Anti-Siphon Device - Tuthill FILL-RITE FR700V Serie Manual De Instalación Y Operación

CAUTION! Threaded pipe joints and connections should be sealed with the appropriate sealant or sealant tape to minimize the possibility of leaks.

Anti-Siphon Device

Your FR700V Series pump comes from the factory ready to install an anti-siphon tube
back to the tank. An anti-siphon device (a.k.a. vacuum breaker) is important because
it will break a liquid siphon if there is an open nozzle or a leaking hose below the fluid
level in the tank when the pump is turned off. Fill-Rite recommends anti-siphon kit #
KIT700AS be installed from the pump outlet back to the vapor space in the tank.
This illustration shows where to install the tube so that it terminates in the vapor space
at the top of the tank. The tube must terminate in the vapor space; if it terminates
below the fluid level in the tank, it will not prevent siphoning. It is very important there
are no liquid traps in the tubing; it must have a continuous slope from the pump down
to the tank, and can be connected into any opening in the top of the tank if the tank
adapter is not used. Use reducer bushings as required for proper fit and seal.
The ¼ NPT opening in the side of the tank adapter terminates in the vapor space of the
tank. Make liquid-tight connections using the appropriate sealant from the adapter
to the anti-siphon outlet using a minimum of ¼ metal tubing that is compatible with
whatever liquid is being pumped. If the anti-siphon tank adapter is being used and the
¼ NPT opening is not used for the tubing, leave the factory installed plug in place.
Fill-Rite offers Anti-Siphon kit # KIT700AS (available through your Fill-Rite distributor).
This kit contains the necessary fittings and tubing to complete the installation as
pictured in this section and supplying your own anti-siphon line. NOTE: This kit ONLY
works for adapter kit tank top installations.
If not using the KIT700AS, you will need the KIT700AVB. This will allow you to connect
a line either back to the tank, or to the bung adapter.
Bung Adapter / Suction Pipe Assembly and Installation
FR700V Series pumps feature a 2" Bung Adapter with integral connection for an anti-
siphon device. When installing the suction pipe into the bung adapter, the suction pipe
must be inserted into the bung adapter correctly for proper operation. The suction pipe
threads into the tank adapter, and must be cut to a length that positions it at least 3"
from the bottom of the tank.
1. Measure and cut suction pipe to fit as described above.
2. Examine the bung adapter to determine top and bottom for proper insertion of
the suction pipe. The bung adapter is labeled to help: the end marked "PUMP
SIDE" is the top of the bung adapter. Note that the internal threads for the suc-
tion pipe are at the TOP of the opening, but the suction pipe is inserted through
the bottom opening.
3. Wrap the threads of the suction pipe with the appropriate sealant for the fluid
being pumped. Insert the suction pipe (with the threaded side up) into the bot-
tom of the bung adapter until the threads engage.
4. Tighten the suction tube into the bung adapter to create an air / fluid tight seal.
5. Apply an anti-seize thread compound to the external threads on the bottom of
the bung adapter. Install the assembled bung adapter and suction pipe into the
bung opening on the tank. Tighten to a fluid / air tight seal.
6. Install pump onto bung adapter using appropriate fluid sealant, and tighten
to a fluid / air tight seal.
INSTALLATION AND OPERATION MANUAL
ANTI-SIPHON INSTALLATION
ANTI-SIPHON LINE
TOP
1¼" SUCTION PIPE
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TANK ADAPTER
SKID TANK