Bell-Joint Repair Clamp for Concrete Pipes

Product Overview

Metalsin’s bell joint repair clamp for concrete pipes is a high-performance solution specifically engineered for sealing leaks at the socket-and-spigot joints of large-diameter concrete pipelines. These pipes, often manufactured to international standards such as ASTM C14/C76/C118, EN 1916, and GB/T 11836, are critical components of municipal water supply and sewage networks. When a joint leak occurs, this repair clamp provides an effective “wrap-around” technology that allows for a permanent, live repair under pressure, eliminating the need for costly system shutdowns or the complex replacement of heavy concrete sections.

The ductile iron bell-joint repair clamp for concrete pipes.

The bell-joint repair clamp assembly features a robust, two-piece ductile iron body, precision-engineered rubber gaskets, high-strength fasteners, and a malleable iron vent plug to ensure a perfect seal. By fully encapsulating the bell joint, the repair clamp creates a reliable high-pressure barrier through radial compression. Metalsin’s design focuses on ease of installation and long-term durability, providing a cost-effective maintenance tool that preserves the structural integrity of large-scale concrete infrastructure.

Case Study: Application of a bell-joint repair clamp at a leakage point on a DN2000 concrete pipe, located at the bell-and-spigot joint. The concrete pipeline serves as a municipal main water-supply line and is a critical lifeline for the city.

Drawing, Sizes & Dimensions

Technical drawing of the bell-joint repair clamp for concrete pipes.