Gasboy 8700Q Series - Manual (Page 9)

Installation
12/03/03 2-3
A Listed emergency shut-off valve (OPW 10RUS or equal) must be installed under each remote
dispenser with the shear groove at the same level as the top of the concrete island + 1/2"
(12.7mm). The shutoff valve should be rigidly supported to insure proper shearing and closure of
the valve in the event the remote dispenser is dislodged. According to the type of shear valve, a
different supply nipple may be required.
After a shear valve has operated on an emergency basis from fire or mechanical shock, or
if it does not operate correctly when inspected, repairs must be made before putting the
remote dispenser into service.
It is required by the Flammable and Combustible Liquids Code that a leak detector be installed in
the system to prevent underground leaks from going unnoticed.
NOZZLE, HOSE, AND ACCESSORIES
This unit is normally equipped for use with a UL-Listed interchangeable service station type
nozzle. Only UL-Listed hose assemblies and accessories are to be used with this device. A
Listed breakaway connector must be installed on all hose assemblies.
SUPPLY LINE
Use new galvanized or fiberglass (see note) pipe, 1 1/2" (38.1mm) minimum diameter.
NOTE: Fiberglass pipe is to be installed according to manufacturer’s specifications and
requirements.
Be sure both the pipe and the tank are clean. Foreign matter entering the pump can cause
extensive damage. Obstructions in the supply line can create pump problems and reduced flow
rate.
Make sure all pipe threads are properly cut and the inside reamed to remove burrs. Use Listed
gasoline-resistant compound on all joints of gasoline handling piping. Sealing compound must
also be resistant to Gasohol (Ethanol and Methanol). Do not use Teflon Pipe Sealing Tape. Use
gasoline-resistant pipe compound on male threads only; pipe compound used on female threads
can be squeezed into the supply line where it can enter the product stream and become lodged in
the pump or meter. Install swing joints under the pump and at the tank to avoid breaks in the
supply line from settling or frost heave.
To avoid product delivery problems on suction pumps, be sure there are no traps in the supply
line. Supply lines, for both suction pumps and submersible pumps, should go straight down
beneath the pump to a point 18 inches (45.7cm) below the ground level and pitch at a rate of 1/8
inch (3.18mm) per foot (.305m) from there down to the storage tank. The supply line should be as
short and direct as possible with swing joints at all turns. Support the horizontal run of pipe at 10-
foot intervals to maintain pitch and prevent traps. Do not use wood as pipe supports.
New EPA regulations require that only one check valve be used per supply line and located
directly below, and as close as practical to the suction pump. Do not use spring-loaded or union
check valves since these will unnecessarily reduce the flow rate and contribute to the reduction of
atmospheric pressure necessary to keep gasoline in a liquid state.
Upon completion of installation, all liquid-carrying lines must be checked for leaks.