FYI Document

BRAZED PLATE vs. SHELL & TUBE EVAPORATORS

Two styles of evaporators are commonly used in Advantage process liquid chillers. The evaporator is where the process water is cooled during the refrigerant-to-water heat exchanger portion of the chilling cycle.

Brazed Plate Evaporators are used in most Advantage portable liquid chillers and smaller central liquid chillers. Their space efficient shape and high efficiency allows for compact machine design. The non-ferrous construction eliminates rusting and alternating plate design makes the brazed plate evaporator less susceptible to freeze damage when compared with shell and tube evaporators.

Shell & Tube Evaporators are physically larger and heavier
than brazed plate evaporators but are more tolerant of fluid
contaminants.

Comparison of Brazed Plate and Shell & Tube Evaporators

CONSTRUCTION MATERIALS USED
Brazed Plate : Stainless plates with copper brazing material
Shell & Tube : Carbon steel shell with copper tubes and baffle plates.

WATER CHANNELS
Brazed Plate : Alternating plates
Shell & Tube : Shell

REFREGERANT CHANNELS
Brazed Plate : Alternating plates
Shell & Tube : Tubes

For more information about Liquid Chillers and evaporators
call the Advantage Sales Department at 317-887-0729.