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Evaporators

TECHNICAL INFORMATION
The main applications of our dry-expansion exchangers are: water, liquid or brine solutions cooling in refrigeration plants and hot water production in heat pumps.

Suitable refrigerants are: HCFCs, HFCs, and others, unless they are compatible with material construction.

THERMOKEY shell & tube evaporators have cooling capacity range, at specified standard conditions, from about 18 up to 1500 kW for TME serie and from about 130 up to 1420 kW for TLE serie, with 1 to 4 refrigerant circuits.

The water connections standard position is vertical, but on request can be placed horizontally, at right (DX) or left (SX) side when facing the refrigerant header. Besides the exchangers can be ordered with removable tube bundle (FTE) when not supplied as standard feature.

The dimensional data contained in this catalogue are to be intended indicative taking into account the manufacturing tolerances. We reserve the right to make changes to this catalogue without prior notice.


MATERIALS

The quality of the materials used to manufacture THERMOKEY exchangers satisfy the requirements of the European pressure vessels Codes. The standard type construction of the shell & tube exchangers consists of following materials: carbon steel for headers, tubesheets, shell, refrigerant and water connections, copper for exchanger tubes, brass or carbon steel for the baffles, asbestos free for gaskets, bolts made of alloys steel.
On request, other materials compatible with our production facilities can be used.
Please contact our Technical Staff for non standard materials and cooling capacity.

ACCESSORIES
Following optionals are available on request:
- loose or welded mounting supports
- waterside counter flanges
- insulation

TESTS, VESSEL CODES, WORKING LIMITS
Each exchanger undergoes to a pressure test on the refrigerant side (also differential test when more than single circuit) and water side according to the THERMOKEY standards or different Codes procedures. Being the shell & tube exchangers pressure vessels, the safety requirements are assured by strictly following the main European Codes during the design, choice and use of suitable materials, manufacturing and controls, pressure test and final documentation.

Exchangers according to ASME code are also available; please contact our facilities for request.