Gibault joints pipe fitting Material of Construction 1) End Rings - Ductile Iron to BS2789 Grade 420/12, 500/7 2) Sleeves - Ductile Iron to BS2789 Grade 420/12, 500/7 3) Coating - Fusion Bonded Epoxy to SABS 1217, minimum thickness 250 microns, colors in RAL5005, RAL5015, RAL3009, RAL9005, RAL9011 or others. Bolts - Steel to BS970 Grade 070M20, Carbon steel Grade 8.8, SS304 or SS316 Bolts available upon requests. Bolt coating Galvanized Rubber Seal - E. P. D. M. Grade E to BS2494 1990 Type W&D
