Close-Coupled Centrifugal Pumps
- Nine series: self-priming and standard centrifugal in one place
- Pump mounts straight to the motor, so no shaft alignment
- Sizes from 1/2 HP up to 75 HP
- AG family covers 65 to 900 GPM
- Single-phase, three-phase, ODP, and TEFC motor options
- Send us your model number and we will confirm the right fit
Comparing nine series at once is the fast way to end up with the wrong Franklin Electric close coupled pump, so start with one fact about your site: does the water sit below the pump or flow to it? Water below the pump calls for a self-priming model. Water that reaches the inlet on its own, from a tank or a main, calls for a standard centrifugal model.
Every pump here mounts the impeller right on the motor shaft, so it arrives ready to pipe and wire with no coupling to align. Use the guide below to find your job, then follow the link to the family that fits.
Find Your Job, Then Your Pump Family
| Your job | Family | Series to look at |
|---|---|---|
| Lawn sprinklers fed from a pond, canal, or tank | Self-priming | Turf Boss |
| Farm or site transfer from water below the pump | Self-priming | FBSE, FBSEF |
| High flow lift on a dusty or wet site | Self-priming | FBSEF with TEFC motor |
| Hot water circulation or jockey service | Centrifugal | FAC, DR |
| Boosting pressure from a tank or main | Centrifugal | AG, DR, FAC |
| Large irrigation or municipal supply | Centrifugal | AG, HC, XS |
| Water that needs a stainless or bronze impeller | Centrifugal | D Series |
| Belt, engine, PTO, or hydraulic drive | Frame mount instead | See frame mount pumps |
If the last row describes your job, a close-coupled pump is the wrong shape. Browse the Franklin frame mount pumps, which take a separate driver.
Self-Priming Family: FBSE, FBSEF, and Turf Boss
These pumps lift water from ponds, canals, and tanks that sit below the pump. Once you fill the casing the first time, they restart on their own.
- Who it is for: homeowners with lawn systems, farms, contractors, and light commercial sites.
- Standout spec: the Turf Boss lifts water from 25 feet, and the FBSEF moves up to 295 GPM.
- Size range: 1/2 to 7.5 HP on single or three-phase power.
Compare lift, flow, and motor type on the close-coupled self-priming page.
Centrifugal Family: DR, D, FAC, AG, HC, and XS
These pumps need water at the inlet before they start. In return, they cover far more ground, from a 1/2 HP circulator to high-flow irrigation and municipal service.
- Who it is for: commercial buildings, irrigation systems, municipal water service, and light industrial plants.
- Standout spec: the AG family spans 65 to 900 GPM, and the FAC handles water up to 212 degrees F.
- Size range: 1/2 HP up to large HC and AG units, many with back pullout service.
See series details, materials, and speeds on the close-coupled centrifugal page.
Still torn between the two? This short guide explains the centrifugal vs self-priming difference in plain terms.
What to Send Us for a Quote
- Where the water sits: below the pump, level with it, or flowing in under pressure.
- The job: sprinklers, transfer, boosting, circulation, or supply.
- Flow and pressure: gallons per minute and the pressure you need at the far end.
- Power: single or three phase, and the voltage at the site.
- Your current pump: the model number, if you are replacing one.
With those five answers, we can point you to one series and confirm the model before it ships.
Frequently Asked Questions
What is a close coupled pump?
A close coupled pump is a pump whose impeller mounts directly on the motor shaft, with the pump casing bolted to the motor face. There is no separate coupling, bearing frame, or base plate. This makes the pump compact, quick to install, and free of shaft alignment work. Franklin Electric builds close coupled pumps in two families: self-priming models like the FBSE and Turf Boss, and standard centrifugal models like the AG and HC.
What is the difference between a close coupled and a long coupled pump?
The difference between a close coupled and a long coupled pump is how the pump connects to the motor. A close coupled pump shares one shaft with the motor, so it is shorter and needs no alignment. A long coupled pump, often called frame mounted, has its own shaft and bearings joined to the motor by a flexible coupling. Long coupled pumps take more setup but let you change motors or drive with a belt, engine, or PTO.
What is the purpose of a pump coupling?
The purpose of a pump coupling is to connect the motor shaft to the pump shaft and pass turning power between them. A flexible coupling also absorbs small misalignment and vibration. Frame mounted pumps need a coupling, and it must be aligned and checked over time. A close-coupled pump skips the coupling completely because the impeller sits on the motor shaft. That removes one wear part and one source of vibration from the system.
Ready to order? Send us the model number, or your flow, head, and power supply, and we will confirm the right Franklin Electric close-coupled pump before it ships.