welded 2PE steel pipe external coating

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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: How are steel pipes used in the manufacturing of wastewater treatment systems?: Steel pipes are commonly used in the manufacturing of wastewater treatment systems as they provide a durable and corrosion-resistant material for transporting and distributing water and chemicals within the system. They are used for various purposes such as conveying wastewater, carrying treated water to different stages of the treatment process, and transferring chemicals for disinfection or filtration. Additionally, steel pipes are often used for constructing the framework and support structures of wastewater treatment systems due to their strength and versatility.

Q: How do steel pipes compare to other materials, such as PVC or copper?: Steel pipes have several advantages over other materials such as PVC or copper. Firstly, steel pipes are incredibly durable and strong, making them suitable for heavy-duty applications and high-pressure environments. Additionally, steel pipes have a longer lifespan compared to PVC or copper, as they are less prone to cracking, corrosion, or degradation. Steel pipes also provide better fire resistance and are more resistant to extreme temperatures. However, steel pipes can be more expensive and require professional installation due to their weight and rigidity. PVC pipes, on the other hand, are lightweight, affordable, and easy to install, but they may not be as durable or suitable for certain applications. Copper pipes offer excellent corrosion resistance and are commonly used for water supply systems, but they can be more expensive and require skilled labor to install. Ultimately, the choice between steel, PVC, or copper pipes depends on the specific requirements of the project and the desired balance of cost, durability, and performance.

Q: What are the different types of steel pipe bends for pipeline routing?: There are several different types of steel pipe bends commonly used for pipeline routing. These include 90-degree bends, 45-degree bends, and custom bends with specific angles as per the pipeline design requirements. Each type of bend serves a specific purpose in redirecting the flow of fluids or gases through the pipeline while maintaining structural integrity.

Q: How are steel pipes classified according to their wall thickness?: Steel pipes are classified according to their wall thickness into various categories such as standard, extra strong, and double extra strong.

Q: How are steel pipes used in nuclear power plants?: Steel pipes are extensively used in nuclear power plants for various purposes. They are primarily used for the transportation of coolant, such as water or gas, which helps in removing heat from the reactor core. Steel pipes are also used to convey steam generated by the reactor to the turbine, where it is used to generate electricity. Additionally, steel pipes are utilized for the transportation of various fluids, such as lubricants and chemicals, for different processes within the plant. The durability, strength, and resistance to high temperatures and pressure make steel pipes an ideal choice for these critical applications in nuclear power plants.

Q: What is the difference between steel pipe and HDPE pipe?: Steel pipe and HDPE pipe have different compositions and characteristics, making them suitable for various applications. Steel pipe, made of steel, is a robust and durable material commonly used in industrial and infrastructure projects that require strength and reliability. It can withstand high pressure, temperature, and heavy loads, and is resistant to corrosion for both above-ground and underground installations. On the other hand, HDPE pipe is composed of high-density polyethylene, a plastic polymer. These pipes are lightweight, flexible, and easy to install, making them ideal for water supply, drainage systems, and agricultural irrigation. They are resistant to chemicals, abrasion, and UV rays, making them suitable for indoor and outdoor use. HDPE pipes also have a long service life and require low maintenance. In terms of cost, steel pipes are generally more expensive due to the raw materials and manufacturing process involved. However, they are chosen for their superior strength and durability in applications with high pressure or extreme conditions. HDPE pipes offer a cost-effective solution for applications that don't require the same level of strength and durability. In summary, the 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, easy installation, and resistance to chemicals and UV rays. The choice between the two depends on the specific application and project requirements.

Q: Are steel pipes suitable for use in acidic environments?: Steel pipes may not be suitable for use in acidic environments because they can corrode and degrade when exposed to acids, leading to potential leaks and structural issues.

Q: What are the different types of steel pipe supports for offshore platforms?: There are several different types of steel pipe supports used for offshore platforms, including pipe racks, pipe clamps, pipe hangers, and pipe saddles. Pipe racks are used to support multiple pipes and provide a structure for them to rest on. Pipe clamps are used to secure individual pipes to structures or walls. Pipe hangers are used to suspend pipes from overhead structures, while pipe saddles are used to support pipes on horizontal surfaces. These different types of supports are designed to ensure the stability and integrity of the pipes in offshore environments.

Q: How are steel pipes used in the manufacturing of geothermal systems?: Steel pipes are used in the manufacturing of geothermal systems primarily for their durability and heat resistance. These pipes are used to transport geothermal fluids, such as water or steam, from the underground reservoir to the surface, where they can be utilized for heating or electricity generation. The high strength and corrosion resistance of steel pipes make them ideal for withstanding the harsh conditions and high temperatures encountered in geothermal applications. Additionally, steel pipes can be easily welded and connected, allowing for efficient installation and maintenance of geothermal systems.

Q: What are the different types of coatings used on steel pipes?: Steel pipes can be coated with various types of coatings to increase their durability and protect them from corrosion. Some commonly used coatings are: 1. Fusion-Bonded Epoxy (FBE) Coating: The steel pipe is heated and the epoxy powder is melted and fused to the surface. FBE coatings offer excellent corrosion resistance and are widely used in water pipelines and the oil and gas industry. 2. Polyethylene (PE) Coating: Similar to FBE coatings, PE coatings are applied to steel pipes. They provide a protective layer that is resistant to moisture, chemicals, and abrasion. PE coatings are commonly used in gas pipelines and underground water pipelines. 3. Polypropylene (PP) Coating: PP coatings have similar application processes and protective qualities as PE coatings. However, they offer enhanced resistance to higher temperatures, making them suitable for chemical processing plants and refineries. 4. Concrete Weight Coating (CWC): This special coating involves applying a layer of concrete to the steel pipe. It adds weight to the pipe, making it more stable and resistant to buoyancy in underwater or submerged applications. 5. Zinc Coating: Zinc coatings, such as hot-dip galvanizing, involve immersing the steel pipe in molten zinc. This creates a protective layer of zinc on the pipe's surface, offering excellent corrosion resistance. Zinc coatings are commonly used in outdoor applications, such as fencing, guardrails, and water pipelines. 6. Bituminous Coating: Bituminous coatings involve applying a layer of bitumen or asphalt to the steel pipe. They provide excellent resistance to water and chemicals, making them suitable for underground pipelines and structures. These examples illustrate the variety of coatings available for steel pipes. The choice of coating depends on factors like the intended application, environmental conditions, and desired level of corrosion resistance.

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