EN
RUBefore delivery, fittings undergo appearance, coating, and functional inspections to ensure defect-free surfaces, corrosion resistance, and proper assembly for customer satisfaction.
1. Higher Standard Certification
2. Perfect Production Solution
3. More Corrosion Resistant
4. Comprehensive After Service
5. Wide-ranging Application
HULK Metal's Variable Swivel Elbow is engineered for versatile pipe joining applications. With angles ranging from 73° to 287°, it provides maximum flexibility for complex structures. Made from durable materials and finished with protective coatings, it delivers outstanding strength and corrosion resistance. Ideal for both industrial and DIY projects, this fitting ensures stability, reliability, and ease of installation.
The parameters of the Variable Swivel Elbow Structural Pipe Fitting cover material options, surface treatments, and tube size compatibility to meet different project requirements. You can choose from malleable iron, ductile iron, stainless steel, or aluminum, and apply galvanizing, double-coating, or powder-coating finishes. Various tube sizes are available to fit different systems, and customization options are provided to meet specific structural demands.
| Pipe Info | |||
 | |||
| Material | Carbon Steel | ||
| Surface | Hot Galvanized / Powder Coating | ||
| Color | Refer To Pantone Color Card | ||
| Pipe Sizes Comparison | |||
| Size | Inner Diameter | Outer Diameter | |
| Nominal (DN) | in | mm | |
| T | 15 | 1/2" | 21.3 |
| A | 20 | 3/4" | 26.9 |
| B | 25 | 1" | 33.7 |
| C | 32 | 5/4" | 42.4 |
| D | 40 | 3/2" | 48.3 |
| E | 50 | 2" | 60.3 |
| Color only refers to the color of the powder coating. The powder coating of the pipe will allow for color tolerance, Kindly contact us for details. The quality of the tube will meet the usage requirements in most scenarios. For special scenarios, Kindly contact us for performance testing. | |||
| Basic Info Table of Fittings | |||||||||||
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| Name | 125H Variable Swivel Elbow | ||||||||||
| Material | Malleable Iron / Ductile Iron | ||||||||||
| Surface | Hot-dip Galvanized / Double Galvanized / Powder Coating / Raw Black | ||||||||||
| Color | Refer To Pantone Color Card | ||||||||||
| Pipe Sizes Comparison | Surface Finishing & Code | Dimensions(mm) | |||||||||
| Size | DN | in | mm | Hot-dip Galvanized | Double Galvanized | Powder Coating | Raw Black | a | b | C | D |
| B | 25 | 1" | 33.7 | HM-G-125H-B | HM-D-125H-B | HM-PC-125H-B | HM-B-125H-B | 62 | 27.2 | ||
| C | 32 | 5/4" | 42.4 | HM-G-125H-C | HM-D-125H-C | HM-PC-125H-C | HM-B-125H-C | 75 | 31.7 | ||
| D | 40 | 3/2" | 48.3 | HM-G-125H-D | HM-D-125H-D | HM-PC-125H-D | HM-B-125H-D | 85 | 34.7 | ||
The Variable Swivel Elbow Structural Pipe Fitting is an essential connector designed for flexible structural applications. It allows two pipes to be joined at a wide range of angles, making it ideal for complex layouts in guardrail, handrail, and DIY structures. Manufactured with high-quality materials and durable finishes, this fitting offers outstanding performance, versatility, and corrosion resistance while maintaining reliable stability in various environments.
It is designed to connect two pipes at angles between 73° and 287°. This design provides flexibility for different layouts and ensures secure and reliable pipe connections, making it an excellent choice for projects requiring variable angular adjustments.
It is widely applied in guardrail and handrail systems to connect uprights and rails securely.
Suitable for connecting two horizontal rails positioned at angles between 73° and 287°.
In DIY structures, it offers a broad range of applications, allowing flexible configurations for furniture, storage racks, and frameworks.
Ideal for both indoor and outdoor projects, ensuring durability and corrosion resistance.
