Flamco - Flexfiller 125D Pressurisation Unit - Single Pump - 0.5-2.5 Bar - 230V

Built for reliable sealed-system top-up, the Flamco Flexfiller 125D is a floor-standing digital pressurisation unit using an electronic pressure transducer and microprocessor control to maintain minimum system pressure with precision.

It delivers up to 18 L/min top-up via an 18 Ltrs internal break tank and suits commercial, industrial and large domestic installations. Available in single or twin-pump configurations for sealed LPHW/CHW systems (guide volume up to 300,000 Ltrs).

• Digital control with electronic pressure transducer
• 18 Ltrs break tank; up to 18 L/min top-up
• MODBUS RTU communications; password-protected access
• Fluid Protection Category 5 (Type AB weir overflow)

Finished in black (RAL 9005) with a sequential programming menu, system fill mode and 12-month on-screen service reminder for straightforward commissioning and operation.

Real-world product applications

• Boosting water pressure to multiple outlets in a building
• Maintaining stable pressure where demand varies
• Supplying water from storage tanks to distribution pipework
• Supporting general water supply and transfer systems
• Assisting with pressure control in utility installations

Key Product Features

• Applications: commercial, industrial and residential sealed systems (guide ≤ 300,000 Ltrs)
• Hydraulics:18 Ltrs internal break tank; 18 L/min top-up; Delivery pressure 0.5-2.5 Bar.
• Control: pressure setting in 0.1 Bar increments; pump pulse option; system fill mode
• Comms & access:MODBUS RTU; password-protected; event logging (alarms, run counters, cumulative hours, electrical interruption)
• Protection: flood protection (pump runtime limiter, excessive start alarm)
• Electrical: electric pump 230V 50Hz 1ph
• Finish: powder-coated cabinet in black (RAL 9005)
• Configuration: single (duty) or twin (duty/standby) pump options

Flamco (est. 1956) is a Dutch manufacturer of HVAC and plumbing system components, including expansion vessels, air separators and pressurisation accessories. Their ranges are used in heating and chilled-water circuits and potable water systems across domestic and commercial installations.