Relief Valve - Series RVDM

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-Rolling diaphragm provides high accuracy, prevents crystallization

-Flat secondary diaphragm provides a second isolation of the control spring.

-Patented Fail-Dry® safety vent gives advance warning of need to replace primary seal.

-In-line pattern in 1/2", 3/4" and 1" pipe sizes.

-No wetted metals.

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