SIMPLEX DAY TANK MECHANICAL OPTIONS
SRS = Simplex Reliant Day Tank, SRM = Simplex Manual Day Tank, SST = Super Day Tank (10 and 25 gallon only)
A = Available, NA = Not Available, S = Standard

Other Day Tank Options:
Containment/Rupture Basins, Control Devices and Alarms, Duplex Pump Systems, Gravity Fed,
Sight Glasses, Level Indicators and Gauges, Pumps and Motors
 
Option 010, 015, Auxiliary Hand Pump, is recommended for installation on all Day Tanks equipped with motor-pumps.
The hand pump is used for initial priming of the fuel line from the main tank and as a backup to the motor-pump.

Option 060, 061 Fuel Strainer, is recommended whenever there is a possibility of fuel contamination.
Day Tank pumps have extremely close tolerances. Fine abrasives in suspension degrade pumping ability and can jam pump.

In order to assure maintenance of pump prime, one of the following options is recommended for installation on all Day Tanks equipped with motor-pumps: Option 070: Check valve; Option 080, 083: Solenoid valve; or Option 090: Foot valve.
 
NO. SRS SRM SST DESCRIPTION
010 A A A Auxiliary hand pump, piston type, 1 GPM capacity. Self-primes to 6 meters (20 feet) of lift. Includes hand pump check valve and hand valve, ½” NPT (Side mounted).
015 A A A Auxiliary hand pump, piston type, 20 gallons per 100 strokes. Self-primes to 6 meters (20 feet) of lift. Includes hand pump check valve and hand valve, 1” NPT (Side mounted).
025 A A A Manual fuel fill cap, 2”, lockable.
040 A A A Wall-mounting brackets
a) 10 and 25 gallon models with rupture basin (order Option 190 separately)
b) 10 and 25 gallon models without rupture basin
050 A A A Pipe stand adapter to raise tank above floor (Pipe legs to be supplied by others).
a) 10, 25 gallon models
b) 50, 75, 100 gallon models
c) 150, 275 gallon models
d) 325, 400 gallon models
060 A A A Fuel Strainer
a) For use with standard 2-5 GPM pumps
b) For use with optional 7-25 GPM pumps (Options 400-428)
c) For use with pumps larger than 25 GPM (Options 428-432)
062 A A A Duplex strainer with selector valve. No break transfer. Inactive strainer may be removed for cleaning. Shipped loose.
a) 1” NPT
b) 1½” NPT
c) 2” NPT
063 A A A Vent cap. Shipped loose for installation at outdoor vent termination. Downdraft design sheds water. Screened against insects. (For 100 gallon models and larger, order Emergency Vent Option 064 also.)
a) 10-25 gallon models (1½” NPT)
b) 50 gallon and larger models (2” NPT)
064 A A A Emergency vent. For use with 100 through 2500 gallon tanks. For relief of pressure only, to provide high capacity venting in the event of fire. Installed on tank. Two required for double-wall tanks, 500 gallon and larger.
a) 4” (100-600 gallon)
b) 6” (800-2500 gallon)
065 A A A Drain hand valve in lieu of plugged fitting (includes siphon-drain piping, 10-400 gallon)
a) 10 and 25 gallon models, ½" NPT, bronze
b) 50 through 400 gallon models, ¾” NPT, bronze
c) 500 through 2500 gallon models, 1” NPT, bronze
d) 10 and 25 gallon models, ½” NPT, fire rated
e) 50 through 400 gallon models, ¾" NPT, fire rated
f) 500 through 2500 gallon models, 1" NPT, fire rated
067 A A A Flame arrestor vent, 2"
068 A NA A Emergency quick-drain. Provides emergency gravity draining of day tank back to main tank via existing plumbing on remote signal (from fire alarm, manual switch, etc.) Drains 100% of day tank capacity at nominal rate of 10 gallons per minute. Disables automatic refill control. Includes N.C., manual reset electrically operated valve which trips open on signal and requires manual reset. Includes manual reset circuit breaker on automatic refill control which trips open on signal and requires manual reset. Includes alarm indicator and remote alarm contacts. Includes manual drain. (Not for use with #390, 383) Consult Simplex.
070 A NA A Priming tee and check valve assembly, consisting of pump priming tee, fuel line priming tee and check valve. Two included with option 345, duplex system.
a) For use with 2-17 GPM pumps
b) For use with option 417; 25 GPM pump and larger
080 A NA A Solenoid valve on pump intake to prevent loss of pump prime or tank flooding. For AC systems. Specify voltage. (Two required with duplex pump options.)
a) ½” NPT, for use with standard 2-5 GPM pumps
b) ¾” NPT, for use with option 400, 410, 415: 7, 10, 17 GPM pumps
c) 1” NPT
d) 1¼” NPT, for use with option 417: 25 GPM pump
e) 2” NPT
083 A NA A Solenoid valve, as above, for DC systems. Specify voltage.
a) ½” NPT
b) ¾” NPT
c) 1" NPT
087 A A A Manual shut-off valve, ball type
a) ½", bronze
b) ¾", bronze
c) 1”, bronze
d) 2", bronze
e) 3", bronze
088 A A A Manual shut-off valve, ball type
a) ½", fire rated
b) ¾", fire rated
c) 1", fire rated
d) 2", fire rated
e) 3", fire rated
090 A A A Foot valve to prevent loss of pump prime, shipped loose.
a) 1” NPT
b) 1½" NPT
c) 2" NPT
093 A A A Fusible link valve, self-closing when acted upon by 165°F or greater.
Supplied loose for remote installation or installed on tank as specified,
a) 1½” NPT
b) 2" NPT
c) 3" NPT
095 A NA A Pressure relief valve.
a) For use with standard 2 GPM pump or option 420, 422: 3, 5 GPM pumps
b) For use with option 400, 410, 415: 7, 10, 17 GPM pump
c) For use with option 417: 25 GPM pump
100 A NA A Pressure gauge with isolation valve, installed on pump outlet; oil filled
a) 2"
b) 4"
101 A NA A Vacuum gauge with isolation valve, installed on pump inlet; oil filled
a) 2"
b) 4"
103 A NA A Flow gauge, in line with pump, to 30 GPM
104 A A A Ball motion flow indicator
105 A A A Temperature gauge
120 A A A Extra 1” NPT pipe connections on tank. (Specify quantity, location and use.)
125 A A A Extra supply suction tube.
a) ½” NPT
b) ¾” NPT
c) 1” NPT
d) 1 ½” NPT
e) 2” NPT
130 A A A Oversize pipe connections, 1¼” to 2½” NPT. (Specify quantity, location and use.)
131 A A A Oversize pipe connections, 3” to 6” NPT. (Specify quantity, location and use.)
140 A A A Special, nonstandard paint color. Tinting of our standard latex or enamel paints only. See below for optional coatings.
141 A A A Epoxy primer, polyurethane finish exterior coating. Specify color. Double price when overflow basin option included.
a) 10 through 100 gallon models
b) 150 through 600 gallon models
c) 800 through 2500 gallon models
180 A NA A Weatherproof Modification—same as standard with addition of complete gasketing and hinged clear plexiglass cover over control panel. NEMA 3R.



