DOWCAL 200 Inhibited Propylene Glycol based Heat Transfer Fluid – ChemEqual

Propylene glycol, also known as Propane-1,2-diol is used as a heat transfer fluid and antifreeze, particularly as a low corrosion non-toxic substitute to ethylene glycol based cooling systems. In aluminium based cooling systems like HVAC/R, propylene glycol has shown efficacy comparable to ethylene glycol.

Benefits of PG:

• Low freezing point
• The ability to decrease the freezing point of water
• Burst protection
• Low mammalian toxicity
• Low flammability
• Excellent heat transfer properties
• A high boiling point, low vapor pressure

Water based fluids expand in volume when they freeze, causing rupturing of pipes and containment vessels. Ethylene glycol has severe toxicological and environmental implications making it unsuited for cases of human exposure. Water-PG mixtures in low temperature conditions do not create extra pressure on vessel walls and in case of leakage, they are not hazardous. This makes Propylene glycol the ideal active ingredient as heat transfer fluid in industrial systems.

DOWCAL 200 manufactured by DOW Chemicals is propylene glycol based heat transfer fluid antifreeze that has a wide range of application.  It has been formulated to operate at temperatures higher than what ordinary glycol fluids can. It has a low acute oral toxicity and includes a specially designed inhibitor package to prevent corrosion of common materials used in HVAC, Food beverage processing, solar power plants etc.

Applications:

• Single fluid process heating and cooling
• Closed-loop water based heating & air conditioning systems
• Food and brewery industry
• HVAC systems
• Pharmaceuticals
• Secondary cooling and heating
• Freeze and Burst protection
• Renewable energy systems

ChemEqual is a unique online chemical and equivalents database and B2B marketplace where Propylene Glycol based antifreeze like DOWCAL 200 and its equivalents can be easily searched and enquired here.

Cooling of closed-loop system causing concern? Not anymore – look for ethylene glycol based heat transfer fluid

DOWTHERM SR-1 has been manufactured with 100% virgin ethylene glycol. The fluid has never been blended with other glycol streams (and do not contain recycled glycol) so as to ensure batch-to-batch consistency. Each product has been specially formulated with heavy-duty industrial inhibitor packages that help in preventing corrosion. The inhibitors are long lasting, easily maintained and replenishable, which means intervals between fluid change outs are extended and fluid expense is minimized. 

It serves as an inhibited ethylene glycol based heat transfer fluid. It is a formulation of 95.5 percent by weight ethylene glycol and a specially designed package of industrial corrosion inhibitors. The fluid is dyed fluorescent pink for leak detection purposes. Solutions in water provide freeze protection to below -50°C (-60°F) and burst protection to below -73°C (-100°F).

DOWTHERM SR-1 finds its use in closed-loop, water-based HVAC, process heating and cooling, food industry applications within temperature range. It is essentially comprised of Ethylene Glycol at about 95.5% and Performance Additives at about 4.5%. It appears as Fluorescent pink in colour.

DOWTHERM SR-1 fluid has an operating temperature range of -60°F to 250°F; with fluid freeze protection to below -60°F, and system burst protection to below -100°F. The fluid comprises of corrosion inhibitors that have been specially formulated for HVAC systems to keep pipes free of corrosion without fouling. It can be specified for use in new HVAC systems or as a replacement fluid for use in existing systems. This fluid is also suitable for ice storage systems — used either in the closed circulation loop from the chiller to the storage medium; or, in solution with water, in the medium itself. DOWTHERM SR-1 Chemical Suppliers are many and can be found through various business portals.

Different types of sanitizers and disinfectants can be found in the ChemEqual directory, the largest online directory for chemicals supplier all over the world wherein buyers can have a direct access to all the products and their equivalent brands along with having the convenience of sending direct enquiry to suppliers.