Nitrile Waterstop

nitrile-waterstop manhole connector

Nitrile Waterstop stops soil and water infiltration through pipe-to-structure penetrations when a flexible connector conforming to ASTM C 923 cannot be used. A Nitrile Waterstop is used when there is concern about the connector coming into contact with petroleum based compounds or solvent based compounds.

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Features and Benefits

  • Specially developed synthetic nitrile rubber is continuously tested and lab-certified to ASTM C 1619 CLASS D.
  • Provides better seal than mortar joint alone.
  • Can be used with existing structures, new precast structures, or new poured-in-place structures.
  • Easily adapts to field conditions.
  • Prevents infiltration/exfiltration between pipe and grout.

How It Works

  • Used when there is concern about petro or solvent based compounds coming in contact with the gasket.
  • Stainless steel clamps secure the Nitrile Waterstop to the pipe.
  • Hole size required is 4” to 6” larger than the pipe OD.
  • The rubber component is placed within the structure wall and with the clamp placed straight across the confinement area.
  • The pipe is placed in position and grouted in place using non-shrink patching compound or;
  • The pipe is placed in position in the formwork and the structure is poured around it.
  • After the mortar or concrete has set, the structure can be backfilled.

This nitrile connector meets or exceeds:

  • ASTM C 923
  • ASTM C 443 (Oil Resistance)
  • ASTM C-1619 CLASS D
  • ASTM C 1478
  • ASTM F 2510