Steel Elbow

Why Choose Us

Factory Strength

Shanghai KEK Pipeline Technology Co., Ltd. is a reputable AAA listed pipe fittings manufacturer in China, covering an area of 66666㎡ (80000+㎡ in Phase II), with more than 30 technicians and engineers.

Our Certifications

KEK has obtained ISO9001, ISO14001, ISO18001, CE/PED, API certification and TS pressure pipe component special equipment manufacturing license, as well as Russia's EAC continuous certification.

Advanced Equipment

It has a full set of the largest and most advanced equipment in China, including a 4000-ton hydraulic press and a 3000-ton three-way cold extrusion molding machine.

Product Traceability

Product traceability, all products are numbered and indexed by furnace number, production process number, and RT inspection number to ensure the unique traceability of the product.

What is Steel Elbow

Steel pipe elbow is an important parts in plumbing pipeline systems and used to change the fluid directions. It ranges in different types as per body material there are stainless steel elbow, carbon steel elbow, and alloy steel; As per fluid directions there are 45 degree , 90 degree elbow and 180 degree; As per elbow length and radius there are short radius elbow (SR elbow) and long radius elbow (LR elbow); As per connections types there are butt weld elbow, socket weld elbow and threaded steel piping elbow.

3 Inch 90 Degree Elbow Carbon Steel
Product Name: 3 inch 90 degree elbow carbon steel
Dimension and Wall Thickness：
Seamless: 1/2”~24” (DN15~DN600) SCH5~SCH XXS
End connection：PE or BE
Marking： according...
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90 Degree Carbon Steel Pipe Elbow
Product Name: 90 degree carbon steel pipe elbow
Dimension and Wall Thickness
Seamless: 1/2”~24” (DN15~DN600) SCH5~SCH XXS
End connection：PE or BE
Marking： according to...
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Alloy Steel 45 Degree Elbow
Product Name:Alloy steel 45 degree elbow
Dimension and Wall Thickness
Seamless: 1/2”~24” (DN15~DN600) SCH5~SCH XXS
End connection：PE or BE
Marking： according to...
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A234 Wp11 Elbow
Product Name: a234 wp11 elbow
Dimension and Wall Thickness
Seamless: 1/2”~24” (DN15~DN600) SCH5~SCH XXS
End connection：PE or BE
Marking： according to customer’s...
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Carbon Steel 90 Degree Elbow
Product Name: carbon steel 90 degree elbow
Dimension and Wall Thickness
Seamless: 1/2”~24” (DN15~DN600) SCH5~SCH XXS
End connection：PE or BE
Marking： according to...
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Benefits of Steel Elbow

01/

Hygienic and non-toxic
The material is completely composed of carbon and hydrogen, without adding any toxic heavy metal salt stabilizer. The hygienic performance of the material has been tested by the national authoritative department.

02/

Lightweight
The density of the stamping elbow is 0.89-0.91g/cm, which is only ten percent of that of steel pipe. Due to its lightweight, it can greatly reduce transportation costs and the construction strength of the installation.

03/

Good heat resistance
When the working water temperature is 70 degrees, the softening temperature is 140 degrees.

04/

Good corrosion resistance
Except for a few hydrogenating agents, it can resist the erosion of various chemical media, and has excellent acid resistance, alkali resistance, corrosion resistance, no rust, no corrosion, no breeding of bacteria, and no electricity chemical corrosion.

05/

High impact resistance
Due to the unique impact strength performance has been significantly improved compared with other solid wall pipes, and its ring stiffness is equivalent to 1.3 times that of the solid wall.

06/

Long service life
Under the rated operating temperature and pressure, the pipe has a service life of more than 50 years, and has anti-ultraviolet and anti-radiation, so that the product will never fade.

Types of Steel Elbow

90-Degree Stainless Steel Elbows

The 90-degree stainless steel elbow is the most common type, featuring a 90-degree bend that allows for a sharp change in direction. Its compact design is suitable for tight spaces and is widely used in plumbing and HVAC systems.

45-Degree Stainless Steel Elbows

The 45-degree stainless steel elbow offers a gradual change in direction, making it useful in situations where a more gentle flow redirection is required. It is commonly used in industrial pipelines and certain HVAC applications.

Long Radius Stainless Steel Elbows

Long radius stainless steel elbows have a larger radius, resulting in a smoother flow and reduced pressure drop. They are often preferred in applications where fluid velocity needs to be maintained, such as in food processing and high flow-rate systems.

Short Radius Stainless Steel Elbows

Short radius stainless steel elbows have a smaller radius, leading to higher pressure drops but compact installations. They are suitable for tight spaces and general plumbing applications.

