Franklin Electric Surface Water Pumps Centrifugal Frame Mount 7.5
Franklin Electric 7.5 inch frame mount centrifugal pump is a large-capacity, heavy-duty surface pump built for high-flow agricultural irrigation, municipal water supply, construction dewatering, and industrial water transfer operations. Available at Ken’s Distributing Company (Kendisco), this pump is identified by its 7.5 inch impeller and housing diameter and is part of the Franklin Electric inch-size frame mount centrifugal series that steps up in capacity from the 7.5 inch through the 14 inch models.
With capacities up to 1,100 GPM, heads up to 250 feet, and a maximum working pressure of 350 PSI, the Franklin Electric 7.5 inch frame mount centrifugal pump handles high-volume applications that go well beyond what close coupled or smaller frame mount models can deliver. Ken’s Distributing carries this pump and can support your selection of the right port size configuration and replacement components for your specific installation.
What Is the Franklin Electric 7.5 Inch Frame Mount Centrifugal Pump?
The Franklin Electric 7.5 inch frame mount centrifugal pump is a heavy-duty, flanged connection surface pump featuring a ductile iron volute with back pull-out design, an enclosed ductile iron impeller with internal hydraulic balancing, and a heavy-duty iron bearing frame with oversized shaft and max-life bearings. It is available with either a packed-box seal with lantern ring or a mechanical seal using silicon carbide and FKM elastomers, giving you flexibility to match the seal type to your fluid conditions and maintenance preferences.
The back pull-out design means the rotating assembly can be removed for service without disconnecting the suction or discharge flanges, which significantly reduces downtime during maintenance on permanent installations. Replaceable shaft sleeves and bronze wear rings allow critical wear components to be replaced individually rather than requiring full pump replacement after extended service.
Technical Specifications
| Specification | Value |
|---|---|
| Maximum Capacity | 1,100 GPM |
| Maximum Head | 250 Feet |
| Maximum Working Pressure | 350 PSI |
| Maximum Temperature | 212 degrees F |
| Rotation | Clockwise when viewed from motor end |
| Pipe Connections | Class 150 Flanged |
| Impeller Size | 7.5 Inch |
| Impeller Type | Enclosed Ductile Iron with Internal Hydraulic Balancing |
| Volute Material | Ductile Iron |
| Bearing Frame | Heavy-Duty Iron, Oversized Shaft, Max-Life Bearings, External Grease Lubrication |
| Seal Options | Packed-Box with Lantern Ring or Mechanical Seal (SiC/SiC, FKM Elastomers) |
| Shaft Sleeve | Replaceable |
| Wear Rings | Replaceable Bronze |
| Mounting Position | Vertical or Horizontal |
Available Port Size Configurations
| Discharge Size | Suction Size |
|---|---|
| 1-1/2 inch | 3 inch |
| 2 inch | 3 inch |
| 2-1/2 inch | 4 inch |
| 3 inch | 4 inch |
| 4 inch | 4 inch |
| 4 inch | 5 inch |
Pump Features
- Ductile iron volute for heavy-duty service with back pull-out design and rotatable housing for ease of installation and discharge alignment
- Enclosed ductile iron impeller configured for superior NPSH characteristics and high efficiency at large flow volumes
- Internal hydraulic balancing on the impeller reduces bearing load and extends bearing service life
- Packed-box seal with lantern ring or silicon carbide mechanical seal with FKM elastomers depending on seal preference and fluid conditions
- Heavy-duty iron bearing frame with oversized shaft and max-life bearings rated for sustained high-load operation
- External grease lubrication for field-accessible bearing maintenance without disassembly
- Replaceable shaft sleeve protects the main shaft from wear and simplifies maintenance at a lower part cost
- Replaceable bronze wear rings allow efficiency to be restored without replacing the entire pump casing
- Casing jack-out holes for ease of service and disassembly in permanent installations
- Two-piece stainless steel packing gland for packed-box seal configurations
- Class 150 flanged pipe connections for secure, high-pressure plumbing integration
- Vertical or horizontal mounting to fit varied pump station layouts
Applications and Industries
The Franklin Electric 7.5 inch frame mount centrifugal pump is built for high-volume operations where smaller pumps cannot deliver the required flow. Its 1,100 GPM capacity, 250-foot head rating, and 350 PSI maximum working pressure make it a practical choice for large-scale agricultural irrigation, municipal infrastructure, and demanding industrial applications.
- Large-scale agricultural and flood irrigation systems
- Commercial water supply and distribution
- Construction site dewatering on large projects
- Municipal water supply and treatment plant operations
- Mining water management and process water transfer
- Light industrial high-volume water transfer
Comparing the Franklin Electric Inch-Size Frame Mount Series
The 7.5 inch model is the entry point of the Franklin Electric large-frame centrifugal pump series available at Ken’s Distributing. As impeller diameter increases through the 9 inch, 10 inch, 13 inch, and 14 inch models, flow capacity and head ratings increase accordingly. If the 7.5 inch does not meet your flow requirements, Ken’s Distributing carries the larger inch-size models as well. Contact Kendisco to compare performance curves and select the right impeller size for your system design.
Ordering Information
Frequently Asked Questions
What is the Franklin Electric 7.5 inch frame mount centrifugal pump used for?
The Franklin Electric 7.5 inch frame mount centrifugal pump is used for large-scale irrigation, municipal water supply, construction dewatering, commercial water transfer, mining operations, and light industrial high-volume pumping. With capacities up to 1,100 GPM and heads up to 250 feet, it handles applications that exceed the output range of smaller close coupled or standard frame mount models.
What does the 7.5 inch measurement refer to on this pump?
The 7.5 inch designation refers to the impeller and housing diameter of this pump model. Franklin Electric uses impeller diameter as the primary size identifier across its large-frame centrifugal pump series, which ranges from the 7.5 inch through the 14 inch models. Larger impeller diameters generally correspond to higher flow rates and head ratings.
What seal options are available on the 7.5 inch frame mount pump?
The Franklin Electric 7.5 inch frame mount centrifugal pump is available with either a packed-box seal with lantern ring or a mechanical seal using silicon carbide faces and FKM elastomers. The packed-box option is a traditional, field-serviceable seal. The mechanical seal option provides a cleaner, lower-maintenance sealing solution for applications where leakage around a packing gland is not acceptable.
Can this pump be serviced without disconnecting the piping?
Yes. The Franklin Electric 7.5 inch frame mount centrifugal pump uses a back pull-out design with casing jack-out holes that allow the rotating assembly to be removed for service and inspection without disconnecting the suction or discharge flanges. This is a significant advantage in permanent pump station installations where replumbing would cause extended downtime.
What pipe connection standard does the 7.5 inch frame mount pump use?
The Franklin Electric 7.5 inch frame mount centrifugal pump uses Class 150 flanged pipe connections rather than the NPT threaded connections found on smaller Franklin Electric centrifugal models. This is standard for large-diameter, high-pressure pump installations and is compatible with Class 150 flanged pipe fittings and valves.
Where can I order the Franklin Electric 7.5 inch frame mount pump?
You can order the Franklin Electric 7.5 inch frame mount centrifugal pump and associated replacement parts from Ken’s Distributing Company at kendisco.com. If you need help selecting the right port size configuration, comparing performance curves, or identifying replacement components, the team at Kendisco is available to assist.
Ken’s Distributing Company is a trusted Franklin Electric distributor serving agricultural, municipal, construction, and industrial customers. Whether you are specifying a new pump station installation or sourcing replacement parts for an existing large-frame Franklin Electric centrifugal pump, Kendisco has the product knowledge and inventory to support your project.