Fimco High Flow 4.5 GPM Demand Switch Diaphragm Pump for Reliable Water Transfer UK

Fimco High‑Flo 4.5 GPM pump is a demand‑switch, diaphragm pump designed for reliable on‑demand water transfer. It starts only when discharge is requested and stops instantly when closed, delivering efficient, low‑wear operation. The diaphragm design eliminates shaft seals, enabling longer life, while a ball‑bearing drive enhances durability. This unit features excellent self‑priming, Santoprene diaphragms, Viton valves, a permanent‑magnet motor with long‑life brushes, fuse protection, and a built‑in cooling fan. Maximum liquid temperature 130°F.

Product Specification

• Flow rate: 4.5 GPM
• Operation: Demand-switch diaphragm pump (engages only on flow demand)
• Diaphragm: Santoprene
• Valves: Viton
• Max liquid temperature: 130°F
• Drive: Ball‑bearing
• Motor: Permanent‑magnet with long‑life brushes
• Protection: Fuse protected
• Cooling: Built‑in cooling fan
• Self‑priming: Excellent
• Seal design: Diaphragm eliminates shaft seal

why buy?

• On‑demand efficiency: The pump activates only when liquid flow is required, reducing wear and energy use.
• Durable construction: Diaphragm design eliminates shaft seals, while a ball‑bearing drive extends pump life in demanding setups.
• Reliable, long‑life motor: Permanent‑magnet design with long‑life brushes and built‑in cooling fan helps prevent overheating during extended operation.
• Chemical and temperature tolerance: Santoprene diaphragms with Viton valves provide robust resistance for a range of fluids up to 130°F.
• Easy installation and maintenance: Excellent self‑priming simplifies setup, with fuse protection adding an extra layer of safety.
• Versatile applications: Ideal for irrigation, spray rigs, transfer tasks, wash‑down operations, and other on‑demand pumping needs where durability and reliability matter.