Franklin Electric FBSE Series Self-Priming Pumps, 1/2–3 HP
The Franklin Electric FBSE Series is a close-coupled, self-priming centrifugal pump family for irrigation, water transfer, and other compatible residential, commercial, and light-industrial duties. Models span 1/2 to 3 HP, with published series performance of up to 126 GPM and 70 feet of head. The cast iron casing, semi-open cast iron impeller, and threaded connections make the series useful where a compact, serviceable water-transfer pump is required.
Choose by the actual flow and head at your operating point, motor voltage and phase, connection sizes, and liquid compatibility. Use the model and order-number tables below to request a quote for a complete pump, a pump-end kit, or replacement components from Ken’s Distributing.
Franklin Electric FBSE Features and Benefits
- Self-priming casing: Designed to re-establish prime when the pump housing contains the required priming liquid and the suction system is correctly installed.
- Cast iron volute: Includes service openings for priming, venting, and draining.
- Semi-open cast iron impeller: Suited to manufacturer-listed applications involving water and compatible fertilizer solutions or water containing some debris. Confirm chemical, solids, and abrasion compatibility before use.
- Blind-hole impeller construction: Helps limit contact between pumped liquid and the motor shaft.
- Model-specific mechanical seals: Franklin’s current FBSE catalog identifies SiC/SiC seal faces with FKM elastomers and stainless steel components. Confirm the correct service seal by pump model and revision when ordering parts.
- Close-coupled design: Direct pump-to-motor assembly without a separate field-aligned coupling.
- ODP motors: Open drip-proof motor enclosures are provided with the listed complete pumps. Locate them in an appropriately sheltered, ventilated area.
- Complete pumps and pump-end kits: Seven listed motorized configurations and six listed pump-end kits cover 1/2 to 3 HP.
FBSE Series Technical Specifications
| Specification | FBSE Series Information |
|---|---|
| Manufacturer / product family | Franklin Electric FBSE close-coupled self-priming centrifugal pumps |
| Motor horsepower | 1/2, 3/4, 1, 1.5, 2, or 3 HP |
| Speed | 3600 RPM nominal series designation |
| Maximum published series flow | Up to 126 GPM, model and operating point dependent |
| Maximum published series head | Up to 70 ft, model and operating point dependent |
| Maximum working pressure | 75 PSI |
| Maximum liquid temperature | 212°F, subject to component and installation suitability |
| Pump volute | Cast iron |
| Impeller | Semi-open cast iron |
| Mechanical seal | Current catalog: SiC/SiC x FKM with stainless steel components; verify replacement part against model revision |
| Complete-pump motor enclosure | ODP (open drip-proof) |
| Electrical options | Single-phase on 1/2–3 HP models; 3 HP three-phase model also listed |
| Piping connections | Threaded NPT, sized by model |
| Rotation | Clockwise when viewed from motor end |
Performance note: Published maximum flow and maximum head describe the series envelope, not a simultaneous operating point. Consult the model-specific pump curve to select a pump for the required flow and total dynamic head.
FBSE Complete Pump Models and Ordering Information
The following ordering details consolidate the complete-pump model rows from both product pages. Item numbers link to their corresponding Kendisco product listings. Current Franklin ordering data confirms the three-phase FBSE-300-T as 230/460V; compare any existing motor nameplate before replacing equipment.
| Model | Item / order number | HP | Phase | Volts (VAC) | Motor frame | Motor enclosure | Discharge x suction (NPT, in.) | Max solids (in.) | Max amps (A) | Weight (lb) |
|---|---|---|---|---|---|---|---|---|---|---|
| FBSE-50-S | 92931005 | 1/2 | 1 | 115/230 | 48Y square flange | ODP | 1-1/4 x 1-1/4 | 0.25 | 12.4 / 6.2 | 41 |
| FBSE-75-S | 92931007 | 3/4 | 1 | 115/230 | 48Y square flange | ODP | 1-1/4 x 1-1/4 | 0.35 | 14.8 / 7.4 | 42 |
| FBSE-100-S | 92931010 | 1 | 1 | 115/230 | 48Y square flange | ODP | 1-1/4 x 1-1/4 | 0.50 | 19.9 / 9.5 | 46 |
| FBSE-150-S | 92931015 | 1.5 | 1 | 115/230 | 48Y square flange | ODP | 2 x 2 | 0.30 | 24.0 / 12.0 | 52 |
| FBSE-200-S | 92931020 | 2 | 1 | 230 | 48Y square flange | ODP | 2 x 2 | 0.47 | 11.2 | 60 |
| FBSE-300-S | 92931030 | 3 | 1 | 230 | 56J C-face | ODP | 2 x 2 | 0.75 | 13.5 | 70 |
| FBSE-300-T | 92933030 | 3 | 3 | 230/460 | 56J C-face | ODP | 2 x 2 | 0.75 | 9 / 4.5 | 60 |
Connection, solids and ampere values: These are from the existing Kendisco engineering table. Confirm final selection and wiring against the specific model’s current documentation and motor nameplate. Motor ratings and dimensions may vary with replacement or revised configurations.
