350ASTDA

Double Check Detector Backflow Preventer

Lead Free

Zurn Wilkins

The 350ASTDA Double Check Detector Assembly protects against both backsiphonage and backpressure in low health hazard, fire protection applications. Its stainless steel body, access covers, internals, fasteners, and springs are corrosion-resistant for reduced maintenance costs. Featuring a metered bypass system, the 350ASTDA efficiently detects leaks and any unauthorized water use. Its single access cover reduces downtime and added costs associated with maintenance and repairs. The 350ASTDA features a short lay-length for compact, versatile installation in horizontal or vertical positions, and is available in a variety of flanged, grooved, or grooved x flanged end connections.

Where to Buy

Short lay-length ensures easy installation in compact spaces
Metered bypass detects leaks and unauthorized water use for reduced maintenance and repair costs
High quality 304L grade stainless steel body and access covers reduces corrosion exposure
Compliant with horizontal and vertical installation
Lead-free law compliant
ASSE® Listed 1048
AWWA Compliant C510 (with gates only), and C550
UL® Classified