Threaded Stainless Steel Elbows

Threaded stainless steel elbows have threaded ends, allowing for easy installation and disassembly. They are commonly used in plumbing systems, particularly when pipe connections need to be adjustable.

Socket Weld Stainless Steel Elbows

Socket weld stainless steel elbows feature a socket at one end, allowing for easy connection to pipes via socket welding. They provide a strong and reliable joint and are widely used in high-pressure applications.

Application of Steel Elbow

Plumbing
In residential and commercial buildings, pipe elbows are vital for directing water flow around corners and obstacles, ensuring an efficient plumbing system.

Industrial Applications
Industries such as petrochemical, oil and gas, and chemical processing heavily rely on pipe elbows to manage complex piping networks efficiently.

HVAC Systems

Heating, ventilation, and air conditioning systems utilize pipe elbows to redirect airflow and maintain optimal temperature control.

Infrastructure Projects

Water treatment plants, sewage systems, and infrastructure projects necessitate pipe elbows to maneuver pipelines effectively.

Oil and Gas Industry

In oil refineries and gas processing plants, pipe elbows play a critical role in managing the flow of various liquids and gases throughout the complex network of pipelines.

Chemical Processing Plants

Industries dealing with chemical processes rely on pipe elbows to ensure the safe and efficient movement of corrosive liquids and chemicals.

How to Choose Steel Elbow

Material Grade
The material grade of stainless steel is vital as it determines the resistance to corrosion, durability, and suitability for food processing environments. The most recommended material grade for food processing industries is Type 316 stainless steel, also known as 316 SS. This grade offers excellent corrosion resistance and is resistant to both organic and inorganic chemicals commonly found in food processing.

Surface Finish
The surface finish of Steel Elbow is essential for the food processing industry. A smooth and polished surface finish minimizes the adhesion of bacteria, dirt, and other contaminants, making it easier to clean and maintain hygiene. A typical requirement for food processing industries is a surface finish of 32 microinches or better.

Dimensions
The dimensions of the Steel Elbow should be compatible with the existing piping system. Consider the angle of the elbow, commonly available in 45 degrees and 90 degrees, depending on the specific needs of your food processing system. Additionally, ensure that the elbow has the appropriate diameter to match the rest of the piping system.

Welding
Steel Elbow are usually welded to the piping system. It is crucial to consider the welding method used and ensure that it complies with sanitary welding standards. Welding should be done using a TIG (Tungsten Inert Gas) welding process to ensure clean and smooth welds, avoiding any crevices or voids that could harbor bacteria or other contaminants.

Certifications and Compliance
When choosing a Steel Elbow for food processing, ensure that it meets relevant industry standards and certifications. Look for certifications such as NSF/ANSI standard 51 for food equipment materials, NSF/ANSI standard 61 for materials used in contact with drinking water, and FDA (Food and Drug Administration) compliance for materials used in food processing.

Cleanability and Maintenance
The ease of cleaning and maintenance is a crucial factor for the food processing industry. Choose a Steel Elbow with minimal crevices, as this reduces the chances of bacterial growth and makes it easier to clean. Additionally, consider the availability of cleaning systems such as CIP (Clean-in-Place) or SIP (Steam-in-Place) for efficient and effective cleaning.

Installation Steps of Steel Elbow

Selecting the right material

Ensure that the elbow fittings selected match the material of the piping system to avoid corrosion or other compatibility problems,We have pvc elbow,ppr elbow etc,.

Prepare Pipe Ends

Before installing elbows, make sure that pipe ends are flat, free of scratches and clean. Repair or clean the end of the pipe if necessary.

Proper Measurement and Marking

Be sure to measure and mark the pipe to ensure proper positioning and angle of the elbow.

Proper Connections

Ensure that elbows are securely attached to the pipe using proper connections such as welded, threaded, or flanged connections.

Follow Manufacturer’S Guidelines

Follow the installation guidelines provided by the elbow fitting manufacturer, including tightening torques and installation procedures.

Check Sealing Performance

After installation is complete, check connections for signs of water or gas leakage and retighten connections as necessary.

How to Maintain Steel Elbow

Regular Cleaning

It is essential to clean Steel Elbow periodically to remove dirt, dust, and other contaminants that accumulate over time. Regular cleaning prevents the buildup of rust and other corrosive substances that may affect the performance of the piping system. Cleaning the pipe elbows should be done with a soft cloth and mild soap solution or a non-abrasive cleaner.

Lubrication

Steel Elbow need proper lubrication to prevent friction between the elbow and other parts. Lubricating the pipe elbows should be done regularly, especially in areas where there is high friction. It helps extend the life of the elbows and prevents premature wear and tear.

