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Relief Valve - Series RVDM
- -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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