FBSE Pump-End Kits (Without Motor)
The FBSE pump-end kits include a pump assembly intended for a suitable 56J C-face threaded-shaft motor. Check horsepower and motor service factor against the full pump performance curve. A pump-end kit is not a complete motorized pump.
| Pump-end kit model | Item / order number | HP | Motor compatibility | Max solids (in.) | Kit weight (lb) |
|---|---|---|---|---|---|
| FBSE-50K | 92925005 | 1/2 | 56J C-face, verify driver service factor | 0.25 | 18 |
| FBSE-75K | 92925007 | 3/4 | 56J C-face, verify driver service factor | 0.35 | 18 |
| FBSE-100K | 92925010 | 1 | 56J C-face, verify driver service factor | 0.50 | 18 |
| FBSE-150K | 92925015 | 1.5 | 56J C-face, verify driver service factor | 0.30 | 18 |
| FBSE-200K | 92925020 | 2 | 56J C-face, verify driver service factor | 0.47 | 22 |
| FBSE-300K | 92925030 | 3 | 56J C-face, verify driver service factor | 0.75 | 25 |
Kit fitting verification: Port sizes are not included in this summary because the existing Kendisco kit table and individual manufacturer item listings differ for at least one model. Confirm discharge and suction dimensions from the exact kit’s current drawing before ordering.
FBSE Pump Construction and Repair Parts
Parts are listed by figure number and pump model. Do not assume a part listed for one horsepower, pump-end kit, or manufacturing revision fits another. Some tables explicitly distinguish equipment manufactured before May 2019. When requesting a replacement, provide the complete model number, item number if available, and pump age or serial information.
Exploded View and Repair Parts, 1/2 to 2 HP Complete Pumps
| Fig. No. | Part Description | Part No. | Materials of Construction | ||||
|---|---|---|---|---|---|---|---|
| FBSE-50 | FBSE-75 | FBSE-100 | FBSE-150 | FBSE-200 | |||
| 1 | FBSE Pump Case | 305461001 | 305461002 | Cast iron, ASTM-A48 CL30 | |||
| 2 | FBSE Impeller | 305461003 | 305461004 | 305461005 | 305461006 | 305461007 | Cast iron, ASTM-A48 CL30 |
| 3 | FBSE Seal Plate | 305461008 | 305461009 | Cast iron, ASTM-A48 CL30 | |||
| 70 | FBSE Motor Base | 305461010 | CRS | ||||
| 90 | FBSE Mechanical Shaft Seal | 305463029 | GL-SiC/GL-SiC x FKM-SS | ||||
| 100A | FBSE O-Ring | 305463292 | 305463294 | Nitrile | |||
| 100B | FBSE Base Protector | 305463134 | Vinyl | ||||
| 200 | FBSE Motor 48Y Sq. Flg., 1 PH | 305374903 | 305446956 | 305446957 | 305374909 | 305446959 | Misc. |
| 500 | FBSE Pipe Plug 3/4″ NPT (2-pack) | 305463050 | CAD-plated steel | ||||
| 530A | FBSE Hex Bolt/Stud – Volute (4-pack) | 305463179 | 305463136 | Zinc-plated steel | |||
| 530B | FBSE Bracket Lockwasher | 305463137 | Zinc-plated steel | ||||
| 530C | FBSE Hex Nut | – | 305463033 | Zinc-plated steel | |||
Earlier Configurations: Pre-May 2019, 1/2 to 2 HP
| 100A | FBSE Case Gasket | 305463133 | 305463124 | EPDM |
Exploded View and Repair Parts, 3 HP Complete Pumps
| Fig. No. | Part Description | Part No. | Materials of Construction |
|---|---|---|---|
| FBSE-300 | |||
| 1 | FBSE Pump Case includes Studs, Lock Washers, and Nuts | 305460033 | Cast iron, ASTM-A48 CL30 |
| 2 | FBSE Impeller | 305453054 | Cast iron, ASTM-A48 CL30 |
| 3 | FBSE Adaptor | 305715008 | Cast iron, ASTM-A48 CL30 |
| 90 | FBSE Mechanical Shaft Seal | 305463029 | GL-SiC/GL-SiCxVITON-SS |
| 100A | FBSE O-ring | 305463294 | Nitrile |
| 200 | FBSE Motor 3 hp, 230 V, 1 PH, 56J | ASB818 | Misc. |
| 200 | FBSE Motor 3 hp, 230/460 V, 3 PH, 56J | 218781 | Misc. |
| 500 | FBSE Pipe Plug 3/4″ NPT (3-Pack) | 305463050 | Zinc-plated steel |
| 503 | FBSE Water Slinger | 305463005 | Neoprene |
