Heat Exchangers
 
 
 
 
FINNED COILS
 
 
 

The wide choice of material, patterns and accessories, together with the high flexibility of its production, allows FACO to design and manufacture custom-made products for all applications and for a broad selection of fluids: water, glycol, steam, ammonia, other refrigerant fluids, hydrocarbons, technical gases, etc.

 
   
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TUBE PATTERNS AND MATERIALS
 
 
 

FINNED BLOCK

It is composed of tubes mechanically expanded into self-spacing collars die-formed on the fins, which have a waved profile studied in FACO’s thermo-dynamic research laboratory, with the aim at the efficiency of the heat exchanger to get the best cost/performance ratio.

 
 
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COMPONENTS AND ACCESSORIES
 
 
 
  HEADERS

Materials, arrangement and connection side can be combined according to customer request. Connections are equipped with standard joints such as flanges or threads, or any other type of special connection if required. Drain and vent plugs are supplied as standard. Materials: carbon steel, stainless steel, copper, cupronickel, aluminum.
 
 
  FRAME

Sized according to the dimensions specified by the client, it can be delivered with integrated drip trays and drop eliminators. Closing plates and special profiles can be supplied for a better integration of the heat exchanger in the plant.
Materials: galvanized steel, carbon steel, stainless steel, aluminum, copper..
 
 
  DRIP TRAYS

Installed or integrated in the lower part of the exchangers, or even at an intermediate height, they are available for duct mounting or for installation inside units. The position of the condensate drain connections can be defined according to customer request. They are available also in an airtight version, for duct mounting. Materials: galvanized steel, stainless steel, aluminum, copper.
 
 
  DROP ELIMINATORS

Installed to avoid condensate carry-over in case of high speed of air in connection with dehumidification, they can be supplied in various materials according to working conditions.
Materials: PPTV, aluminum, stainless steel.
 
 
  AIRTIGHT EXECUTION

When it is necessary to isolate the flow through the fins from the external ambient, solutions with various grades of tightness can be adopted, that range from a simple sealing of the passages connecting the duct with the ambient, to a fully welded airtight construction.
 
 
  DEFROSTING SYSTEMS

When dealing with refrigeration processes or wherever frost formation on the finned block is foreseen, the exchanger can be equipped with defrosting systems such as electrical heating rods and hot water rain or spray devices; evaporators can be delivered with a hot gas defrosting system.
 
 
  SPECIAL COATINGS AND SURFACE TREATMENTS

Particular environmental and operational conditions may require stronger protection for both the exchange surfaces and the structures. The right combination of base material and coating can guarantee the exchanger’s reliability and longevity, even within aggressive environments. Among the surface treatments available are tinning, polyurethane paint, hot dip galvanizing, cataphoresis, Heresite®, Rilsan® Thermoguard®, Blygold®. ISO 12944 coating systems are also available up to C5M grade.
 
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DESIGN AND CERTIFICATIONS
 
 
  FACO operates on an ISO 9001:2015 certified quality management system. The thermodynamic design is carried out with the assistance of an in-house-developed software, based on parameters measured in the Company’s thermodynamic testing laboratory, built in accordance with ASHRAE standards. FACO holds the AHRI certification for the performance of the water exchangers. Conformity to CE directives in force is verified for all the production. Pressure vessels design pursuant to ASME VIII div.1 or EN 13445-2; other calculation codes and FEA-based design available on request. FACO has welding and brazing procedures and operators qualified to ASME IX and EN 9606, EN 15614, EN 13585, EN 13134 available. Heat exchangers can be designed and manufactured in anti-seismic or shockproof execution. ASME “U” designator (stamp) certified construction available.
For more detail, see sections Engineering and Certification.
 
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HEAT RECOVERY
 
 
  In addition to multi-coil systems with conventional coils, FACO offers a wide range of specific equipment for heat recovery: heat pipe, rotary heat exchangers, air-to-air plate heat exchangers.  
   
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INSPECTABLE HEAT EXCHANGERS
 
 
  Manufactured with removable water boxes, or with tubular collectors and exchange tubes connected through plug-equipped nipples, they allow inspection and eventual mechanical cleaning. These exchangers are suitable for fluids that contain polluting elements such as mud, weeds, microorganisms, lime, etc.  
   
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SAFETY DOUBLE-TUBE COILS
 
 
  When it is necessary to prevent the air or gas passing through the fins from being contaminated by a fluid eventually escaping from any leaks in the tubes - as it is the case for the coolers of electric machines - the double-tube construction is the solution that guarantees improved safety. Every tube of the exchange bundle is composed of two coaxial tubes between whom canals are obtained, which convey any leakage towards collection chambers placed close to the tube sheets, where it can be detected without it escaping and thereby without damaging the equipment.  
   
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THERMOGUARD® CIRCUITING
 
 
  The freezing-proof solution.
Based on the principle that it is not the ice itself that causes the coils to break, but it is the increasing pressure of the water trapped in the bends when the centre of the fin block starts to freeze, the ThermoGuard system allows for this pressure to be discharged through a secondary circuit connecting all the bends to a safety valve.
 
   
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