Pipe Repair Clamp
A pipe repair clamp is a temporary or permanent repair solution for damaged pipes, designed to provide a quick and effective means of repairing leaks, cracks, holes, or other damage in pipes. Pipe repair clamps are typically made of metal and have a rubber gasket that wraps around the damaged area of the pipe and is tightened with bolts to create a seal, stopping the flow of water ,other fluids or gas. They are used in a wide range of applications, including residential, commercial, industrial, and municipal settings.
we are a professional repair clamp manufacturer from China with 32 years experience. our repair clamps are always made with the highest quality materials and craftsmanship, ensuring they are durable and reliable. with our different design options, you can find the perfect repair clamp for your needs. below are our repair clamps
High Pressure Pipe Repair Clamp
Stainless Steel Repair Clamp
Ductile iron repair clamp
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Why judberd repair clamp?
- We Have Our Own Professional R&D Team And Training&Test Sites.We Can Design Repair Clamp According To Client Requirement, And Test By Ourselves On Our Own Test Site.
- We Have Repair Clamp For High And Low Pressure(Judberd’s Repair Clamp Can Offer Max. Pressure Is 140bar) , High And Low Temperature ,Straight Pipe And Bends, We Also Have Bell Joint Repair Clamp For Socket Ends and spigot ends connection Of Pipes.
- We Have 30 Years Experience For Repair Clamp
- We Can Offer Repair Clamp In Stainless Steel Material, Carbon Steel Material Or Ductile Iron Material According To Client Requirement.
Repair Clamp Parts
Below is take popular stainless steel repair clamp for an example.
Pipe repair clamp usually consists of the following parts:
Clamp Body（Fig No.1) Mainly made of metal materials (such as stainless steel), it is used to wrap and repair the damaged part of the pipe.
Sealing Gasket(Fig No.2) Usually made of rubber or other elastic materials, it is placed between the clamp body and the pipe to ensure sealing and prevent leakage.
Bolts and Nuts（Fig No.3) Used to fix the two parts of the clamp body. Tighten the bolts and nuts to compress the seal gasket and achieve the sealing and repair of the pipe.
Reinforcing Plates(Fig No.4)Some designs have additional reinforcing plates to increase the strength and stability of the clamp body to ensure long-term repair.
Alignment Guides(Fig No.5) Help to keep the clamp body aligned with the pipe during installation for better fixation and sealing.
Junction and locking plate( Fig No.6&7) When tightening the bolts to secure the clamp body, the matching parts that play the role of connection and tightening.
These parts work together to ensure that the pipe can be used normally after repair, preventing leakage and further damage.
Repair Clamp Working Principle
Pipe repair clamps are mainly used to repair leaks or damage on pipes. The working principle is as follows:
Position and prepare: First, place the pipe repair clamp at the location on the pipe that needs to be repaired. Make sure the pipe surface is clean, free of oil, and that the size of the repair clamp fits the diameter of the pipe.
Wrap the pipe: Wrap the repair clamp around the damage on the pipe. Typically, the repair clamp consists of two halves that can be wrapped around the top and bottom sides of the pipe.
Fasten the bolts: Use bolts（as Fig No.1) to fasten the two halves of the repair clamp together. As the bolts are tightened, the repair clamp will gradually tighten and press onto the pipe(Fig No.2).
Create a seal: The inside of the repair clamp typically has a rubber seal(Fig No.3). When the clamp is tightened, the rubber seal will compress, creating a seal between the pipe and the repair clamp. This seal can effectively prevent leaking fluid from escaping.
Inspect and adjust: Finally, inspect to make sure the repair clamp is securely installed and that there are no leaks. If necessary, further adjust the tightness of the bolts to ensure a complete seal.
In this manner, pipe repair clamps can quickly and effectively repair damage on pipes, preventing larger leaks and losses.
Repair Clamp Use
Pipe repair clamps have a wide range of applications, mainly used to repair various types of pipes. Here are some typical applications and types of pipes that can be repaired:
Applications
Emergency repair: Used to quickly repair pipe leaks caused by corrosion, mechanical damage, or other reasons, especially suitable for temporary repairs in emergency situations.
Water supply systems: Used to repair leaking pipes in municipal water supply pipelines to ensure the normal operation of water supply systems.
Drainage systems: Used to repair cracks or damage in drainage pipes to prevent sewage leaks and protect the environment.