SIMPLEX DAY TANK CONTAINMENT/RUPTURE BASIN OPTIONS
Diked Aboveground Tank for Flammable Liquids - UL Listed
SRS = Simplex Reliant Day Tank, SRM = Simplex Manual Day Tank, SST = Super Day Tank (10 and 25 gallon only)
A = Available, NA = Not Available, S = Standard

Other Day Tank Options:
Mechanical, Control Devices and Alarms, Duplex Pump Systems, Gravity Fed,
Sight Glasses, Level Indicators and Gauges, Pumps and Motors
 
NO. SRS SRM SST

DESCRIPTION
190 NA NA A 10 and 25 gallon models, rectangular tank, overflow basin. Open top basin encircles day tank to contain 150% of tank capacity in event of leaks, high pressure rupture, external damage to tank. Includes drain. (200% of tank capacity contact Simplex.)
a) 10 gallon
b) 25 gallon
191 A A A Addition to option 190: Float switch in basin to sense day tank rupture and activate alarm indicator, close contact for remote alarm (3A) and stop day tank pump.
192 A A A Basin drain hand valve
a) 3/8 ", bronze
b) 3/8 ", fire rated
195 A NA A Screen for top of rupture basin to prevent intrusion of debris. Removable.
a) 10 and 25 gallon models
196 S S A
Weatherproof cover for rupture basin. 10–400 gallon models only.
a) 10 gallon
b) 25 gallon



SIMPLEX DAY TANK CONTROL DEVICES AND ALARMS OPTIONS
SRS = Simplex Reliant Day Tank, SRM = Simplex Manual Day Tank, SST = Super Day Tank (10 and 25 gallon only)
A = Available, NA = Not Available, S = Standard

Other Day Tank Options:
Mechanical, Containment/Rupture Basins, Duplex Pump Systems, Gravity Fed,
Sight Glasses, Level Indicators and Gauges, Pumps and Motors
 

NO.

