PETROFLO HVAC-711 HEAT TRANSFER FLUID / ANTIFREEZE PROPYLENE GLYCOL BASED HEAVY-DUTY FULL STRENGTH CONCENTRATE PetroFlo HVAC-711 Heat Transfer Fluid is a propylene glycol-based fluid containing an inhibitor additive package that controls corrosion of metals, helps prevent scaling and fouling of heat transfer surfaces and buffers the pH to maintain it in the optimum operating range. It was specifically developed for use in heavy-duty industrial applications where propylene glycol is preferred over ethylene glycol, including use as a coolant in large stationary engines and in process heating/cooling systems. This is the full strength concentrate version that requires dilution with water before use. Applications • Cooling systems for large stationary engines • Natural gas pipeline line heaters and bath heaters • Cooling systems for electrical generator set engines • Power plant combustion air preheaters • Refinery and chemical plant high load heating/cooling systems • Pulp and paper processing plant heating/cooling systems Benefits • Propylene glycol based for applications where ethylene glycol is not suitable • Excellent corrosion protection • Prevents scaling and fouling • Maintains optimal pH range • Full strength concentrate for custom dilution