Industrial pipelines: Used in chemical, petroleum, natural gas, and other industrial pipelines to repair leaks caused by corrosion or mechanical damage, ensuring the continuity and safety of production.
Home repairs: In home water pipes, drainage pipes, and other systems, repair pipes that have aged or been accidentally damaged.
Types of Pipes that Can Be Repaired
Metal pipes: Such as carbon steel pipes, stainless steel pipes, copper pipes, cast iron pipes, etc. Repair clamps can effectively repair cracks and damage in these materials.
Plastic pipes: Such as PVC pipes, PE pipes, PP pipes, etc. Repair clamps are also suitable for pipes made of these non-metal materials.
Composite pipes: Such as FRP pipes, composite plastic pipes, etc. Repair clamps can be used to repair leaks in these materials.
Pipes of different diameters: Repair clamps usually come in various specifications and can be used for pipes of different diameters, whether small or large.
High-pressure pipes: Some specially designed repair clamps can be used for high-pressure pipes to ensure sealing under high-pressure conditions.
In conclusion, pipe repair clamps, due to their convenience, fast application, and wide range of applications, have become a common tool for various pipe repair works.
Repair Clamp installation
Here are the steps to install a pipe repair clamp:
Preparation:
Identify the leak: Find the leak or area that needs to be repaired on the pipe.
Shut off the pipe: If possible, turn off the water or gas supply to the pipe to reduce pressure.
Clean the surface: Use a brush or sandpaper to clean the dirt, rust, and grease around the leak to ensure a clean and smooth surface.
Installation Steps:
Measure and select: Measure the outside diameter of the pipe and select the appropriate size pipe repair clamp.
Prepare the repair clamp: Prepare the components of the pipe repair clamp, which typically include a clamp body and fastening bolts.
Place the repair clamp: Align the gasket of the repair clamp with the leak to ensure that the gasket covers the leak.It is best to avoid the overlap of the sealing rubber with the leak location of the pipeline.
Wrap the pipe: Align the two halves of the repair clamp at the location of the leak and wrap them around the pipe.
Install the bolts: Insert the bolts and hand tighten, ensuring that the two halves of the clamp are aligned.
Tighten the bolts: Use a wrench or socket wrench to gradually and evenly tighten the bolts until the repair clamp is snug against the pipe and the gasket is fully compressed.
Check the seal: Turn the water or gas supply back on and check for any leaks from the repair clamp. If there are leaks, further tighten the bolts until there are no leaks.
Notes:
Avoid overtightening during installation to prevent damage to the pipe or repair clamp.
For high-pressure pipes or pipes made of special materials, consult a professional or the manufacturer for installation guidance.
After installation, regularly inspect the condition of the repair clamp to ensure it is safe and reliable for long-term use.
I hope these steps help you install the pipe repair clamp. If you have any questions or need further assistance, please feel free to contact me.
Repair Clamp Types
Depending on the different designs and applications, pipe repair clamps can be divided into the following main types:
Purpose: Used to repair small holes and cracks on pipes, suitable for pipes of various materials.
Features: The clamp body completely wraps around the pipe, providing comprehensive sealing and support.
Half Circle Clamp:
Purpose: Used for patching leaks or cracks in a local area, usually for smaller repair needs.
Features: Cover part of the pipe, easy and quick to install.
Bell Joint Clamp:
Purpose: Used to repair leaks at pipe joints, especially for repairing bell joints.
Features: Specially designed to fit the shape of the pipe joint, providing effective sealing.
Saddle Clamp:
Purpose: Used to connect branch pipes after piercing the pipe or repair local damage to the pipe.
Features: Shaped like a saddle, wrapping above the pipe and secured with bolts.
Tapping Clamp:
Purpose: Used to tap holes in the pipe and connect new branch pipes, usually for water and gas pipes extensions.
Features: Equipped with a tapping device for easy tapping during installation.
Double Band Repair Clamp:
Purpose: Used for larger pipe repairs, suitable for larger cracks and damage.
Features: Double band design provides stronger fixing and sealing.
Quick Repair Clamp:
Purpose: Used for emergency repairs of pipe leaks, suitable for pipes of various materials.
Features: Quick and easy to install, usually no professional tools are needed.
Stainless Steel Repair Clamp:
Purpose: Used for pipe repairs in highly corrosive environments such as chemical plants and marine environments.