SRS

SRM

SST

DESCRIPTION

260

A

NA

A
Disconnect switch with door interlock for main power inlet connection. Guarded terminals for line connections, pad lockable handle mechanism interlocked to prevent opening of door until switch is turned “off.”

261

A

NA

A
“On-Off” day tank system circuit breaker with short circuit trips. Mounted on day tank.
a) For use with standard and optional single phase, AC motors; DC motors
b) For use with optional 3-phase, AC motors

262

A

NA

A
50VA, 480/240: 120, single phase, control power transformer

265

A

A

A
Day tank heater, 120V, immersion type, thermostatically controlled. Includes low level cutout.

285

A

NA

A
Loss of flow alarm. Sensor detects fuel flow from pump and activates alarm if flow is lost while pump is running. Adjustable sensitivity and time delay. (For option 345: Duplex Systems, order two.)

295

S

A

S
Remote low fuel level alarm dry signal contacts. Provided by separate float switch sensing at 25% of day tank fuel capacity. For use in activation of solid-state annunciator circuits, lamps, small relays. 20VA to 50V DC/240V AC

297

S

A

S
Remote high fuel level alarm dry signal contacts. Provided by separate float switch sensing at 95% of day tank fuel capacity. For use in activation of solid-state annunciator circuits, lamps, small relays. 20VA to 50V DC/240V AC

311

A

NA

A
Local/remote low fuel level alarm. Consists of red alarm light on day tank control panel plus dry signal contacts for remote alarm. Activated by separate float switch sensing 25% of day tank fuel capacity. Dry contacts are 3 PDT rated 10A, 30V DC/240V AC. Specify coil voltage.

312

S

NA

S
Local/remote high fuel level alarm. Consists of red alarm light on day tank control panel plus dry signal contacts for remote alarm. Activated by separate float switch sensing 95% of day tank fuel capacity. Dry contacts are 3 PDT rated 10A, 30V DC/240V AC. Specify coil voltage.

325

S

NA

S
High fuel level emergency pump-stop switch with local and remote alarm.

329

A

NA

A
Low fuel level red light to indicate low fuel in the remote main storage tank. Consists of panel mounted light and terminal block only. Others to supply signal. Specify voltage.

333

A

NA

A
Critical low fuel level alarm-engine shut down. To prevent loss of engine fuel prime from air ingestion due to loss of day tank fuel level. When day tank fuel level reaches imminent failure point, (approximately 1” above engine suction point) separate float switch in day tank closes, providing signal to engine for shutdown, signal for remote annunciator, activation of alarm light on day tank control panel.

334

A

NA

A
Alarm horn installed on day tank



SIMPLEX DAY TANK DUPLEX PUMP OPTIONS
SRS = Simplex Reliant Day Tank, SRM = Simplex Manual Day Tank, SST = Super Day Tank (10 and 25 gallon only)
A = Available, NA = Not Available, S = Standard

Other Day Tank Options:
Mechanical, Containment/Rupture Basins, Control Devices and Alarms, Gravity Fed,
Sight Glasses, Level Indicators and Gauges, Pumps and Motors
 

Duplex pump options are used to increase the reliability of a day tank system through the addition of a second, backup pump and level control. In a duplex system, one pump is designated the “lead” pump and the other is the “lag” pump. The lead pump automatically refills the day tank over the tank’s normal operating range of 50% to full. Normally, once the tank has been initially filled, the fuel level should never drop below 50%. Less than 50% is indicative of either a failure of the lead pump or consumption in excess of pump capacity. The lag pump and its separate level controller, acting as a backup senses a drop in fuel level below 50% and starts the lag pump, which then continues to run, along with the lead pump, until the tank is full.

