Franklin Electric Tri-Seal FPS4400 1A Series 304ss 4" Submersible Bore Pumps (Max 25LPM)

The Franklin Electric FPS4400 Tri-Seal 1A Series Submersible Bore Pump is precision-engineered to deliver dependable performance, high efficiency, and long service life in 4" and larger boreholes. Constructed from high-grade 304 stainless steel and featuring Franklin’s patented Tri-Seal™ floating stage system, this pump offers exceptional protection against wear from abrasives such as sand, ensuring consistent flow and pressure in challenging groundwater conditions.

Designed for small domestic and rural water systems, the FPS4400 1A Series achieves up to 25 LPM and is powered by Franklin Electric’s corrosion-resistant 4" submersible motors, renowned worldwide for their reliability. Together, they provide a complete, efficient, and maintenance-free pumping solution for bores, wells, and water transfer systems.

FEATURES

• Tri-Seal™ Floating Stage System for superior sand-handling and abrasion resistance
• 304 SS construction on all wetted components for corrosion resistance
• Celcon® impellers and Noryl® diffusers provide high efficiency and long wear life
• Phenolic washer and stainless hub seal maintain positive axial and radial sealing
• Removable spring-loaded check valve for backflow prevention
• Ceramic shaft sleeve and rubber discharge bearing protect against sand wear
• Compact 4" design fits standard borehole sizes
• Powered by Franklin 4" submersible motor for long-term reliability

SPECIFICATIONS

• Model: FPS-1A-Series (Tri-Seal)
• Maximum Flow: 25 LPM (1.5 m³/h)
• Discharge Head: Up to 120 m (depending on model)
• Motor Power Range: 0.37 – 1.5 kW (½ – 2 HP)
• Stages Available: 8 – 35
• Discharge Port: 1¼″ BSP
• Maximum Water Temperature: 49 °C
• Maximum Diameter: 99 mm (with cable guard)
• Shaft Sleeve: Ceramic
• Check Valve: Integrated, spring-loaded
• Material: 304 SS, Celcon®, Noryl®, Phenolic

APPLICATIONS

• Domestic and rural water supply from 4" bores or larger
• Stock watering and small irrigation systems
• Rainwater harvesting and tank filling
• Pressure boosting and water transfer

INCLUSIONS

• Franklin Electric FPS4400 1A Series 304 SS Submersible Pump End
• Franklin Electric 4" Submersible Motor (optional models)
• Removable check valve assembly
• User manual