Backflow Reference Manual - Viking

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4", 6", 8", 10"


The Viking Model A-1 is a double check backflow assembly produced from approximately 1977 to 1989. The body is galvanized cast iron. The check seats were replaceable. A seat removal tool is needed to change the seats. It was a lead weight loaded swing check device. Most internal parts were made of bronze.


Common repair parts are a very small subset of the 10,000 plus items BAVCO stocks. Please feel free to contact us direct at 800-458-3492 for pricing on items not listed or backflow prevention devices.