Safe Signal WFDNFS and WFDNFT waterflow detectors are designed for primary signaling in systems that use CPVC fittings.

Safe Signal WFDN series is compatible with schedule 7 through 40 steel pipe, for sizes 2 in. through 4 in. and compatible with schedule 10 through 40 steel pipe, sizes 5 in. through 8 in., and can be mounted in a vertical or horizontal position.