and film backing
Adhesive: butyl rubber
Film backing: Special blend of stabilized polyethylene

Features & Benefits

Provides a permanent bond to the primed steel pipes surface and provides protection against chemical electrolytic corrosion for underground pipelines.
long term corrosion protection
Worldwide reference lists. Established in-ground history
High chemical resistance under service temperature.
Outstanding electric property and permanent adhesion.
Cold applied, No release liner. Makes installation fast and easy.
Complies with EN-DIN 30672 and AWWAC-214 international standards and also ASTM standards.
Be used for water pipeline corrosion protection

System Properties

Type	T138	T 150		T165	T180	T 250	T265	T280
Thickness	15mil 0.38mm	20mil 0.508mm		25mil 0.635mm	30mil 0.762mm	20mil 0.508mm	25mil 0.635mm	30mil 0.762mm
Backing	9mil 0.229mm	9mil 0.241mm		10mil 0.25mm	10mil 0.25mm	15mil 0.38mm	20mil 0.508mm	25mil 0635mm
Adhesive	6mil 0.152mm	11mil 0.279mm		15mil 0.381mm	20mil 0.508mm	5mil 0.127mm	5mil 0.127mm	5mil 0.127mm
When used for ductile iron pipes inner layer 980-20 or 980-25 and outer layer 955-20 or 955-25 are recommended.
Elongation	³300%					³400%
Tensile Strength	55 N/cm					70 N/cm
Color	Black					White
Peel Adhesion to Primed Pipe			33 N/cm
Dielectric Strength			30 KV
Dielectric Breakdown			26 KV/mm
Cathodic Disbandment			0.24 in radius 6.4 mm
Water Vapor Transmission Rate			< 0.1%
Volume Resistivity			2.5 x 10¹⁵ ohm.cm
Impact resistance			5.5Nm
Penetration Resistance			<15%
Performance			AWWA C-209,ASTM D 1000,EN 12068

Order information

Length	100ft(30 M),200ft(60 M),400ft(120 M),800ft(240 M)
Width	2’’(50mm),4’’(100mm),6’’(150mm),17’(450mm),32’’(800mm)

Q: What are the specific differences between flexible pipes and rigid pipes?: Watch from outside:The rigid waterproof sleeve is made up of steel bushing and wing ring, and the structure is simple;The flexible waterproof sleeve mainly consists of flange sleeve, sealing ring, flange, pressure plate, wing ring, bolt and nut. The structure is complicated.

Q: How are steel pipes used in water transportation?: Steel pipes are commonly used in water transportation as they are durable, strong, and resistant to corrosion. These pipes are used to transport water from sources such as reservoirs, treatment plants, or wells to different areas for domestic, industrial, or agricultural purposes. Steel pipes ensure the safe and efficient flow of water, preventing leakage and contamination, and are often buried underground or used in above-ground pipelines for long-distance water transportation.

Q: How to make the magnetic steel, can be like a magnet?: Magnetization. Winding the insulated wire on the object, passing in the direct current, and taking it down after a period of time.

Q: What is the single length of galvanized steel pipe?: Galvanized steel pipe is divided into cold galvanized steel pipe, hot galvanized steel pipe, cold galvanized steel pipe has been banned, and the latter is also advocated by the state for the moment, can be used. In 60s and 70s, developed countries began to develop new types of pipes, and galvanized pipes were banned.

Q: How can two smooth steel pipes be joined? The size of the two pipe is different (except for welding): Rectangular fastener: used for the connection of two vertical intersecting steel tubes. It relies on the frictional force between the fastener and the steel tube to carry the load.Swivel fastener: used for connecting two steel tubes intersecting at any angle

Q: How are steel pipes measured and sized?: Steel pipes are measured and sized based on their outer diameter (OD) and wall thickness. The OD is the measurement of the outer circumference of the pipe, while the wall thickness refers to the thickness of the pipe's walls. These two measurements are essential in determining the size of steel pipes, which are commonly categorized using nominal pipe size (NPS) or nominal diameter (DN). NPS is a North American standard, while DN is an international standard. The sizing process ensures uniformity and facilitates compatibility with fittings and other pipeline components.

Q: What is the difference between hot-dipped galvanized and electro-galvanized steel pipes?: Both hot-dipped galvanized and electro-galvanized steel pipes undergo a galvanization process to protect them from corrosion. However, there are distinct differences between the two methods. Hot-dipped galvanized steel pipes are immersed in molten zinc, resulting in a thick zinc coating on the steel's surface. This creates a durable and long-lasting barrier against corrosion. The thickness of the zinc coating varies, but it is generally thicker than that of electro-galvanized steel pipes. In contrast, electro-galvanized steel pipes are coated with a thin layer of zinc through an electroplating process. This involves passing an electric current through the pipes while they are submerged in a zinc solution. The zinc particles are then deposited onto the steel's surface, creating a thin and uniform protective layer. One key difference is the thickness of the zinc coating. Hot-dipped galvanized steel pipes have a thicker and more robust coating, making them suitable for harsh environments or exposure to corrosive materials. Another distinction is the appearance of the pipes. Hot-dipped galvanized steel pipes typically have a dull grayish finish, while electro-galvanized steel pipes have a smoother and more polished look. In terms of cost, electro-galvanized steel pipes are generally more economical because the electroplating process requires less labor and zinc. Ultimately, the choice between hot-dipped galvanized and electro-galvanized steel pipes depends on the specific application and desired level of corrosion resistance. Hot-dipped galvanized steel pipes are typically used in demanding environments, while electro-galvanized steel pipes are suitable for less corrosive applications where cost-efficiency is important.

Q: How to make the steel pipe spray paint is not easy to fall off?: First you will rust steel, to clean, good quality alkyd rustproof paint, completely dry after brushing paint, color to see his kind of love.

Q: Can steel pipes be used for the construction of tunnels?: Yes, steel pipes can be used for the construction of tunnels. Steel pipes are often used as support structures in tunnel construction due to their strength, durability, and ability to withstand high pressures. They can be used for various purposes such as drainage, ventilation, or as part of the tunnel structure itself. Additionally, steel pipes can be easily manufactured, transported, and installed, making them a popular choice in tunnel construction projects.

Q: How are steel pipes coated for underground applications?: Steel pipes are typically coated for underground applications using a process known as external coating or corrosion protection. This involves applying a layer of protective material, such as epoxy or polyethylene, onto the surface of the steel pipe. The coating acts as a barrier, preventing the pipe from coming into contact with moisture, soil, and other corrosive elements that could lead to degradation over time. Additionally, before applying the coating, the steel pipes are often cleaned and prepared through processes like sandblasting or shot blasting to remove any impurities and create a smooth surface for better adhesion of the protective coating.

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