BAX is a condensing heat recovery unit built from AISI 316 Ti stainless steel that must be located after the flue gas exit output of boilers running only on natural gas or LPG. The flue gases passing through the recovery unit undergo a considerable reduction in temperature, and, if the system return temperature is below 57°C, the water contained in the gas condenses by exploiting the latent heat of condensation. The recovery unit must be hydraulically connected in series to matching boiler; the increase in water temperature is only a few degrees centigrade and it is therefore necessary to verify the minimum working temperature allowed by the boiler.

Energy saving achieved by partial sensible heat recovery of the boiler’s flue gas by preheating the feed water; Exchanger element of flue gas/water, non-condensing type, suitable for methane gas boiler operation, manufactured from finned tubes made from carbon steel P235GH, arranged in several rows with distribution manifolds. Frame coated hermetic carbon steel frame, directly coupled to the boiler smoke box. Flue gas outlet fitting conical, flanged, equipped with a top circular flange for chimney connection; Pipes and headers for instrument assembly and hydraulic connection

Distribution headers are designed to allow economic distribution of the media (steam, water, thermal oil) to the individual users. The Distribution headers are individually designed to match the system requirements using ASTM A 106 Gr.B pipe with dished ends, and a sufficient number of flanged fittings suitably sized to match the customer’s requirements. Steam headers are also provided with a dirt leg. External paint finish for insulation and coating purposes, undertaken on site by the customer. Wall fixing brackets or floor support saddles are available upon request. COV headers are manufactured and tested with procedures approved according to the PED Directive 2014/68/EU. Diameter, length and connections are designed according to the customer’s requirements specified in the enquiry. Benefits: – Reduction of installation costs owing to use of prefabricated elements – Space saving – PED 2014/68/EU certification included, according to the requested category Pipes and headers for instrument assembly and hydraulic connection

Horizontal cylindrical double skin design, for the collection and the storage of the oil volume contained in the system and in the boiler. Built in carbon steel with external bitumen lining, complete with drain valve, manhole and various fittings for the connection to the system.

Design pressure 5 or 12 bar The VEX series steam accumulators are semi-fixed, horizontal, complete with accessories. Our accumulator receives steam from a boiler, therefore it has no internal coil for heat exchange. During normal operation a portion of the steam condenses; therefore, when running, the steam accumulator is partially filled with water. If the steam demand exceeds the boiler maximum flow, a portion of the water inside the accumulator evaporates making up for the high instantaneous steam demand. The VEX steam accumulator complies with the PED Directive 2014/68/EU. Provided with: – steam diffuser pipe inside the tank – sheet steel support saddles able to ensure unit support – insulating coating with high density mineral wool and aluminium sheet finish

Design pressure 5 or 12 bar The VEA expansion vessel has been designed to absorb the volumetric variations of the water in the system, due to the temperature increase. The system is kept at a certain air/nitrogen pressure, according to the operating pressure of the hot water or super-heated water boiler. It usually tops up the supply to super-heated water boilers. The VEA expansion vessel complies with the PED Directive 2014/68/EU. Provided with: – steel sheet supporting legs – hatch, connections and fittings – external finish with paint

Design pressure 5 bar The expansion vessel is designed to absorb the oil volumetric changes caused by the temperature variation. It consists of a horizontal tank pressurised with nitrogen. The pressure changes from 1 bar with cold oil to 4 bar with oil at 280°C. The tank complies with the PED Directive 2014/68/EU. It is made of P275GH carbon steel. KW EN10028-3, externally painted. VEO is provided with the accessories required for the pressure and automatic level control. Switches, fuses and indicator lamps are located in the OPX heater control panel. On request: If the VEO expansion vessel is not paired with an ICI thermal oil boiler of the OPX or OPX REC series but rather to a boiler of a different brand, it is possible to request a control panel.

Design pressure 12 (15 bar upon request) The EVX-series steam boilers are horizontal semi-fixed boilers provided with an exchange coil containing a primary fluid such as thermal oil or super-heated water, complete with regulation and safety accessories. Provided with: – sheet steel support saddles and section bar support base. – insulating coating with high density mineral wool and aluminium sheet finish.