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Underground Water Control

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Leaking Valve Sealed with Grout

By Chris on 12-08-2020

A municipality needed to seal off a leaking water main valve in order to decommission the system.  They decided injecting polyurethane grout into the valve would be their best option in this situation.  Although this is not a common application, it will provide the desired outcome.  A hole was drilled directly into the valve body and an injection packer was inserted.  Hyperflex, the NSF-61 approved polyurethane grout, was then injected.  The Hyperflex migrated throughout the valve and sealed off the leaks.