Submersible Turbine Pumps

4 Hp Pumps

4HP Pump Hero.psd
4HP Pump Hero.psd 4HP Pump Hero.psd 4HP Pump Hero.psd
Submersible Turbine Pumps

4 Hp Pumps

With faster fill times during peak hours and power savings during non-peak hours, FE PETRO® 4 Hp variable speed submersible pumps deliver maximized profits while mitigating operating expenses.

STP-Group-Wide.psd
SUBMERSIBLE TURBINE PUMPS

Since hitting the market in 1988, FE PETRO® Submersible Turbine Pumps (STPs) have developed a reputation as the standard in performance, quality and dependability with innovative features only available from Franklin Electric. It is, and always will be about filling cars faster and smarter.

4 Hp, 2Hp, 1 1/2 Hp, 3/4 Hp, and 1/3 Hp options


Biofuel compatibility handles ethanol / biodiesel blends


Advanced protection prevents corrosion / extends pump life


Variable speed maximizes profits with high flow rates


MagShell® increases flow rates for higher throughput

Variable length adjustment ensures perfect onsite fit


Active air elimination for smooth fuel delivery


Safe and simple service disconnects and pressure relief


Intake filter screen keeps debris out / reduces wear


Intelligent pump controllers maximize uptime

 

STP-Pumps 7-Wide.psd
WE SET THE STANDARD

With best-in-class flow rates backed by a long history of dependability, FE PETRO® STPs are responsible for delivering fuel to thousands of customers around the globe, day in and day out.

STP-Icon-Variable Speed.psd

 

With faster fill times during peak hours and power savings during non-peak hours, variable speed submersible pumping systems allow you to maximize profits with consistent flow rates while mitigating operating expenses and system wear.

STP-Icon-Magshell.psd

 

The patented stainless steel MagShell®, available on 2 Hp and 4 Hp pumps, is designed to maximize flow rate capabilities, potential throughput, and profits. By expanding the pump motor shell, the MagShell® increases the area for product flow by 45%.

STP-Icon-TPI.psd

 

Network pump controllers with the EVO™ Series for remote enhanced pump monitoring and control features including pump-in-water automation, clogged intake escalation, tank leveling/priority, and more.

 

 

STP-Pumps-Wide.psd
MAXIMIZE PUMP PERFORMANCE

Upgrade your pump with components designed for enhanced performance and reduced maintenance.

STP-AP.psd

Stop Corrosion in its Tracks

Advanced Protection safeguards pumps from corrosion. It builds on Alcohol-Gas compatible pumps with upgraded materials including powder-coating, E-coating, and stainless steel components for enhanced durability. 

Advanced Protection is available as a factory installed option on any STPAG and IST biofuel compatible STPs. Choose this added level of protection for Ultra Low Sulfur Diesel applications, aboveground tanks, marinas, and aviation applications.

 

Upgraded Components

Stainless steel relief valve, fasteners, and internal hardware


E-coated and powder-coated exterior metal castings


Stainless steel tank riser


Stainless steel column pipe


E-coated and powder-coated pump discharge head


Stainless steel pump motor assembly shell

STP-MagShell.psd

Fill Cars Faster with MagShell®

Available on FE PETRO® 2 Hp and 4 Hp PMAs, the MagShell® provides an expanded flow area, creating significantly higher flow rates equivalent to having one more nozzle open during peak operating times. 

A 4 Hp variable speed STP with MagShell® provides the highest flow rates of any single 4" submersible pump available on the market today.

STP-CCS.psd

Corrosion Control™

When combined with an FE PETRO® pump, the Corrosion Control™ Water Separator provides proactive in-tank corrosion control by removing tank bottom corrosion contributors including water and acid while taking up minimal space inside the containment sump

 

Remove Water & Acid

The Water Separator removes any water/acid mixture off the bottom of the diesel tank and separates it from the clean fuel. The water/acid is collected in the vessel for disposal while the clean fuel is directed back into the tank.


Powered by the Pump

The Water Separator uses the flow of fuel created by a 4" FE PETRO® submersible turbine pump to generate a vacuum which suctions the tank bottom.


Easy Maintenance

The element-free vessel has no filter to change, eliminating ongoing replacement costs. The collected water/acid mixture is removed 2-3 times per year by a service technician, keeping the tank clear of the harmful corrosion-causing mixture.


System Automation

Control and monitoring are managed through an EVO™ Series console, which automates separator run times and signals when the vessel is ready for emptying. Get access to system data including Water Separator status, water levels, flow status, and more.

