Franklin Electric HC Series Close-Coupled Centrifugal Pump

The Franklin Electric HC Series Close-Coupled Centrifugal Pump is built for high-capacity water transfer, irrigation, commercial water systems and industrial pumping. Ken’s Distributing supplies complete HC pump configurations and helps customers identify replacement impellers, mechanical seals, packing kits, wear rings and other service components.

• Complete pumps: Choose from 7.5 to 50 HP configurations listed below, with specific hydraulic sizes, motor voltages, enclosures and seals.
• Repair and replacement parts: Find manufacturer part numbers by the HC hydraulic family, impeller trim and seal arrangement before requesting a match.
• Application-based sizing: Send required GPM, total dynamic head, operating suction conditions and electrical supply to receive help selecting a configuration.

Need a pump or repair-parts quote? Contact Ken’s Distributing with the model or item number and your application details. We can confirm the relevant configuration, pricing and availability.

Franklin Electric HC Series Close-Coupled Centrifugal Pump Specifications

The published series-level limits in Franklin Electric literature are not simultaneous operating points. Pump selection must be based on the performance curve for the exact hydraulic size, impeller trim, speed and installation conditions.

How to Select the Right HC Centrifugal Pump

HC series selection starts with the required flow (GPM) and total dynamic head (TDH), not horsepower alone. After choosing the hydraulic end, match the motor, supply voltage, seal type and connection sizes. Two pumps with the same HP can deliver different flow and head when the impeller diameter, speed or casing differs.

• Hydraulic size: Match the existing suction and discharge connections and the performance curve, then confirm the flange configuration.
• Motor speed: Review whether your application calls for the 3600 RPM or 1800 RPM family. Manufacturer item pages may list actual operating RPM such as 1750.
• Mechanical seal: Suitable when the specified mechanical-seal construction and service requirements match the liquid and duty.
• Packed seal: Uses packing and a lantern ring, with maintenance needs different from a mechanical-seal assembly.
• ODP versus TEFC: Choose the enclosure appropriate to the installation environment and available three-phase or single-phase service.

For replacement orders: Provide the complete HC/HCL model designation, manufacturer item number and nameplate details so the motor and wet-end configuration can be matched correctly.

HC Series Complete Pumps: Models and Item Numbers

All original complete-pump entries are organized by hydraulic size, seal style and speed below. The underlined item number in the first column opens its individual product page. Model designations are shown for identification; voltage, phase and enclosure vary by item.

HC 2 x 3 – 7.5 FLG MECH. SEAL 3600 RPM

HC 2.5 x 4 – 7.5 FLG MECH. SEAL 3600 RPM

HC 3 x 4 – 7.5 FLG MECH. SEAL 3600 RPM

HC 3 x 4 – 7.5 FLG PACK. SEAL 3600 RPM

HC 4 x 4 – 7.5 FLG MECH. SEAL 3600 RPM

HC 4 x 4 – 7.5 FLG PACK. SEAL 3600 RPM

HC 4 x 5 – 7.5 FLG MECH. SEAL 3600 RPM

HC 4 x 5 – 7.5 FLG PACK. SEAL 3600 RPM

HCL 6 x 4 – 10 FLG MECH. SEAL 1800 RPM

HC 2 x 3 – 10 FLG MECH. SEAL 3600 RPM

HC 2.5 x 4 – 10 FLG MECH. SEAL 3600 RPM

HC 3 x 4 – 10 FLG MECH. SEAL 3600 RPM

HC 3 x 4 – 10 FLG PACK. SEAL 3600 RPM

HC 6 x 4 – 10 FLG MECH. SEAL 3600 RPM

HC 6 x 4 – 10 FLG PACK. SEAL 3600 RPM

HC 6 x 8 – 10 FLG MECH. SEAL 1800 RPM

HC 6 x 8 – 10 FLG PACK. SEAL 1800 RPM

HC 6 x 8 – 10L FLG MECH. SEAL 1800 RPM

HC 6 x 8 – 10L FLG PACK. SEAL 1800 RPM

Franklin Electric HC Series Repair and Replacement Parts

Ken’s Distributing can help source HC centrifugal pump repair parts, including impellers, mechanical seals, packing, shaft sleeves, volutes, wear rings and complete pump-end components. The manufacturer part numbers below are grouped by hydraulic size and impeller trim. They are not interchangeable merely because two pumps have the same horsepower.

To order a replacement part, provide the HC or HCL model, the original complete-pump item number, the required component, and any impeller diameter or trim code stamped on the existing assembly. If an existing part number has been superseded, ask us to confirm the current replacement before ordering.

HC 7.5-Inch Hydraulic Families: Seal, Packing and Service Parts

Franklin Electric’s 7.5-inch close-coupled parts catalog lists the following service components for the covered HC 2 × 3, 2.5 × 4, 3 × 4, 4 × 4 and 4 × 5 hydraulic families. Confirm the exact assembly and motor frame before ordering.

HC 7.5-Inch Impellers by Hydraulic Size and Trim

Use the hydraulic casing size and impeller trim together. The 3 × 4 – 7.5 FAA impeller is specified as ductile iron in the published repair list, while many other listed impellers are CA6NM stainless steel. Confirm material and revision by item number when ordering.

HC 10-Inch Hydraulic Families: Seal and Packing Kits

The 10-inch close-coupled parts catalog identifies different seal kits from the 7.5-inch families. Use the correct parts diagram for the HC 10-inch configuration.

