Franklin Electric Tri-Seal FPS4400 6A Series 304ss 4" Submersible Bore Pumps (Max 150LPM)

The Franklin Electric FPS4400 Tri-Seal 6A Series 4" Submersible Bore Pump is a high-performance solution engineered for large domestic, agricultural, and light commercial groundwater systems. Designed with Franklin’s patented Tri-Seal™ floating stage system, the 6A Series offers superior sand-handling capability, high efficiency, and long-term reliability in abrasive water conditions.

Manufactured from 304 stainless steel with precision-engineered thermoplastic components, the 6A Series provides exceptional corrosion resistance and smooth, quiet operation. The floating impeller system allows each stage to move independently, reducing wear and maintaining consistent performance. Combined with Franklin’s corrosion-resistant 4" submersible motor, the FPS4400 6A Series ensures reliable operation and dependable water delivery for demanding bore water applications.

FEATURES

• Tri-Seal™ Floating Stage System for superior abrasion and sand resistance
• 304 stainless steel hub, shell, and discharge head for corrosion protection
• Acetal impellers for high efficiency and wear resistance
• Modified PPO diffusers and discs enhance flow stability and durability
• Phenolic washer provides reliable down-thrust protection
• Floating impeller design ensures smoother operation and longer pump life
• Spring-loaded check valve prevents backflow and allows easy servicing
• Ceramic shaft sleeve and rubber discharge bearing resist sand wear
• Patented impeller hub seal system minimises recirculation losses
• Designed for continuous-duty operation with Franklin 4" submersible motors

SPECIFICATIONS

• Model: FPS-6A Series (Tri-Seal)
• Maximum Flow: 150 LPM (9 m³/h)
• Discharge Head: Up to 120 m (depending on model)
• Motor Power Range: 1.1 – 3.7 kW (1.5 – 5 HP)
• Stages: 7 – 35
• Discharge Port: 1¼″ BSP
• Maximum Water Temperature: 49 °C (120 °F)
• Maximum Diameter: 99 mm (with cable guard)
• Check Valve: Spring-loaded and removable
• Shaft Sleeve: Ceramic
• Materials: 304 SS / Acetal / Modified PPO / Phenolic

APPLICATIONS

• Large domestic and rural water supply systems
• Agricultural irrigation and stock watering
• Pressure boosting and tank filling
• Rainwater harvesting and groundwater transfer

INCLUSIONS

• Franklin Electric FPS4400 6A Series 304SS Submersible Pump End
• Franklin Electric 4″ Submersible Motor (optional)
• Removable spring-loaded check valve
• User Manual