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Extruded finned tubes
At the heart of most Thermofin heat exchangers’ technology lies Thermofin’s aluminium extruded finned tubes, they are the lead actors on which rests the efficiency and longevity of our units. Their particular design (mono or bimetal) provides great resistance (fin stiffness) as well as exceptional heat transfer characteristics (longevity, temperature range). The mechanical bond joining liner tubes and aluminium wall insures no corrosion occurs between fin and tube, a key factor in permitting the delivery of the specified duty by your heat exchanger, it also offers superior durability.
Heat pipes
Based on Thermofin’s extruded fin tube technology, our selection of heat pipes is designed to suit the need of the Original Equipment Manufacturer. Whether they be bent in ‘U’ shape or equipped with end fitting to facilitate their filling, Thermofin’s heat pipe designs are devoted to match your thermal and geometrical requirements. Their superior thermal performance is partly linked to the fintube inside capillary surface, created during the tube manufacture, this surface promotes the refrigerant migration.
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Spiral Finned Tubes :
FINNED TUBES
While it is not necessary to tell engineers what finned tubes are, or that their use is mandatory in cases of gas-liquid heat exchange where the film coefficient ratio is above 2, it is essential to tell the engineers that M.J.Patel's FINNED TUBES are backed by not only engineering excellence of manufacture, but also by our zealously guarded reputation for the finest quality of all our products.
T-FINS
Helical Straight strip wound on the tube are mechanically secured. The tubes are required grade of steel, the fins are aluminium for maximum tube-wall temperature of 121 deg C (250 deg F) and mild service conditions.
L-FINS
Helical strip bent to L-shape are mechanically secured to the tube with the outer surface of the tube totally enclosed with fins, for full fin contact and protection of tube from chemical action of the gas for maximum tube-wall temperature of 177 deg C (350 deg F) and moderate service conditions.
G-FINS
Helical straight strip wound into pre-cut grooves on the outer wall of the tube, fin and groove lips mechanically closed for maximum tube-wall temperature of 371 deg C (700 deg F) and extreme working conditions.
STUDDED TUBES
We have developed state of the art Technology for studded Pipes and Tubes of Carbon, Alloy and Stainless Steel Material having extremely low clear gaps between studs. These are used in Refinery Services and Fluidized Beds Boiler Coils.
LONGTITUDINALLY FINNED TUBES
We have indigenous developed automatic welding machines for giving low distortion Longitudinally welded Finned Tubes used in low capacity Boilers.
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In Boiler tubes, when water is evaporated to steam are called Steam Generating Tubes. These Tubes also form the Walls of the Boiler and are hence called Water Walls or Water Wall Panels. These Tubes have very complicated shapes to allow Inspection openings and burner throats and fabrication require intricate binding on CNC programmable bending Machines and checking on 3D layouts.
M.J.Patel can supply these tubes with ends swaged/reduced to smaller diameters or expanded to higher diameters. Ends can be supplied fully ground and annealed to facilitate Expansion or bevelled to weld to Header Stubs. The Water Wall Panels are High frequency tube to tube welded and then bent on Panel Bending Machines or the Gas tight panel can be made by welding Fins to tubes using Low Temperature Automatic Welding Machines using CO2 and Filler wires.
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We can provide many kinds of heatpipe for the thermoelectric cooling system and also can provide the custom design. Please do not hesitate to contact us, if you have any requirment.
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For pressure vessels and reaction vessels in M.S., Al, Monel, Inconel, Cupronickel, etc., M.J. Patel employs the latest techniques for expanding tube ends into tube sheets. High pressure tests are always carried out on these heat exchangers before they leave the factory. Brass, copper, M.S. and S.S. tube sheets are used. Tube sheets are also made out of mild steel, alloy steel or stainless steel and baffle plates are made out of mild steel or stainless steel. M.J. Patel fabricates 'U' Tube heat exchangers which are used in fertilizer plants, petrochemical and power project complexes.
Fabrication of U-Tubes for Heat-Exchangers Spans at extremely Short Delivery time, even Extra long (23 mts.) is M.J. Patel's specialty. Tube Bending as per TEMA. Tubes to any specification and any length can be supplied in extremely short time due to our wide Mother Tube Stocks.
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APV ParaTube
The APV ParaTube is ideal for Food and Beverage applications processing products:
* With particles
* Products sensitive to texture
* High viscosity products
And has a proven history within a number of product applications such as:
Pulpy juices * Baby foods * Nectars * Soups * Citrus cells * Sauces * Fruit mash * egg products * Diced fruits * Chocolate * Concentrate fruit juices * Coffee extract * Jams & jellies * Yeast slurries * Tomato products * Edible oils * Vegetable purees * Milk * Viscous dairy products * Cosmetic products * Puddings & desserts * CIP solutions * Waste water
APV ParaTube (tubular heat exchangers) can be supplied with either straight tubes or corrugated tubes. They all follow a similar construction format with a single tube or number of smaller tubes enclosed within an outer shell. They are available in the four configurations (Double, Triple, Quadruple or Multi-rube) and can be manufactured as a fully-welded design, with removable end caps or with built-in thermal expansion protection of O-rings or packing between the shell and tube bundle.
