Free Delivery

Free Standard Delivery

On Most Products Over £100 ex VAT

Secure Payments

Secure Payments Online

We Accept All Major Credit Cards & PayPal

Our Experience

Our Experience

We Are Experts in Product Selection

Service Maintenance

Service and Maintenance

Network of Engineers throughout the UK

Flamco Flexfiller 225D Pressurisation Unit - Twin Pump

Product Code: 17397
Flamco Flexfiller 225D Pressurisation Unit - Twin Pump

Regular Price: £1,881.78

Special Price £1,329.00 ex. VAT £1,594.80 inc. VAT


Want to speak to us?

Open 8.30am - 5pm Mon to Fri

Order by phone and get advice.

Freephone 0333 323 2329


Flamco Flexfiller 225D Pressurisation Unit - Twin Pump

Flamco Flexfiller 225D Pressurisation Unit - Twin Pump Floor Standing

Compact, fully-integrated floor standing pressurisation unit topping-up and filling unit, utilising micro-processor control and with electronic pressure transducer

For use on sealed heating and cooling systems, offering accurate control and reliability.

  • Max. Operating pressure: 2.7 / 8 bar (g).
  • Twin pump


The Flexfiller pressurisation unit should be connected to the system at the same point as the expansion vessel to provide a neutral pressure reading.   


  • System quick-fill mode
  • Password protection for parameter entry
  • Pressure settings in 0.1 bar increments
  • Service reminder option (12 months).
  • Pump pulse option (2 second pulse if inactive for 60 days)
  • Flood protection options
  • Event logging for pump start, individual pump run hours counter, electrical interruption and common alarm.
  • Volt free contacts for common fault, high pressure, low pressure, pump fault, pressure transducer fault.

Digital pressurisation equipment including

  • Digital equipment comes with bright LED display scrolling messages including pump operation and alarm modes.
  • Complete with integral water break tank utilising an AB airgap and a WRAS approved float valve.
  • Internal alarm with mute function.
  • Security password protected.
  • Auto resetting low water detection, for pump protection.
  • Auto resetting high and low pressure alarm.
  • Digital pressure setpoint with adjustable differential.
  • Flood protection through a pump run limit timer.
  • Normally closed, common fault, volt free contact (Boiler interlock).
  • Normally open, individual volt free contacts for pump trip, high pressure, low pressure and sensor health.
  • All volt free contacts are for use with electrical supplies up to 240v with a maximum current draw of 5 amps.
  • RS 485 Connectivity.
  • Hours run counter (per pump).
  • Excessive start alarm (>3 times in 8 hours).
  • Fill system option (Not available on 130D/230D).

Please note; colour may vary (Black/White case)

Product Downloads
SKU 17397
Weight (kg) 35.0000
Noise Rating < 75 dBA
Product Code 17397
Positioning Floor standing
Pump Quantity 2 Pump