| 530A | FBSE Hex Nut, Pump Case (4-Pack) | 305453236 | 300-series stainless steel |
| 530B | FBSE Lock Washer, Pump Case (4-Pack) | 305463137 | Zinc-plated steel |
| 530C | FBSE Hex Bolt – Bracket (4-pack) | 305463030 | Zinc-plated steel |
| 531 | FBSE Studs | 305463129 | Zinc-plated steel |
Earlier Configurations: Pre-May 2019, 3 HP
| 1 | FBSE Pump Case | 305460001 | Cast iron, ASTM-A48 CL30 |
| 100A | FBSE Case Gasket | 305463124 | Vegetable fiber |
Exploded View and Repair Parts, 1/2 to 3 HP Pump-End Kits
| Fig. No. | Part Description | Part No. | Materials of Construction | |||||
|---|---|---|---|---|---|---|---|---|
| FBSE-50K | FBSE-75K | FBSE-100K | FBSE-150K | FBSE-200K | FBSE-300K | |||
| 1 | FBSE Pump Case | 305715001 | 305460033 | Cast Iron, ASTM-A48 CL30 | ||||
| 2 | FBSE Impeller | 305461024 | 305453002 | 305453053 | 305715003 | 305715004 | 305453054 | Cast Iron, ASTM-A48 CL30 |
| 3 | FBSE Adapter | 305715007 | 305715008 | Cast Iron, ASTM-A48 CL30 | ||||
| 90 | FBSE Mechanical Shaft Seal | 305463029 | GL-SiC/GL-SiCxVITON-SS | |||||
| 100A | FBSE O-Ring | 305463292 | 305463294 | Nitrile | ||||
| 500 | FBSE Pipe Plug 3/4″ NPT (3-Pack) | 305463050 | Zinc-plated steel | |||||
| 503 | FBSE Water Slinger | 305463005 | Neoprene | |||||
| 530A | FBSE Hex Nut – Volute (4-Pack) | 305463236 | Zinc-plated steel | |||||
| 530B | FBSE Volute Lock Washer (4-Pack) | 305463137 | Zinc-plated steel | |||||
| 530C | FBSE Hex Bolt – Bracket (4-Pack) | 305463030 | Zinc-plated steel | |||||
| 531 | FBSE Studs | 305463129 | Zinc-plated steel | |||||
Earlier Configurations: Pre-May 2019 Pump-End Kits
| 1 | FBSE Pump Case | 305715001 | 305460001 | Cast Iron, ASTM-A48 CL30 |
| 100A | FBSE Gasket, Case | 305463133 | 305463124 | Vegetable fiber |
Repair-parts verification: These detailed part-number matrices are retained from the original Kendisco product page so existing ordering references are not lost. The current Franklin Electric catalog should be consulted before fulfilling replacement-part orders, especially for motor numbers, earlier assemblies, and seal revisions. Manufacturer revisions can change part compatibility.
FBSE Dimensions
The drawing and dimensional table below retain the original model-by-model measurements. Dimensions are in inches and are intended for estimating installation space. Check the current dimensional drawing before fabrication or final installation.
| Model | Fig. | Dis. x Suc. (NPT) | Dimensions (in) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CP | A | BA | C | D | E | F | K | X | Y | Z | ZO | |||
| FBSE-50-S | 1 | 1¼ x 1¼ | 15.46 | 4.00 | 1.69 | 9.86 | 3.98 | 2.20 | 3.00 | 7.61 | 5.23 | 3.25 | 2.00 | 7.50 |
| FBSE-75-S | 1 | 1¼ x 1¼ | 15.96 | 4.00 | 1.69 | 9.86 | 3.98 | 2.20 | 3.00 | 7.61 | 5.23 | 3.25 | 2.00 | 7.50 |
| FBSE-100-S | 1 | 1¼ x 1¼ | 16.96 | 4.00 | 1.69 | 9.86 | 3.98 | 2.20 | 3.00 | 7.61 | 5.23 | 3.25 | 2.00 | 7.50 |
| FBSE-150-S | 1 | 2 x 2 | 17.91 | 4.26 | 1.69 | 11.00 | 3.98 | 2.20 | 3.00 | 8.36 | 5.44 | 3.17 | 2.13 | 8.50 |
| FBSE-200-S | 1 | 2 x 2 | 19.16 | 4.26 | 1.69 | 11.00 | 3.98 | 2.20 | 3.00 | 8.36 | 5.44 | 3.17 | 2.13 | 8.50 |
| FBSE-300-S | 2 | 2 x 2 | 19.23 | 4.26 | .85 | 11.44 | 4.38 | 2.13 | N/A | 8.37 | 6.69 | 3.17 | 2.13 | 8.50 |
| FBSE-300-T | 2 | 2 x 2 | 20.43 | 4.26 | .85 | 11.44 | 4.38 | 2.13 | N/A | 8.37 | 6.69 | 3.17 | 2.13 | 8.50 |
FBSE Performance Curve
Use the manufacturer performance curve to match each FBSE model to the required flow at the available total dynamic head. Consider friction loss, suction conditions, piping diameter, and system elevation. Model-level flow will vary across the curve.