Key Benefits
* High flexibility in design to match multi-purpose line or plant
* Wide product range to cover almost any challenge in product processing
* Easy and low cost maintenance
* Resistant to fouling
Materials: AISI 304L, AISI 316L, Duplex SAF2205, SAF2507 and
other alloys
Temperature: -30 to 300 Deg.C
Pressure: 0 up to 100 bar gauge
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Hydraulically expand heat exchanger tubes into tube sheets through the direct application of high internal hydraulic pressure within an established expansion zone.
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Shell and Tube Heat Exchanger
Bowman Shell and Tube Heat Exchangers: are intended for heating or cooling process fluids, they are for example suitable for closed circuit cooling of electrical equipment using demineralised water and for cooling water soluble oil solutions in quenching tanks.
The shell side usually contains the process fluid and the tube side water from the town mains or a cooling tower, or an ethylene glycol solution from a chiller unit. In certain circumstances this flow arrangement can be reversed, but please consult us first.
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Polytetra GmbH from Mönchengladbach/Germany introduces the POLYTETRAFLON(r)
Fluoroplastic PFA heat exchangers for semiconductor processes
Available with immediate effect: fluoroplastic PFA heat exchangers according to the customer’s specifications, available in different geometries, as bundle and tubular heat exchangers, with heat-exchanging surfaces of between approx. 0.3 and 15.0 sq.m.n.
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From now on also in ECTFE !!!!
Please notice that we have developed a brandnew shell and tube
heat exchanger made from ECTFE!!!!
Please contact us if you need further assistance.
We would be glad to help you with advice and to discuss the benefits to
use our heatexchangers!!
The Polytetra-team
Tel. ++49 2166 9590 0
FAX ++49 2166 9590 55
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Shell & Tube
Specificity and efficiency, qualities that best express the know-how and particular expertise Thermofin has been able to develop in the domain of Shell and Tubes Heat Exchangers. Whether you need express retubing, repair, alterations or, alternatively, a complete custom designed new heat exchanger, Thermofin is able to propose top-notch engineering service, unparalleled quality control and superior manufacturing.
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For more than 60 years, Votator scraped surface heat exchangers have been replacing slow, inefficient batching operations with more uniform, controllable and repeatable continuous processing. The Votator II incorporates the most popular features of the Thermutator and Votator lines, making it extremely easy to maintain.
The Votator II replaces the Thermutator and medium duty Votator units, and is also available as a vertical unit.
Typical applications are heating and cooling cheese sauce, pudding, caramel, deboned meat, pet food, and fruit products.
- 3A, ASME, USDA approved
- Pedestal mounted drive has smaller footprint, fewer parts
and less bulk than other designs; no belts or sheaves;
shaft coupling is eliminated
- Versatile jacket designs: brine, water, steam and
refrigeration with unique integral accumulator option
- Boltless V-Lock® heads for quick disassembly
- Unique slide-lock attachment holds blades securely on
the shaft, while making disassembly/assembly quick and
easy
Variety of options for drives, seals, blades, heat transfer, tube materials, mutator shaft diameters and cylinder mounting
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12 W/sq.in.
Heat Exchangers for heating medium viscosity oils and lubricating oils.
15 W/sq.in.
Heat Exchangers for heating medium viscosity oils and lubricating oils.
23 W/sq.in.
Heat Exchangers for heating aqueous solutions, cleaners and some heat transfer oils.
4 W/sq.in.
Heat Exchangers for heating glues, resins and asphalt.
6 W/sq.in.
Heat Exchangers for heating residual oils, fuel oils and asphalt.
8 W/sq.in.
Heat Exchangers for heating residual oils, fuel oils and asphalt.
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Application areas
* Power plants
* Steel mills
* Process industry
* Transformer stations
* Gas processing plants
* Heat recovery
* Chemical plants
* Cargo/chemical tanker ships
* Cruise ships
* Engines
* Steam and gas turbines
* etc.
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Spiral tube heat exchangers provide high efficiency in a small profile for high pressure and severe service applications. The heat exchanger consists of dual manifold multi-tube spiral assembly inserted into the shell, where two fluid paths are created for full counterflow heat transfer. Standard tube bundle assemblies are stainless steel with welded tube to manifold joints.
