The Reliable Fix for Aging Cast Iron Mains
The Cast Iron Pipe Repair Clamp is our main solution for ductile and gray cast iron pipe leaks. These pipes are the oldest in many city networks – joints loosen, bodies rust through. This clamp repairs them without stopping water service, making it essential for utilities managing aged systems.
The housing is QT450 ductile iron – strong and tough. The EPDM gasket resists aging and ozone for long buried service. Install by placing the halves over the leak and tightening bolts. The gasket presses against the pipe wall, creating both radial and end-face seals. Once installed, it becomes part of the pipe and handles normal operating pressure.
We invest 5% of annual sales in R&D and hold over ten patents. Our products are tested by the Shanghai Institute of Quality Inspection and meet GB/T 13927-2008 standards. This commitment to quality ensures every clamp delivers reliable performance.
Proven in Large-Scale City Networks
A provincial capital water group bought more than 5,000 of our clamps over three years for old cast iron mains inside the Second Ring Road. Their data shows repair time dropped by 70% and overall costs fell by over 60% compared to traditional replacement.
We offer full service: pre-sales selection, installation guidance, and follow-up support. We accept third-party inspections and package in cartons to prevent shipping damage. Every clamp comes with a 10-year warranty – giving you long-term confidence from purchase through years of service.
Technical Parameters
|
Parameter |
Specification |
|
Applicable Pipe Materials |
Ductile iron, gray cast iron |
|
Working Pressure |
≤1.6 MPa |
|
Housing Material |
QT450 ductile iron |
|
Sealing Material |
EPDM rubber |
|
Bolt Grade |
8.8 high-strength steel |
|
Surface Treatment |
Epoxy powder coating |
|
Diameter Range |
DN15 – DN800 (non-standard available) |
|
Warranty |
10 years |
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