Heat Exchangers for HVAC Systems
Plate, brazed plate and shell-and-tube heat exchangers in HVAC — district heating, chilled water, heat pumps, domestic hot water and energy recovery.
Where heat exchangers fit in HVAC
HVAC systems use heat exchangers wherever two water loops, a water loop and a refrigerant, or a water loop and ambient air must exchange heat without mixing. Common locations: district heating substations, chilled-water isolation, heat-pump evaporators and condensers, domestic hot water generation, and energy-recovery ventilation.
Gasketed plate-and-frame for hydronic systems
The default for water-to-water HVAC duties. Compact, efficient and serviceable, sized for low approach temperatures so a small primary supply can serve a larger secondary load. Used in district heating substations, building chilled-water isolation, swimming pool heating and large domestic hot water.
Brazed plate for refrigerant duties
Brazed plate heat exchangers serve as evaporators and condensers in air-source and water-source heat pumps, chillers and packaged refrigeration units. Compact, leak-tight and matched to common refrigerants including R32, R410A, R134a and CO2.
Shell-and-tube for high-pressure or large duties
Larger HVAC plants and central plant rooms use shell-and-tube exchangers for high-flow chilled-water service, steam heating coils and any duty above the pressure or temperature limits of plate constructions.
Energy recovery
Air-to-air plate or rotary exchangers recover heat from building exhaust to pre-condition outdoor air. Water-to-water exchangers recover heat from chiller condenser loops to feed domestic hot water — often the most cost-effective energy upgrade available to a building.
Selection for HVAC
Send the primary and secondary flow rates, temperatures, pressure drop budget and any refrigerant or design-code requirement. Jiangxing supplies the full HVAC range — gasketed, brazed and shell-and-tube — sized to the duty and built in Shanghai for global delivery.
Send your working conditions to Evan
Share your medium, temperatures, flow rate and pressure — Evan will return a thermal selection and indicative pricing after reviewing the available data.