As system pressure falls sufficiently below atmospheric pressure to compress the spring, the vacuum breaker will open, allowing air to enter the system. The vacuum breaker is factory set to open at approximately 2 inches Hg vacuum. It is adjustable from 1/4” to 20” (8 - 508 mm) Hg vacuum.
Items to be returned must be approved by Power Plus International, Inc. DBA Boiler USA, and may be subjected to a restocking fee
Notice: Due to the uncontrollable metal costs, all prices and delivery times are subject to change on a daily basis.
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*NOTE: The products described herein are not manufactured by Patterson-Kelley nor is Power Plus International, Inc. DBA Boiler USA in any way associated or affiliated with "PK", Patterson-Kelley, or Harsco Corporation.
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