Zurn Wilkins 350ADAPIOSY - 8" Double Check Detector Backflow Preventer with post indicator (PI) and OS&Y gate valves

Ideal for fire protection applications, with a metered by-pass to detect leaks and unauthorized water use.
Used in low health hazard applications.
8" double check detector assembly with post indicator (PI) and OS&Y gate valves.
Short lay-length for small space installation.
Reliable performance and improved flow characteristics from patented compound check.
Approved in horizontal and vertical positions.
No threads or taps in body or cover, eliminating exposure to corrosion.
Single access cover reduces maintenance down time.
PI gate valve is a mon-rising stem gate valve with attachment plate for indicator post.