Specifications include, but are not limited to: SOLID REPAIR SLEEVES: − Center ring and end rings shall be Class 52 ductile iron − Nuts and bolts shall be manufactured from corrosion-resistant, high-strength, low-alloy steel in accordance with ANSI/AWWA C111/A21.11 that has a baked-on ceramic-filled fluorocarbon resin, which handles the needs of highly corrosive conditions. − The sleeve and gaskets shall be compatible with varying outside diameters of cast iron pipe o Referenced O.D. Range is approximate; furnish intended range for cast iron pipe O.D. o Referenced lay length and bolt quantities may vary between approved manufacturers. − Furnish sleeves with conductive-tip armored gaskets intended to establish conductivity through the sleeve. − Acceptable models: o Ford FCI Flex Coupling, for matching outside diameters, per nominal pipe size. o Ford FC2A Flex Coupling, for dissimilar outside diameters, per nominal pipe size. o Rockwell 441. o Powerseal 3501. o Hymax Grip Restraint Coupling. o Romac Alpha Restraint Coupling. o Total Pipe Solutions – Ultra Sleeve Wide Range Joint Repair
