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Water Safety & Flow Control


Non-Freeze Wall Hydrants with Backflow Preventer


3/4 or 1 in. (15 or 25mm)


Series HY42 Non-Freeze Wall Hydrants with Backflow Preventer are used in commercial and industrial applications to provide freeze protection and backsiphonage protection of the external water supply. It is designed to blend with modern architecture. It consists of a brass body construction with chrome-plated brass finish and 3/4 in. (20mm) hose thread nozzle, 3/4 in. (20mm) female or 1 in. (25mm) male IPS threaded inlet connection, replaceable EPDM seat, one-piece valve plunger to control both flow and automatic drain functions, and loose tamper-resistant tee key. Model HY42B comes with a mounting box. Series HY42 provides vacuum-breaker and backflow preventer protection and is ideal in restaurants, schools, office buildings, churches, apartments, motels, stores, shopping centers and industrial building installations.

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Disclaimer: Watts product dimensions in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements, please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.

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