SAFEX FIRE SERVICES LTD
Instructions for Installation
Operation, Tests and Maintenance
Alarm Valve - FAVB Series
No False Alarm
Outstanding Durability
Anti-corrosive Trim
Confidential Operation
FAVB 100(150)
Technical Data
General Description
As an essential part of a wet sprinkler system, MODEL : FAVB 100(150)
Paradise Industry Alarm Valve are used for Maximum Working Pressure : 175 psi (12 bar)
device that detects water flow of fire equipment Flange Connection : ANSI B16.1 FF Class 150
installed in residential area, manufacturing area, Factory Hydrostatic Test Pressure :
and so on.
25 bar (350 psi)
The valve is designed to initiate an alarm during
a sustained flow of water(such as the flow Approximate Net Weight :
required by an open sprinkler)by operating an 4”(100A) – 38.6 kg (Included trim)
optional water motor alarm and/or alarm pressure
6”(150A) – 56.2 kg (Included trim)
switch.
Material
Features
Body/Cover/Drain. . . . . . Gray Cast Iron
- Cast iron body for extra hydrostatic strength Seat ring .............. . . . . .............. Bronze
- Quick removal and easy service for rubber-faced
clapper Clapper ......................... . .............. STS304
Clapper seat ................. . ................ VITON
SAFEX FIRE SERVICES LTD
DATA SHEET FOR – Alarm Valve
PROPERTY DATA
Manufacturer Safex Fire Services Ltd.
Number & Size As per approved drawing ( dia 150 mm,100mm )
Type ANSI 150lb FF type
Flow & pressure rating 175 PSI
Test pressure 350 PSI
MATERIAL
MOC Body IS 210 Gr. 260
Valve internals Cast bronze - IS 318 LTB -II
Seat Seal Neoprene rubber
Diaphragm Neoprene rubber
Differential pressure required for operation kg/cm2 Differential ratio - 50%
Water motor gong provided yes
TYpe Hydraulic ratio - 50%
Material of construction Housing Aluminium alloy - IS 617
Housing / cover / rotor Aluminium to IS 737
Gong Aluminium to IS 737
Manual actuation lever provided YES
Remote actuation with solenoid valve provided yes
Resetting type Manual resetting type
Alarm valve approved by TAC Yes, Also UL listed/FM approved
SAFEX FIRE SERVICES LTD
DESIGN CRITERIA
FIGURE 1. BASIC DIMENSIONS
A B C D E F G H I J K L
FAVB 100R 100 175 210 24 250 169 415 8-19D 376 50A 50 153
FAVB 150R 150 240 280 26 280 199 480 8-23D 391 50A 50 153
PART LISTS
NO. ITEM MATERIAL NO. ITEM MATERIAL
1 Body Cast Iron 6 Seat Cover STS 304
2 Cover Cast Iron 7 Retarding Chamber SPCC/SPPS
3 Seat Ring Bronze 8 Pressure Switch -
4 Disc & Arm STS 304 9 Drain Valve Cast Iron/Brass
5 Disc Seat Viton 10 Alarm Test Valve Brass
SAFEX FIRE SERVICES LTD
OPERATION
When the fire protection system is initially being Variable Pressure Trim
pressurized, water will flow into the system until Retard is required.
the water supply and system pressure become This trim set is used where water supply
equalized, and clapper is closed. pressure vary. The retard chamber and
mechanical sprinkler alarm line are drained
When a sustained flow of water occurs, such as through a opened test valve line.
an activated sprinkler, open sprinkler or an open
authorized person’s test connection, the clapper
lifts from its closed position, this allows water flow Constant Pressure Trim
into the intermediate chamber through the holes Retard is not required.
in the seat ring and it will fill the retarding This trim set is used where water supply
chamber completely. The water flows from pressure does not vary.
intermediate chamber to the alarm line and
activates the water motor alarm and/or the
pressure switch for the electric alarm. These
alarm continue to sound until the flow of water
stops.
Operational Mechanism of FAVB Alarm Valve
In service In activate
SAFEX FIRE SERVICES LTD
INSTALLATION TEST & MENTANENCE
Before the Installation
Prepare sealing materials suitable for the FAVB To test the operation of the alarm valve,
Alarm Valve to be installed. open the inspectors test connection which
should cause the mechanical and the electric
When the installation is completed thoroughly clean alarm to sound. This test connection is
along the inner side of pipes. If possible, flush the usually located on the end or top line of the
pipe with water until it is completely rinsed out. system.
Alarm Valve Installation To test supply piping for unobstructed flow,
Once again, clean inner side of valve body. Check open alarm test valve(10) figure 1.
the disk, disk seat and seat ring hole before the When test is completed make sure to close
installation. drain valve(9) securely and close alarm test
valve(10).
Install the alarm valve, pressure gauge,
pressure switch and water motor alarm. In case of Alarm valves and associated equipment shall
variable pressure system, install the retarding periodically be given a through inspection and
chamber. For constant pressure system, install the test. NFPA 25 provides minimum inspection,
water motor alarm directly without the retarding testing and maintenance requirements. Alarm
chamberWater motor alarm connect directly the valves shall be tested, operated, cleaned,
water motor line of the retarding chamber tee line. inspected and parts replaced as required, at
Refer to the trim chart least annually.
FOR SAFEX FIRE SERVICES LTD.
APPROVED BY
