For health hazard cross connections and continuous pressure applications
The safest valve for backflow prevention on health hazard applications. Unique patented ""air-in/water-out"" design provides high capacity relief valve discharge performance during emergency conditions of back-siphonage and back pressure with both checks fouled. Installation of a drain is recommended.

Specifications
Pressures up to 175 psi. Temperatures to 140°F. Sizes 3/4"" and 1"" have female threaded body NPT connections. Sizes 1-1/4"" to 2"" have male threaded body NPT connections. NPT connections standard. Quarter-turn, full port resilient seated bronze ball valve shutoffs standard (No. 909QT). 3/4"" and 1"" shut off have tee handles.

Features:
Bronze body construction

Replaceable seats

Ball valve test cocks

Requires no special servicing tools

Captured spring assemblies

Modular design

Options:
Suffix
S - with bronze strainer

HW - with stainless steel check modules for hot water and aggressive water conditions.
Water temperatures to 210°F

LF - without shut-off valves

PC - internal polymer coated

Prefix U - with integral body unions (3/4"" and 1"")

Prefix FAE - with flanged adapter ends (1-1/4"", 1-1/2"", 2"")

Prefix C - clean and check strainer (3/4"" and 1"" only)

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