REF-C CLOSED-CIRCUIT COOLING TOWERS EVAPORATIVE COOLING TOWERS WITH CENTRIFUGAL FANS In order to best meet the quietness and reliability requirements of its customers, Decsa has designed the REF-C series closed circuit evaporative tower, a cooling tower equipped with dynamically balanced centrifugal fans with double suction and low noise, mounted on shafts which, depending on the model, can be tubular or solid. Designed for contamination-free water cooling and suitable for all kinds of applications in industrial cooling and HVAC systems, the REF-C closed circuit evaporative tower features a structure and panels made of hot-dip galvanised Z-725 steel sheet, which can be further protected with a special layer of epoxy powder coating called DecsaCOATING PLUS. The REF-C series is also built to the quality standards of the ISO 9001 and ISO 14001 Quality System. Moreover, like the REF-A cooling tower and the Decsa evaporative condensers, the coils heat exchangers used for this evaporative tower are designed with first quality EN ISO 12305-3 grade E235 electro-welded tubes, spark welded, bent into continuous coils and subject to strict quality controls. The coils are then subjected to a galvanisation process by immersion in a molten zinc bath in full compliance with EN ISO 1461. CLOSED-CIRCUIT COOLING TOWERS REF-C: TECHNICAL CHARACTERISTICS Structure and panels All structures and containment panels of the REF-C series are made of hot-dip galvanised Z-725 steel (725 g/sqm zinc coating). The panels, which can be removed without the aid of dedicated equipment in order to simplify routine maintenance, are bolted and sealed for perfect water tightness and complete with one or more hatches for internal inspection. Cold water basin The REF-C series is equipped with a basin for collecting cooled water. In addition, it has a chilled water outlet connection with an easily serviceable vortex filter, a drain and overflow connection, a make-up water connection complete with float and a bleed-off pipe. Heat Exchanger The heat exchange section of the REF-C evaporative tower consists of a coil made of top quality steel tubes, which are individually bent and tested at a pressure of 25 bar in a water bath. The coil is then tested with compressed air at 7 bar, and then galvanised by immersion in a molten zinc bath. The containment casing consists of hot-dip galvanised Z-725 steel panels assembled with mastic for perfect sealing. Fan section The REF-C evaporative tower features low-noise centrifugal fans with double inlet and forward curved blade impeller. Self-aligning, permanently lubricated ball bearings complete the equipment. Transmission is by means of belts and trapezoidal pulleys. Finishing As with all Decsa products, it is possible - to complete the offer - to further protect the evaporating tower with a special protective epoxy powder coating(DecsaCOATING PLUS) available in all colours of the RAL scale. Highlight Materials Hot-dip galvanised steel sheet Z-725 Number of models 36 Capacity from 70 to 3708 kW CLOSED CIRCUIT COOLING TOWERS REF-C For all technical details, download the catalogue IDEAL FOR... HVAC E PROCESS COOLING Thanks to its low-noise centrifugal fans, the REF-C series integrates best where quietness andreliability are a key point in the choice of equipment; this closed circuit cooling tower is also ideal for plant applications where high efficiency solutions with low running costs and reduced accessory costs, such as the transport of the evaporative tower itself, are required. Designed for evaporative cooling of water without contamination, the REF-C series is therefore particularly suitable for solutions in the food, automotive, power generation, air conditioning, chemical, metallurgical and industrial sectors. Low noise The centrifugal fans installed on the REF-C evaporative coolers are double inlet with forward curved blades, dynamically balanced and mounted on solid or tubular shafts. Equipped with silencers on the suction or discharge side, these cooling towers are extremely quiet. Reduced transport costs The REF-C series is designed to minimise ancillary costs, particularly transport costs. It is possible to transport the various sections in normal lorries, or if transport by sea is required, in normal containers, without the need for escorted oversized transport. Shell and tube heat exchanger coil The evaporative cooling of the REF-C cooling tower is implemented using a tube bundle. The coils are made of first-class electrowelded tubes EN ISO 10305-3 grade E235 bent into continuous coils and subjected to strict quality controls. High-strength construction The structure of the REF-C series closed circuit evaporative tower consists of Z-725 galvanised steel panels (725 g/sqm), perfectly bolted and sealed for water tightness and complete with watertight doors for internal inspection. Spare parts, maintenance and service for REF-C? Visit the Service page AVAILABLE OPTIONS 50% and 100% dry runningcoils Non-finned AISI steel coils Protection with DecsaCOATING PLUScoating Additional silencers on air intake and outlet Additional silencers on air intake and outlet WEBINAR REF-C Cooling tower maintenance Do you have a cooling system REF-C or CFR-C series? Learn more about ordinary maintenance for evaporative condensers and cooling towers equipped with centrifugal fans and hot-dip galvanised steel heat exchanger coils: watch our training webinar! Ordinary maintenance of cooling system CFR-C & REF-C series Evaporative Condensers CFR-C series Closed-circuit cooling towers REF-C series Maintenance of the heat exchange section Maintenance of the lower fan section and water basin ‍ Read more: Cooling tower maintenance: guideline Decsa Srl Via Cappelletta 1 Voghera (PV) - Italy +39 0383 69411 P.I. 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