770 / 772

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Watts 770 is a double check assembly. Discontinued in 1997. The check bodies are made of ductile iron which is fused epoxy coated. The check has a stainless steel toggle linkage. The check springs are contained. The spring tension must be released to repair the assembly. The bronze check seats are replaceable. A seat removal tool is needed. Vulcanized clapper plates are used to seal the check. The shutoffs on the 772 are a special shutoff. The shutoffs used on the 772 are not standard. There are two different size flanges on the inlet and outlet.

This series is currently Obsolete!

 

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