When ordering, remember that duplex systems include two motor-pumps and therefore require a quantity of two of any option related to the motor or pump, such as solenoid valves, strainers, etc.

NO.

SRS

SRM

SST

DESCRIPTION
345 A NA A Multifunction duplex pump controller system providing selectable operating modes, including:

1) Automatic lead pump alternating with automatic lag pump backup
2) Automatic alternating, automatic lag pump backup
3) Automatic twin pump operation (both pumps run simultaneously) automatic level control backup
4) Manual operation

Basic System includes the following:

1) All SST controller features
2) Mode selector switch
3) Pump running indicators for each pump
4) Two 1/3 HP, 120V, 2 GPM pumps, with check valves
346 A NA A Running time meter, one for each pump. (Order two for option 345: Duplex Pump Systems.)
347 A NA A Manual duplex pump selector switch. Used to select one of two pumps or both pumps for automatic operation. In single pump mode, off-line pump not available for automatic operation. Includes:

1) Selector switch with positions “pump-1,” “pump-2,” “both”
2) Pump running lights
3) Two 1/3 HP, 120V, 2 GPM pumps, with check valves
349 A NA A Basic PLC based level and duplex pump controller replaces basic SST controller and duplex relay board



SIMPLEX GRAVITY FED DAY TANK OPTIONS
SRS = Simplex Reliant Day Tank, SRM = Simplex Manual Day Tank, SST = Super Day Tank (10 and 25 gallon only)
A = Available, NA = Not Available, S = Standard

Other Day Tank Options:
Mechanical, Containment/Rupture Basins, Control Devices and Alarms, Duplex Pump Systems,
Sight Glasses, Level Indicators and Gauges, Pumps and Motors
 
A day tank will be gravity-siphon fed when:
1) The main tank is above the day tank.
2) The main tank is on the approximate same grade as the day tank and the level in the main tank is at times above the level in the day tank and/or supply piping runs overhead.

If any of these conditions exists, a positive fuel shut-off automatic control must be added to the day tank. Simplex recommends options 060, 080, 087, 376, 377, and 190/191 for all gravity-fed systems. Add options 383, 390, and 170 if desired as an added precaution. Normally, the standard pump is retained on the day tank to permit automatic priming of the line and to overcome pipe friction. Delete pump option (X002) only if system is self-priming and gravity flow is adequate rate to refill tank.

NO.

SRS

SRM

SST

DESCRIPTION
060
080
087
A A A Solenoid valve, with fuel strainer, on intake to prevent tank flooding
376 A A A Manual reset, normally open, electrically operated valve. Tripped “closed” by contacts of high level alarm. Requires manual reset/opening. “Overflow”/“Fill valve tripped” alarm indicators and contact activate.
a) ¾”
b) 1”
c) 1½”
377 A NA A Siphon-break solenoid valve for remote installation. N.O., ¼” valve installed in tee at highest point of supply line. Used to break siphon when open, make siphon when closed. Connected to tank level controller to energize (close) whenever fuel required
378 A NA A Anti-siphon valve, adjustable type for suction side service
a) 1½”
b) 2”
383 A NA A Overflow-return tank: Tank designed to automatically drain only in order to return overflow from adjacent day tank to remote main tank. Includes all features of a standard SST Day Tank, except level controller arranged for automatic and full draining. Pump starts at 20% and stops at virtual empty level. Overflow alarm activates at 30%.
Includes pump suction tube, check valve to prevent back flow. Add optional pumps as required.
390 A NA A Overflow return pump and controller added to standard day tank. Use this option for gravity-siphon fed day tanks or whenever the day tank overflow line runs above the day tank. Adds second pump which functions solely as overflow return pump (first pump remains as fill pump). Activates at overflow-alarm point and pumps down to 75%. Overflow control includes “overflow-return” “pump armed” and “overflow-return pump running” indicators, and test push-button. “Overflow” alarm activates and latches, but day tank automatic refill capability is maintained. Option price includes standard 2GPM, 115-1-60 pump and check valve. To add higher capacity pumps, refer to optional pumps and motors.
190
191
A A A Overflow basin and overflow alarm
215 A S A Mechanical dial level gauge
067 A A A Flame arrestor vent, 2"



SIMPLEX DAY TANK SIGHT GLASSES, LEVEL INDICATORS, GAUGES,
AND FUEL OIL COOLERS OPTIONS
SRS = Simplex Reliant Day Tank, SRM = Simplex Manual Day Tank, SST = Super Day Tank (10 and 25 gallon only)
A = Available, NA = Not Available, S = Standard

Other Day Tank Options:
Mechanical, Containment/Rupture Basins, Control Devices and Alarms,
Duplex Pump Systems, Gravity Fed, Pumps and Motors
 

NO.

