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  • To Be A Super Installer

    Supporting Your Success

  • Remote Monitoring and Control

    DL2, DL3 and Vbus.net--System Is Near At Hand

  • Control Logic and Diagram

    Customizing Your Control System-We Are Your Tailor

  • Control Panel

    CSA Inspection Approval

  • Control Panel

    Standard, Professional and Reliable

Free ProSol L-HT Glycol
+

Heat Transfer Fluid for vacuum tube collectors. Available in 5 US Gal (18.93 L) pails and 50 US Gal (189L) drums.

Premixed reversibly vaporizable special Propylene Glycol-based Heat Transfer Fluid, for solar heating installations

ProSol L-HT Solar Glycol - Technical Product Brief

ProSol L-HT Solar Glycol - MSDS Sheet

Chemical Composition:

A blend of virgin (not recycled) propylene glycol, water and inhibitors.

Physical Properties:

Appearance
  Clear, fluorescent yellow colored liquid
Density 22°C (72°F)
  1055.40 kg/m³ (65.88  lb/ft³)
Refractive index 22°C (72°F)
  1.3903
pH value
  9.0-10.7
Reserve Alkalinity (min)
  16.0 ml
Viscosity 10°C (50°F)
  10.6481mPa·s (10.65 cps)
Boiling point     °C @ 101 kPa 
  106
(°F@ 760 mmHg)
  222
Flash point 
  none
Water content 
  46 – 50 %
Frost protection °C /°F
  -35 / -3

Getting it right is critical in maintaining industry reputation

Modern-day Thermal Solar combo-systems for DHW and Space heating are subject of overheating and stagnation because of low heat demand in summer time. Continuing design improvements of solar collectors sig­nificantly change the requirements to the heat transfer fluids regarding its ability to take thermal stress.

However, stagnation temperatures of up to 400°F (204°C) in flat plate collectors still can be handled by traditionally inhibited solar fluids. In contrast to this, absorber temperatures of up to 550°F (287°C) as reached in vacuum tube collectors require the use of a more ad­vanced fluid containing reversibly vaporizable cor­rosion inhibitors.

Solarnetix Inc. recently introduced a new Pro Sol – L-HT propylene glycol/ water mix, with specially designed industrial package of liquid inhibitors.

The Glycol Mix has been designed especially for use as a heat transfer fluid in solar thermal systems operating under elevated thermal conditions (vacuum tube collectors).

In case of stagnation those components evaporate together with propylene glycol and water, the collector remains empty, and no damaging insoluble residues may cause any flow obstruction or blocking.

The corrosion inhibitors contained in ProSol™ L-HT reliably provide protection against acid corrosion, scale and sedimentation formation in systems with materials normally used in solar thermal installations.

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