General description Light Duty Flame Retardant Anti-Vibration Rubber Lined U-bolt designed for 115 mm ID pipes, suitable for 100 NB pipes. This U-bolt features a flame retardant rubber lining that helps reduce noise and fatigue caused by vibration, while also preventing galvanic corrosion and wear on pipework. Technical specifications Material: Zinc Plated Mild Steel Rubber Lining: Railway Grade Silicone 80sh Pipe O/D: 114.3 mm Dimensions: NB: 100 mm B: 70.5 mm C: 83 mm F: 110 mm G (Thread Size): 12 mm K: 75 mm X: 115 mm D*A (Backing Pad): 25*10 mm Tolerance on dimensions: +/- 1 mm Material Finish: Zinc Plated Mild Steel Other information Flame Retardant rubber properties: Postcured for minimum 4 hours at 200°C Shore A: 80 Tensile: 10.0 N/mm² Elongation: 420% Tear B: 26 N/mm Specific Gravity: 1.22 Constant working temperature: -40°C to +200°C Smoke Density: 0.005 m²/g Flammability Temperature Index: 352°C Toxic Flame Emission: 0.12 Dielectric Strength (2 mm thickness): approx 24 KV/mm