
At Seal Team we specialise in On-Line Leak Sealing, especially when it comes to flange joint repairs. Our seal repairs help companies to avoid production losses and unscheduled shutdowns, the expert leak sealing that we offer will ensure your flange joint leaks are repaired permanently. The online leak sealing of flanges offers a fast, efficient and cost-effective solution for leaks while ensuring safety, environmental performance, plant downtime and reduced costs.
Flange Joint Services
At Seal Team we provide our flange joint repair services to a range of industries including power plants, petrochemical and chemical industries, utility companies and other manufacturing industries, the repairs can also be carried out under full pressure and temperature.

Flange Joint Leak Repairs
Flange joint leaks happen when the material that is contained in the system, escapes through the gasket pores or around the gasket and the flange face. This will happen because the load on the gasket has fallen below the minimum seal pressure when it comes to preventing these leaks. At Seal Team we provide a full flange joint leak repair service, ensuring that joints are fixed in line with standards and are providing efficiently and effectively. At Seal Team, when it comes to leaking flange repairs, you can expect…
- Leak repair solutions while your facilities stay on-line
- No loss of output as there’s no requirement to halt production
- Saving time and money
- Maintain and increase plant safety
- Safety, efficiency, non-destructive and cost-efficient sealing of flanges
- Rapid response time, as well as a fully equipped and stocked team
- Repair materials of the highest quality
- 24/7 services and support
Contact Seal Team Systems
For more information on the services that we provide here at Seal Team Systems, call today.
How to stop a Leaking Flange Joint
Bolted flange joint leaks have always been an issue and repairs were never possible. Nowadays there’s new gasket materials and bolting techniques which that made vast improvements. However this issue is still happening, today’s standards state that a leak must be repaired if the leak rate is 550pm or above, this rate can never be lower depending on the process in the system and the varying state and local regulations.
Not only must the flange be leak-free at the installation, it’s essential that it also maintains a leak rate of 500ppm or below for a longer period of time. These standards run alongside the Environmental Protection Agency’s monitoring regulations on fugitive emissions. Flange joints encompass conventional ANSI pipe flanges, heat exchanger headers, tube sheet, sight gauges, manways, handhold, valve bonnets and almost any bolted gasket joint. If you have a leaking flange, our team at Seal Team can fix this issue with our injectable PTFE sealant.
Causes of Flange Leaks
Whether its an undetectable and slow process, or just a sudden and drastic failure, leaking flanges can cause severe problems for both operators and engineers. At Seal Team, we’ve taken a look at the three common reasons for industrial flange joints failing and what you can do to maximise the joints life.
Fastener Fails
Fasteners that aren’t tight enough to provide the most amount of industrial failures, whether they haven’t been made tight enough due to incorrect assembly, fastener failure or simply self loosening over time, fasteners can become a problem at any time. While it’s important that they’re tight, fasteners that are too tight can also cause similar problems, excessive loads may cause the gasket to crush or increasing fatigue on an already ageing asset. When it comes to bringing stress corrosion cracking into an industry that has integral pipelines, we don’t recommend this.
Gasket Fails
Gasket failing can be down several factors which include both mechanically and manually, mechanical deterioration over time and a gasket operating outside the original envelope will damage the structure over time if it’s installed correctly the gasket shouldn’t fail. Manual problems can cause problems in both the short and long term. If you choose the wrong gasket for the wrong application, with the wrong thickness, this can lead to immediate problems from the initial installation. Damage handling or storing a gasket can also affect efficiency.
Flange Fails
While warped flanges may be the result of a mechanical problem, most problems occur as part of a man-made error again. Flange surfaces can be damaged as a result of transportation and installation, this can lead to poor performance and potentially corrosion in the future.
Stopping the Flange Failure
When it comes to the flanges and potential problems that may occur, they’re all completely unique and it wouldn’t be in Seal Teams policy to provide advice to reduce the joint failure risks. At Seal Team we will provide bespoke support with joint failure, there are also tips that will help to minimise the joint failing…
- Use compatible components
- Follow storage and inspection recommendations
- Follow corrosion techniques
- Fatigue
Flange Gaskets
A flange gasket is a type of gasket that’s made to fit between two sections of pipe that are flared in order to provide a higher surface area. Flange gaskets come in a range of sizes and categorised by their inside diameter and their outside diameter, there’s a number of standards in gaskets for flanges of pipes. The flange gasket will create a static seal between the two flange faces, at different operating conditions with varied pressure and temperature ratings. As the gasket fills the microscopic spaces and the irregularities of the flange faces, it will then form a seal that’s designed to keep liquids and gases. Correct installation of a damage-free gasket and damage free flange is a requirement to ensure a leak-free flange connection.
For Flange Joint Services, Call Seal Team Systems Today
Should you require immediate flange joint leak repair services, make sure you contact Seal Team today. We repair and seal leaks all around the UK including leaking flange joints, for an efficient and effective repair service, give our team of professional sealers a call today.
We also offer a range of other services, including hot tapping, 90 degree elbows, gland packing, and more! Do you want to know more about the benefits of the services we offer? Check out our blog now!