Features: Made of stainless steel material, excellent corrosion resistance and strength.
By choosing the appropriate type of pipe repair clamp based on the specific application and pipe condition, these different types of pipe repair clamps can effectively address pipe leaks and damage problems, ensuring the normal operation of the pipe system.
Repair Clamp Dimension and Drawing
Pipe repair clamps have several critical dimensions that ensure their proper fit and function. The key dimensions typically include:
- Pipe Diameter: The inner diameter of the clamp must match the outer diameter of the pipe to ensure a proper fit.
- Clamp Width: The width of the clamp must be sufficient to cover the damaged area and provide adequate sealing.
- Gasket Thickness: The gasket must be thick enough to seal the leak but not so thick that it prevents the clamp from properly tightening around the pipe.
- Clamp Length: The length of the clamp should be long enough to span the damaged area and allow for secure attachment.
- Bolt Length and Diameter: The bolts used to tighten the clamp must be of sufficient length and diameter to provide adequate clamping force without stripping or breaking.
- Overall Clamp Thickness: The overall thickness of the clamp should be such that it provides the necessary strength without being overly bulky.
Stainless steel repair clamp with DCI jaw drawing
Steel repair clamp drawing
Carbon Steel repair clamp drawing
Repair Clamp Material
A Pipe Repair Clamp is a device used to repair or connect pipes and is suitable for various pipe systems according to different materials and design characteristics. Here are some common materials and their applications:
- Ductile Iron
Properties: High strength, good toughness and corrosion resistance.
Applications: Mainly used for water pipes, especially large diameter or high-pressure water pipe systems. The strength and durability of ductile iron make it suitable for use in situations where high pressure-bearing capacity and long-term reliability are required. - Stainless Steel
Properties: Excellent high pressure resistance, corrosion resistance and heat resistance.
Applications: Suitable for water pipes, chemical pipes, food and beverage processing pipes, pharmaceutical pipes, and other pipe systems that require high hygiene standards or corrosion resistance. Stainless steel is particularly suitable for repairing pipes that handle corrosive liquids or gases. - Carbon Steel
Properties: High strength, relatively low cost.
Applications: Widely used in oil and gas pipelines, heating and cooling systems. Carbon steel is suitable for pipe systems require durability, but it is relatively easy to rust, so more treatment is required for external protection. - Copper
Properties: Good thermal conductivity, strong antibacterial properties.
Applications: Suitable for home water supply systems and refrigeration systems. Because copper has good thermal conductivity and antibacterial properties, it is an ideal choice for repairing small diameter pipes (such as household water supply pipes). - Polymer Composites
Properties: Light weight, chemical corrosion resistance.
Applications: Used for repairing pipes containing corrosive chemicals and in marine environments. The corrosion resistance and light weight of polymer composites make them suitable for use in environments where easy installation and low maintenance are required. - Aluminum Alloy
Properties: Light weight, good corrosion resistance.
Applications: Commonly used in pipe repair situations that require lightweight designs, such as aircraft and vehicle pipe systems. Aluminum alloy is suitable for mobile devices or systems that need to be dismantled frequently because of its lightweight and durability.
Key Factors in Material Selection
Pipeline Transport Medium: Determining the nature of the fluid inside the pipeline (such as corrosiveness, temperature, pressure) is key to selecting the appropriate material.
Environmental Conditions: The environment in which the pipeline is located (such as marine, industrial, residential) will also influence material selection.
Urgency and Duration of Repair: Certain materials (such as polymer composites) may be better suited for quick and temporary repairs, while metal materials may be better suited for longer-term repairs.
Conclusion
Different materials of Pipe Repair Clamps have their own advantages and disadvantages, and the most suitable material should be selected based on the actual use and environmental conditions of the pipe to ensure optimal performance and cost-effectiveness.
If you have specific applications or pipe systems, provide more details, and we can further discuss the best solution.
Repair Clamp Standard
The design of Pipe Repair Clamps needs to comply with a series of standards and specifications to ensure their safety, reliability, and effectiveness in different pipe systems. Here are some common design standards and specifications:
ASME (American Society of Mechanical Engineers) Standards
ASME B31: Pressure Piping Design Standard, covering piping systems transporting various fluids.
ASME Section VIII: Involving the design and manufacturing requirements for pressure vessels and related components, applicable to high-pressure pipe repair clamps.
