seamless 2PE steel pipe external coating

seamless 2PE steel pipe external coating

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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: Can steel pipes be used for underground oil pipelines?: Indeed, underground oil pipelines can utilize steel pipes. The construction of underground oil pipelines heavily relies on steel pipes owing to their robustness, longevity, and resistance to corrosion. They possess the capability to endure the immense pressure and weight exerted by the oil being transported, along with external forces like soil displacement or seismic events. Moreover, steel pipes can be fortified with coatings or linings such as epoxy or polyethylene, enhancing their resistance to corrosion and extending their lifespan. In conclusion, steel pipes emerge as a dependable and extensively employed option for underground oil pipelines.

Q: Does the seamless steel pipe need rust removal?: Spray (throw) shoot derusting by the high-power motor to drive the spray shot (impeller) blade rotating speed, the steel grit, steel shot, iron wire, minerals and other abrasive jet for 20# seamless steel tube surface under the action of centrifugal force (left) radiation treatment, not only can completely remove the dirt and rust, oxide, and the role of 20# seamless steel in abrasive blast and friction force, can achieve the required uniform roughness.Not only can the physical adsorption effect on the surface of the pipe be increased, but also the mechanical adhesion of the anticorrosive layer to the pipe surface can be enhanced. Therefore, spraying (throwing) shot derusting is an ideal method of rust prevention for pipeline corrosion protection. Generally speaking, shot peening (sand) derusting is mainly used in the inner surface treatment of tubes, shot blasting (sand) derusting is mainly used for the outer surface treatment of tubes.

Q: 304 stainless steel tube with the diameter of 25*2-3 is what mean: This is according to the "water drawing standards" (GBT50106-2001) in 2.4.2-2 seamless steel pipe, welded steel pipe (straight or spiral seam), brass, stainless steel pipe, pipe diameter should be D diameter * thickness representation (such as D108 * 4 and D159 * 4.5); and the provisions of the habit of acting D with seamless pipe diameter.

Q: How are steel pipes inspected for defects?: Steel pipes are typically inspected for defects using various non-destructive testing methods such as ultrasonic testing, magnetic particle inspection, and visual inspection. These techniques help identify any cracks, corrosion, or other defects in the pipes, ensuring their structural integrity and quality.

Q: How are steel pipes used in wastewater treatment plants?: Steel pipes are commonly used in wastewater treatment plants for various purposes such as conveying wastewater, transporting chemicals, and managing water flow. They are used to transport wastewater from different treatment stages, ensuring efficient movement within the plant. Additionally, steel pipes are used to transport chemicals, such as disinfectants or coagulants, which are necessary for treating the wastewater. They also play a crucial role in managing water flow, helping to control the movement and distribution of wastewater throughout the treatment process. Overall, steel pipes are essential components in wastewater treatment plants, facilitating the movement and treatment of wastewater efficiently.

Q: Can steel pipes be used for conveying hazardous chemicals?: Steel pipes can be used for conveying hazardous chemicals, as they are highly resistant to corrosion and can withstand high pressures. However, it is crucial to consider the compatibility of the chemicals with steel and ensure that appropriate safety measures and protective coatings are in place to prevent any potential leaks or reactions.

Q: Can steel pipes be bent?: Yes, steel pipes can be bent using specialized tools and techniques such as pipe bending machines or hydraulic benders.

Q: What is the difference between steel pipe and HDPE pipe?: Steel pipe and HDPE pipe are two different types of pipes that are used for various applications. The main difference between steel pipe and HDPE pipe lies in their composition and characteristics. Steel pipe, as the name suggests, is made of steel and is a strong and durable pipe material. It is commonly used in industrial applications and infrastructure projects where high strength and reliability are required. Steel pipes are known for their ability to withstand high pressure, temperature, and heavy loads. They are also resistant to corrosion, making them suitable for both above-ground and underground installations. On the other hand, HDPE (high-density polyethylene) pipe is made of a plastic polymer called polyethylene. HDPE pipes are lightweight, flexible, and easy to install, making them ideal for various applications such as water supply, drainage systems, and agricultural irrigation. They are resistant to chemicals, abrasion, and UV rays, making them suitable for both indoor and outdoor use. HDPE pipes are also known for their long service life and low maintenance requirements. In terms of cost, steel pipes are generally more expensive than HDPE pipes due to the raw material cost and manufacturing process involved. However, steel pipes are often chosen for their superior strength and durability, especially in applications where high pressure or extreme conditions are involved. HDPE pipes, on the other hand, offer a cost-effective solution for applications that do not require the same level of strength and durability as steel pipes. In summary, the main differences between steel pipe and HDPE pipe lie in their composition, strength, durability, and cost. Steel pipe is known for its strength and reliability, while HDPE pipe offers flexibility, ease of installation, and resistance to chemicals and UV rays. The choice between the two depends on the specific application and requirements of the project.

Q: Can steel pipes be used for underground fire hydrants?: No, steel pipes are not typically used for underground fire hydrants. Underground fire hydrants are usually constructed using ductile iron pipes as they provide greater strength, durability, and resistance to corrosion, ensuring reliable water supply during emergencies.

Q: What are the different standards and specifications for steel pipes?: There are several different standards and specifications for steel pipes, depending on their intended use and application. Some of the commonly used standards include ASTM A53, ASTM A106, ASTM A333, and API 5L. These standards define various aspects such as the chemical composition, mechanical properties, dimensions, and testing requirements for steel pipes. Additionally, specific industries may have their own specifications, such as ASME B36.10 for seamless and welded steel pipes used in piping systems.

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