Perfect for industries where variable connections are required, such as construction, safety barriers, and event structures.
It consists of two sockets with hemispherical linking ends riveted together. Each socket has an internal hexagon bolt to secure the inserted pipe. This structure ensures strength, adjustability, and easy installation for various structural projects.
The two riveted sockets rotate within the angle range of 73° to 287°, allowing pipes to be fixed at different orientations. After positioning, the internal hex bolts are tightened to lock the pipes in place, ensuring a secure and stable joint.
Available in cast iron, stainless steel, and aluminum, each material provides unique strength, corrosion resistance, and suitability for different projects.
Cast iron versions include malleable iron and ductile iron. These provide high strength and affordability, making them suitable for most construction and industrial projects. They are the most commonly used material and can be easily galvanized for enhanced corrosion resistance.
Stainless steel offers excellent corrosion resistance and is suitable for applications in humid, coastal, or industrial environments. It provides higher durability and requires less maintenance, making it ideal for long-term projects where both appearance and performance are critical.
Aluminum is lightweight, corrosion-resistant, and easy to process, making it perfect for portable structures and DIY applications. Although not as strong as cast iron or stainless steel, it provides sufficient stability for light to medium-duty projects and offers aesthetic appeal.
Different surface treatments enhance durability and corrosion resistance, ensuring the fitting performs well in various indoor and outdoor environments.
Hot-dip galvanizing creates a thick, uniform zinc coating that protects the fitting from corrosion and extends service life. It is highly suitable for outdoor and industrial applications exposed to moisture, chemicals, or harsh environments. This treatment ensures maximum protection and is ideal for long-lasting installations with minimal maintenance requirements.
This treatment applies electro-galvanizing on top of hot-dip galvanizing, forming a double protective layer. It improves both corrosion resistance and surface aesthetics. Suitable for demanding environments, such as marine or heavy industry, where fittings are exposed to high humidity, salinity, or pollutants. It provides extra durability, extending product life significantly.
Powder coating creates a smooth, uniform, and attractive finish that enhances corrosion resistance. It can be customized in various colors to suit project requirements. This surface treatment is ideal for indoor and decorative applications, as well as outdoor projects needing additional protection and visual appeal. It also offers improved wear and scratch resistance.
If you would like to learn about other fittings, you can click structural pipe fittings to explore more products.
Confirm whether the size of the Variable Swivel Elbow can meet the requirements of your system.
Ensure the surface treatment is suitable for the intended environment.
Verify compliance with local installation standards.
Pay attention to the riveted joints—avoid injury by keeping hands away from gaps during use.
Choose a supplier with ISO 9001 certification and complete quality control systems. This ensures the Variable Swivel Elbow you purchase meets international standards, undergoes strict inspections, and maintains consistent quality. Reliable suppliers can provide material certificates and surface treatment reports for added assurance.
Evaluate whether the supplier has advanced factories and sufficient production capacity. A strong production line ensures timely delivery, better efficiency, and the ability to fulfill both small and large orders. Suppliers with in-house casting, surface treatment, and assembly capabilities can offer more stable quality and faster lead times.
A good supplier should provide customization options for materials, sizes, and surface treatments. This flexibility allows you to receive products that perfectly fit your project requirements. A professional technical team can also provide advice and solutions tailored to your needs, helping you optimize your project's efficiency and durability.
Reliable suppliers offer comprehensive after-sales services, including return, exchange, and technical support. This ensures any issues encountered after delivery can be quickly resolved. A strong after-service system demonstrates responsibility and professionalism, giving you confidence in long-term cooperation and reducing risks in procurement.
A: A fully equipped quality inspection center, rigorous testing procedures, and a complete quality assurance system.
A: It depends on many factors, such as the raw materials, size, surface treatment, order quantity, etc. We own factory and can provide real-time quotes.
A: All prices are based on high quality. With the same quality, our price is cheaper. Bigger orders can get better prices.
