Mikrofill Pressurisation

Mikrofill 3

Pumpless Pressurisation Unit

The Mikrofill 3 is the most advanced 'direct type' and 'pumpless' pressurisation unit available, suitable for LPHW/CHW applications of any size.


Unlike 'pump type' pressurisation units the Mikrofill 3 is a 'pumpless pressurisation unit' and is designed to be connected directly to a buildings incoming mains/boosted water supply and fill a heating or chilled water system without the use of a pump.


The Mikrofill 3 is the most energy efficient unit of its kind consuming as little as 10 watts/hr on standby and 30 watts/hr fully operational.


The Mikrofill 3 pumpless pressurisation unit incorporates:

  • Fluid Risk Category 4 backflow prevention
  • The ability to fill directly from mains/ boosted water supply any LPHW or CHW system from empty
  • Comprehensive electronic pressure management


Pre – commissioned packages are available which include the Mikrofill 3 with appropriately sized vessels and service drain valves.


BIM Object Ready

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Mikrofill 3 Mikrofill 3
Mikrofill 3
Mikrofill 3
Key Features
  • Integral fluid risk category 4 backflow prevention - No RPZ valve required
  • Fills any LPHW/CHW system from empty - Connects directly to the mains/boosted water supply
  • Wall mounted unit only 270 mm high x 250 mm wide - Compact enough to fit in the smallest of plantrooms
Technical Specification
Product Code MIK120023
Warranty 2 years
WRAS WRAS Approved Product (2307805)
Conformity certification UKCA, CE
Cold fill pressure - max 4.7 bar
Inlet pressure - max 5 bar
Flow rate - nominal 14 l/min (at 2 bar)
Power supply (Vac/Ph/Hz) 230 V a.c. / 1 / 50 Hz
Current - full load 1.0 Amps
Current - starting 1.0 Amps
Fuse rating 3 Amp
BMS Relays - max load 5 Amps
Cold water inlet 15 mm Compression
System outlet 15 mm Compression
Drain (via tundish) ¾" BSP
Height 270 mm
Width 250 mm
Depth 112 mm
Weight - dry 5.0 kg

Mikrofill 3 - Changing the cold fill setting


Mikrofill 3 - Checking the fault log


Mikrofill 3 - Checking the sensor calibration