How to stop leakage in pressurized pipeline systems?

In modern industrial operations, maintaining continuous production is essential. Online leak sealing (also known as leak repair under pressure) is a highly effective technology that allows for the safe repair of leaking pipelines and equipment without halting production. This technique applies to a wide range of components, such as pipelines, valves, flanges, and elbows, offering reliable sealing solutions for various leak scenarios.

Below are some of the most common online leak sealing methods used in the industry:

1.Sealant Injection Method

The sealant injection technique involves using an injection valve and a sealant pump to inject sealing compound directly into the leak site. This method is commonly used for pipelines, flanges, and valves. It offers a quick, safe, and long-lasting sealing effect without interrupting production.

Key Advantages:

Easy operation

Wide applicability

High sealing reliability

Long-term effectiveness

Online leak sealing

2.Steel Band Tension Sealing

This method uses steel bands and clamping tools to wrap and tighten around the leaking area. The external pressure created by the steel band helps contain the leakage effectively.

Best For: Pipelines, flanges, valves, and irregular joints

Benefits:

Quick installation

No need to shut down the system

Cost-effective for short-term or emergency sealing

3.Magnetic Compression Sealing

Magnetic leak sealing uses magnetic fields to act on ferromagnetic materials, helping the sealing compound adhere or solidify around the leak area. This method is particularly effective for iron-based pipelines and valves.

Advantages:

Non-intrusive and safe

Simple to apply

Effective for specific metal structures

4.Adhesive Sealing (Paste Method)

This technique uses adhesives or sealant compounds to directly cover the leak point. The success of this method depends on selecting the appropriate adhesive based on the chemical properties and temperature of the leaking medium.

Use Cases: Suitable for minor leaks on flanges, pipes, or valve housings

Highlights:

Quick and convenient

Low-cost and effective

Ideal for low-pressure applications

5.Clamp-On Leak Sealing

Clamp-type sealing uses custom-made clamps, sealing plates, or enclosures that are fitted around the leak point. Sealant or gaskets are injected or placed inside the clamp to form a pressure-tight seal.

Application Range:

Works on high-pressure and large-diameter pipes

Suitable for irregular shapes and corrosion-damaged surfaces

Benefits:

Durable and safe

Excellent for temporary or long-term sealing

Online leak sealing is a critical technology in maintaining the safety, efficiency, and reliability of pipeline systems. By choosing the right method based on the leak location, media type, and system conditions, industrial facilities can minimize downtime, protect assets, and ensure environmental safety.

Haihao Group has decades of experience in pipeline solutions and offers all kinds of pipefitting products, combining advanced techniques and professional support to meet various industry needs. Email:sales@haihaogroup.com