Backflow protection devices - WATTS industries
Backflow protection devices - WATTS industries
Backflow protection devices - WATTS industries
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BACKFLOW PROTECTION DEVICES<br />
Protection matrix<br />
6<br />
BA<br />
BA 909<br />
BA 009<br />
BA BS MICRO<br />
Pressure<br />
Liquid category<br />
<strong>protection</strong> units<br />
<strong>Backflow</strong> preventer<br />
with controllable<br />
reduced pressure<br />
zone<br />
P = atm P > atm<br />
1 2 3 4 5 1 2 3 4 5<br />
CA<br />
CA 9C<br />
Pressure<br />
Liquid category<br />
<strong>protection</strong> units<br />
<strong>Backflow</strong> preventer<br />
with different<br />
non controllable<br />
pressure zones<br />
P = atm P > atm<br />
1 2 3 4 5 1 2 3 4 5<br />
DA<br />
DA 288A<br />
Pressure<br />
Liquid category<br />
<strong>protection</strong> units<br />
In line anti-vacuum<br />
valve<br />
P = atm P > atm<br />
1 2 3 4 5 1 2 3 4 5<br />
EA<br />
CONTROLLABLE<br />
CHECK VALVES<br />
Pressure<br />
Liquid category<br />
<strong>protection</strong> units<br />
Controllable<br />
anti-pollution<br />
check valve<br />
P = atm<br />
P > atm<br />
1 2 3 4 5 1 2 3 4 5<br />
EB<br />
PLASTIC<br />
CHECK VALVES<br />
Pressure<br />
Liquid category<br />
<strong>protection</strong> units<br />
Non-controllable<br />
anti-pollution<br />
check valve<br />
P = atm<br />
P > atm<br />
1 2 3 4 5 1 2 3 4 5<br />
Only permitted for specific domestic<br />
applications and as front <strong>protection</strong> for<br />
domestic water installations (pattern in<br />
home water meters)<br />
HA<br />
HA S8C<br />
HA NF8<br />
HD<br />
HD N9<br />
HD NLF9<br />
Pressure<br />
Liquid category<br />
<strong>protection</strong> units<br />
Hose union<br />
anti-vacuum valve<br />
P = atm<br />
P > atm<br />
1 2 3 4 5 1 2 3 4 5
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