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Metalsin’s 90°-elbow repair clamp for steel pipes is a high-performance solution specifically engineered for the rapid containment of leaks at threaded 90-degree junctions in small-diameter (up to DN100) galvanized steel pipe systems. These pipelines commonly utilize malleable iron elbows with BS 21 internal threads to facilitate right-angle directional changes. Our clamp features a robust ductile iron “wrap-around” design that fully encapsulates the leaking 90° elbow, allowing for a permanent seal while the system remains under pressure. By eliminating the need for costly service interruptions or the labor-intensive replacement of threaded fittings, Metalsin provides a time-saving and reliable maintenance tool for municipal water supply and drainage networks.

Ductile iron 90°-elbow repair clamp and its use with steel pipes.
| Component | Material Grade |
|---|---|
| Body | EN-GJS-450-10 QT450-10 ASTM A536 65-45-12 |
| Sealing Gaskets | ASTM D2000 & ISO 4633 EPDM/NBR |
| Bolts | Carbon Steel Gr. 8.8 ASTM A193 Gr.B8 |
| Nuts | Carbon Steel Gr. 8 ASTM A194 Gr.8 |
| Vent Plug | Malleable Iron |

Technical drawing of 90°-elbow repair clamp for steel pipes.
| DN | O.D mm | D mm | L1 mm |
|---|---|---|---|
| 15 | 21.3 | 39 | 63.5 |
| 20 | 26.8 | 45 | 67.5 |
| 25 | 33.4 | 51 | 71.5 |
| 32 | 42.2 | 63 | 78.5 |
| 40 | 48.3 | 71 | 84.5 |
| 50 | 60.3 | 84 | 92.5 |
| 65 | 76.1 | 101 | 104.5 |
| 80 | 88.9 | 116 | 126 |
| 100 | 114.3 | 145 | 144 |