Repairs Leaks Near Flange Connections
The Flanged Pipe Repair Clamp fixes leaks on pipes near flanged ends. The area where a pipe meets a flange is a common failure point. Pipe stress concentrates at the flange root. Corrosion often attacks this area. Our clamp repairs these leaks without removing the flange and without shutting down the system.
This clamp has two sealing sections. One section seals against the flange face. The other section seals against the pipe body behind the flange. The housing has a sealing plate that presses against the flange end face. The pipe section wraps around the pipe body. Axial bolts pull the plate tight against the flange. Radial bolts tighten the pipe section. These two forces work together. They seal both the flange face and the pipe surface. The clamp leaves the flange bolts accessible for future maintenance.
We make this clamp in our 3,500 square meter factory. We have a full casting and machining production line. Our ISO 9001 certification covers quality management. Our inspection team checks every product for dimensions and pressure resistance. We accept third-party inspections. Clients are welcome to witness testing at our facility.

Saves Time on High-Value Equipment
A large pumping station had a flange root crack on its discharge pipe. The pump station supplies 40% of the city's water. Long shutdowns were impossible. The station used our Flanged Pipe Repair Clamp. They fixed the leak in two hours without stopping the pumps. This saved the city from a major water supply disruption.
The housing is QT450 ductile iron with epoxy coating. The bolts are 8.8 grade with anti-loosening washers. The EPDM gasket resists aging and ozone. We offer a 10-year warranty. Each clamp is custom-made based on your flange size and pipe diameter.

Specifications
|
Parameter |
Specification |
|
Application |
Flange root cracks and flange face leaks |
|
Working Pressure |
≤1.6 MPa |
|
Housing Material |
QT450 ductile iron |
|
Sealing Material |
EPDM rubber |
|
Bolt Grade |
8.8 high-strength steel with lock washers |
|
Surface Treatment |
Epoxy powder coating |
|
Diameter Range |
DN50 – DN400 (custom based on flange specs) |
|
Warranty |
10 years |
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