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When a valve cannot be isolated and work is required downstream, or when searching for leaks during a hydrotest, nitrogen assisted freezing and viscous fluid sealing can be effective solutions. Our nitrogen assisted freezing uses closed chamber freeze isolation to ensure safety while temporarily quarantining the required section of pipe.

In the situation where a valve will not properly seal, and bypass is a concern, we have developed viscous fluid seal solutions to effectively address the issue. Applications include:

  • Water
  • Hydrocarbon
  • Methanol
  • Glycol