SRS

SRM

SST

DESCRIPTION
211 A A A Safety sight glasses consisting of glass tube with full steel guard and self-closing isolation valve. Not available with option 190 Overflow Basin.
212 A NA A Electric level gauge, 115V AC, for remote installation.
213 A NA A Digital level indicator with 4-20ma output
214 A NA A Fuel flow indicator, digital, 6-digit: displays instantaneous fuel flow and totalizes flow.
215 A S A Mechanical dial level gauge
396 A NA A Fuel Oil Coolers (installed in return line). Radiator with electric fan, flow switch, installed and wired on day tank



SIMPLEX DAY TANK PUMPS AND MOTORS OPTIONS
SRS = Simplex Reliant Day Tank, SST = Super Day Tank (10 and 25 gallon only)
All pumps and motors listed below are available for SRS and SST.

Other Day Tank Options:
Mechanical, Containment/Rupture Basins, Control Devices and Alarms, Duplex Pump Systems, Gravity Fed,
Sight Glasses, Level Indicators and Gauges


Note: The following optional pumps and motors are in lieu of basic unit.
The 2 GPM Super-XL pump and the 1/3 HP, 230V AC, single-phase, 60 Hertz motor
are the standard pump and motor provided with the basic unit.
Pump capacity at 1725 RPM. 50 Hz operation reduces capacity to 83%.
 

NO.