A: The price depends on the product size. You can contact us for a quote at any time.
A: It depends on your needs. Generally, it is around 30 days. The more orders you make, the higher the production efficiency. Usually, it will not exceed 45 days.
A: Hot-dip Galvanizing, Double-Coating Galvanizing, Customized color of powder coating will have a MOQ.
A: We have worked with clients in more than 50 countries across Europe, North America, South America, Africa, Southeast Asia, and other areas.
A: Cast Iron, Stainless Steel, Aluminum. But we only have full molds for cast iron fittings. Other materials require mold making and OEM.
A: Multiple standard tube sizes are available, including 33.7mm, 42.4mm, and 48.3mm. We also provide customization to meet specific requirements. All sizes comply with international standards to ensure compatibility and easy installation.
A: We support T/T, L/C, and other standard payment methods. Delivery terms include FOB, CIF, and EXW. Our logistics team will provide professional support to ensure your goods arrive safely and on time.
We communicate with you to clarify requirements for surface treatment, order quantity, packaging, delivery terms, and payment. Our technical team evaluates these details to propose the best production plan that matches your project's specifications and expectations.
High-quality raw materials are purchased from trusted suppliers. Each batch undergoes strict incoming inspections to verify composition, strength, and compliance with standards. This ensures that only qualified materials enter production, guaranteeing durability and performance of the Variable Swivel Elbow.
The production process follows strict ISO 9001 standards. Each step is monitored to ensure accuracy and consistency. From casting to surface treatment, every detail is controlled carefully to deliver fittings with superior strength, durability, and long-lasting corrosion resistance.
Molten metal is poured into precision molds to create the two socket parts of the Variable Swivel Elbow. After cooling and solidification, the raw castings are removed, inspected, and prepared for further processing to ensure dimensional accuracy and strength.
The raw castings are cleaned, polished, and machined to achieve precise dimensions and smooth surfaces. This step improves appearance and ensures the sockets fit together properly. It also prepares the parts for subsequent surface treatments, ensuring durability and aesthetics.
Each finished part undergoes strict dimensional checks, hardness tests, and visual inspections. Defective parts are removed, and only those meeting the required tolerances and standards proceed to the next step. This ensures consistent quality in every production batch.
Depending on requirements, the fitting is galvanized, double-coated, or powder coated. Each process improves corrosion resistance and durability. Surface treatments are applied in certified facilities to guarantee even thickness, strong adhesion, and long-term protection against harsh environments.
The two socket parts with hemispherical ends are riveted together. This allows angular movement between 73° and 287°. Internal hex bolts are added to each socket to secure the pipes. The assembly is inspected for strength and smooth operation.
A second round of inspections checks assembly strength, rivet tightness, and functional performance. Each Variable Swivel Elbow must pass load-bearing and angular adjustment tests to ensure reliability. Only products meeting all quality standards are approved for packaging and shipment.
Finished fittings are carefully packed using cartons, pallets, or custom packaging to prevent damage during transport. HULK Metal's logistics team arranges safe and efficient delivery. We provide flexible shipping options to ensure your goods arrive on time and intact.
After receiving goods, you can check their quality and quantity. Any products with quality problems can enjoy return, exchange, and restocking services. Our service team also provides technical support and consultation to help you use the products more effectively.
HULK Metal implements a comprehensive quality control system throughout the production process of Variable Swivel Elbow Structural Pipe Fittings. From raw material inspection to final shipment, each step follows ISO 9001 standards. Advanced testing equipment and strict inspection procedures ensure dimensional accuracy, durability, and corrosion resistance. By maintaining consistency in every batch, we guarantee fittings that meet international standards and deliver stable performance in demanding environments.
Before delivery, fittings undergo appearance, coating, and functional inspections to ensure defect-free surfaces, corrosion resistance, and proper assembly for customer satisfaction.
