SIMPLEX PACKAGED PUMP SETS (SPS/SKS SERIES) DUPLEX PUMP SYSTEMS OPTIONS Other options: Mechanical, Control Devices and Alarms, Level Controllers, Gauges, and Fill Controllers, and Pumps and Motors
Duplex pump options are used to increase the reliability of a pumping 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 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 valves, strainers, etc.
NO.	DESCRIPTION
345	Multifunction duplex pump controller system providing selectable operating modes, including: 1) Automatic lead pump alternating with automatic lag pump backup 2) Manual lead pump selection, 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) Mode selector switch 2) Pump running indicators for each pump 3) Two 1/3HP, 120V, 2GPM pumps, with check valves
285	Sensor to detect pump flow and indicate failure of pump. Use with duplex pump controller to start lag pump and activate alarm. (Order two for option 345: Duplex Pump Systems.)
346	Running time meter, one for each pump. (Order two for option 345: Duplex Pump Systems.)
347	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, 120 V, 2 GPM pumps, with check valves

SIMPLEX PACKAGED PUMP SETS (SPS/SKS SERIES) PUMPS AND MOTORS OPTIONS Other options: Mechanical, Control Devices and Alarms, Level Controllers, Gauges, and Fill Controllers, and Duplex Pump Systems 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.	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 more information click here.
400	7 GPM pump in lieu of 2 GPM basic unit pump. Requires a ½ HP motor not included in price. (¾” NPT)
410	10 GPM pump in lieu of 2 GPM basic unit pump. Requires a ¾ HP motor not included in price. (¾” NPT)
415	17 GPM pump in lieu of 2 GPM basic unit pump. Requires a 1 HP motor not included in price. (¾” NPT)
417	25 GPM pump in lieu of 2 GPM basic unit pump. Requires a 1½ HP motor not included in price. (1¼” NPT)
NO.	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 more information click here.
420	3 GPM, ½ HP
422	5 GPM, ¾ HP
424	11 GPM, 1 HP
426	13 GPM, 1½ HP
428	28 GPM, 3 HP
430	45 GPM, 5 HP
432	61 GPM, 7½ HP
NO.	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, 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, single phase, motors.
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, 3-phase, motors.
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.
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, 115/230V 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.

Back to Packaged Pump Sets (SPS) Page. Back to Packaged Pump Sets (SPS) Application Guide Page. Back to SPS-10 and SPS-20 Dimensions and Key Features Drawings Page. Back to SPS-30 and SPS-50 Dimensions and Key Features Drawings Page. Back to top of page. Back to Options Page 1. Mechanical, Control Devices and Alarms, Level Controllers, Gauges, and Fill Controllers Request Quote.

Simplex, Inc., 1139 North MacArthur Boulevard, Springfield, IL 62702-2314 800-637-8603, 217-525-6995 (24 Hr.), Fax 217-525-7984