Rain Bird APAS-075 Manual Del Propietário página 2

NOTE: These Rain Bird valves are designed for use with static water
pressures of a MAXIMUM of 125 PSI. For higher pressures, a pressure
regulator should be installed. For outdoor watering use only.
For dirty water systems – using wells, Iakes, ditches, etc. for your
water supply – be sure to instaII a 100 mesh (or finer) wye filter or
screen filter before the eIectric valves.
ANTI-SIPHON VALVES FOR BACKFLOW PREVENTION
The APAS models meet or exceed most building code requirements for
connecting a sprinkler system to a city water supply.
These valves prevent the possibility of back-siphoning of water from
sprinkler lines into the drinking water.
The anti-siphon valves must be installed at least 6 inches above the high-
est sprinkler in the circuit to work properly. (See Diagram 1)
Do not use this anti-siphon valve as a main line backflow device, nor as
a master valve. It is not designed nor approved to be under constant water
pressure on both sides of valve. Do not install any other valves downstream.
If installed incorrectly under constant pressure on both sides of valve, it is
possible that the valve will fail or burst.
HOW TO SELECT THE RIGHT VALVE SIZE
The valve size (3/4" or 1") is determined by the water flow (measured in
gallons per minute, or GPM) of the air line or the sprinkler circuit.
3/4" VALVES: 13 GPM or less.
CAUTION
1" VALVES: 14 GPM or more.
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