 

STP-IFS.psd

Filter Fuel Without Sacrificing Performance

Stop debris from entering the pumping system and causing system damage or slowdowns. An Intake Filter Screen (IFS) provides fuel filtration for the entire system down to about the size of a grain of sand. 

The self-cleaning IFS keeps harmful debris, sediment, and tank corrosion from entering the pumping system, minimize service events including dispenser filter changes.

 

 

PUMP SELECTION GUIDE

Meet the flow rate needs for your application.

 

 

STP-Controller Group-Wide.psd
INTELLIGENT PUMP CONTROL

Maximize efficiency, reliability, and control with intelligent pump controllers. Designed to optimize fuel flow and system performance, these intelligent controllers provide advanced functionality to meet the demands of any fueling operation.

STP-Controllers-Variable.psd

MagVFC™ Variable Speed Controllers

For applications with varying demand, the MagVFC™ variable frequency controller provides control for both 2 Hp and 4 Hp variable speed STPs.

The MagVFC controller adjusts the pump's speed to maintain optimal flow rates, resulting in faster, more consistent fueling compared to fixed speed systems, all while minimizing energy consumption and costs.

Automatically adjusts pump speed dynamically for optimal flow rates


Provides more consistent fueling compared to fixed speed systems


Maintains stable performance with fluctuating demand


Reduces energy consumption and system wear


Compatible with FE PETRO® 2 Hp and 4 Hp variable speed pumps

LEARN MORE
STP-Controllers-Fixed.psd

Guardian Series™ Fixed Speed Controllers

The Guardian Series™ controllers provide intelligent submersible turbine pump (STP) control and protection for fixed speed pumps.

Built upon the solid FE PETRO® brand smart controller platform, Guardian Series™ controllers feature an enhanced user interface, greater functionality, and facilitate higher performance compared to standard control boxes.

Intelligent submersible turbine pump control and protection


Enhanced user interface for easy setup & troubleshooting


Overload and underload protection to prevent pump damage


Dry-run detection to avoid unnecessary wear


Compatible with FE PETRO® single- & three-phase fixed speed STPs

LEARN MORE

 

 

STP-Variable Speed Controllers-Wide.psd
VARIABLE SPEED PUMPING

The FE PETRO® MagVFC™ Variable Frequency Pump Controller brings advanced performance and efficiency to fueling operations. Designed to optimize flow rates, this intelligent controller adjusts pump motor speeds in real time to maintain consistent fuel flow, even during peak demand.

STP-Icon-Faster.psd

 

With faster fill times during peak hours and power savings during non-peak hours, FE PETRO® 2 Hp and 4 Hp variable speed submersible pumping systems allow operators to maximize profits while mitigating operating expenses.

STP-Icon-Consistent.psd

 

Variable speed pumps ensure consistent flow rates, even during peak demand, providing customers with faster fueling and a smoother experience at the dispenser, reducing wait times and improving overall satisfaction.

STP-Icon-Equipment.psd

 

Minimize sudden pressure spikes, known as hydraulic hammer, that occur during sudden stoppages in flow. These spikes can be exaggerated in fixed speed systems and lead to accelerated equipment wear and damage.

 

 

UPGRADE TO VARIABLE SPEED

Convert existing fixed speed pumps for enhanced performance.

 

 

STP-Pumps TPI 3-Wide.psd
ADVANCED PUMP CONTROL

Turbine Pump Interface (TPI) is a powerful tool that creates a network between intelligent pump controllers and EVO™ Series fuel management system consoles. 

Turbine Pump Interface

Through TPI, the EVO™ has access to the submersible pumping system status and the capability to react with intelligence that pump controllers alone cannot. The devices share data to provide enhanced system capabilities.

Detect and automatically react to offline systems


Faster pump reset and avoided downtime


Enable remote troubleshooting


Prevent maintenance calls and trip charges


Prevent fuel runouts, dry runs, and tank overfills

 

 

STP-Pumps LD-Wide.psd
LEAK DETECTION

Preventing and detecting fuel leaks is critical for maintaining compliance and protecting the environment. Leak detection systems help identify leaks early, reducing the risk of costly downtime and regulatory fines.

STP-LD-MLD.psd

Mechanical Leak Detectors (MLD)

MLDs provide a simple, reliable way to detect leaks in pressurized fuel lines. These devices respond to pressure drops by restricting flow, alerting operators to potential leaks without requiring electronic monitoring.

