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By OMEJA CASTING
Tube clamp fittings are essential components in modern structural systems. Known for their flexibility, strength, and ease of installation, they are widely used in handrails, safety barriers, shelving, greenhouses, and industrial frameworks.
This complete guide will help you understand everything about tube clamp fittings, including types, applications, materials, technical specifications, and how to choose the right solution for your project.
Tube clamp fittings (also called pipe clamps or handrail fittings) are connectors designed to join tubes or pipes without welding. They are typically fixed using set screws, making them:
Easy to install
Adjustable
Reusable
Cost-effective
They are commonly used with galvanized steel pipes, but can also work with aluminum or stainless steel tubes.
No specialized skills or equipment are needed—just basic tools like an Allen key.
Structures can be modified or expanded easily.
Designed to handle heavy loads in industrial and commercial environments.
Most fittings are hot-dip galvanized, making them suitable for outdoor use.
Tube clamp systems are used across many industries:
Safety handrails (factories, warehouses)
Guardrails & barriers
Shelving systems
Greenhouse structures
Playground equipment
Livestock fencing systems
Temporary structures and frames
Below are the most common types used in structural applications:
Connects two pipes at a right angle
Used in handrail corners
Connects three pipes
Common in frames and supports
Joins four pipes
Used in complex structures
Fixes pipe to floor or wall
Provides strong anchoring
Adjustable angle connection
Ideal for uneven or angled structures
Covers exposed pipe ends
Improves safety and appearance
| Pipe Size (OD) | Common Usage | Compatible Fitting Size |
|---|---|---|
| 21.3 mm | Light-duty | Size A |
| 26.9 mm | Medium-duty | Size B |
| 33.7 mm | Standard structures | Size C |
| 42.4 mm | Heavy-duty | Size D |
| 48.3 mm | Industrial | Size E |
Always match the fitting size with the outer diameter (OD) of the pipe.
Malleable cast iron (most common)
Ductile iron
Stainless steel (for high corrosion resistance)
Hot-dip galvanized (standard)
Powder coated (optional)
Electro-galvanized
Tensile strength: ≥ 330 MPa
Load capacity: varies by fitting type
Corrosion resistance: 5–20 years outdoor lifespan
Set screws (hex socket type)
High clamping force for stability
| Feature | Tube Clamp Fittings | Welding |
|---|---|---|
| Installation | Easy | Complex |
| Tools Required | Basic tools | Welding machine |
| Flexibility | Adjustable | Fixed |
| Cost | Lower | Higher |
| Maintenance | Easy | Difficult |
| Reusability | Yes | No |
Tube clamp systems are ideal for projects requiring flexibility and fast installation.
| Type | Price Range (USD) |
|---|---|
| Elbow fitting | $1.50 – $5.00 |
| Tee fitting | $2.00 – $6.00 |
| Base flange | $3.00 – $8.00 |
| Swivel fitting | $5.00 – $15.00 |
| End cap | $0.50 – $2.00 |
Prices vary depending on:
Material
Coating
Order quantity
Handrails → standard fittings
Heavy structures → reinforced fittings
Match fitting size to pipe OD.
Outdoor → hot-dip galvanized
Coastal → stainless steel recommended
Choose fittings with adequate strength ratings.
OMEJA CASTING is a professional manufacturer of high-quality tube clamp fittings, offering:
Precision casting technology
Strict quality control
Custom design solutions
Competitive pricing
Fast global delivery
Company: OMEJA CASTING
Phone: +86-15243599988
Email: whp@omj-casting.com
Cut pipes to required length
Insert pipe into fitting
Tighten set screw using Allen key
Check alignment
Secure structure
No welding, no drilling—fast and efficient.
They are used to connect pipes for structures like handrails, frames, and barriers without welding.
Yes, high-quality fittings can support heavy loads and are suitable for industrial use.
Yes, they can be disassembled and reused multiple times.
Hot-dip galvanized or stainless steel fittings are best for outdoor environments.
No, only basic tools like a hex key are required.
Tube clamp fittings are a versatile, cost-effective, and durable solution for modern construction and industrial applications. Whether you are building handrails, safety barriers, or modular structures, they offer unmatched flexibility and ease of use.
By choosing a reliable supplier like OMEJA CASTING, you can ensure high-quality products, long service life, and professional support for your projects.