Check for Leakage

Leakage is one of the most common problems faced by piping systems. Checking for leakage should be a routine activity to ensure the system is running smoothly. Leaks can cause damage to the environment, increase utility bills, and damage machinery. If you find any leakage, replace the damaged parts immediately.

Inspect for Corrosion

Steel Elbow are known for their high resistance to corrosion. However, corrosion can occur over time, and it is essential to inspect the elbows for any signs of rust. If you do find rust, remove it immediately and consider applying a rust inhibitor to the affected area.

Innovations and Developments in the Steel Elbow Industry

Application of new materials

Special alloys, polymers and composites and other compliant materials are increasingly being used to improve the corrosion resistance, high temperature resistance and mechanical strength of the elbow, elbow fittings to expand the scope of application, including extreme environments.

Digital Design and Manufacturing

Elbow fittings can be more accurately designed and produced using computer-aided design (CAD) and computer numerical control manufacturing (CNC) technologies. This helps reduce waste and improve quality control.

Energy Efficiency and Environmental Protection

Elbows and fittings are designed and manufactured with features such as improved fluid dynamics to reduce energy consumption, and environmentally friendly coatings to minimize negative environmental impacts.

Customization and automation

Some manufacturers, like us, offer the ability to customize elbows and fittings to meet the needs of specific projects. The use of automated production lines and 3D printing technology can also help in mass production and reduce manufacturing costs.

Intelligent monitoring and maintenance

The elbow fittings industry is also benefiting from the development of Internet of Things (IoT) technology. Smart sensors can monitor the condition of elbow fittings and provide real-time data for maintenance and predictive repair.

Global Market Expansion

The elbow fittings industry is rapidly expanding globally to meet the growing demand for construction, manufacturing and infrastructure. This has facilitated increased international trade and technology exchange.

Our Factory

Shanghai KAIKE Pipe Technology Co., Ltd. is a reputable AAA listed pipe fittings manufacturer in China,covering an area of 66666㎡ (80000+ ㎡in stage II) and with technician and engineers more than 30 personal. Kaike Group is made up of Shanghai Kaike Piping Technology, Shanghai Kaike Valve manufacture and one export company Shanghai Chainmill Industry, they are all based in Shanghai, which the economic center of China. KAIKE has reached up to an annual output of pipe fittings of 20,000 tons.KAIKE has the ability to produce by various materials like carbon (low temperature) steel, stainless steel, duplex steel, alloy steel, nickel base alloy and special materials as requested according to GB, SH, Hg, JB, SY, ASME/ANSI, MSS, JIS, DIN, BS,GOST etc.Its main products include BW pipe fittings(SMLS or welded), steel flange, forged pipe fittings as well as prefabricated spools and manifolds,and also can produce according to customers' drawings and requirements.

Certificate

FAQ

Q: What is the difference between LR and SR elbow?

A: A long radius elbow has a curvature radius equivalent to 1.5 times the outer diameter of the pipe, denoted as R=1.5D. Conversely, a short radius elbow features a curvature radius equal to the outer diameter of the pipe, expressed as R=D. Here, D represents the diameter of the elbow, and R denotes the curvature radius.

Q: What is the difference between 3D and 3R elbows?

A: What is the difference between a 3R and a 3D elbow? There is no difference. Both have a centerline radius of three times the nominal size. MSS SP75 calls them 3R rather than 3D as usually associated with bend radii.

Q: What is the length of a 90 degree elbow?

A: The size range for seamless 90 Deg Short Radius Elbow ranges between ½ inch to 10 inches, while the Welded 90 Deg Street Elbow falls in the range starting from ½ inch to 48 inches. 90 Deg Elbow Dimensions are as follows - ASME/ANSI B16.

Q: What is the main difference between the SR and the LR?

A: SR stands for Short Reach, and LR stands for Long Reach. SR transceivers are almost always multi-mode, and optimized for high speeds over relatively short distances. However, the much higher-powered OM3 and OM4 formats can push that into the hundreds of meters for a single cable.

Q: What is difference between 1d and 1.5 D elbow?

A: Long radius elbow means that the curvature radius of elbow is 1.5 times the pipe diameter. D represents the elbow's diameter. Short radius elbow means that the radius of curvature of the elbow is equal to the diameter of the pipe. The curvature radius more than 1.5 times is called bend.

Q: What is the formula for pipe elbow?

A: This document provides a formula and table to calculate the elbow center for pipes based on the pipe diameter and elbow angle. The formula is: elbow center = tan(angle/2) x 38.1 x diameter.

Q: What angle do pipe elbows come in?

