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).

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

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

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

• ⅓ and ¾ Hp fixed speed models are available in variable length and fixed length options.
• 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.

60 Hz Pump Motor

• ⅓ and ¾ Hp fixed speed, 3450 rpm, two-stage centrifugal type pump motor with integral, automatic thermal overload protection.
• ⅓ Hp models have a max. pressure of 27 psi.
• ¾ Hp models have a max. pressure of 30 psi.

50 Hz Pump Motor

• ¾ Hp fixed speed, 2875 rpm, two-stage centrifugal type pump motor with integral, automatic thermal overload protection.
• ¾ Hp models have a max. pressure of 2.55 bar.

60 Hz Power Requirements

• ⅓ and ¾ Hp fixed speed models require single-phase, 208-230 VAC, 60 Hz incoming power.
• ⅓ and ¾ Hp fixed speed models incorporate a starting and running capacitor, with internal bleed resistor, rated 370 Volt, 15 microfarad.
• SPGC-220 single-phase Guardian Controllers and STP-CBS single-phase control boxes are available for ⅓ and ¾ hp pump control.
• ⅓ hp max. motor draw: 4 Amps.
• ¾ hp max. motor draw: 7 Amps.

50 Hz Power Requirements

• 75B fixed speed models require single-phase, 200-250 VAC, 50 Hz incoming power. 75C fixed speed models require three-phase, 380-415 VAC, 50 Hz incoming power
• 75B fixed speed models incorporate a starting and running capacitor, with internal bleed resistor, rated 440 Volt,  15 microfarad.
• SPGC-220 single-phase Guardian™ Series Controllers and STP-CBBS single-phase control boxes are available for 75B pump control.
• STP-SCIIIC three-phase smart controller and STP-CBB3C three-phase magnetic starter are available for 75C control
• ¾ Hp max. motor draw: 75B 6 Amps, 75C 3 Amps.

Liquid Compatibility

• Max. liquid viscosity: 70 SSU at 60 °F (15 °C).
• Standard STP models are UL and cUL listed for fuel mixtures containing up to 10% ethanol with gasoline, and 20% MTBE, 20% ETBE or 17% TAME with gasoline.
• STPAG/STPAP (AG compatible) models are UL 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.
• ⅓ and ¾ hp fixed 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.

Standard ⅓ and ¾ Hp Fixed Speed Submersible Turbine Pumps

Alcohol-Gas (AG) ⅓ and ¾ Hp Fixed Speed Submersible Turbine Pumps

Notes:

1. STP models are compatible 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. STPAG/STPAP 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.
2. All models are supplied with a standard check valve unless factory option “R” or “W” is specified.
3. All above models require single-phase, 208-230 VAC, 60 Hz incoming power.
4. 4" riser pipe, if supplied locally, must be 4½" OD by 3/16" WT tubing.
5. For riser pipe lengths 31" to 60", additional charges apply. (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.

4" STP Accessories & Parts

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