Regarding leaking FRP pipes, this is a common problem in the municipal, chemical, and water conservancy sectors. Below, I will analyze the causes and solutions in detail, highlighting the advantages of using pipe repair clamps.

1. Pipe Repair Clamp

Introduction: This is the most common and fastest repair method, especially for leaks on straight pipe sections. It consists of a two-piece or full-ring structure with an internal sealing ring. Bolted securely, it encloses the leak, quickly stopping the leak.

Applicable Applications: Holes of various sizes, cracks, circumferential or longitudinal cracks, and leaks from joints. Its greatest advantage is that it can be operated under water and pressure without stopping the pipeline.

2. FRP Composite Material Hand Lay-Up Repair

Introduction: This is a fundamental repair, similar to rebuilding a section of pipe. The surface of the leak is cleaned, fiberglass cloth is saturated with resin, and the adhesive is applied layer by layer to the leak area until the desired thickness and strength are achieved.

Applicable Applications: Larger damage requiring permanent structural restoration. Disadvantages include high technical requirements, the need for a dry environment, and the time required for curing, which typically requires stopping the pipeline.

3. Specialized Leak-Proofing Adhesive/Emergency Patching Agent
Introduction: There are several polymer-based patching agents available on the market (such as epoxy resins and underwater curing putties) that are suitable for wet surfaces and even cure underwater. These, like plasticine, can be applied directly to the leak site and cure quickly.
Suitable for: Very small pinholes and pinhole leaks, as a temporary emergency measure. Their effectiveness is limited for high pressure or large-scale damage.
4. Pipe Replacement
Introduction: If pipe damage is severe (such as extensive cracking or complete loss of pressure-bearing capacity), the most thorough solution is to remove the damaged section and replace it with a new section using flange or socket-jointed joints.
Suitable for: Severe damage that is unreliable with other methods.

Overall, for most emergency leak repairs, using "pipe repair clamps" is the most efficient and widely used option.

Benefits of Using Pipe Repair Clamps

Why are pipe repair clamps the preferred tool for repairing FRP pipes? Because it combines numerous advantages, it's perfectly suited for emergency repairs:

1. Fast and efficient, significantly reducing downtime
Pipe repair clamps are extremely easy to install, typically taking only a few minutes to half an hour. This is significantly faster than hand-placed patching (which requires hours to cure) or pipe replacement (which requires measuring, cutting, and installation). This is crucial for plants with continuous production or water/sewage systems that cannot be shut down.

2. Operates under pressure, eliminating the need to shut down the pipeline.
This is their most crucial advantage. Many industrial or municipal pipeline system outages can result in significant economic losses or social impact. Pipe repair clamps are designed to be installed directly at the leak site while under pressure, enabling "non-stop repairs" and avoiding the complexities of shutting down the pipeline, draining, and refilling.

3. Reliable sealing and strong pressure resistance
High-quality pipe repair clamps utilize high-quality rubber sealing strips (such as EPDM or NBR), high-strength bolts, and a robust housing (typically ductile iron or stainless steel) to provide uniform, high-pressure holding force, ensuring a tight seal. Their designed pressure resistance typically meets or even exceeds the operating pressure of the original pipeline.

4. Widely Adaptable and Suitable for a Wide Range of Applications
Pipe repair clamps are available in various sizes to cover pipes of varying diameters.
They can not only repair cracks and holes in the pipe body, but also specifically repair leaks at the "socket" end, a common leak point in FRP pipes.
The shape of the leak point is not critical; it can effectively cover round holes, cracks, or irregular breaks.
5. Easy to Use, No Special Skills Required
The installation process typically requires only common tools (such as wrenches) and does not require specialized FRP fabrication skills and experience like hand-stitching. Ordinary workers can operate with simple instructions, reducing reliance on manpower.
6. Safe and Environmentally Friendly
Quickly stopping leaks prevents the continued release of media (potentially sewage or chemicals), reducing environmental and soil contamination and eliminating safety hazards such as slips and corrosion caused by leaks.
7. Durable and Permanent
Although often used for emergency repairs, a qualified and properly installed pipe repair clamp has an extremely long service life and excellent corrosion resistance (especially when made of stainless steel), making it a permanent component of the pipe, eliminating the need for subsequent replacement.

How to Use a Pipe Repair Clamp (Simplified Steps):

1. Preparation: Release the pressure (if possible), clean the pipe surface around the leak, and remove any dirt and burrs.

2. Place the Sealing Strip: Align the included rubber sealing strip with the leak.

3. Install the Pipe Repair Clamp: Close the two halves of the pipe repair clamp to wrap around the pipe and sealing strip, aligning them with the bolt holes.

4. Tighten the Bolts: This is the critical step. All bolts must be tightened evenly and diagonally to ensure the clamp is evenly applied and holds the pipe tightly until the leak stops.

5. Inspection: Ensure there are no leaks, and the installation is complete.

The housing is typically made of metals such as ductile iron and carbon steel, which are corrosion-resistant and high-strength. It can last the same life as the original pipe, eliminating the need for frequent repairs. Baoshuo brand carbon steel half joints are available in a variety of rubber materials, including NBR, EPDM, FKM, and silicone rubber. The half joint body is available in Q235 carbon steel and 304 and 316L stainless steel.

The following are Baoshuo brand oil-resistant pipe repair clamps, high-temperature-resistant pipe repair clamps, acid- and alkali-resistant pipe repair clamps, stainless steel pipe repair clamps, high-pressure-resistant pipe repair clamps, and large-diameter pipe repair clamps.

Summary:

For sudden leaks in fiberglass pipes, pipe repair clamps are the preferred and optimal solution. They balance speed, reliability, cost-effectiveness, and convenience.

When purchasing, please pay attention to choosing specifications that fully match the outer diameter of your pipeline, and confirm whether its material (such as shell material, sealing ring material) can withstand the medium transported by the pipeline.