BT4 Series Horizontal Multi-Stage Booster Pump

Franklin Electric BT4 Series Horizontal Multi Stage Booster Pump

Franklin Electric BT4 Series Horizontal Multi-Stage Booster Pump delivers dependable high-pressure performance in low to medium capacity applications, functioning as a versatile booster for water pressure from city mains or private systems. Ideal for jobs needing more pressure than flow, Franklin Electric BT4 Series offers size ranges from 5 gpm to 45 gpm, making it suitable for residential, commercial, and specialized installations requiring consistent water pressure.

BT4 Series Booster Pump Features (5–25 GPM Models)

• Stainless steel discharge on all models with 1″ NPT outlet for durable water system integration
• Stainless steel bracket with rugged support foot for horizontal or vertical mounting
• Portable design with handle and 1″ NPT inlet for easy setup
• Tri-Seal floating stage system (U.S. patent 7,290,984) ensures maximum performance and longevity
• Acetal impellers, Modified PPO diffusers, and 300-series stainless steel components including hub, shaft, and shell
• Carbon/ceramic mechanical seal with FKM elastomers and stainless steel materials
• ODP square-flange 2-compartment motors are service-friendly without pump disassembly
• High service factor motors (1/2–3 hp), dual voltage, 3-phase inverter duty rated
• Handles up to 75 PSI inlet pressure and 400 PSI discharge pressure
• Fluid handling temperature: up to 120 °F (49 °C)
• NSF/ANSI/CAN 372 Certified for drinking water safety

BT4 Series 56C Pump Ends

• Standard 56C motor bracket compatible with customer-supplied motors
• All stainless steel build for corrosion resistance and durability
• Same Tri-Seal floating stage system ensures efficiency and reliability
• Uses phenolic/ceramic mechanical seal with FKM elastomers and stainless steel elements
• Delivers shut-off pressures up to 270 PSI, flow rates between 5–25 GPM

BT4 Series Booster Pump Features (35–45 GPM Models)

• Optimized for boosting pressure from municipal or private water sources
• Enhanced hydraulics for 35 and 45 GPM ratings provide greater efficiency
• Robust stainless steel bracket, shell, and discharge for high corrosion resistance
• 1.5″ NPT inlet and outlet reduce friction loss across the system
• Bracket rotation in 90° increments for flexible plumbing configurations
• Multiple pressure tapping and drain ports for bypass and accessory plumbing
• Back pull-out motor design allows servicing without disturbing pump or plumbing
• Equipped with NEMA 56C keyed shaft motors in ODP and TEFC enclosures (1 & 3-phase)
• Carbon-ceramic-FKM mechanical seal handles various fluids effectively
• Maximum inlet pressure: 75 PSI, discharge pressure: 400 PSI
• Max fluid temperature: 120 °F (49 °C)