Rubber lined Steel pipes ASTM A106 Grade B ASTM A53 Grade B API 5L grade B
We are professional manufacturer of Natural Rubber Lined Steel Pipes,Rubber lined Steel pipes ASTM A106 Grade B ASTM A53 Grade B API 5L grade B in China.
What is Rubber lining?
A rubber lining is a tough elastic polymeric material used to coat exterior surfaces or the interior of containers (e.g., tanks, pipes fitting and other vessels)
Rubber linings to used to protect vessels and equipment from corrosion and abrasion in the harshest environments
Natural rubber lining is a cost-effective option that’s used to prevent corrosion and abrasion in a variety of industries. It’s also used for chemical storage and other applications.
How Is Rubber Lining Applied?
Rubber liners are available for a variety of different types of equipment. For immovable objects, work can be applied to machinery, parts or equipment on site, but there are some restrictions on the type of project.
Autoclave machines can reduce the cost of rubber lining projects, providing a versatile and efficient solution for individual parts. Before inserting the liner, the steel pipe also needs to be inspected for any defects that could cause the rubber liner to bubble or allow air to interfere with the curing process.
Production Procedure of Rubber lined steel pipe
1. Material Preparation
- Steel Pipe Selection: Choose high-quality steel pipes (e.g., API 5L, ASTM A53 Gr.B) based on the application requirements.
- Rubber Material Selection: Select the appropriate rubber type (e.g., natural rubber, EPDM, butyl rubber) based on the intended use (e.g., corrosion resistance, abrasion resistance).
2. Surface Treatment of Steel Pipe
- Cleaning& Sandblasting: Remove dirt, oil, rust, and other contaminants from the inner surface of the steel pipe using methods like sandblasting or chemical cleaning.
3. Rubber Lining
- Rubber Sheet Preparation: Cut rubber sheets to the required size and thickness based on the pipe dimensions.
- Adhesive Application: Apply a bonding agent (adhesive) to the inner surface of the steel pipe and the rubber sheet to ensure strong adhesion.
- Lining Process: Place the rubber sheet inside the steel pipe and use a roller or press to ensure it adheres evenly without air bubbles or wrinkles.
4. Vulcanization
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- Pre-Heating: Heat the rubber-lined pipe to a specific temperature to activate the adhesive and improve bonding.
- Vulcanization: Place the pipe in a vulcanization chamber or autoclave to cure the rubber under controlled temperature and pressure. This process enhances the rubber’s durability and chemical resistance.
5. Inspection and Testing
- Visual Inspection: Check for defects such as bubbles, cracks, or uneven lining.
- Adhesion Test: Ensure the rubber lining is firmly bonded to the steel pipe.
- Thickness Measurement: Verify the rubber lining thickness meets the specified requirements.
6. Finishing
- Trimming: Remove any excess rubber from the pipe ends.
- End Preparation: Prepare the pipe ends for connection (e.g., beveling, threading, or flanging).
- Surface Coating: Apply an external protective coating (e.g., paint or epoxy) to prevent corrosion.
7. Packaging and Shipping
- Labeling: Mark the pipes with relevant information (e.g., size, material, and specifications).
- Packaging: Protect the pipes during transportation to prevent damage.
Application of the rubber lined steel pipes
Rubber-lined pipes are widely used in various industries due to their excellent corrosion resistance, abrasion resistance, and chemical stability. Below are the key applications of rubber-lined pipes:
1. Chemical Industry
- Acid and Alkali Transport: Used to transport corrosive chemicals such as sulfuric acid, hydrochloric acid, and caustic soda.
- Chemical Processing Equipment: Used in reactors, heat exchangers, and pipelines where resistance to aggressive chemicals is required.
2. Mining and Mineral Processing
- Slurry Transport: Ideal for transporting abrasive slurries containing minerals, ores, and tailings.
- Dewatering Systems: Used in pipelines for dewatering processes in mining operations.
3. Power Generation
- Flue Gas Desulfurization (FGD): Used in pipelines for transporting corrosive flue gases and slurries in FGD systems.
- Cooling Water Systems: Used in pipelines for cooling water circulation in power plants.
4. Water and Wastewater Treatment
- Sewage and Effluent Transport: Used in pipelines for transporting sewage, wastewater, and industrial effluents.
- Chemical Dosing Systems: Used in pipelines for dosing chemicals like chlorine and coagulants.
5. Oil and Gas Industry
- Offshore Pipelines: Used in offshore platforms for transporting corrosive fluids and gases.
- Refinery Pipelines: Used in refineries for transporting corrosive hydrocarbons and chemicals.
6. Marine Industry
- Ballast Water Systems: Used in pipelines for ballast water management on ships.
- Seawater Handling: Used in pipelines for transporting seawater in desalination plants and marine applications.
7. Food and Beverage Industry
- Sanitary Pipelines: Used in pipelines for transporting food-grade liquids and beverages.
- Cleaning Systems: Used in pipelines for CIP (Clean-in-Place) systems.
8. Pulp and Paper Industry
- Chemical Recovery Systems: Used in pipelines for transporting corrosive chemicals in pulp and paper production.
- Effluent Transport: Used in pipelines for transporting wastewater and effluents.
Rubber-lined steel pipes are high-performance pipes featuring a steel outer layer for structural strength and a rubber inner lining for protection against corrosion, abrasion, and chemical damage. The rubber lining can be customized using materials like natural rubber, EPDM, or butyl rubber to suit specific application needs.
We can also provide flanged pipe spool,flanged elbow,Flanged Tee,Flanged reducer with Rubber linining.
Rubber-lined steel pipes are high-performance pipes featuring a steel outer layer for structural strength and a rubber inner lining for protection against corrosion, abrasion, and chemical damage
