Stainless Steel Triple Repair Clamp Multi/Clamp L=500mm

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The Georg Fischer Multi/Clamp Triple repair clamp with a width of L=500mm is engineered for the permanent and heavy-duty repair of extensive pipe damage on large-diameter utility and industrial piping systems. Built with a robust three-section shell, this triple-band assembly provides an expansive tolerance band spanning outer diameters from 352 mm up to 684 mm. It delivers structural containment and reliable pressure sealing for severe pipeline defects, including longitudinal splits, circumferential cracks, shear breaks, and localized corrosion perforations on water and gas distribution mains.

Manufactured from premium AISI 304 (1.4301) stainless steel, every structural component—including the shells, bridge plates, and tightening lugs—undergoes complete passivation in a dedicated stainless steel processing environment to prevent contact corrosion and guarantee long-term operational resilience in buried and aboveground environments. The automated robotic welding of the lugs ensures uniform load transfer across all tightening bolts, allowing installer teams to achieve continuous radial compression along the entire 500 mm clamp length without deforming the pipe body.

Sealing integrity is maintained via a bonded full-circle NBR waffle gasket complying with EN 682 standards, rated for operational temperatures from -10 degrees to +70 degrees Celsius in water, wastewater, and natural gas conveyance. The specialized waffle profile compensates for surface irregularities, ovality, and rough pipe walls while accommodating operating pressures up to PN 10 bar (depending on nominal diameter and pipe material). The clamp exhibits multi-material compatibility, sealing effectively against ductile iron, cast iron, steel, asbestos cement, and thermoplastic pipes such as PEHD and PVC-U.