Flamco - Pro PU 181 Digital Pressurisation Unit - Single Pump - 1-8 Bar - 230V

Purpose-built for sealed systems, the FLAMCO – Pro PU 181 is a compact, wall-mounted digital pressurisation unit that uses an electronic pressure transducer and microprocessor control to maintain stable system pressure.

Delivering top-up flow rates up to 12 L/min via a 4 Ltrs internal break tank, it suits commercial, industrial and large domestic applications. The Pro PUm range supports single or twin-pump configurations and is tuned for quick installation and commissioning.

• 0.1 Bar pressure-set increments; max 8 Bar
• MODBUS RTU communications; password-protected access
• Dry-run protection and flood-protection routines
• Service reminder after 12 months

Finished in grey (RAL 7016) and powered from 230V 50Hz 1ph, the unit features bi-directional menus, system fill mode and detailed event logging for hassle-free 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 volume up to 50,000 Ltrs)
• Hydraulics:4 Ltrs internal break tank; up to 12 L/min top-up
• Control: pressure setting in 0.1 Bar steps; 3 Bar maximum pressure; bi-directional programming menu; system fill mode
• Protection: dry-run protection; flood protection (pump runtime limiter, excessive start alarm); anti-seize routine (2-second pulse if inactive for 60 days, enable at commissioning)
• Comms:MODBUS RTU; password-protected access
• Power: electric pump 230V 50Hz 1ph
• Service: on-screen service reminder (12 months)
• Event logging: alarm activations; pump run counter (per pump); cumulative run timer (hours/pump); electrical interruption
• Volt-free contacts (standard): Common Alarm (N/C), High Pressure (N/O), Low Pressure (N/O), Sensor Health (N/O), Pump 1 Health (N/O), Pump 2 Health (N/O)
• Optional VFCs (factory-fit expansion board): Low Pressure Warning (N/O), High Pressure Warning (N/O), Low Water in Break Tank (N/O), Low Additive in Holding Tank (N/O), Pump 1 Run for Top-up (N/O), Pump 2 Run for Top-up (N/O)
• Finish: grey powder coat (RAL 7016); compact wall-mount enclosure
• Operating pressure: 8 Bar.

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.