Capabilities

3rd Party Certifications UL, cUL, National Workgroup
Fuel Compatibility Varying models for different fuel/biofuel combinations
Installation Method Requires 2" NPT Leak Detector Port or Tee Housing
Startup Requirements Manual 3 gph Test after install to verify
Testing Methodology Pump ON testing after Pump OFF line pressure < 3 psi
Leak Test Result Validation None - restricts output until next dispense cycle
3 gph Leak Detection Yes - restricts pump output to 3 gpm system flow
Precision Leak Detection None - smaller leaks will increase test time
Line Test Results Reporting Operator restricted (slow flow) reporting only

 

LEARN MORE
STP-LD-ELLD.psd

Electronic Line Leak Detection (ELLD)

ELLD systems offer advanced monitoring with real-time data and automated alerts. ELLD continuously monitors line pressure, detecting leaks with precision accuracy, enabling remote diagnostics for improved operational efficiency.

Capabilities

3rd Party Certifications UL, cUL, National Workgroup
Fuel Compatibility Designed for various motor fuels
Installation Method Requires standard 2" Female NPT Opening
Startup Requirements EVO™ Series process AUTO-LEARN® and verifies install
Testing Methodology Pump OFF testing after every dispense cycle
Leak Test Result Validation Yes - thermally stabilizes line before declaring results
3 gph Leak Detection Yes - positive pump shutdown
Precision Leak Detection Yes - 0.2 gph monthly and 0.1 gph annual options
Line Test Results Reporting EVO™ Series history reporting options

 

LEARN MORE

4" Submersible Pump Components & Key Dimensions

4 Submersible Pump Components & Key Dimensions.psd

1. Manhole

2. Leak Detector

3. Manifold

4. Containment Sump

5. 4" Riser

6. Tank Adapter

7. Tank Manway

8. Column Pipe

9. Variable Length Coupler

10. Pump Motor Assembly (PMA)

11. End bell

12. Line Test Port, ¼" NPT

13. Leak Detector Port, 2" NPT

14. Syphon Port, ¼" NPT

15. Tank Port, ¼" NPT

16. Riser Pipe, 4" NPT

17. Discharge Outlet, 2" NPT

Notes:
1. Effective tank diameter (ETD) = Inside tank diameter (to top of 4" bung), including tank manway and/or sump adapter.

2. Model length (A) = ETD plus riser length minus bottom clearance minus 1" thread engagement.

3. Riser length (B) = Bury depth (to top of tank) minus pump head clearance minus tank manway and/or minus sump adapter.

Optional Features

Biofuel Blend Compatibility
FE PETRO® pumps are UL listed with both UL79A (up to 85% Ethanol) and UL79B (up to 20% or 100% Biodiesel).

Advanced Protection
Stop corrosion in its tracks. Special powder-coated, e-coated, and stainless steel components defend your pump in the tank and in the sump from accelerated corrosion.

Turbine Pump Interface
Remote enhanced pump monitoring and control including pump-in-water automation, clogged intake escalation, tank leveling, and tank priority.

Intake Filter Screen
Avoid system damage, pumping slowdowns, and reduce filter changes by keeping harmful tank debris, sediment, and corrosion from entering the pumping system with this factory-installed option.

Standard Features

Variable Speed
With faster fill times during peak hours and power savings during non-peak hours, variable speed submersible pumping systems allow you to maximize profits with consistent flow rates while mitigating operating expenses.

MagShell®
The patented stainless steel MagShell® is designed to maximize flow rate capabilities, potential throughput, and profits. By expanding the pump motor shell, the MagShell® increases the area for product flow by 45%.

Variable Length
The patented telescoping pump shaft lets installers adjust the length of the pump onsite for the perfect fit.

Active Air Eliminator
FE PETRO® STPs come standard with active air elimination, which eliminates air through the highest point in the pump head at all times when the pump is running, assuring air does not pass into discharge piping.

Safety and Ease of Maintenance
FE PETRO® STPs include a contractor electrical disconnect, which requires loosening only one bolt, allowing motor wiring to be disconnected without venting the dangerous tank vapors into the sump when servicing FE PETRO® submersible products.

Simple Servicing
If ever required, the pump can be easily removed from the tank by unthreading three bolts. There is no need to disconnect the syphon system or to remove the leak detector from the system to service the STP.

Manual Pressure Relief
As a standard FE PETRO® feature, a vent screw is provided to bleed line pressure to zero when necessary. By turning this screw, product is diverted back to the tank, dropping line pressure to zero. This reduces fuel discharged into the sump manhole or dispenser pan during servicing, further protecting service technicians and the environment.

Outlast, Outperform with Franklin Electric Inside
FE PETRO® STPs are powered by the legendary Franklin Electric motor and built for long term performance. Franklin Electric-powered submersible pumps provide maximum uptime and a proven track record in the fueling industry that spans more than four decades. They feature best-in-class flow rates and a long history of dependability.

