Glycol Autofill Units

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Glycol Autofill Units

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Glycol Autofill Units
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  • Summary
  • Applications

    HVAC systems using bladder and compression tanks up to 90 psi (621 kPa) cold-fill pressure

  • Description

    The Armstrong Glycol Auto-Fill Units provide automatic glycol make-up for HVAC systems. The specially molded mixing tank offers a compact package with built-in housing for controls and make-up pump

  • Materials

    Polypropylene (holding tank), bronze (pump, isolation and check valves), stainless steel/brass (fill ball valves)

  • Performance Range
    • Suitable for all bladder and compression tanks up to 90 psi (621 kPa) cold-fill pressure
    • Higher cold-fill pressures available
  • Temperature

    Max fluid temp 60°C (140°F); max ambient temp 40°C (104°F)

Space efficient installation

  • Complete package and space-saving design for minimal footprint
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Safe and reliable glycol handling

  • Large mixing tank, accommodating system overspill through safety valve and low fluid-level warning (Automatic cut-out switch monitors tank status and shuts down the pump in the event of critical mixture levels) 
  • Standardized, professional component sourcing and factory assembly for maximum lifetime performance 
  • Single source responsibility for best product lifetime support
Case studies

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3750 Pressurisation Unit - brochure

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