ASTM (American Society for Testing and Materials) Standards
ASTM F1476: Standard for the design and manufacture of pipe repair clamps, covering the structural, material, and performance requirements of repair clamps.
EN (European Standards)
EN 545: Standard for ductile iron pipes and their fittings, applicable to pipe systems for water supply and other liquids.
AWWA (American Water Works Association) Standards
AWWA C223: Standard for pipe repair clamps, specifying the requirements for repair clamps used in drinking water systems.
AWWA C219: Standard for joints and repair clamps, applicable to water supply and wastewater pipe systems.
ANSI (American National Standards Institute) Standards
ANSI/AWWA C203: Standard for anti-corrosion coatings related to steel pipe and fittings, applicable to repair clamps requiring anti-corrosion treatment.
MSS (Manufacturers Standardization Society) Standards
MSS SP-75: Standard for high-pressure fittings, applicable to repair clamps in high-pressure pipe systems.
RFQ
How to inspect repair clamp?
- Mill Test Certificate Should Be Issued By Factory To Show The Material
- Dimension Test Should Be Performed According To Client Requirement
- Pressure Test Should Be Done, Test Pressure Should Be 1.5 Times Of Working Pressure
- Visual Inspection Should Be Done, All Surface Should Be Free From Defects, Oil Stains, Tears Etc.
- The FBE Coating Thickness Should Be Inspected And Should Be No Less Than 250um Unless Other Specified
- Other Requirement From Client Should Be Inspected Accordingly, Inspection Certificate Should Be Signed And Stamped
How to choose repair clamp?
Select A Repair Clamp With A Range That Encompasses The Outside Diameter Of The Pipe
The Length Of The Repair Clamp Should Be Greater Than The Length Of The Breach To Be Repaired. If The Outside Diameter Of The Pipe Is ≤ 300mm, The Length Of The Repair Clamp Should Be At Least 80mm Longer Than The Length Of The Breach, If The Outside Diameter Of The Pipe Is ≥ 300mm, The Length Of The Repair Clamp Should Be At Least 100mm Longer Than The Length Of The Breach.
According To The Size Of The Outer Diameter Of The Pipe To Determine Whether To Use A Single, Double Or Multi-Bands Repair Clamp, If The Pipe Size ≤ DN250, We Recommend Using A Single Band Repair Clamp. If The DN Is Larger Than DN250, We Recommend Using A Double Bands Repair Clamp. If The DN Is Larger Than DN500, We Recommend To Use Triple Bands Repair Clamp. And So On.
Are repair clamps permanent?
Although repair clamps can have a long service life, it is best to replace perforated, damaged or poorly installed pipes in order to improve the safety and service life of the entire pipeline. This is especially important in high-pressure pipelines, where even a small leak can pose a serious safety hazard.
What are bell joint repair clamp used for?
Bell joint repair clamps are used for leaky or damaged socket and spigot joints. These clamps surround the entire circumference of the pipe, providing a 360-degree seal. They are easy to install and require no special tools or training. In addition, they can be used on pipes of different sizes without having to replace the entire pipe.
How do you use a repair clamp?
If you assemble the repair clamp for pressure-free or low pressure pipes, the assembling steps as below
First, identify the location of the leak and then shut off the water supply. Next, clean the area around the leak so that it is free of debris. Then, assemble the repair clamp around the pipe, making sure to align it with the leak. Finally, tighten the bolts and nuts until the water is stopped.
If you assemble the repair clamp for high pressure repair clamp, the assembling steps as below.
If the pressure is big, it is better to assemble the repair clamp next to the water leakage point and then move it to the leakage point.Finally, tighten the bolts and nuts until the water stops.
If the width of the leak is greater than 5mm, a support sheet of more than 30mm in length and more than width of the crack is required.
Elbow repair clamp
There are two types of elbow repair clamps: one for normal temperate water, and the other for thermal pipe. The material for the former is stainless steel while the latter requires high temperature resistant rubber mat due to the higher temperature of the water. Additionally, the body material for the latter is ductile iron.
Judberd elbow repair clamps can be used to repair leakage on elbow both in normal temperate water and high temperature water.
Repair clamp for hot water
If you have a hot water pipeline that needs repair, you’ll want to use a special repair clamp that’s designed for heat resistance. This type of clamp will provide a secure and reliable seal that won’t be compromised by high temperatures. For hot water pipeline,we have special repair clamp which is with Heat resistant rubber.
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