Selected HC 10-Inch Impellers by Hydraulic Size and Trim

The following are selected manufacturer-listed impellers for HC 10-inch hydraulic families represented in the complete-pump ordering tables. This is not a complete interchange list; larger or different-speed HC/HCL variants must be checked against their exact exploded-parts drawing.

For additional parts by exact pump model, review the Franklin Electric replacement-parts selection or send the original item number to Ken’s Distributing. We can check replacement options, part availability and pricing for the required configuration.

HC Pump-End Kits Without a Motor

If the existing JP-frame motor is serviceable but the hydraulic end needs replacement, ask about a complete HC pump-end kit. The manufacturer lists pump-end assemblies separately from the motor. Matching the motor frame and the required impeller trim is essential; a supplied kit may require trimming and balancing to suit the chosen duty.

These are selected pump-end order numbers from the manufacturer’s catalogs, not guaranteed direct-fit replacements for every HC motor. Share your motor frame, shaft details and pump duty to confirm the correct kit and finished impeller trim.

When to Repair an HC Pump or Replace the Complete Unit

A worn mechanical seal, packing, O-ring, shaft sleeve or wear ring may be resolved with a model-matched part. A badly damaged volute, heavily eroded impeller or incompatible motor may justify comparing the cost and downtime of a replacement pump. In either case, match the system’s required flow and head so a replacement does not change operating performance unintentionally.

• For a complete HC pump: Send GPM, TDH, suction conditions, motor voltage/phase, enclosure, installation layout and delivery location.
• For HC replacement parts: Send the exact manufacturer item number, full HC/HCL model, component name or existing part number, seal type, impeller trim and any service photos.

HC Series vs. XS Series: Which Close-Coupled Pump Should You Choose?

Both Franklin Electric series are close-coupled centrifugal pumps. The right choice depends on the pump curve, motor speed, materials, seal arrangement and installation requirements rather than assuming that one series is always a direct substitute for the other.

If your installation calls for a lower-speed close-coupled alternative, compare the Franklin Electric XS Series Close-Coupled Centrifugal Pump. Ken’s Distributing can help review a pump selection using the actual operating duty point.

Typical HC Series Pump Applications

• Commercial and municipal water transfer: High-capacity surface pump installations where the selected performance curve meets the system duty.
• Irrigation pumping: Agricultural water supply and distribution with suitable suction, piping and electrical service.
• Industrial process water: Compatible clean-water and water-transfer duties requiring accessible centrifugal pump service.
• Construction and mining support: Water handling and utility pumping within the chosen pump’s operating and material limits.

HC Mechanical Seals vs. Packing

A mechanical seal uses face-contact sealing components and has specific material and replacement requirements. Packed configurations use rings of packing and a lantern ring that are serviced differently. Both can be suitable for specified industrial pump duties. Order replacements by the original seal configuration, not solely by horsepower or nominal impeller size.

HC Series Installation and Service Checklist

• Check the selected pump curve and available NPSH against actual suction conditions to reduce cavitation risk.
• Confirm suction and discharge flange sizes, motor direction, base support, clearance and installation orientation.
• Match three-phase voltage, motor enclosure, RPM and starting/control equipment to the exact nameplate.
• Maintain service access to the back pull-out element, volute hardware, seal or stuffing box and shaft sleeve.
• Keep the full item number and the original repair-part identifiers with the maintenance records for the next service interval.

Frequently Asked Questions About Franklin Electric HC Pumps and Parts

What horsepower range is available in the HC Series?

The complete-pump items on this page span 7.5 to 50 HP. The available size, speed, seal and electrical combination varies by model number.

Are HC and HCL pumps all 3600 RPM?

No. The listed configurations include nominal 3600 RPM and 1800 RPM families. Use the precise item rating and performance curve when selecting the pump or motor.

What replacement parts can I request for an HC centrifugal pump?

Typical HC service needs include mechanical seal kits, packing kits, impellers, wear rings, shaft sleeves, O-rings and wet-end components. The manufacturer part numbers above are grouped by hydraulic size and seal configuration.

Do HC 7.5-inch and 10-inch pumps use the same repair kit?

No. For the covered catalog versions, the 7.5-inch mechanical and packing repair kits are 305415926 and 305415927. The 10-inch mechanical and packing kits are 305464107 and 305464108. Confirm your assembly before ordering.

How do I find the correct HC impeller?

Match the casing size, full model number, impeller trim code or diameter, motor speed and original part number. Two pumps of the same HP may use different impellers.

Is every HC impeller stainless steel?

Franklin Electric identifies CA6NM stainless steel as the primary impeller material in its HC series description, while some specific catalog trims and item-level descriptions differ. Confirm the exact impeller part number and material for the unit being serviced.

What information is required for a pump or replacement-parts quote?

For pumps, include flow, head, supply voltage and phase, seal style and complete-pump item number. For parts, provide the complete HC/HCL model, existing part number or component name, seal configuration and impeller trim.

Can Ken’s Distributing provide HC pumps and repair parts?

Ken’s Distributing supplies industrial pumps and repair/replacement parts by quotation. Send us the model and required components so we can confirm suitability, current price and availability.

Request HC Pump or Replacement-Parts Pricing

Whether you need a complete Franklin Electric HC Series pump or replacement components to restore an existing unit, Ken’s Distributing can review your item number and application information. We supply customers across the United States and Canada. Request your quote with the necessary specifications for a more accurate match.