Quality Certification
Franklin Fueling Systems is an ISO 9001 Certified Manufacturer.

General

  • Variable speed models are available in variable lengths only.
  • Check valve: 2¾" (70mm) 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 (2.8 bar) and resets above 35 psi (2.4 bar).
  • 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

  • 4 Hp, variable speed, two-stage centrifugal type pump motor with integral, automatic, thermal overload protection.
  • 60 Hz Max. pressure: selectable operating pressure on MagVFC™ between 24 psi and 42 psi deadhead.
  • 50 Hz Max. pressure: selectable operating pressure on EcoVFC™ between 1.65 bar and 2.90 bar deadhead.
  • Available with MagShell® which results in 45% increased flow area around motor.

60 Hz Power Requirements

  • Variable speed pumps can only be controlled by a MagVFC™ variable frequency controller.
  • VS4 models require three-phase incoming power supply to the MagVFC™ for proper operation.
  • Incoming power supply to the MagVFC™ can be 200-250 VAC, 50 or 60 Hz.
  • MagVFC™ outputs a three-phase, variable frequency signal, valid for FE PETRO® variable speed pumps only.
  • MagVFC™ max. line draw: 20 Amps.
  • Max motor draw: 15 Amps.

Liquid Compatibility

  • Max. liquid viscosity: 70 SSU at 60 °F (15 °C).
  • STP variable speed models are UL listed for fuel mixtures containing up to 10% ethanol, and 20% MTBE, 20% ETBE or 17% TAME with gasoline.
  • IST/ISTAP variable speed models are UL and cUL listed for fuel mixtures containing diesel fuel with up to 20% Biodiesel, 100% Biodiesel, up to 85% ethanol with gasoline, and 20% MTBE, 20% ETBE or 17% TAME with gasoline.
  • All variable speed 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.

Fuel Compatibility for All Submersible Turbine Pumps

STP Standard Submersible Turbine Pumps with Fixed or Variable Speed Pump Motor Assembly

  • UL79  for petroleum dispensing products intended for use with gasoline or gasoline/ethanol blends with nominal ethanol concentrations up to 10 percent (gasohol, E10), diesel fuel, diesel/biodiesel blends with nominal biodiesel concentrations up to 5 percent (B5), kerosene, or fuel oil.
  • 20% MTBE, 20% ETBE or 17% TAME with gasoline.

STPAG, STPAP, IST, ISTAP Alcohol-Grade Compatible and Advanced Protection Fixed or Variable Speed  Submersible Turbine Pumps

  • UL79A for gasoline and gasoline/ethanol blends with nominal ethanol concentrations up to 85 percent (E0 - E85) for products intended for use with gasoline or gasoline/ethanol blends with nominal ethanol concentrations up to 85 percent (E85).
  • 20% MTBE, 20% ETBE or 17% TAME with gasoline.
  • UL79B  for diesel fuel, biodiesel fuel, diesel/biodiesel blends with nominal biodiesel concentrations up to 20 percent (B20), kerosene, and fuel oil for products intended for use with diesel fuel, biodiesel fuel, diesel/biodiesel blends with nominal biodiesel concentrations up to 20 percent (B20), kerosene or fuel oil.
  • 100% biodiesel.

Approvals

  • cULus listed.
  • Consult factory for applicable approvals.

4 Hp Variable Speed Pump Performance Chart - 60 Hz

For 50 Hz performance charts, please see the 50Hz-Submersible Turbine Pumps-Datasheet in Downloads.

4 Inch Performance Chart - 4 Hp Variable Speed Pump Performance Chart.psd
STP Ordering Guide.psd

4 Hp Submersible Pump Ordering Guide

A typical turbine model designation has up to five components to define the pump being supplied as follows:

XXX YYYYY Z - A - B

XXX = Basic Model Designation

STP = These standard variable speed and variable length models are capable of up to 10% ethanol with gasoline

IST = These variable speed and variable length models include alcohol-gasoline compatibility (up to 85% ethanol, up to 20% Biodiesel, or 100% Biodiesel).

ISTAP = These variable speed and variable length models include alcohol-gasoline compatibility (up to 85% ethanol, up to 20% Biodiesel, or 100% Biodiesel) and Advanced Protection with powder-coated, e-coated, and stainless steel components.