Applications and Product Selection
- Residential and commercial irrigation: Supplying water to sprinkler or other irrigation systems within the selected model’s performance range.
- Agricultural and nursery water transfer: Moving water or compatible solutions between source and application points.
- Construction and site dewatering: Transferring water where suction-lift capability is useful, subject to solids and inlet conditions.
- Light-industrial and municipal support: General water-transfer duty where the pump’s materials, flow, and head ratings match the application.
Compare actual required GPM and head against the FBSE performance curve, then check motor power, voltage, phase, NPT connection size, and compatibility with the intended liquid. A semi-open impeller does not make the pump suitable for unrestricted solids loading, highly abrasive slurries, or every corrosive liquid.
Self-Priming and Installation Considerations
Before first start, fill the pump casing with the priming liquid as directed by the manufacturer’s instructions. The self-priming feature helps re-establish prime when the pump retains the required liquid and the suction piping is air-tight. If the casing empties or the suction line leaks, re-priming or installation corrections may be needed. Never run the pump dry.
- Location: Protect the ODP motor against direct rain, flooding, and conditions outside its electrical rating. Provide adequate ventilation.
- Suction piping: Use adequately sized, sealed piping, avoiding unnecessary restrictions and air leaks. Verify suction-lift limitations for your operating point.
- Discharge piping: Select piping and valves suited to operating pressure, model-specific connection size, and required flow.
- Electrical supply: Match voltage, phase, protection, and wiring to the exact motor nameplate, with installation performed to applicable electrical requirements.
- Liquid compatibility: Check temperature, chemical composition, solids, seal material, and pump-body compatibility for the specific job.
FBSE vs. FBSEF Self-Priming Pumps
The FBSE Series covers 1/2 to 3 HP with ODP motors and published flow up to 126 GPM. The Franklin Electric FBSEF Series self-priming pumps cover 1.5 to 7.5 HP, use TEFC motor enclosures, and have a higher published series flow range. Both require sizing to the actual system curve rather than selecting on horsepower alone.
Frequently Asked Questions About Franklin Electric FBSE
Which horsepower ratings are available for the FBSE pump?
The complete-pump lineup includes 1/2, 3/4, 1, 1.5, 2, and 3 HP ratings. The 3 HP size is listed in both single-phase and three-phase versions.
Can I buy an FBSE pump end without a motor?
Yes. Six FBSE pump-end kits cover 1/2 through 3 HP. They are designed for suitable 56J C-face threaded-shaft motors; verify horsepower, shaft configuration, service factor, and model compatibility before purchase.
Does an FBSE pump need water added before starting?
Yes. Fill the pump casing before initial startup as described in the manufacturer’s instructions. The pump can self-prime under suitable conditions after the initial fill, but it must not run dry.
Is the FBSE suitable for outdoor installation?
FBSE complete-pump models are listed with ODP motors. These need an appropriately sheltered and ventilated installation; they are not intended to be exposed directly to rain or flooding.
What information is needed for FBSE replacement parts?
Provide the FBSE model, item or order number, pump age or serial details, and the part number from the relevant exploded-parts table. Confirm compatibility with the current Franklin Electric parts information, particularly for pre-May 2019 equipment.
What is the maximum flow of the FBSE Series?
Franklin Electric publishes series performance up to 126 GPM and 70 feet of head. The flow delivered at your site’s required head depends on the selected pump model and operating conditions.
Related Pumps and Parts
- Franklin Electric FBSEF self-priming pumps, 1.5–7.5 HP, for a higher-capacity close-coupled family.
- Franklin Electric Turf Boss self-priming pumps, 1–2 HP, for selected irrigation applications.
- Franklin Electric Turf Boss self-priming pumps, 3–5 HP, for other irrigation duty points.
- Franklin Electric replacement parts and pump repair components.
Request a Quote for an FBSE Pump, Pump-End Kit, or Parts
Ken’s Distributing can help identify an appropriate FBSE model or replacement item for your requirements. Include the model number or item number, desired flow and head, available power supply, and application details in your inquiry. Request a quote using the form on this page or call 303-699-7845 to discuss availability and product selection.
Send us your model number and we will confirm fit, price, and availability.