Mechanical Installation Requirements - Bennett Horizon 2 Series Installation Manual

Pipe Installation for Self-Contained Pumps

Dig a trench between the tanks and the dispenser foundation. It must be deep enough to place the
product pipe at least 18 inches below the surface of the ground (at its highest point). The slope
upwards from the tank should be 1-1/2" to 2" per 10 feet. The trench should be as straight as
possible to avoid as many elbows and bends in the line as possible. All piping must conform to local
fire regulations.

Use new 1-1/2" or larger EPA approved pipe.

Static lift on self-contained units should not exceed 10 feet (vertical distance between product level
in the storage tank and the center of the pumping unit rotor.

Install an in-line vertical check valve underneath each pumping unit.

Avoid asphalt drive surfaces covering the product pipes. Asphalt increases heat absorption causing
vapor lock.

Each pumping unit is to have its own dedicated suction line to the tank. Do not connect two pumps
to the same suction line.
Above Ground Tank Installation with Self-Contained Pumps
Bennett self contained dispensers can be used with above ground tank installations if the following
requirements are met:

An Underwriters (U.L.) Listed Pressure Regulating Valve designed for under-the-pump mounting is
installed for each pumping unit according to the valve manufacturer's instructions.

Any additional valves suggested by the Pressure Regulating Valve manufacturer are installed
according to the manufacturer's recommendations.

The installation must be installed and used in accordance with Federal, State, Local, and National
Electrical code NFPA #70 and Automotive and Marine service station code NFPA 30A.
PIPE INSTALLATION FOR REMOTE DISPENSERS
Install an approved emergency shear valve, designed
to close automatically in the event of severe impact or
fire exposure, in the dispenser supply line at the base
of the dispenser. The valve will also permit safe
inspection and maintenance.
instructions for the valve being installed. See Figure 5.

Mechanical Installation Requirements

DETERMINING STUB UP POSITIONS IN THE CONTAINMENT SUMP
Determine the model number of the dispenser or pump from the pump's name plate and locate the
corresponding figure from figures 8,9,10 or 11. The corresponding figure will indicate the location of the
piping and conduit connections for the dispenser. Plan your installation to locate these items according
to these prints.
Anchor the dispenser to the island with four anchor bolts through the base frame.
ANCHORING THE DISPENSER, always level the dispenser with shims before bolting to the island.
Place the shims at the location of the anchor bolts so the dispenser frame is not distorted when the
anchor bolts are tightened down. The dispenser must be bolted to the island. Do not skip this step.
Check with Federal, State and Local Codes for conduit use in your area. Bennett Pump Company
recommends the use of Rigid metal conduit.
Follow the installation
10
Figure 5
WHEN
105894 Rev G 12-6-16