Keep it efficient
The advantage of a scheduled maintenance is to keep both thermic exchange and design temperature efficient
Multi-brand service
Nuova Saimar offers a highly specialized service for the maintenance of all kinds of heat exchangers and in order to offer a full multi-brand service, can also supply heat exchangers spare parts of all major manufacturers, such as Tranter, Swep, Reheat e Jucker, Alfa Laval, Gea, Apv, Sondex, Schmidt Bretten, etc.
Nuova Saimar provides ordinary maintenance work (both scheduled and on-demand) and extraordinary maintenance work. The high quality of our services has been reached thanks to a longstanding expertise achieved in the collaboration with the major industrial groups, in different fields and in different process applications.
The correct functioning of a heat exchanger, according to the design data, directly affects productivity and therefore of the production costs of the finished product. Unfortunately, all the exchangers, due to the nature of the fluids that pass through it, tents to get dirty with the subsequent performance drop as heat conveyer. To reduce the impact of performance decay on product cost, it is necessary to supervise the exchanger and schedule an appropriate maintenance.
Prevent corrosion
Ordinary maintenance prevents the chance of holes or cut on the exchange surfaces caused by corrosion.
Avoid pressure loss
Heat Exchangers maintenance avoids pressure loss due to chocking and impurities.
Encrustment effects on heat exchangers
Here is a list of the main kind of scales:
- Particulate scales
- Corrosion scales
- Biological material deposit scales
- Crystallization scales
- Chemical reaction scales
- Freeze scales
Scale is usually due to multiple causes and tends to grow over time. The “Tubular Exchanger Manufacturers Association” (TEMA, 1988) recommends, in the design phase, to take into consideration a reasonable scale, so that the exchanger can be used also if dirty, although cleaning cannot be avoided.
Heat exchangers maintenance
Scheduled and Ordinary Maintenance
A scheduled maintenance allows to lengthen exchangers’ working live and to keep on having the same performances they had been designed for. Furthermore, a preventive ordinary maintenance allows also, in the long terms, to save money, as its costs is lower than an extraordinary maintenance, occurring, for example, in case of sudden interruption. Extraordinary maintenance entails often the full replacement of the exchangers or very expensive intervention.
Nuova Saimar gives to its Clients the possibility to schedule a continuous Maintenance Plan that foresees regular surveys of the heat exchangers and of their working conditions.
Extraordinary Maintenance
In some cases, due to a particularly critical condition of either the heat exchanger or some of its components, the Client is compelled to require an extraordinary intervention.
In this event, as well, Nuova Saimar is able to provide a highly qualified service and all the necessary know-how.
A DEDICATED DEPARTMENT
Our warehouse hosts now a whole department dedicated to heat exchanger maintenance and is equipped not only for ordinary and scheduled interventions, but also for urgent intervention of extraordinary maintenance.
Maintenance Intervention provided by Nuova Saimar
Before any kind of intervention on the heat exchanger, it is necessary to carry out a series of activities, in order to:
- Determine the kind of fouling for the correct choice of the cleaning product to be used;
- Evaluate the clogging level of the heat exchanger
- Evaluate the different options for the treatment and dumping of the cleansers used (eco-friendly);
- Evaluate numbers and dimensions of the exchangers to be treated for the correct choice of the cleaning unit;
- Determine the presence of suitable nipples.
Maintenance intervention on heat exchangers can be carried out both on-site and at Nuova Saimar’s premises.
CLEANING
The dirt layer that piles up over time on the surfaces hinders the heat exchange and worsen the performances. For this reason, it is necessary to keep cleaned the surfaces.
In general, heat exchangers cleaning can be divided into two categories:
- Chemical washing;
- Mechanical and/or hydrodynamic washing.
One method does not exclude the other: it is possible, for example, to perform before a chemical washing and then a high-pressure cleaning.
CRANCKSET REPLACEMENT
Heat exchanger gaskets are subject to usury and substitute them before they get too damaged means avoid losses and serious damages, and, over time, it means costs and time saving.
During our maintenance activities, all gaskets are replaced with high quality gaskets, glued with a special non-hardening component, in accordance with the gaskets’ original technical specification that allow to avoid further thermal treatment, as vulcanization, that is however available on demand or for particular kind of gasket. This special kind of gluing that we use eases the following maintenance operation carried out on the plant.
The same of the tube heat exchanges.
In our cranckset replacement intervention we pay particular attention to the gaskets’ material that shall be used, as they shall be compatible with process fluids, with the plate kind and material, and with the technical features, as the pressure levels for which the exchanger has been designed.
REGENERATION
Equipped with a highly qualified technical department, Nuova Saimar can offer a regeneration service of the whole exchanger, for example:
- Tube bundles, perforated flanges, baffles substitution;
- Plates substitution and / or repair in whatever material;
- Accessories (tie rods, nozzles, flanges) substitutions;
- Pressure test with certificated and calibrated pressure gauges;
- Non-destructing testing;
- Technical assistance for Recertification procedures
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About Us
Nuova Saimar s.r.l.
Via B. Ricasoli no. 10
48123 Ravenna - Italy
F.C. and V.A.T. no. IT-01270010398
Ravenna Company Register no. 17328
Share Capital € 100.000,00 paid-up
R.E.A. of Ravenna no. 132379
Via B. Ricasoli no. 10
48123 Ravenna - Italy
F.C. and V.A.T. no. IT-01270010398
Ravenna Company Register no. 17328
Share Capital € 100.000,00 paid-up
R.E.A. of Ravenna no. 132379
Contact us
nuovasaimar@nuovasaimar.it
nuovasaimar@postecert.it
Phone: +39.0544.453054
Fax +39.0544.453677
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