Warranty

For additional product information, please visit www.zurn.com.
3131
BACKFLOW
PREVENTERS
BACKFLOW PREVENTERS
ACCESSORIES STRAINERS
AUTOMATIC
CONTROL VALVES
PRESSURE
REDUCING VALVES
FIRE
PROTECTION VALVES
THERMOSTATIC
MIXING VALVES RELIEF VALVES
MISCELLANEOUS
PLUMBING PRODUCTS REPAIR KITS
SIZE
LEAD-FREE
PART NUMBER
LEAD-FREE
LIST PRICE EA.
FCIS: NPT X NPT
-” -FCIS 6,095.40
-” -FCIS 6,234.60
” -FCIS 6,563.40
FCIS: FLANGED NRS X FLANGED NRS
-” -FCIS 9,485.40
” -FCIS 9,647.50
” -FCIS 11,893.10
” -FCIS 16,433.10
” -FCIS 25,682.20
” -FCIS 35,775.70
FCISOSY: FLANGED OSY X FLANGED OSY
-” -FCISOSY 9,996.80
” -FCISOSY 10,224.80
” -FCISOSY 12,233.00
” -FCISOSY 17,121.80
” -FCISOSY 26,622.40
” -FCISOSY 36,079.20
FCISAST: STAINLESS STEEL BACKFLOW, FLANGED NRS X
FLANGED NRS
-” -FCISAST 9,485.40
” -FCISAST 9,647.50
” -FCISAST 11,893.10
” -FCISAST 16,433.10
” -FCISAST 25,682.20
” -FCISAST 35,775.70
FCISASTOSY: STAINLESS STEEL BACKFLOW, FLANGED OSY
X FLANGED OSY
-” -FCISASTOSY 9,996.80
” -FCISASTOSY 10,224.80
” -FCISASTOSY 12,233.00
” -FCISASTOSY 17,121.80
” -FCISASTOSY 26,622.40
” -FCISASTOSY 36,079.20
For grooved options part number will be designated using
“GF” “FG” or “G” (eg -FCISGF -FCISFG -FCISG)
APPLICATIONS
For the prevention of catastrophic flooding in indoor
applications. Automatically shuts o the water supply
in the event of relief valve discharge. Designed for
plumbing, waterworks, and irrigation systems.
FEATURES
• 1-1/4” - 10”
• 175 psi max
• 140°F max
• Reduced Pressure Principle backflow Preventer and
Monitor Switch (Model 375MS or Model 975XL2MS)
• Electronic Solenoid Timer (Model EST) Signal Relay
attached to a Solenoid Control Valve (Model ZW206)
to shut-o the water supply
• Grooved or flanged end connections
• Quick disconnect connectors
• Alarm Output contacts
• Available as a standalone electronic solenoid timer,
Model EST
• Available as an integral relief valve monitor switch
kit, Model MSK/BMSK Series
• Ships as two components
TYPICAL INSTALLATION
CAUTION: To prevent water damage, an adequately
sized drain MUST still be installed to handle water
discharge from the backflow relief valve. The monitor
switch will start to signal the relief valve opens 1/16” to
1/8”. For example, an 8” valve at 100 psi can discharge
75 gpm from the relief valve before initiating the
shutdown process. Also, as the shuto cycle can take
up to 2 minutes, under a severe fouling condition in the
#1 check valve, the relief valve may discharge 500-1000
gallons before shutdown is complete.
OPTIONS AND LIST PRICE ADDERS
(ADD OPTION TO LIST PRICE TO DETERMINE TOTAL LIST PRICE)
AIR GAP (-AG) OPTION
-” - ” AG Option Iron Air Gap
(AG-)
112.40
-” - ” AG Option Iron Air Gap
(AG-)
143.10
” - ” AG Option Iron Air Gap
(AG-)
236.00
Part number will be designated using “-AG” (eg -FCIS-
AG)
FSC STRAINER (FSC) OPTION WITH BOLT KIT, FLANGED X
FLANGED CONNECTION (E.G. 212-FCISFSC)
-” 390.60
” 474.70
” 773.90
” 1,244.80
” 2,471.80
” 4,283.40
Part number will be designated using “FSC” (eg
-FCISFSC)
Designed for installation with MS or MS with Monitor
Switch feature and Model ZW Control Valve
DESCRIPTION
LEAD-FREE
PART NUMBER
LEAD-FREE
LIST PRICE EA.
ELECTRIC SOLENOID
TIMER
EST 2,933.40
EST – ELECTRIC SOLENOID TIMER
SIZE
MODEL USE
LEAD-FREE
PART NUMBER
LEAD-FREE
LIST PRICE EA.
MSK FOR 975XL SERIES
” - ” MSK- 323.40
-” - ” MSK- 352.70
MSK FOR 375 & 475 SERIES
-” - ” MSK-- 899.70
” - ” MSK-- 1,230.70
BMSK FOR 975XL SERIES, BATTERY POWERED AUDIBLE
ALARM
” - ” BMSK- 511.80
-” - ” BMSK- 542.60
MSK/BMSK SERIES –
INTEGRAL RELIEF VALVE MONITOR SWITCH KIT
TYPICAL INSTALLATION
30” MAX.
12” MIN.
DIRECTION OF FLOW
FCIS SERIES – FLOOD CONTROL INTEGRATED SYSTEM AND DISCHARGE MONITORING SOLUTIONS