Variable Speed
Variable Speed
Variable speed pumps are controlled by the VFC™ variable frequency controller which provides control for both 2 Hp and 4 Hp variable speed submersible turbine pumps.
FILL CARS FASTER WITH VARIABLE SPEED
As station size and volumes have continued to grow, more marketers are choosing variable speed to meet the high fuel throughput demands while gaining additional benefits only variable speed can offer.
Variable speed systems ramp up the system’s horsepower as needed to provide optimal flow rates at fueling points. This results in faster and more consistent flow rates at peak business times compared to fixed speed systems.
Higher Throughput
Variable speed systems deliver faster and more reliable flow rates than fixed speed systems resulting in higher throughput at virtually the same total cost of ownership.
Meet Your Needs
The STP can be adjusted at installation to perform at a maximum per-nozzle flow rate of 10 gpm (38 lpm) based on the specifications of your piping and dispensing system.
2 Hp or 4 Hp
Variable speed 2 Hp pumps provide constant 10 gpm (38 lpm) for up to eight fueling positions operating simultaneously whil 4 Hp pumps 10 gpm (38 lpm) for up to 12 fueling position.
Hydraulic hammer is as a rapid pressure spike that is the result of a sudden stoppage in flow in a pressurized piping system. Hydraulic hammer can be exaggerated in a system that utilizes a high pressure fixed speed pump. Variable speed helps to minimize these effects and the wear it can cause on system components.
Hydraulic Hammer
A fixed speed pumping system is incapable of changing the flow rate dependent upon demand and as a result, hydraulic hammer is likely to result when flow is interrupted.
System Fatigue
Hydraulic hammer may result in system fatigue and intensified wear to system components such as diaphragm valves in multi-product dispensers, leak detectors or hanging hardware.
Minimize The Effects
A variable speed STP will ramp up and down to provide only the pressure required to meet demand, significantly minimizing the effects of hydraulic hammer.
The MagVFC™ variable frequency controller features a dual 7-segment display that displays running status and fault codes. A fault history on the controller also provides an enhanced troubleshooting process with faults like:
Fault Detection Display Codes
A fault history on the controller also provides an enhanced troubleshooting process with faults like these:
UL = Underload: Dry run or blocked PMA intake
LI = Low Incoming: Input power under voltage
LU = Locked Up: Overload at PMA startup
SC = Short Circuit: Short typically from controller to PMA
SU = Shorted Upper: Short typically in controller
OC = Open Circuit: Broken connection to PMA
Er = Extended Run: No power change for 60 minutes
HO = Hot Operation: Excessive controller temp / fan protection
Lr = Locked Rotor: Overloaded while PMA is running
With variable speed conversion kits you can convert your existing fixed speed pump to variable speed. As an affordable upgrade, the conversion requires a minimal investment as it works with your existing system to increase flow as more fueling points go live, delivering the flow you need, as you need it.
In the Kit
The all-in-one upgrade kits inculde a variable speed pump motor assembly, MagVFC™, and a four-wire contractor’s plug.
Compatiblity
Variable speed upgrade kits are compatible with both FE PETRO® brand 4" submersible turbine pumps as well as competitive pumps.
Easy Installation
Easy installation, consisting of swapping out the pump motor and controller, as well as modifying the submersible length and wiring if applicable.
Standard Features
- Variable speed models are available in variable lengths only.
- Check valve: 2¾" diameter fluorocarbon seal constructed with cast aluminum body and steel backing washer.
- Pressure relief valve: available in four pressure relief settings, integral to check valve. Standard model relieves at 40 psi and resets above 35 psi.
- Syphon: venturi-type syphon primer supplied with every submersible. Syphon check valve and secondary syphon sold separately.
- Air eliminator: every submersible includes a tank return path with one-way check valve to provide active air elimination.
- Electrical disconnect: electrical yoke for positive contractor disconnect during service.
Pump Motor
- 2 hp or 4 hp, variable speed, two-stage centrifugal type pump motor with integral, automatic, thermal overload protection.
- Max. flow: 2 hp = 110 gpm, 4 hp = 140 gpm.
- Max. pressure: selectable operating pressure on MagVFC™ between 24 psi and 42 psi deadhead.
