Franklin Electric Tri-Seal FPS4400 4A Series 304ss 4" Submersible Bore Pumps (Max 105LPM)

The Franklin Electric FPS4400 Tri-Seal 4A Series 4" Submersible Bore Pump is designed for superior reliability, efficiency, and wear resistance in domestic, rural, and light commercial bore water applications. Built with Franklin’s patented Tri-Seal™ floating stage system, the 4A Series provides exceptional sand-handling capability, consistent flow, and long-term durability — even in abrasive groundwater conditions.

Constructed from 304 stainless steel with precision-moulded thermoplastic hydraulics, the FPS4400 4A Series is engineered for maximum corrosion resistance and hydraulic performance. The floating impeller design minimises thrust load while maintaining high efficiency, and the spring-loaded check valve ensures dependable backflow protection. When paired with a Franklin 4" submersible motor, this system delivers quiet, energy-efficient operation with outstanding longevity.

FEATURES

• Tri-Seal™ Floating Stage System for outstanding sand and abrasion resistance
• 304 stainless steel hub, shell, and discharge head for strength and corrosion resistance
• Acetal impellers for high hydraulic efficiency and durability
• Modified PPO diffusers and discs deliver excellent wear resistance
• Phenolic washer provides long-term down-thrust protection
• Floating impeller stages reduce thrust load and improve service life
• Removable spring-loaded check valve prevents backflow and simplifies maintenance
• Ceramic shaft sleeve and rubber discharge bearing protect against sand wear
• Patented impeller hub seal system provides superior sealing and efficiency
• Designed for continuous-duty operation and compatible with all Franklin 4" motors

SPECIFICATIONS

• Model: FPS-4A Series (Tri-Seal)
• Maximum Flow: 105 LPM (6.3 m³/h)
• Discharge Head: Up to 120 m (depending on model)
• Motor Power Range: 0.75 – 5.5 kW (1 – 7.5 HP)
• Stages: 7 – 44
• 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

• Domestic and rural bore water supply systems
• Irrigation and agricultural applications
• Pressure boosting and tank filling
• Rainwater harvesting and groundwater transfer

INCLUSIONS

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