Precise measurements are taken to confirm pipe fitting sizes, thread accuracy, and assembly compatibility, ensuring all products strictly comply with required tolerances and project specifications.
Every shipment is counted and verified against the order list. This ensures the correct product type, surface treatment, and exact quantities are prepared for safe delivery.
Practical installation tests check how well each fitting works and holds up, making sure it can handle real-life conditions, keep pipe connections tight, and stay stable over time.
HULK Metal operates modern factories equipped with advanced casting, machining, and surface treatment facilities. Our factory integrates every production stage, ensuring high efficiency and stable quality. A professional QC center monitors the entire process, while skilled workers with years of experience maintain consistency in each order. With warehousing and logistics support, we provide global buyers with flexible delivery, reliable supply capacity, and comprehensive services.
Choosing HULK Metal means choosing higher-standard Variable Swivel Elbow Structural Pipe Fittings. We have advanced factories, professional teams, and strict quality systems to provide products certified by ISO, CE, and TUV. Every fitting is designed for durability, stability, and corrosion resistance. With over 16 years of experience, complete after-service, and technical support, we ensure your orders are delivered on time and meet your project requirements with professional solutions.
To help you better understand Variable Swivel Elbow Structural Pipe Fittings and their applications, HULK Metal provides a wide range of related articles. These include technical guides, installation tips, surface treatment comparisons, and case studies from different industries. Each article is accompanied by images, titles, and descriptions for easy reference. Whether you are new to structural pipe fittings or looking for advanced solutions, these resources will give you valuable insights and practical knowledge.
In addition to Variable Swivel Elbow Structural Pipe Fittings, HULK Metal offers a full range of structural pipe fittings to meet diverse project needs. Examples include Single Socket Tee, Double Lugged Bracket, Side Palm Fixing, Ground Socket, Variable Elbow, Adjustable Angle Two Socket Cross, and more. Each fitting is manufactured with strict standards and multiple surface treatment options. You can explore these fittings with images, titles, and detailed descriptions for a complete understanding of our product range.
Our handrail bracket structural pipe fittings have multi-type surface treatments to prevent corrosion, precise dimensions, and a strong load-bearing capacity. They provide a longer service life and a more secure installation, making them perfect for outdoor safety rails, balconies, and staircases.
The Internal Swivel Tee Structural Pipe Fitting allows a 360 deg rotation around the connection point, making it ideal for angled rail systems. Manufactured from malleable iron or ductile iron with multiple finish options, it provides stronger performance and longer service life.
The Three Socket Angle Tee Structural Pipe Fitting is an essential component for angled guardrails and handrails. It connects two top rails to an upright post with adjustable angles from 0 to 11 degrees, ensuring both safety and flexibility.
The Slope Short Tee is specially designed for guardrail and handrail systems with slopes from 0 to 11 degrees. Its internal socket allows for the precise adjustment and secure fixing of uprights using hex bolts.
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
Customizable
HULK Metal supplies base flange structural pipe fittings made of durable materials with multiple surface finishes. They are designed for stronger pipe connections and longer service life. Our modern factory, professional team, and strict inspection ensure higher-standard products for your projects.
HULK Metal manufactures high-standard railing base flange structural pipe fittings with ISO 9001 certification. Our fittings feature precise dimensions, reliable strength, and multiple surface treatments, ensuring durability and excellent performance in both indoor and outdoor applications for handrail and guardrail systems.
The Short Swivel Tee Structural Pipe Fitting is widely used in handrail and guardrail systems where angled connections are required. Manufactured by HULK Metal with strict ISO 9001 standards, it offers strength, flexibility, and long service life.
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
33.7/26.9
Customizable
The Swivel Base Flange is engineered to secure pipes to walls with adjustable angles from 0° to 180°. Its modular design ensures easy assembly, reliable stability, and compatibility with multiple pipe sizes and materials.
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
33.7
42.4
48.3
Customizable
The 90 Degree Two Way Elbow structural pipe fitting is designed for connecting two pipe ends at a right angle. It is commonly applied in handrail, guardrail, and fence systems, ensuring strong and stable joints.