A: If you need your piping system to get turn or get around something in the way, you will need to bend your pipeline around with PVC elbows. Elbows are most commonly available in 90-degree angles and 45-degree angles, so your pipeline can be directed however you want it.

Q: How are piping elbows selected?

A: Types of Elbows based on Direction Angle.According to fluid flow direction of the pipes, elbows can be divided into different degrees, such as 45 degree, 90 degree, 180 degree, which are most common elbows. Also there are 60 degree and 120 degree elbows for some special pipelines.

Q: Can you use a 90 degree elbow in a drain pipe?

A: In drainage the Universal Plumbing Code requires long sweep 90 degree elbows for horizontal direction changes and at the bottom of stacks to go from vertical to horizontal regular 90 degree elbow are only allowed to turn down like in a horizontal to vertical direction change.

Q: What is the standard elbow for pipe?

A: As we know, according to fluid direction of the pipelines, elbow can be divided into different degrees, such as 45 degree, 90 degree,180 degree, which are most common degrees. Also there has 60 degree and 120 degree, for some special pipelines.

Q: What is the perfect elbow angle?

A: When your arms are held out at your sides and your palms are facing forward, your forearm and hands should normally point about 5 to 15 degrees away from your body. This is the normal "carrying angle" of the elbow.

Q: What is the difference between a pipe elbow and a bend?

A: The major difference is the radius of curvature. Elbow generally have radius of curvature between one to twice the diameter of the pipe. Bends have a radius of curvature more than twice the diameter. Elbows have industrial standards and have limitations to size,bend radius and angle.

Q: What is the difference between a sweep elbow and a regular elbow?

A: A sweep elbow is simply an elbow made out of a bent piece of pipe. There are short radius and long radius versions. To put this into context versus weld elbows, a short radius sweep elbow has a centerline of 3D (3 x the diameter of the elbow) whereas that is considered a long radius on a weld elbow.

Q: What is the offset of the pipe elbow?

A: An elbow offset consists of two elbows, known as the offset elbow (the elbow on the bottom) and the return elbow (the elbow on the top). Between the two elbows is the connecting pipe. The distance between the center of the flue on the offset elbow and the center of the flue on the return elbow is known as the "offset".

Q: What is the purpose of a 90 degree elbow?

A: The function of a 90° elbow is to change direction or flow in a piping system. Elbows are split into three groups which define the distance over which they change direction, expressed as a function of the distance from the centre line of one end to the opposite face.

Q: What is a 45-degree elbow in plumbing?

A: 45° Pipe Elbow is also known as “45 bends or 45 ells”. The 45° pipe elbow is used to connect tubes at a 45° pipe angle. As the name suggests, this is a pipe fitting device which is bent in such a way to produce 45° change in the direction of flow of the fluid/gas in the pipe.In drainage the Universal Plumbing Code requires long sweep 90 degree elbows for horizontal direction changes and at the bottom of stacks to go from vertical to horizontal regular 90 degree elbow are only allowed to turn down like in a horizontal to vertical direction change.

Q: What is the difference between a 45 elbow and a 90 elbow?

A: Since a 45-degree elbow has greater impact resistance, it might be more suitable for heavier materials like coal or mining products. On the other hand, the abrasion-resistant qualities of a 90-degree elbow make it a good fit for plastics, foodstuffs, and fine powders.There isn't a rule on a maximum number of bends, but the least amount of bends/ chain of directions is better. This will help prevent blockages within the waste pipe. If the pipework has sufficient fall and minimal bends you should be okay!

Q: How many types of elbow pipes are there?

A: According to the direction of the fluid, there are 45 degrees, 90 degrees elbow and 180 degrees. Depending on elbow radius, there is a short radius elbow (SR elbow) and a long radius elbow (LR elbow); Depending on the type of connection, there are butt welded elbows, socket welded elbows and threaded steel pipe elbows.

Q: What is the difference between threaded and flanged elbows?

A: Threaded connections are almost the polar opposite of flange connections. Rather than fitting pieces together using multiple parts, threaded connections are rimmed with matching grooves, one on the outside of a piece and the other on the inside. Assembly is simple, because the sections simply screw together.

Q: What is a 90 degree elbow used for?

A: 90° elbows are used to connect two pipes that are at a right angle to one another. On a level installation, they serve as corner or railing ends. In other words, A 90-degree elbow is easily connected to pipes made of so many different materials, including rubber, steel, cast iron, copper, and plastic.The size range for seamless 90 Deg Short Radius Elbow ranges between ½ inch to 10 inches, while the Welded 90 Deg Street Elbow falls in the range starting from ½ inch to 48 inches. 90 Deg Elbow Dimensions are as follows - ASME/ANSI B16.

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