Mikrofill Systems

Part of the Stuart Turner Group, Mikrofill Systems Ltd has built its success on quality products, reliability and outstanding customer service.

With over 25 years of experience manufacturing in the UK we are committed to ensuring that all our products are geared towards energy efficiency and always satisfy and exceed the most stringent environmental requirements.

Our rapidly expanding range of products include commercial condensing boilers ranging from 70-130KW wall hung and 350-550KW floor standing, hot water loading systems, dosing pots, pressurisation equipment & the new Aquaboost range of booster sets.


For advice please call us today 312 761-5826

Product Details

Mikrofill 3

Sealed System Flood Protection & Pressure Management

The MIKROFILL 3 is the most advanced 'direct type' pressurization unit available, suitable for LPHW/CHW applications of any size.


The MIKROFILL 3 advanced control system electronically monitors sealed system pressure and provides a sophisticated leak detection alert capability and protection against flooding and the resulting damage to building infrastructure, fittings and decor.


Unlike 'pump type' pressurization units the MIKROFILL 3 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 has been tested and approved in accordance with ASSE LEC 2009-2021 and 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 pressurization unit incorporates:

  • Leak detection and flood prevention
  • System fill volume indicator
  • System filling and pressure management
  • Integral backflow prevention
  • Compact and simple to install
  • System status and fault code display
  • BMS capability
  • Low power consumption
  • The ability to fill directly from mains/ boosted water supply any LPHW or CHW system from empty
  • Comprehensive electronic pressure management




Mikrofill 3
Key Features
  • Leak detection and flood prevention
  • Low power consumption
  • System fill volume indicator
Technical Specification
Product Code MIK120025
Warranty 2 years
Conformity certification ASSE LEC 2009-2021 Approved
Cold fill pressure - max 95 psi
Inlet pressure - max 100 psi
Flow rate - nominal 3.7 US gallons/min at 30 psi
Power supply (Vac/Ph/Hz) 120 V a.c. / 1 / 60 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 ½” NPT
System outlet ½” NPT
Drain (via tundish) ¾” NPT
Height 10.63”
Width 9.84”
Depth 4.41”
Weight - dry 11 lbs

Mikrofill 3 Pressurization Overview

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