YYYYY = Factory Installed Options

Model designations may include one or more of the following characters in alphabetical order:

F = Floating suction adapter (1½" NPT female adapter)

K = Intake filter screen (IFS, factory installed to PMA)

M = MagShell® (flow enhancing, expanded PMA shell)

R* = Model R check valve (24 psi relief/22 psi reset for PLLD)

W* = Model W check valve (16 psi relief/13 psi reset for PPM4000)

Z = Pump Motor Horsepower Rating

VS4 = 4 Hp variable speed

A = Model Length

VL1 = STP variable length range #1 (64" - 92")

VL2 = STP variable length range #2 (95" - 156")

VL3 = STP variable length range #3 (127" - 218")

B = Riser Pipe Length (see diagram)

Riser pipe length is expressed as two numeric characters that indicate the total length of the riser in inches. Riser pipes are available from 7" to 60" in 1" increments (additional charge for risers 31" or longer).

 

4 Hp Variable Speed Submersible Turbine Pumps

Variable speed, variable length.

Model Description Model Length Range Number Model Length Range*
STPMVS4-VL1    4 Hp variable speed with MagShell® VL1 64" – 92"
STPMVS4-VL2 4 Hp variable speed with MagShell® VL2 95" – 156"
STPMVS4-VL3 4 Hp variable speed with MagShell® VL3 127" – 218"

4 Hp Variable Speed Intelligent Submersible Turbine Pumps

Variable speed, variable length.

Model Description Model Length Range Number Model Length Range*
ISTMVS4-VL1    4 Hp variable speed with MagShell® VL1 64" – 92"
ISTMVS4-VL2 4 Hp variable speed with MagShell® VL2 95" – 156"
ISTMVS4-VL3 4 Hp variable speed with MagShell® VL3 127" – 218"
ISTAPMVS4-VL1 4 Hp AG variable speed with Advanced Protection, and MagShell® VL1 64" – 92"
ISTAPMVS4-VL2 4 Hp AG variable speed with Advanced Protection, and MagShell® VL2 95" – 156"
ISTAPMVS4-VL3 4 Hp AG variable speed with Advanced Protection, and MagShell® VL3 127" – 218"

 

Notes:

  1. Remove “M” from model number for non-MagShell® pump motor assembly.
  2. All STP models are UL and cUL listed for compatibility with fuel mixtures containing up to 10% ethanol with gasoline, up to 5% Biodiesel with diesel fuels, and 20% MTBE, 20% ETBE or 17% TAME with gasoline.
  3. All IST/ISTAP models are compatible with fuel mixtures containing diesel fuel with up to 20% Biodiesel, 100% Biodiesel, up to 85% ethanol with gasoline, and 20% MTBE, 20% ETBE or 17% TAME with gasoline.
  4. All models are supplied with a standard check valve unless factory option “R” or “W” is specified.
  5. All above models can only be powered by a MagVFC™. 4 hp models require three-phase incoming power supply, 2 hp models can be supplied with single- or three-phase incoming power.
  6. 4" riser pipe, if supplied locally, must be 4½" OD by 3/16" WT tubing.
  7. For riser pipe length 31" to 60", additional charge applies (call Customer Service for lead times).

*Model length (A) defined as the dimension from turbine manifold bottom to pump motor inlet

Factory Installed Options

Specified in model number at time of STP order.

Model Description
F Floating suction adapter, 1½" NPT female, must be factory installed
K IFS (intake filter screen) factory assembled to pump motor assembly
R Model R check valve, factory installed, for Veeder-Root® PLLD Line Leak
W Model W check valve, factory installed, for Red Jacket PPM4000 Line Leak

Intelligent submersible turbine pump specific accessories - 60Hz

Model Number Description
5874202800 MagVFC™, 2 Hp or 4 Hp Variable Frequency Controller, 220 V, one required per STP
400137908 Syphon check valve, alcohol-gasoline compatible (when ordered with STP/IST)
5800300100 STP-DHI, dispenser hook isolation for 110 Volt dispenser handle switches, up to eight each
402459931 Model 65 psi check valve (for secondary manifolded STPs with Veeder-Root® PLLD), AG compatible
402507930 Secondary syphon kit (when two syphon primes are required for one STP)

Intelligent submersible turbine pump specific accessories - 50Hz

Model Number Description
5874202900 EcoVFC™, 2 Hp or 4 Hp Variable Frequency Controller, 380 V, one required per STP
400137937 Syphon check valve, alcohol-gasoline compatible
402459931 Model 65 psi check valve (for secondary manifolded STPs with Veeder-Root® PLLD), AG compatible
402507930 Secondary syphon kit (when two syphon primes are required for one STP)
5800300200 STP-DHIB, dispenser hook isolation for 240 Volt dispenser handle switches, up to eight each
STP Replacement Parts Hero.psd

4" STP Accessories & Parts

Visit the Accessories & Spare Parts page for a full listing of available products. 

Accessories & Parts