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
21.3
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
Customizable
The 90 Degree Two Socket Tee offers two perpendicular sockets for secure pipe connections. It is engineered to provide precise alignment and exceptional strength in guardrails, handrails, fencing, and DIY structures.
Three Socket Cross Structural Pipe Fittings connect vertical uprights with three perpendicular horizontal pipes, offering robust support for fencing, storage racks, and DIY systems. Their versatile design allows easy installation and configuration, ensuring durability and stability in multiple applications.
HULK Metal's Clamp on Tee Structural Pipe Fittings are engineered for secure, easy installation on existing systems. Made from high-quality malleable or ductile iron, they support durable, stable connections for guardrails, handrails, and DIY structures.
Two Socket Cross Structural Pipe Fittings are designed to connect upright pipes with two perpendicular pipes in the same plane. Manufactured from high-quality cast iron, stainless steel, or aluminum, these fittings undergo strict inspection and advanced surface treatment
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
Customizable
HULK Metal manufactures high-quality Three Socket Tee (Long Tee) Structural Pipe Fittings that combine strength, precision, and reliability. Made from malleable or ductile iron with customizable finishes such as galvanizing or powder coating, these fittings are ideal for both industrial and DIY applications.
The side outlet elbow, also called a 3-way elbow, is designed to connect three pipes at 90° angles. It provides strength and stability in guardrails, handrails, and cube-like structures.
HULK Metal's Variable Swivel Elbow is engineered for versatile pipe-joining applications. With angles ranging from 73° to 287°, it provides maximum flexibility for complex structures.
HULK Metal's Reducing Short Tee Structural Pipe Fitting is engineered to provide a secure vertical pipe connection with different diameters, ideal for mid-rails or guardrail top rails.
The Single Socket Tee Structural Pipe Fitting, also known as Short Tee, is widely used in railing systems, guardrails, and DIY structures. It allows one pipe to connect securely at a right angle to another, forming a stable "T" connection.
The Single Lugged Bracket Structural Pipe Fitting is a reliable solution for fixing pipes onto walls or panels where limited space prevents double lug use.
The Vertical Railing Side Support Structural Pipe Fitting is designed to provide strong and stable support for railing systems. Manufactured with malleable iron or ductile iron, and available in multiple surface treatments such as hot-dip galvanizing or powder coating, these fittings ensure long-term durability.
The Cradle Clamp Structural Pipe Fitting is designed to fasten pipe rails securely to uprights. Its open clamp structure allows quick installation, while inner hex bolts ensure reliable stability.
Horizontal Railing Side Support Structural Pipe Fittings are designed to fasten railing uprights firmly against walls or side structures.
The Adjustable Short Tee is engineered to connect pipes at variable angles from 30 deg to 60 deg. Its durable structure, simple installation, and flexible design make it suitable for guardrail and handrail systems.
The Single Swivel Combination is formed by joining two swivel fittings, making it ideal for environments requiring flexible angle adjustments. While it cannot independently bear lateral loads, it becomes effective when used together with other fittings.
The Add on Short Tee Structural Pipe Fitting is a hinged socket fitting that allows vertical connections to existing pipe systems without dismantling.
HULK Metal Variable Elbow Structural Pipe Fitting is designed to create secure and adjustable angled connections between pipes. With a strong structure and reliable locking bolts, it delivers stability and precision.
HULK Metal Adjustable Angle Two Socket Cross Structural Pipe Fitting provides a strong and flexible connection between uprights and rails. Designed for rail systems with slopes from 45° to 90°, it is widely used in stairways, handrails, and ramps.
The Galv Ground Socket Structural Pipe Fitting is designed to provide secure support for uprights in diverse ground conditions. Made of high-strength malleable or ductile iron, it ensures long-term stability and durability.
