Weld-Free Repairs for Steel Pipelines
The Steel Repair Clamp is built for leak repairs on steel pipes without hot work. Steel pipelines are common in city water systems and industrial cooling loops, but they rust and crack over time. This clamp stops leaks while water keeps flowing – no welding, no fire risk.
The two-piece housing is made of QT450 ductile iron with an EPDM gasket inside. Place the halves around the leak and tighten the 8.8-grade bolts. One worker can finish in under 20 minutes without special skills.
Our factory has full production lines for casting, machining, spraying, and assembly. Every clamp undergoes a 2.4 MPa hydrostatic test to check for leakage or structural damage. We hold ISO 9001 and a health permit for drinking water systems, so this clamp is safe for potable water networks.
Designed Specifically for Steel Pipe Surfaces
Steel pipes often have weld seams, zinc coatings, or anti-corrosion layers. Our gasket hardness is carefully chosen – it seals effectively but does not damage the protective coating. The ductile iron housing matches steel pipe strength and avoids galvanic corrosion.
The epoxy coating provides excellent corrosion resistance and scratch protection. The EPDM gasket lasts over 10 years without aging. Three-slope sealing gives a larger contact area. Grade 8.8 bolts resist rust and stay removable even after long burial, making future maintenance easier.
A large steel plant used our clamp to repair over 200 cooling water leaks in one year – each fix took under 30 minutes and saved millions in production losses. This real case shows how well it performs under tough conditions.
Technical Parameters
|
Parameter |
Specification |
|
Applicable Pipe Materials |
Steel (seamless, spiral welded, galvanized) |
|
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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