Gasboy Atlas Fuel Systems Installation Manual - Manual (Page 71)

MDE-4331M Atlas® Fuel Systems Installation Manual · September 2014 Page 7-9
Plumbing Requirements Reference Information
Pumps (Standard Flow)
Use a new 2-, 2-1/2-, or 3-inch pipe. Use a 2-inch pipe for runs up to 50 feet to a single pump.
Increase to a 2-1/2- or 3-inch pipe for longer runs up to 75 feet to a single pump with
maximum lift condition. To supply every self-contained pump, a dedicated line is
recommended.
Pumps (High Flow, Super-Hi, Ultra-Hi)
Except for the riser, use a new 3-, 3-1/2- or 4-inch pipe. Use a 3-inch pipe for runs up to 50 feet
to a single pump. Increase to a 3-1/2- or 4-inch pipe for longer runs up to 75 feet to a single
pump with maximum lift condition. To supply every self-contained pump, a dedicated line is
recommended.
Piping and Plumbing Components (DEF)
Piping and plumbing components must be compatible with DEF. Typical piping used is either
stainless steel or High Density Polyethylene (HDPE). In environments where temperatures
drop below 15 °F (-9.4 °C), external components must be insulated and heated as required to
prevent freezing. Thermostatic control of the heater circuit is recommended where heating
commences above 15 °F (-9.4 °C).
Dispensers (Standard Flow)
Use a new 2-, 2-1/2-, or 3-inch pipe. If the distance from the STP to the farthest dispenser is
200 feet or less, use a 2-inch pipe. If the distance exceeds 200 feet, use a
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2-1/2- or 3-inch pipe to the first dispenser and a 2-inch pipe for the rest of the way.
Dispensers (High Flow, Super-Hi, and Ultra-Hi)
Except for the riser, use a new 3-, 3-1/2-, or 4-inch pipe. If the distance from the STP to the
farthest dispenser is 200 feet or less, use a 3-inch pipe. If the distance exceeds 200 feet, use a
3-1/2- or 4-inch pipe to the first dispenser and a 3-inch pipe for the rest of the way.
Check Valves
(Used on Pumps Only)
See the “PEI publication RP100 and manufacturer’s installation instructions” for information
on the installation of the check valve. Install the check valve as close as it is practical to the
suction unit. It must be gravity-activated with minimal or no spring load. Check valves are
available from Gasboy as an order entry item for internal use to the pumping unit.
Ensure that there is only one check valve in each dedicated line. Use of multiple check valves
can restrict the flow and cause cavitation resulting in significant reduction in the flow rate. If
multiple units are used on a single-line, check valves are required at each pumping unit.
For DEF units, the OPW-60 (M10170B002) is specifically designed to be used with the DEF
being dispensed.