Watts FS10-F User Manual download pdf

Series FS10-F

Waterflow Indicators

For automatic sprinkler fire protec-

tion service and signaling systems

for branch lines

Sizes: For pipes 1”, 1

”, or 1

”

(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

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Contractor

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Job Location

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Approval

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Engineer

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Contractor’s P.O. No.

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Approval

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Representative

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Paddles

3 in 1 Paddle – Beryllium copper paddle quickly adaptable for 1”,

⁄

” or 1

⁄

” (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

” (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

1 2

Summary of Contents

Page 1 - Waterflow Indicators

Series FS10-F Waterflow IndicatorsFor automatic sprinkler fire protec-tion service and signaling systems for branch linesSizes: For pipes 1”, 11/4”, o

Page 2 - Location

Flow RatesFlow rates required to actuate No. FS10-F IN Horizontal pipeFlow rates in U.S. gallons per minute (GPM). Velocity in feet per second (FPS).E