Up to 40% more efficient than a shell and tube
Pressure ratings exceeding 10,000 psig (690 barg)
Compact and lightweight
Highly resistant to thermal and pressure shock
Least expensive construction for exotic materials
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Spirally wound tube-in-tube full counter flow heat exchangers for low flow rates of high temperature and/or high pressure fluid or gas. Widely used for gas/vapor condensation.
Fully drainable inner and outer coil
No dead spots or crevices
Excellent for multi-phase/multi-component fluids & slurries
Wide variety of materials available including Copper, 316 Stainless steel, Inconel 625, Hastelloy, Titanium, Zirconium, PTFE, and a variety of other nickel and stainless steel alloys.
Tri- clamp and electropolished units to meet sanitary requirements
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The PICKER heat exchangers range mainly consists of 6 families, each with its own body diameter and a given number of tubes, and there are even multiple optional versions, depending on :
> the construction materials,
> the SHELL-SIDE baffles,
> the TUBE-SIDE covers,
> the length of the tubes (and consequently of the exchange surface),
etc.
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Made of DIABON®
(graphite impregnated with phenolic resin)
* Heat transfer areas up to 2,500 m² )
* Tube lengths up to 9.0 m
* Maximum pressure: 10 bar
* Maximum temperature: 200°C
Many flexible options
* header types
* tube and baffle arrangements
* shell materials
DIABON® HF1 Tubes and Tube Sheets
Tubes and tube sheets can be supplied with additional carbon fiber reinforcement on request
Essential advantages:
* More than a 50 % increase in bursting pressure
* Improved pressure surge resistance
* Optimized features for production needs
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Oil/water Heat Exchanger
Tube Bundle
Extremely compact as well as large construction series
AM
EKM
ECM
CM
SSCM
UKM
UKTM
with and without integrated aluminium ribs. Up to 35 bar oil pressure, cooling capacity from 1.5 to 300 kW, respectively 25 to 1 500 l/min. oil flow. Optionally with bypass valve for pressure peaks. Simple to clean.
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WATER-OIL HEAT EXCHANGERS WITH TUBE BUNDLE
They consist of small diameter smooth tubes; this allows the best compromise between high thermic yield and low pressure loss. For a good exchanger practices some oil rates are indicated in the tables. Going down to the lowest rate of flow, indicated in the tables, the low oil speed causes a great loss in yield, whereas a rate of flow which is superior to the maximum indicated, causes great pressure loss and does not considerably increase the thermal yield. The yield diagrams indicate the heat quantity each exchanger can disperse according to the difference between oil and water mean temperatures. Such diagrams assume the exchangers to be working with the maximum oil rate indicated in the table. With the minimum rate, the yield decreases by about 10%. Required water volume is a follows:
85 l/h for each kW to disperse with water temperatures (20°C)
170 l/h for each kW to disperse with higher water temperatures
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HW Serie:
Water-oil shell and tube heat exchangers, used for the cooling of industrial systems and in the marine sector. Fully extractable shell and tube for better maintenance of the heat exchanger. Aluminium body, designed to allow maintenance without the need to disassemble the heat exchanger. Cast iron heads in the industrial version, bronze in the marine version. Fluid circulation exclusively in countercurrent.
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Basco Type 500 Shell & Tube Heat Exchangers
The Basco Type 500 remains the industry standard in ultimate value and long-term reliability. This proven fixed tubesheet shell & tube heat exchanger offers the cost effectiveness that comes with having a highly standard design, while easily providing for various options to meet specific customer requirements.
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Our Shell and Tube Heat Exchangers are designed to transfer heat efficiently and effectively while reducing fuel consumption. A Heat Exchanger can be combined with any of our other systems or as a retrofit. In addition, Epcon has several designs that combine burnerless ovens with Thermal Oxidizers.
The price of the fuel necessary to run a Thermal Oxidizer can be exorbitant. In order to lower operating costs, a heat exchanger can be used. Heat Exchangers are used for transferring heat from one fluid (such as air) at higher temperature to another fluid at a lower temperature, thus making use of heat which would otherwise be expelled. In the various systems manufactured at Epcon, heat exchangers are used for the following purposes:
1. Pre-Heating the process gas as it enters the thermal oxidizer (also called Primary heat exchange). The heat is transferred from the hot gas leaving the combustion process to the cold air entering it. The two basic methods are Regenerative and Recuperative.
2. Using the gas for Secondary heating systems, such as process heating of the manufacturing facilities and heating boilers.
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Basco Type OP Heat Exchangers
First introduced in 1962, the Basco OP design has proven to be the preferred TEMA Type AEW shell & tube heat exchanger in the market. The "OP", or "O-Ring Protected" design features removable tube bundle, nozzle location flexibility, and a unique threaded O-ring retainer that permits removal of the reversing bonnet without disturbing the piping or draining the shellside fluid. Removal of the channel cover permits full inspection and cleaning of the tube side.
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