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180° Elbow
180° elbow is a kind of elbow fitting commonly used in pipeline systems. It is usually used to change the direction of the pipeline and realize the reverse flow of pipeline fluid or gas. Its function is to change the flow direction of fluid or gas by 180 degrees. It is usually used to avoid fluid resistance caused by right-angle turns or when the direction needs to be adjusted during pipeline installation. 180° elbow is widely used in various pipeline systems, especially in the petroleum, chemical, electric power, construction, municipal and other industries to ensure the smooth operation and long-term stability of the pipeline.
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1. Product Features
High pressure bearing capacity
The 180° elbow design has a high pressure bearing capacity and can withstand the pressure of the fluid in the pipeline to ensure the stable operation of the pipeline system.
Strong corrosion resistance
It is often made of anti-corrosion materials such as stainless steel and carbon steel, and is suitable for pipeline systems with various corrosive media, such as pipelines in the chemical, petroleum and other industries.
Smooth fluid flow
Compared with 90° elbows, 180° elbows have lower fluid resistance, which can ensure smoother fluid flow in the pipeline and reduce energy loss.
Space saving
180° elbows are usually small in size and are suitable for the installation of pipelines in limited spaces. They can effectively save installation space and adjust the direction of the pipeline.
Diverse specifications
According to different pipeline requirements, 180° elbows of different sizes, materials, and connection methods can be provided to meet the installation requirements of various systems.
2. Technical parameters
Carbon Steel | Commonly used in conventional industrial pipelines, with strong pressure bearing capacity and suitable for most non-corrosive fluids |
Stainless steel | Suitable for corrosion-resistant, high-temperature-resistant, high-pressure environments, such as chemical, food processing and other industries |
alloy steel | Applicable to high temperature and high pressure conditions, commonly used in oil and natural gas pipeline systems |
PVC/Plastic | Used in low-pressure water supply and drainage piping systems, and has a narrow range of ambient temperature. |
copper | Suitable for some pipes that require good conductivity |
3. Specifications
Nominal diameter (DN): Common sizes range from DN15 (1/2") to DN1200 (48"), which can be selected according to pipeline needs.
Wall thickness: Depending on the bearing pressure of the pipeline, the wall thickness of the 180° elbow can be selected in different specifications, generally SCH40, SCH80, SCH160, etc.
4. Working temperature
The applicable temperature range is usually -40°C to +450°C, and the specific temperature range varies according to different materials.
5. Working pressure
The pressure that can be tolerated generally ranges from 1MPa to 16MPa, depending on the application and material selection of the pipeline.
6. Connection method
Welding connection: suitable for pipeline systems that need to be fixed for a long time and cannot be disassembled.
Flange connection: commonly used in pipeline systems that need to be disassembled, repaired or replaced, using flanges and bolts for connection.
Threaded connection: suitable for small-diameter pipelines, easy and fast connection.
Clamp connection: suitable for small-diameter pipelines, convenient and quick installation and disassembly.
7. Common types
Standard 180° elbow
This is the most common type, used in ordinary pipeline systems to change the flow direction of the fluid as needed.
Lined elbow
In order to enhance corrosion resistance, some 180° elbows are coated with a corrosion-resistant coating or lined with plastics, such as fluoroplastics, on the inner surface, which are suitable for conveying highly corrosive fluids.
Large radius 180° elbow
The design adopts a larger bending radius, which is suitable for occasions where the fluid flow needs to be smoother, reducing the disturbance and resistance of the fluid.
Short radius 180° elbow
The bending radius of the elbow is small, which is suitable for occasions with limited space or low requirements for fluid flow resistance.
Eccentric 180° elbow
The eccentric elbow is designed to change the flow direction of the fluid in the horizontal pipeline and handle pipelines of different heights. It is commonly used in water, oil and other pipeline systems.
8. Application areas
Oil and natural gas
180° elbows are widely used in oil and natural gas transportation pipeline systems, especially in long-distance pipelines, where 180° elbows are needed to adjust the direction of the pipeline.
Chemical industry
Used in chemical transportation pipeline systems, 180° elbows can adapt to complex flow direction changes, especially in corrosion-resistant environments.
Power industry
In the steam pipeline system of power plants, 180° elbows are often used to change the direction of steam or hot water pipelines to ensure stable operation of the system.
Construction and municipal engineering
In construction, water supply and drainage systems, 180° elbows are often used to adjust the direction of pipes to ensure smooth water flow.
Metallurgy and mining
In the metallurgical industry, 180° elbows are common in high-temperature and high-pressure pipe systems and can withstand extreme working environments.
Food and beverage industry
In some food processing pipes, 180° elbows are used to ensure the direction of fluid flow, especially in stainless steel pipes.
9. Installation and maintenance
Installation requirements
When installing a 180° elbow, it is necessary to ensure that the connection with the pipe is firm to avoid water leakage or leakage. Especially when connecting flanges, ensure that the flange gaskets and bolts are tightened to avoid leakage.
Maintenance recommendations
Regularly check the sealing of the elbow connection to ensure that there are no problems such as aging, corrosion or loosening. If the pipeline is operated at high temperature or high pressure for a long time, the pressure resistance of the elbow needs to be checked regularly.
Quality Assurance and Certification
10. Quality Control
Our 180° elbow products are designed and manufactured in strict accordance with international standards (such as ANSI, DIN, ISO), and have passed multiple quality tests to ensure their reliability, durability and performance.
Certification
The products comply with ISO 9001 quality management system certification, and some products also have CE certification to ensure that they meet the standard requirements of different countries and regions.
11. Summary
As an indispensable accessory in the pipeline system, 180° elbows are widely used in various industries, mainly used to change the flow direction of fluids or gases. Choosing the right 180° elbow can effectively ensure the smooth operation of the pipeline system, reduce the resistance and loss of the fluid, and extend the service life of the pipeline system. In different industries and environments, 180° elbows have a variety of materials and specifications to choose from to adapt to different working conditions and requirements.
Production Process
Material Cutting
Medium Frequency Heat Forming
Calibration
Heat Treatment
Final Processing
Non-destructive Testing
Surface Treatment
Coating and Marking
Packaging and Delivery