Design Criteria - Tyco RSV-1 Manual

TFP980
Page 2 of 8

Design Criteria

The TYCO RAPID RESPONSE Model
RSV-1 Residential Shut-Off
must be installed vertically with the
Water Supply Port at the bottom, the
Fire Sprinkler Port at the top, and the
Domestic Port at the side (Figures 7
and 8). Figure 1 shows the typical in-
stallation arrangement. Refer to the
Installation section for additional de-
sign considerations.
Local regulations concerning pub-
lic water supplies may require a
backfl ow prevention device. The de-
sign of the Model RSV-1 Residential
Shut-Off Valve anticipates that the
backfl ow prevention device will be
located in the water supply upstream
of the Model RSV-1 Valve as shown
in Figure 1. Should local regulations
require the backfl ow prevention de-
vice to be located in the fi re sprinkler
line downstream of the Model RSV-1
Valve, a by-pass per Figure 2 must be
installed.
NOTICE
Do not install a check valve between the
Model RSV-1 Residential Shut-Off Valve
and the fi re sprinklers unless a by-pass
per Figure 2 is installed. Installing a by-
pass disables performance of the Model
RSV-1 Valve as a check valve.
Water Supply Requirements
• 1 Inch (DN25) Valve
In order for the 1 Inch (DN25) Model
RSV-1 Valve to operate automati-
cally upon sprinkler operation, the
fi re sprinkler system from the water
main to the most hydraulically re-
mote sprinkler must be designed to
provide a minimum single sprinkler
fl ow of 12.5 GPM (47,3 LPM) when
the supply pressure at the main is at
its minimum expected value.
The minimum single sprinkler fl ow
rate of 12.5 GPM (47,3 LPM), re-
quired for use with the 1 Inch (DN25)
Model RSV-1 Valve, does not take
precedence over any more hydrau-
lically demanding single sprinkler
fl ow rate specifi ed for the residential
sprinklers in use.
When performing hydraulic design
calculations for the fi re sprinkler
system, you need not account for
the trickle fl ow through the 1 Inch
(DN25) Model RSV-1 Valve By-
Pass Restriction into the domestic
system.
For the 1 Inch (DN25) Model RSV-1
Valve, the maximum water supply
service line is 1 inch (DN25).
• 2 Inch (DN50) Valve
In order for the 2 Inch (DN50) Model
RSV-1 Valve to operate automati-
cally at sprinkler activation, the fi re
Valve
sprinkler system from the water
supply main to the most hydrauli-
cally remote sprinkler must be de-
signed to provide a minimum single
sprinkler fl ow of 8 GPM (30,5 LPM)
when the water supply pressure at
FIRE SPRINKLER
SYSTEM PRESSURE
SHUT-OFF VALVE
WATER
SUPPLY
GATE
VALVE
WATER
SUPPLY
WATER SUPPLY
MAIN
REQUIRED BY-PASS FOR BACKFLOW PREVENTION
GAUGE
WATERFLOW
DETECTOR
(FIRE ALARM)
MODEL RSV-1
RESIDENTIAL
(AUTOMATIC)
MAIN
WATER
CONTROL
METER
VALVE
BACKFLOW PREVENTER AS
REQUIRED BY AUTHORITY
HAVING JURISDICTION
FIGURE 1
TYPICAL INSTALLATION ARRANGEMENT
BY-PASS
EQUIVALENT SPRINKLER
TO MAXIMUM
1/4 INCH
OUTSIDE
DIAMETER
TUBNG
FIGURE 2
IN FIRE SPRINKLER LINE
the water supply main is at its mini-
mum expected value.
The minimum single sprinkler fl ow
rate of 8 GPM (30,5 LPM), required
for use with the 2 Inch (DN50) Model
RSV-1 Valve, does not take prece-
dence over any more hydraulically
demanding single sprinkler fl ow rate
specifi ed for the residential sprin-
klers in use.
AUTOMATIC FIRE SPRINKLERS
DRAIN AND FLOW
TEST CONNECTION
ALARM TEST
CONNECTION
TO DOMESTIC
SYSTEM
DOMESTIC
CONTROL
VALVE
SUPPLY
PRESSURE
GAUGE
TO FIRE
SYSTEM
BACKFLOW
PREVENTER
TO DOMESTIC
SYSTEM
RSV-1