- Available with MagShell™, which results in 45% increased flow area around motor.
Power Requirements - 60Hz & 50Hz
IST models can only be powered by a MagVFC™ or EcoVFC™ controller:
- 2 hp models can operate with single phase incoming power supply to the MagVFC™.
- 2 hp and 4 hp models operate with three-phase incoming power supply to the EcoVFC™.
- Incoming power supply to the MagVFC™ can be 200-250 VAC, 50 Hz and 360-440 VAC, 50 Hz for the EcoVFC™.
- MagVFC™ outputs a three-phase, variable frequency signal, valid for FE Petro variable speed pumps only.
- 2 hp max. motor draw: 9 Amps.
- 4 hp max. motor draw: 15 Amps.
- MagVFC™ max. line draw: 20 Amps.
Liquid Compatibility
- Max. liquid viscosity: 70 SSU at 60 °F (15 °C).
- IST models imply alcohol-gasoline compatibility for fuel mixtures containing up to 85% ethanol, and 20% MTBE, 20% ETBE or 17% TAME with gasoline.
- IST models can also be used with diesel fuels, fuel oils, kerosene, Avgas and jet fuels in a non-gelled pourable state.
- All wetted elastomers are made of a high grade, fluorocarbon compound.
Approvals/Certifications
- Consult factory for applicable approvals.
- Franklin Fueling Systems is an ISO 9001 Certified Manufacturer.
Variable Frequency Controllers
| Model Number | Description |
|---|---|
| 5874202800 | MagVFC™, 2 Hp or 4 Hp Variable Frequency Controller, 220 V, one required per STP |
| 5874202900 | EcoVFC™, 2 Hp or 4 Hp Variable Frequency Controller, 380 V, one required per STP |
Variable Speed Conversion Kits
| Model Number | Description |
|---|---|
| 400693901 | Kit with 2 Hp variable speed non-MagShell™ (PMA VS2) |
| 402671901 | Kit with 4 Hp variable speed non-MagShell™ (PMA VS4) |
Variable Speed Conversion Kits - AG compatible
| Model Number | Description |
|---|---|
| 400693905 | MagVFC & variable speed conversion kit with AG compatible 2 Hp variable speed non-MagShell™ |
| 400693906 | MagVFC & variable speed conversion kit with AG compatible 2 Hp variable speed with MagShell™ |
| 402671905 | MagVFC & variable speed conversion kit with AG compatible 4 Hp variable speed non-MagShell™ |
| 402671906 | MagVFC & variable speed conversion kit with AG compatible 4 Hp variable speed with MagShell™ |
Featured
Brochures
| Title | Type | Size | |
|---|---|---|---|
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FFS-0555 Variable Speed Pumps Brochure.pdf | 0.89 MB | |
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FFS-0370 (50 Hz) Variable Speed Submersible Turbine Pumps Datasheet.pdf | 1.82 MB | |
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FFS-0355 (60 Hz) Variable Speed Submersible Turbine Pumps Datasheet.pdf | 0.62 MB | |
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FFS-0027 ECOVFC Spanish.pdf | 3.84 MB |
Catalogs
| Title | Type | Size | |
|---|---|---|---|
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FFS-0216 (UL) FFS Product Catalog.pdf | 62.67 MB | |
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FFS-0807 (EN) Product Catalogue.pdf | 48.43 MB | |
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FFS-0367 (UL) Site Starters Ordering Guide.pdf | 52.07 MB |
Manuals
| Title | Type | Size | |
|---|---|---|---|
 |
228001101 MagVFC Install & Owner's Guide.pdf | 1.17 MB | |
 |
400604005 STP-IST Installation Guide.pdf | 2.88 MB | |
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400604005TK STP-IST Installation Guide.pdf | 2.9 MB | |
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228001102 r9 EcoVFC Installation Guide.pdf | 1.3 MB | |
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228001102RU r9 EcoVFC Installation and Owner's Manual.pdf | 1.43 MB | |
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228001102IT-r9 EcoVFC Installation Guide.pdf | 1.27 MB | |
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TB0823-02 FE Petro Annual Maintenance Recommendations.pdf | 0.03 MB |