Watts FS10-F - Manual

Series FS10-F
Waterflow Indicators
For automatic sprinkler fire protec-
tion service and signaling systems
for branch lines
Sizes: For pipes 1”, 1 1 /
4
”, or 1 1 /
2
”
(25, 32, or 40mm)
The Series FS10-F Waterflow Indicators provide a positive way
of detecting the flow of water in any distribution, branch, or
mainline piping of a sprinkler system. When wired to alarms or
signaling systems, these indicators immediately indicate the
location of any open heads. Quick detection and signaling of
open heads can assist in pinpointing the exact fire location.
This can increase supplementary firefighting activities, speed
up the fire extinguishing process, provide effective building
evacuation, and minimize water damage. The indicators are
factory set and sealed for a minimum alarm flow rate of
4 to 10 GPM.
Features
• Beryllium copper paddle
• Indicator light integral with switch cover
• Factory set and sealed for minimum alarm
• Two adjusting screws (fine and coarse) to adjust sensitivity
• Removable cover for easy access to switch terminals
• 1” (25mm) NPT connection
• Switch assembly independent/removable from mounting
adaptor
Standards
Underwriter’s Laboratories Listed U.S.A. No. 11S2
Underwriter’s Laboratories Listed Canada No. CS-515
Pressure-Temperature
Maximum Working Pressure: 175psi (12.1 bar) at 300°F (149°C)
For Industrial and Commercial Applications
ES-FS10-F
Job Name ––––––––––––––––––––––––––––––––––––––––––– Contractor ––––––––––––––––––––––––––––––––––––––––––––
Job Location ––––––––––––––––––––––––––––––––––––––––– Approval –––––––––––––––––––––––––––––––––––––––––––––
Engineer ––––––––––––––––––––––––––––––––––––––––––––– Contractor’s P.O. No. ––––––––––––––––––––––––––––––––––
Approval ––––––––––––––––––––––––––––––––––––––––––––– Representative ––––––––––––––––––––––––––––––––––––––––
Paddles
3 in 1 Paddle – Beryllium copper paddle quickly adaptable for 1”,
1 1 ⁄
4
” or 1 1 ⁄
2
” (25, 32, or 40mm). Paddle length conforms to ASTM
tee standards.
Materials
Body: Brass
Enclosure: Zinc plated steel
Cover: Epoxy coated steel
Bellows: Brass ASTM B-36
Inlet Adapter: Brass ASTM B-36
Paddle: Beryllium Copper ASTM B-194
EASY WIRING –
cover completely removable,
no danger of wires interfering
with operation.
INDEPENDENT
Switch
assembly
SWITCH –
Single pole,
double throw
TWO KNOCKOUTS –
Connect conduit at
either side of chassis.
O-RING INLET ADAPTER –
Threaded connection
(quick paddle orientation
in pipe.)
PADDLE – made of beryllium copper. Quickly
adaptable for 1” (25mm) to 1 1 /
2
” (40mm) pipe.
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials with-
out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
79WO
LISTED
EXTINGUISHING SYSTEM
ATTACHMENT, FIRE ALARM
FIRE ALARM
EQUIPMENT
11S2