DESCRIPTION
Super-XL Pumps
High-tech hydraulic pump featuring pressure-loaded, self-compensating gears and a mechanical shaft seal designed for applications where the pump starts and stops on demand. For details click here.
400 7 GPM highlift pump in lieu of 2 GPM basic unit pump. Requires a ½ HP motor not included in price. ¾” NPT
410 10 GPM highlift pump in lieu of 2 GPM basic unit pump. Requires a ¾ HP motor not included in price. ¾” NPT
415 17 GPM highlift pump in lieu of 2 GPM basic unit pump. Requires a 1 HP motor not included in price. ¾” NPT
417 25 GPM highlift pump in lieu of 2 GPM basic unit pump. Requires a 1½ HP motor not included in price. Option 110 required, 10-275 gallon tanks. 1¼” NPT
420 Series Pumps
High performance cast iron/steel rotor pump for use with heavy fuel or continuous circulation systems where pump runs virtually nonstop. HP is minimum motor size. For details click here.
418 1.8 GPM, 1/3 HP
420 3 GPM, ½ HP
422 5 GPM, ¾ HP
424 11 GPM, 1 HP
426 13 GPM, 1½ HP, SPS/SKS Pump Set required
428 28 GPM, 3 HP, SPS/SKS Pump Set required
430 45 GPM, 5HP, SPS/SKS Pump Set required
432 61 GPM, 7.5HP, SPS/SKS Pump Set required
Transformers and Motors
3-phase motors may be operated at 190/380V, 50Hz. 50Hz operation reduces pump capacity to 5/6.
510 Transformer, 480/120V AC, single phase, 50-60 Hertz for use with standard and optional 1/3 HP motors
511 Transformer, 480/120V AC, single phase, 50-60 Hertz for use with optional ½ HP motors
605 1/3 HP, 230V AC, single phase, 60 Hertz motor, ODP
615 1/3 HP, 110V AC, single phase, 50 Hertz motor, ODP
616 1/3 HP, 220V AC, single phase, 50 Hertz motor, ODP
621 1/3 HP, 230/460V AC, 3-phase, ODP motor with starter. Specify voltage.
622 1/3 HP, 230/460V AC, 3-phase, TEFC motor with starter. Specify voltage.
630 1/3 HP, 12V DC motor
635 1/3 HP, 24V DC motor
645 1/3 HP, 115V AC, single phase, 60 Hertz motor, TEFC
700 ½ HP, 115V AC, single phase, 60 Hertz motor, ODP
705 ½ HP, 230V AC, single phase, 60 Hertz motor, ODP
715 ½ HP, 110V AC, single phase, 50 Hertz motor, ODP
716 ½ HP, 220V AC, single phase, 50 Hertz motor, ODP
721 ½ HP, 230/460V AC, 3-phase, ODP motor with starter. Specify voltage.
722 ½ HP, 230/460V AC, 3-phase, TEFC motor with starter. Specify voltage.
730 ½ HP, 12V DC motor
735 ½ HP, 24V DC motor
745 ½ HP, 230/115V AC, single phase, 60 Hertz motor, TEFC
768 Single phase magnetic motor starter with overload relay and control transformer. Includes disconnect switch with short circuit protection. For 115V AC or 230V AC motors. Supplied installed on day tank.
770 3-phase magnetic motor starter with overload relay and control transformer. Includes disconnect switch with short circuit protection. For 230V AC or 460V AC motors. Supplied installed on day tank.
800 ¾ HP, 115V AC, 60 Hertz, single phase motor, ODP
805 ¾ HP, 230V AC, 60 Hertz, single phase motor, ODP
822 ¾ HP, 230/460V AC, 60 Hertz, 3-phase motor, TEFC, with motor starter. Specify voltage.
825 ¾ HP, 230/460V AC, 60 Hertz, 3-phase motor, with motor starter, ODP. Specify voltage.
845 ¾ HP, 115/230V AC, 60 Hertz, single phase motor, TEFC. Specify voltage.
900 1 HP, 115V AC, 60 Hertz, single phase motor, ODP
905 1 HP, 230V AC, 60 Hertz, single phase motor, ODP
922 1 HP, 230/460V AC, 60 Hertz, 3-phase motor, TEFC, with motor starter. Specify voltage.
925 1 HP, 230/460V AC, 60 Hertz, 3-phase motor, with motor starter, ODP. Specify voltage.
945 1 HP, 115/230V AC, 60 Hertz, single phase motor, TEFC. Specify voltage.
Optional motors requiring SPS/SKS Pump Set when used with 10 through 275 gallon models
1000 1½ HP, 115V AC, 60 Hertz, single phase motor, ODP
1005 1½ HP, 230V AC, 60 Hertz, single phase motor, ODP
1022 1½ HP, 230/460V AC, 3-phase, 60 Hertz, TEFC, with motor starter. Specify voltage.
1025 1½ HP, 230/460V AC, 3-phase, 60 Hertz, with motor starter, ODP. Specify voltage.
1045 1½ HP, 120/230V AC, single phase, 60 Hertz, TEFC. Specify voltage.
1100 2 HP, 115V AC, 60 Hertz, single phase motor, ODP
1105 2 HP, 230V AC, 60 Hertz, single phase motor, ODP
1122 2HP, 208V AC, 3-phase, 60 Hertz motor, ODP
1125 2 HP, 230/460V AC, 60 Hertz, 3-phase motor with motor starter, ODP. Specify voltage.
1145 2 HP, 115/230V AC, 60 Hertz, single phase motor, TEFC. Specify voltage.
1200 3 HP, 115V AC, 60 Hertz, single phase motor, ODP
1205 3 HP, 230V AC, 60 Hertz, single phase motor, ODP.
1225 3 HP, 230/460V AC, 60 Hertz, 3-phase motor with motor starter, ODP. Specify voltage.
1305 5 HP, 230V AC, 60 Hertz, single phase motor, ODP
1322 5HP, 230V AC, 3-phase, 60 Hertz motor, TEFC
1325 5 HP, 230/460V AC, 60 Hertz, 3-phase motor with motor starter, ODP. Specify voltage.
1405 7½ HP, 230V AC, 60 Hertz, single phase motor, ODP
1422 7½HP, 208V AC, 3-phase, 60 Hertz motor, ODP
1425 7½ HP, 230/460V AC, 60 Hertz, 3-phase motor with motor starter, ODP. Specify voltage.


Mechanical, Containment/Rupture Basins, Control Devices and Alarms, Duplex Pump Systems, Gravity Fed,
Sight Glasses, Level Indicators and Gauges, Pumps and Motors

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Simplex, Inc., 5300 Rising Moon Road, Springfield, IL 62711-6228
800-637-8603 • 217-483-1600 (24 Hr.) • FAX 217-483-1616