Super
Day Tanks
SST Series
10 gallon
25 gallon
Super Day Tanks
The Simplex SST Series Super
Day Tank, with extensive standard features and more than
125 options, provides a reliable fuel storage and delivery system
for diesel engine generator sets and oil fired boilers. Pump
control, level control, backup level control, level alarms, and
alarm outputs are provided. The standard SST package includes
a UL 142 listed tank, a 2 GPM Super-XL Pump, and a UL 508 listed
SST Controller.
Super-XL Pump
2 GPM, high
vacuum positive displacement gear pump consisting of two pressure
loaded intermeshing, hardened steel, precision ground gear assemblies
within a high strength die cast aluminum housing. Mechanical
shaft seal. Pressure loaded to be self-compensating for internal
wear.
.33 HP, 115-1-60 ODP motor, oversized for high starting torque
Motor overload protection
Recommended Option #070:Priming tee and check valve assembly,
consisting of pump priming tee, fuel line priming tee and check
valve
SST Analog Level Controller
Control Functions
120VAC or 24VDC
Auto-Off-Manual pump control mode switch
Press-to-test pump pushbutton
Pump start-stop automatic level control
Pump overflow control backup
Indication Functions
Indicators are long-life, extra-bright, large display, L.E.D.s
Fuel level
Power available
Switch off (flashing)
Pump running
Low level alarm
High level alarm
Overflow alarm/pump control backup activated
Outputs
Pump start-stop (1HP)
Low level alarm (60W)
High level alarm (60W)
10 gallon and 25 gallon CONSTRUCTION UL 142 aboveground steel tank all seam welded, square, atmospheric tank of heavy gauge steel with internal reinforcements, tested to 5 PSI test pressure Welded flange pipe fittings for fuel return, overflow, vent, drain. Submerged fuel oil supply drop tube. Heavy gauge steel channel feet with mounting holes Separate mechanical and electrical compartments, each with steel housing and removable access covers. FINISH Exterior of tank chemically treated to resist corrosion, primed and finish painted light gray Removable equipment cover painted blue Options |
10 and 25 Gallon Sizes: Dimensions and Weights |
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Fuel Supply Network, Piping and Installation |
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All fuel piping should be of black iron or copper pipe. Pipe sizes should follow engine manufacturer’s recommendations based on KW of generator set.
OVERFLOW PIPE
Should the tank be overfilled as a result of improper adjustment of fuel level controls, fuel spillage or over pressurization of the tank may result. An overflow pipe back to the main storage tank of at least double the size of the fill pipe must be installed with consideration given to length of run and vertical drop. (Use min. 1" I.D.)
A properly sized and installed vent pipe is mandatory. The vent provides a means for tank to breathe when fuel is withdrawn or added to tank. Venting also provides pressure relief in case of overfill or rapid expansion or gasification of contents in event of fire. Portions of this tank may become permanently distorted at pressures above 5 PSI, and may rupture at pressures above the designed maximum withstand pressure of 25 PSI. To avoid over pressurization a vent pipe to atmosphere (outside of the building) of the same diameter as the threaded vent fitting installed in the tank must be provided to extend a minimum of 5 ft. above tank top, however, no portion of this vent should extend or terminate more than 12 ft. above this tank. There must be no low portions or sags in the vent pipe which can trap liquid. Protect the open end by suitable means to prevent entry by insects, foreign matter and precipitation.
NOTE: The emergency vent line capacity specified on the placard at the top of the tank must be considered in order to maintain the fire safety factors established by NFPA 30 and UL 142. If installation is intended to conform and benefit from the inherent safety advantages of the NFPA 30 and UL 142 installation standards, observance of the value is mandatory. It may be necessary to increase the vent pipe diameter if the run is long, or install an emergency vent at the tank.
Every Six Months:
Inspect this tank at least every six months for damage, leakage, or rust on both inside and outside of the tank. Promptly repair or replace any significantly damaged or deteriorated tank.
Annually:
Drain water and sediment from day tank sump at least once each year, or more frequently depending on usage and condition of the fuel.
RECOMMENDED OPTIONS
Main Storage Tank Is Underground:
When the main fuel storage tank is located underground, one of the following options is recommended to assure maintenance of day tank pump prime. Option 070: Check valve on pump intake, Option 080, 083: Solenoid valve on pump intake, Option 090: Foot valve.
Initial Installation:
Hand pump is recommended for use as a back-up to the motor pump and to prime the motor pump on initial installation. Option 015: 5 GPM (5 strokes/gallon) hand pump.
SPECIAL REQUIREMENTS
Above Ground Storage Tank:
When the main fuel storage tank is located above the level of the day tank, the following option is required; Option 375: Gravity inlet control, consisting of in-line solenoid valve, manual isolation valve. Consider also: #170: 50 PSI construction, #190/191: Overflow basin, #383: Overflow tank, #390: Overflow return pump.