The Side Palm Fixing Structural Pipe Fitting is engineered to provide a solid and secure connection for railing uprights against walls, stairs, or ramps. Its three-lug design with reinforced sockets improves stability and load capacity.
The Double Lugged Bracket Structural Pipe Fitting is engineered to mount pipes flush against flat walls or panels. Featuring two lugs with fixing holes, it supports various screw or chemical fixing methods. Its socket with hex bolts firmly secures the pipe in place.
The Double Male Swivel Structural Pipe Fitting is designed for flexible joint connections and works seamlessly with single swivel female parts to form a stable structure.
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
Customizable
Hook structural pipe fittings provide temporary mounting points on pipes. Designed for horizontal and vertical installation, they ensure user safety with rounded heads and secure locking via hex bolts. This solution is suitable only for incomplete systems.
The slope railing base flange pipe fitting is designed to secure inclined uprights to the ground with adjustable angles. Manufactured with strict quality control, it offers multiple surface treatments, ensuring strength, corrosion resistance, and suitability for diverse railing and structural applications.
Our gate hinge pipe fittings combine robust materials with precision casting to create dependable connections for gates. With multiple surface treatments and sizes available, they meet diverse installation requirements, deliver excellent corrosion resistance, and provide a secure, smooth rotational function.
Gate Eye Pipe Fittings provide a reliable hinge connection for gates and handrail systems. Made from strong cast iron or flexible ductile iron, they come with different surface finishes, providing great performance, a longer lifespan, and making them suitable for many construction and industrial uses.
The 119A Galvanized Railing Connectors Add-on Two Socket Cross is different from the 119 type in that it can add two pipes to an already completed system.
119 Galvanized Safety Railing Fittings Two Socket Cross is used to add two pipes on the same plane to form a cross structure for a specific position of a pipe.
116A Galvanized Pipe Guardrail Fittings Add On Side-outlet Tee is used to add two perpendicular rails to an already assembled handrail or guardrail uprights, or to add two perpendicular pipes to an assembled DIY structure such as a cube or cuboid.
101 Reducing Short Tee Galvanized Pipe Railing Fittings are often used. HULK Metal is a well-known supplier in China. We look forward to your inquiry.
No. 101 galvanized pipe handrail fittings are used to connect two pipes into a "T" shape. It is also called Short Tee. One pipe is inserted into the socket and the other one passes through the channel above.
104 galvanized slip-on pipe fittings long tee can be used to add two horizontal pipes to the guardrail or handrail uprights, or to connect two pipes in a DIY structure and add a vertical pipe to them.
104 galvanized slip-on pipe fittings long tee can be used to add two horizontal pipes to the guardrail or handrail uprights, or to connect two pipes in a DIY structure and add a vertical pipe to them.
Safety rail fittings are slip-on pipe fittings for safety railings. They can be quickly installed to complete a system, are easy to operate, and have a longer life and better performance. The 125R reducing 90-degree elbow is a special and uncommon fitting used to connect two pipes of different thicknesses.
We can provide 21.3 mm to 60.3 mm size, that is, 1/2" to 2". We have a full range of molds, can complete each order faster.
124 type Galvanized Key Clamp Fitting uses 3 types of hot-dip galvanizing, double coating, and powder coating. We can provide 33.7mm, 42.4mm and 48.3mm diameters. We integrate a complete supply chain and a professional team to provide better products and services. Looking forward to your inquiry.
123 Type Galvanized Railing Fittings is a kind of elbow that can connect two pipes with an angle of 40° to 70°. We can provide two calibers: 42.4mm and 48.3mm. We will strictly implement ISO9001 to manage the supply chain and provide better products and services.
We integrated a complete supply chain, passed ISO 9001 certification, formed a professional technical team and produced a full range models of the galvanized pipe connector fittings to provide the best services and products. Looking forward your inquiry.
As a top metalworking service provider, we want to let every customer experience a sense of security in purchasing, sales, etc., and better realize their value through continuously defining new standards for products and services.
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