Description

WATTS®, F111781, Backflow Preventer, N-Pattern, Series: 957-FS, 3 in Nominal, Grooved End Style, 175 psi Pressure, 33 to 140 deg F, 7.5 fps Flow Rate, Outside Stem and Yoke Resilient Seated Gate Valve Ball Valve/Gate Valve, Reduced Pressure Zone Backflow, Media: Water, Stainless Steel Body, 31-3/4 in W x 10-1/2 in D Dimensions, Domestic

Features:

• Replaceable check disc rubber
• Compact design allows small enclosures to be used
• Groove couplings for ease of installation and pipe alignment
• Features a flood sensor with SentryPlus Alert technology to detect excessive water discharges from the relief valve
• 304 (Schedule 40) stainless steel housing and sleeve
• The maximum working pressure is 175 psi (12.06 bar)

Standards/Approval:

• 1-UL Listed
• ASSE 1013
• CSA B64.4
• cULus Classified
• FM Approved
• NSF/ANSI 691-G
• PROP65: Cancer and Reproductive Harm www.P65Warnings.ca.gov

Warranty:

1 Year

Backflow Type	Reduced Pressure Zone
Ball Valve/Gate Valve Type	Outside Stem and Yoke Resilient Seated Gate Valve
Body Material	Stainless Steel
Dimensions	31-3/4 in W x 10-1/2 in D
Domestic/Import	Domestic
End Style	Grooved
Flow Rate	7.5 fps
Media	Water
Nominal Size	3 in
Pressure Rating	175 psi
Series	957-FS
Temperature Rating	33 to 140 deg F
Type	N-Pattern
Manufacturer	Watts Regulator Company