Heat protection - Import export

Refra heat exchangers for evaporators are made of aluminum or copper fins and convert the system’s refrigerant liquid to gas. Usually they are used to cool and sometimes dehumidify air. Refra evaporator coils are made using inner grooved or smooth copper tubes, which range from 7 mm to 12,7 mm in diameter. The operating tube pressure reaches 80 or even 120 bar, making evaporator coils perfectly suitable for CO2 systems. The frame can be made using aluminum, galvanized or stainless steel and can be coated with a special Aqua-Aero anti corrosion protection. Heat exchangers can be manufactured up to 50 kW capacity for both low and medium temperatures.

SDM series doors are designed for negative temperature cold rooms, that can maintain a temperature from 0°C to -40°C. Injected with 92-150 mm thickness polyurethane foam these doors can guarantee maximum thermal insulation and protection of premises. These doors have a parametric sealing gasket with a heating cable that protects the sash rubber from freezing at low temperatures. A special sliding mechanism, made of high-quality aluminum profiles, ensures smooth door movement and convenient access to the premises. Standard door surface is made from a painted metal sheet and covered with polyester, but there are possibilities to use stainless steel or fiber glass for better durability. Special plastic profile frames help prevent cold leakage and ensure constant cold temperature preservation in the room. Doors are also equipped with a special micro-lift technology and an inside emergency lock.

DM series doors are designed for negative temperature cold rooms, that can maintain a temperature from 0°C to -40°C. Injected with 92-150 mm thickness polyurethane foam these doors can guarantee maximum thermal insulation and protection of premises. These doors have a parametric sealing gasket with a heating cable that protects the sash rubber from freezing at low temperatures. Standard door surface is made from a painted metal sheet and covered with polyester, but there are possibilities to use stainless steel or fiber glass for better durability. Special plastic profile frames help prevent cold leakage and ensure constant cold temperature preservation in the room. Doors are also equipped with a special micro-lift technology and an inside emergency lock.

Refra heat exchangers for condensers are made of copper tubes and convert the system’s refrigerant gas to liquid form. Usually they are used for refrigeration equipment as a remote condenser or as a part of a condensing unit. Refra condenser coils are made using inner grooved or smooth copper tubes, which range from 5 mm to 12,7 mm in diameter. The frame can be made using aluminum, galvanized or stainless steel and can be coated with a special Aqua-Aero anti corrosion protection. Heat exchangers can be manufactured from low to high capacities to fully meet customer needs.