Superior Steel Overseas

3LPE Coated Pipes consist of 3 layers for pipeline coating:

Layer 1:

Consists of Fusion Bonded Epoxy. This later provides protection against corrosion and is fusion bonded with the blasted steel surface.
Layer 2:
Is a copolymer adhesive which has excellent chemical bonding to the inner layer and the top layer of polyethylene.
Layer 3:
Is the layer of polyethylene used for protection against any physical damage of the pipes.
The 3 layer polyethylene coated pipes are the preferred choice for transmission of oil and gas around the world. It can withstand varied temperatures and environments ranging from desert drylands to deep underwater regions. 3LPE coated steel pipes are used for transportation of drinking water, oil and gas and other fluids. The 3LPE coated pipes can be used in the high temperatures as high as 60o C to 80 oC.

Features of 3LPE coated pipes:

1. Excellent chemical and corrosion resistance preventing steel pipes from any damage.
2. Resistance to cathodic disbondment
3. The external layer of polyethylene prevents any physical damages to either the pipes or the fusion bonded epoxy during handling
4. The 3LPE coated pipes have high-performance characteristics and an extended life cycle

3LPE Coated Pipes Manufacturer in India:

Standards used in manufacturing 3LPE pipes are:

DIN 30670

CSA Z245.21

AS 4321

IS 3581

Fusion bonded epoxy (FBE) coated pipes are used for prevent steel pipes from corrosion and harmful chemicals. These are thin coatings of epoxy-resin powder materials formed in a film and applied on pipes by specialised coating facilities by electrostatic spraying. These FBE coated pipes can be used in temperatures up to 85oC in dry conditions.FBE Coating has been used as a standard in industries for protection against corrosion. FBE coatings have good handling characteristics; they are flexible and resistant to soil pressure. These are used in pipeline projects that have normal requirements and do not have harsh conditions.
A dual-layer of fusion bonded epoxy can also be used for coating of pipelines for use in harsher conditions to make it more abrasion resistant. The second layer is also made of the similar fusion bonded epoxy with both the layers being sprayed successively. Depending on the application, the dual-layer FBE can also come with an Abrasion-Resistant Overcoat (ARO), to reduce damage to pipes.

Features of Fusion Bonded Epoxy (FBE) coated pipes:
1. FBE coating is corrosion resistant and chemical resistant

2. It has high resistance to cathodic disbondment

3. FBE coating increases the life span of steel pipes providing a constant performance throughout its life span.

4. The FBE coating has high bond strength and bond firmly to mild steel pipe surface.

FBE Coated Pipes Manufacturer in India:

These pipes can be used for transmission of drinking water, oil and gas and other fluids in cost effective manner. We provide externally coated carbon steel pipes with single and dual layer FBE coating for applications in buried or submerged environments. Maharashtra seamless also produces other anti corrosion pipeline coatings such as 3LPE, 3LPP and internal epoxy coatings.

DIN 30670

CSA Z245.21

AS 4321

IS 3581

3LPP Coated Pipes consists of multilayer anti-corrosion coatings consisting of an inner layer of fusion bonded epoxy layer, the middle layer is an adhesive layer and an outer layer of polypropylene. The inner layer is used for protection against corrosion and chemical damage while the outer layer is used for protection against any physical damage in laying and transportation.The 3 layer polypropylene coated pipes are used in oil fields where the resources are drawn from deep reservoirs and at high temperatures (100oC to 140oC). It is highly abrasion resistant and is generally used where the chances of damage are high such as Rocky Mountains or for drilling operations.

Features of 3LPP coated pipes:

1. Excellent chemical and corrosion resistance preventing steel pipes from any damage.
2. Resistance to cathodic disbondment
3. The 3LPP coated pipes are highly abrasion resistant and can withstand high temperatures.
4. The 3LPP coated pipes have high performance characteristics and an extended life cycle.

We provide externally coated carbon steel pipes with 3LPP coating for applications in buried or submerged environments. Maharashtra seamless also produces other anti corrosion pipeline coatings such as 3LPE, FBE and internal epoxy coatings.

DIN 30670

CSA Z245.21

AS 4321

IS 3581

A spraying nozzle has been used to spray the liquid epoxy inside the pipe as per the required thickness. Before applying the epoxy paint, the internal surface of the pipe is cleaned. The typical coating thickness for gas pipelines varies between 60 to 100 μm and for water and other liquids, it varies between 200 to 500 μm.
SALIENT FEATURES OF INTERNAL EPOXY COATING:
Increase flow of gas/water by 20%Suitable for Service Temperature up to 80°CExcellent Corrosion ResistanceHigh Steel AdhesionLow mechanical & abrasion ResistanceHigh Impermeability for water / gasLow Electrical ResistanceEase of cleaning the pipeline and ease of water decrease line maintenance and upkeep costs

Pipeline coating is the most consistent and successful solution for protecting ERW/Seamless pipes from corrosion, from moisture, other harmful chemicals. Coated pipes are the most viable cost-effective products used for the transmission of oil, gas, water, and other fluids. The coating provides pipelines with a constant protective layer that shield the pipes from any damaging effects of corrosion.

Coated pipes offer high resistance to corrosion on pipes and provide many benefits such as:
1. Increased Flow Capacity – A coating on pipes helps provide a smoother surface thus improving gas and liquid flow within pipes.

2. Reduced Cost – The pipeline coating increases the pipes durability so they can be deployed with minimum maintenance cost even in the harshest environments.

3. Lower energy usage – Various studies have shown that pipelines that are internally coated use less energy for pumping and compression of products through pipes. This helps in increased saving over time.

4. Clean delivery of products – The inhibitors used for the protection products can also be minimised by the use of coated pipes for delivery of products.Thus, coating of pipelines can help you in reducing your maintenance cost and at the same time providing a corrosion free reliable protection.

Coated Pipe manufacturer in India:

We are the leading manufacturer of ERW/Seamless pipes in India providing high quality coated steel pipes for the transportation of oil, water or gas.

We have an excellent testing facility providing the following facilities:

• In-house facility for raw material as well as finished coating.
• All testing facility for external and internal coating as per various specifications.
• Surface profile detector with printing facility.
• Peel test assembly as per din 30670 method -II.
• Cathodic disbondment facility for 14 tests at a time.
• Differential scanning calorimetry from Metller for virgin & cured epoxy.

Feature of coated pipes manufactured by us:

1. Superb Corrosion Resistance – Our products show excellent resistance to any corrosive chemicals and ensure longer life even in harshest conditions.
2. Withstanding High Temperature differences – Our coated pipes show high capacity to withstand any environment with temperatures ranging from 110o C to -45o C
3. Electricity Resistant – External Pipeline Coating offers excellent resistance to electricity.
4. Pinhole free – Made from hot extrusion process the pipes are homogeneous and free from any pinholes
5. Impact resistant – The external coating on pipelines also protects it from any physical damage as well while storing or transportation.
6. Cathodic disbonding – Our products show excellent protection from catodic disbondement.
7. Bendability – Our pipes show excellent bendability (up to 3o ).
8. Easy Repair options – Any surface defects that may have occurred during laying or transportation can be repaired easily.