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The Cash Acme vacuum relief valve, part number 22398LF, is essential for protecting hot water supply systems and pressure vessels from negative pressure. This valve is commonly used in domestic and commercial systems to prevent internal vacuum conditions that can lead to equipment failure, such as burned-out heaters or collapsed storage tanks. It installs on the cold water supply line and operates effectively by maintaining pressure and opening at 1 inch mercury vacuum, allowing atmosphere into the system to avoid collapse.
This product integrates safety features that ensure the reliable operation of water systems in various settings.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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