Details

Description

WATTS®, F111604, Backflow Preventer, Inline, Series: 957-FS, 4 in Nominal, Flange Joint End Style, 175 psi Pressure, 33 to 140 deg F, 7.5 fps Flow Rate, Non-Rising Stem Resilient Seated Gate Valve Ball Valve/Gate Valve, Reduced Pressure Zone Backflow, Media: Water, Stainless Steel Body, 33-3/4 in W x 11-3/16 in D Dimensions, Domestic

Features:

Groove couplings for ease of installation and pipe alignment
Compact design allows small enclosures to be used
Replaceable check disc rubber
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:

N-No UL Code Rating
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

Attributes/Specifications

Backflow Type	Reduced Pressure Zone
Ball Valve/Gate Valve Type	Non-Rising Stem Resilient Seated Gate Valve
Body Material	Stainless Steel
Dimensions	33-3/4 in W x 11-3/16 in D
Domestic/Import	Domestic
End Style	Flange Joint
Flow Rate	7.5 fps
Media	Water
Nominal Size	4 in
Pressure Rating	175 psi
Series	957-FS
Temperature Rating	33 to 140 deg F
Type	Inline
Manufacturer	WATTS®