WATER GLYCOL COOLED CONDENSER
By far the most common type of condenser in refrigeration systems, chemical processing plants, pulp & paper and pharmaceutical applications, where the refrigerant vapours condense into liquid in the shell while the secondary fluid (often water or glycol) circulates in the tubes. The heads are usually flanged, ensuring easy access for cleaning and maintenance. Compared to air-cooled exterior condensers, Docal’s shell & tube condensers are smaller in footprint, allow for thermal energy recovery, can be installed indoors, typically lasts years longer, have a higher transfer rate and consume far less energy for the end-user. All our condensers are custom built to your specifications (2 or 4 pass configurations) and are certified according to the latest ASME standards, available with National Board (USA) or CRN (Canada) certifications. Post-weld Heat treatment, corrosion allowance and marine applications (seawater) available as options.
CASCADE CONDENSER
Docal’s cascade condensers are often installed in systems operating at very low evaporating temperatures while maintaining a plant’s ambient air condensing parameters. In these circumstances, the refrigerant evaporating and condensing phases are performed in several compression steps, thus the presence of a cascade condenser. The low temperature side of the systems uses the cascade exchanger as a condenser, while the high temperature side uses the cascade exchanger as an evaporator.
Another crucial advantage of Docal’s cascade condenser is the possibility or circulating two different refrigerants through each side of the exchanger, benefiting from the particular thermal properties of the chosen refrigerants (one particularly efficient example is using Ammonia on one side and CO2 on the other side).
BRINE GLYCOL HEATER
Docal’s brine heaters and glycol heaters cover an endless array of applications where waste heat from the compressors are utilized efficiently throughout the facility in order to maximize energy conservation while reducing environmental impacts. Examples include underfloor heating for frost heaving protection in skating rinks, bond break systems in order to rapidly melt the ice between major events in arena venues, desuperheaters, snowmelt pits for ice resurfacers, various heating systems in refrigerated warehouses to prevent surface frost, energy conservation for ventilation systems as well as heating water for a wide array of application. All our heaters are custom built to your specifications (1 pass or several pass configurations, welded or flanged heads, special metallurgy) and are certified according to the latest ASME standards, available with National Board (USA) or CRN (Canada) certifications.