Contact our factory for your next fixed shell and tube application. Adams 225 East Park Drive Tonawanda, NY 14150-7813, R.P. Shell side only if tube bundle welded into shell and therefore not removable. The AF Series Heat Exchanger is ideal for hazardous or flammable gasses or liquids. I well recall in my earlier years as a junior applications engineer, my mentor of the time showing me how to make a selection, saying that the enquiry we were looking at ‘was leading him by the nose’ to a certain type of heat exchanger design. Whitepaper - Guide to the right TEMA Exchanger (en-GB), Tubes can be leaned internally by rodding, Non-hazardous liquids & gases below 40barg, Non-hazardous liquids & gases above 40barg, Fixed tube sheet, channel integral with tubesheet. In some cases there can be more than one solution. From the three-letter coding for each type of exchanger (AEW, BEW, AEP and so on, as listed in the table) a picture can be built up of the final shell-and-tube assembly of front-end stationary head, shell type, and rear-end head, L - Fixed tubesheet like “A” stationary head, M - Fixed tubesheet like “B” stationary head, N - Fixed tubesheet like “N” stationary head, Copyright © 2020FUNKE Wärmeaustauscher Apparatebau GmbH. Adams P.O. Adams, Subsidiary of Service Filteration Corporation, All Rights Reserved, No packing required to isolate the two fluids, Can be used for hazardous or flammable gasses or liquids, Design Temperature: available in a wide range of low or high temperatures; consult factor. When frequent cleaning of the tube side is needed, NEN type exchangers are preferred over BEM types. Figure 1 illustrates a typical unit that may be found in a petrochemical plant. Adams Shell and Tube Heat Exchangers are available in a wide range of materials of construction including carbon steel, stainless steels, admiralty brass, and cupro-nickels to name a few. Another question that is often asked is ‘what is the difference between the three types of TEMA B, C and R codes?’ To answer that in detail would require a full review of TEMA standards, but the following guide lines may be useful: generally for chemical process services, more stringent than TEMA C, but not as stringent as R, or generally moderate commercial and process application requirements. The decision as to which class of TEMA to use does not lie with the heat exchanger manufacturer, but with the design authority responsible for that part of the project. Tube side only. 3. Many customers have asked what forms the basis of a heat exchanger design for their particular enquiry. R.P. Box 95359 Palatine, IL 60095-0359, Copyright 2020 R.P. Adams tubular heat exchangers meet TEMA and ASME Section VIII, Division I code requirements. The AKU Kettle Type Series Heat Exchanger includes a removable U-tube bundle, stands up well to stress, and the shell side can be flooded with ammonia as cooling media. Adams 225 East Park Drive Tonawanda, NY 14150-7813, R.P. Straight Tube and Fixed Tubesheets Examples such as BEM, AEM, NEN, etc., This TEMA type is the simplest design and is constructed without packed or gasketed joints on the shell side. Obviously it is not possible to cover all aspects of design or all available TEMA types of heat exchanger in just a few short lines, but the table and diagrams overleaf show some of the more commonly used types of TEMA heat exchangers [TEMA is the Tubular Exchanger Manufacturers Association — see table below]. The advent of modern computer programmes has enabled many of us to thermally rate heat exchangers quickly and accurately. Heat Exchanger Heater Condenser Chiller Re boiler; One stream process fluid and the other is water or air. info@rpadams.com | Tel: (716) 877-2608 | Fax: (716) 877-9385 | Toll Free: 1-800 896-8869. Following three TEMA types of fixed-tubesheet heat exchangers can be made 4. The AF Series Heat Exchanger is ideal for hazardous or flammable gasses or liquids. R.P. Adams P.O. Some of them are essential for the operation of the site, while others help us to improve this site and the user experience (tracking cookies). This is because in NEN heat exchangers, the tube ends can be accessed for cleaning by removing the end covers without having to disconnect any piping to the inlet and outlet nozzles. You can decide for yourself whether you want to allow cookies or not. A shell and tube exchanger consists of a number of tubes mounted inside a cylindrical shell. The tubesheet is welded to the shell and the heads are bolted to the tubesheet On the NEN heat exchanger, the shell and the head is welded to the tubesheet. Adams tubular heat exchangers meet TEMA and ASME Section VIII, Division I code requirements. Box 95359 Palatine, IL 60095-0359, Copyright 2020 R.P. But how do we decide which design of heat exchanger for a given application will satisfy the operating conditions, all the mechanical/thermal criteria, and give a cost-effective solution? R.P. Adams can supply units having wide range of shell diameters, gas flow capabilities and liquid flow rates. This AEM-type heat exchanger is ready for shipping. R.P. AF Series Heat Exchangers – TEMA Type BEM, BEL, NEN. R.P. Regardless of the type of industry the exchanger is to be used in there are a number of common features (see Condensers). Shell side only. Adams can supply units having wide range of shell diameters, gas flow capabilities and liquid flow rates. We use cookies on our website. 1. His experience gained over the years enabled him to do this, but what was the thought process that went into selecting the right type of heat exchanger? Figure 2 : TEMA type NEN A fixed-tubesheet heat exchanger has straight tubes that are secured at both ends to the tubesheets welded to the shell. Expansion bellows may be required. Probably the most commonly used in our industry. Contact our factory for your next kettle type heat exchange application. Full technical advice can be given by a heat exchanger applications engineer. Both side process streams (not utility) One stream process fluid and other is steam or hot oil: One stream is a condensing vapour and the other stream is cooling water or air. The table is intended as a general guide only and does not purport to cover all aspects of design. The AKU Kettle Type Series Heat Exchanger includes a removable U-tube bundle, stands up well to stress, and the shell side can be flooded with ammonia as cooling media. Adams, Subsidiary of Service Filteration Corporation, All Rights Reserved, Removable tube bundle for easy inspection or replacement, cleaning, U-Tube fully relieves stress effects from thermal expansion and contraction, No packing required to isolate the two fluids, Shell side Can be flooded with Ammonia as cooling media, Design Temperature: available at a wide range of low or high temperatures; consult factory.