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Series LF909 Large prevents the reverse flow of liquids in a plumbing system due to backpressure or backsiphonage where there is a potential health hazard. An exclusive relief valve design provides substantially improved relief valve discharge performance during emergency conditions of combined backsiphonage and backpressure. The seats are replaceable for economical repair. Large diameter 2 1/2 to 10 inch sizes.

Series LF909 is also available with SentryPlus™ Alert technology to detect catastrophic relief valve discharge that could potentially cause flooding, and issue a multi-channel alert (call, email, text) to selected users so they can take action to avoid potentially costly flooding.


Features

  • Health hazard protection level
  • Exclusive relief valve design provides maximum capacity during emergency conditions
  • Industrial strength sensing hose on larger size models
  • Available with SentryPlus Alert™ Technology for flood detection alert capabilities
  • Can be used in a variety of installations, including containment at the service line entrance
  • No special tools required for servicing

3 Products