• Size Range: 
    4"- 36"
  • Pipe and Flange Material: 
    Ductile Iron
  • Lining Options:
    Cement Lining (standard or double thickness), Protecto 401®, others as required
  • Coating Options: 
    Asphaltic Coating, Zinc, Bare
  • Deflection: 
    5° (4"-12"), 3.25° (14"-16"), 3° (18"), 2.5° (20"), 2.5° (20"-24"), 1.75° (30"), 1.5° (36")
  • Pressure Rating: 
    350psi (4"-24"), 250psi (30"-36")
  • Pipe Class:
    Special Thickness Class and Pressure Class avaialbles
  • Applicable Standards:
    Thickness Design of DIP - ANSI/AWWA C150/A21.50 Ductile Iron Pipe for Water & Other Liquids - ANSI/AWWA C151/A21.51 Cement Lining - ANSI/AWWA C104/A21.4 Gasketed Joints - ANSI/AWWA C111/A21.11
  • Testing:
    Per ANSI/AWWA C151/A21.51

Features & Benefits

Simply put, the most widely accepted and installed integrally-cast restraint joint system in the Ductile iron pipe industry. Proven as a versatile and easy-to-use item, this joint is flexible, sure, and watertight to and beyond its 350-psi pressure rating while preventing longitudinal separation of the joints whether installed above or below ground. TR Flex® utilizes the Tyton® Joint gasket for a watertight seal along with a factory-adapted spigot and extended bell casting to provide positive and permanent joint restraint.