Common terms – Gasboy Atlas Fuel Systems Site Prep Manual User Manual
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MDE-4333E Atlas Fuel Systems Site Preparation Manual · November 2011
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Reference Documents
Introduction
Common Terms
Term
Definition
CoC
Certificate of Compliance [see
s on the back of the front cover for listing of numbers].
CSA
Canadian Standards A
DEF
A clear, colorless, non-toxic, non-flammable, non-combustible liquid. It is made up of 32.5% Urea
with the balance distilled or de-ionized water. Urea and water are completely miscible and do not
separate in storage. DEF is mildly corrosive.
Dispenser
Dispensing device that uses STP in storage tank to move fuel from storage tank to dispenser.
Double-poppet
Shear Valve
A double-poppet shear valve shuts off the flow of fuel, from the underground tank and from the
dispenser, at the dispenser base (hydraulics area) during vehicle impact or fires.
High Hose
Pumps/dispensers with hoses that connect overhead.
Low Hose
Pumps/dispensers with hoses that connect at hydraulics level.
Master/Satellite
Master dispensers are teamed with satellites for rapid fueling of trucks with saddle tanks. The
master unit meters and computes product flow for both units. The satellite is a dispenser without
the electronics module.
Pit Box
If used, a rigid, anchored enclosure to be installed in the ground onto which the pump/dispenser
is mounted. The pit box is also the point to which plumbing and conduit are routed, and to which
the lower portion of the shear valve(s) is connected. “Pit box” is also known as “dispenser sump”.
Pump
Uses self-contained pumping unit and motor to move fuel from storage tank.
Single-poppet
Shear Valve
A single-poppet shear valve shuts off the flow of fuel, from the underground tank, at the dispenser
base (hydraulics area) during vehicle impact or fires.
STP
Submersible Turbine Pump.
UL
Underwriters Laboratories (
).
ULC
Underwriters Laboratories of Canada (
UL-listed
Products that bear the authorized Listing Mark of Underwriters Laboratories (UL). This is the
manufacturer’s declaration that the product complies with UL’s requirements in accordance with
the terms of UL’s Listing and Follow-Up Service agreement.
Valves
Mechanical device by which the flow of fuel in bulk may be started, stopped, or regulated by a
movable part that opens, shuts, or partially obstructs one or more ports or passageways.