About Us
Xtror Engineering Pvt Ltd is a renowned engineering, manufacturing & service firm offering a wide-ranging portfolio of process equipment solutions to the Oil & Gas industry, Petrochemical industry, Processing Plant Industry, Power generation sectors and Heavy Industry that includes Air Cooled Heat Exchangers, Steam Condensers and Heaters, Shell and tube heat exchanger, Shell and Fin heat exchanger, Fin tubes and other custom Equipment.
We understand that every customer has special needs, goals and limitations. That’s why we customize each of our solutions, finding new ways to reach objectives efficiently. Our priorities are quality and customer satisfaction, and we aim to make that clear to every customer through our engineering, manufacturing, testing, installation, commissioning and service
We are having in-house engineering department that can take your process information and design the most optimal equipment to meet your project requirements. Thermal process design or mechanical design, our engineers are ready to undertake any project while guaranteeing process performance. FEPL can provide replacement O.E.M. equivalent bundles for your existing air cooled heat exchangers, shell and tube exchanger or compressor coolers. Our replacement bundles are also available with A.S.M.E. stamps and hassle free installation without requiring field modifications with the fastest delivery times across the industry.
G – Type Fintube/ Embedded Fintube
Metal is merely shifted, not removed, by a helical groove 0.2-0.3 mm (0.008-0.012 in) ploughed into the outside of the base-tube wall. The displace metal is rolled back on each side of the fin to hold it in place after the aluminium fin is physically wound into the groove under strain. This is why it’s also known as an embedded finned tube. The thickness beneath the groove is the effective thickness of the base-tube wall. This kind provides great thermal and mechanical contact between the fin and the groove. Despite the fact that the base tube metal is exposed to the outside, testing conducted under server settings revealed that long-term corrosion is required before any bond failure develops. The G-type fin tube can withstand temperatures of up to 750 degrees Fahrenheit (450 C degree)
Metal is merely shifted, not removed, by a helical groove 0.2-0.3 mm (0.008-0.012 in) ploughed into the outside of the base-tube wall. The displace metal is rolled back on each side of the fin to hold it in place after the aluminium fin is physically wound into the groove under strain. This is why it’s also known as an embedded finned tube. The thickness beneath the groove is the effective thickness of the base-tube wall. This kind provides great thermal and mechanical contact between the fin and the groove. Despite the fact that the base tube metal is exposed to the outside, testing conducted under server settings revealed that long-term corrosion is required before any bond failure develops. The G-type fin tube can withstand temperatures of up to 750 degrees Fahrenheit (450 C degree)
Application
- Oil and gas refineries
- Petroleum, chemical and petrochemical industries
- Natural gas treatment
- Steel making industry
- Power plants
- Air conditioning
- Compressor coolers
Advantages
- High fin stability, excellent heat transfer, high operating temperature.
- The fin/tube wall contact is constant because of the setting and makes it possible to use a wall temperature of up to 450°C.
- The fin is set throughout its length and consequently does not unwind even when partially uprooted.
- This kind of finned tube is one of optimum choices for having good effectiveness/cost ratio.
Weakness
- The fin is not so strong to resist mechanical damage when external forces applied on fin area
- Handling shall be done with care to avoid any damage.
- Finned tubes may be damaged while using either steam or high-pressure water for cleaning
- As the fins are helically wrapped in grouves, un-finned area is not covered which can be exposed to corrosive media and galvanic corrosion at the base of the fins can be accrued
- Tube shall be straight with smooth out side area to make a good finned tube
- It is hard to use core tube again when finning is failed.
- Fins should be fixed at both ends avoiding un-wrapping
Application
- Oil and gas refineries
- Petroleum, chemical and petrochemical industries
- Natural gas treatment
- Steel making industry
- Power plants
- Air conditioning
- Compressor coolers
Advantages
- High fin stability, excellent heat transfer, high operating temperature.
- The fin/tube wall contact is constant because of the setting and makes it possible to use a wall temperature of up to 450°C.
- The fin is set throughout its length and consequently does not unwind even when partially uprooted.
- This kind of finned tube is one of optimum choices for having good effectiveness/cost ratio.
Weakness
- The fin is not so strong to resist mechanical damage when external forces applied on fin area
- Handling shall be done with care to avoid any damage.
- Finned tubes may be damaged while using either steam or high-pressure water for cleaning
- As the fins are helically wrapped in grouves, un-finned area is not covered which can be exposed to corrosive media and galvanic corrosion at the base of the fins can be accrued
- Tube shall be straight with smooth out side area to make a good finned tube
- It is hard to use core tube again when finning is failed.
- Fins should be fixed at both ends avoiding un-wrapping
L-Foot Fin/ Wrap-On Fin
Finned on the L-Foot Tubes are utilised for applications that require a low temperature. L-Foot tension wound finned tubes are made out of a thin aluminium fin strip wrapped helically around the tube circumference. On one side of the fin strip, a “foot” is constructed first (hence the name L-Foot). The strip is then securely twisted around the tube, with the foot resting on the tube’s outside surface. Each L’s short horizontal leg makes perfect contact with the base tube surface. The fin strip’s tension as it wraps around the tube helps to seat the fin foot securely on the tube and hold the fin in place. At lower temperatures, L-footed finned tubing allows for maximum heat transfer.
The fins’ ends are stapled together to prevent the aluminium fin from unravelling and losing touch with the tube’s fin foot. The L-type fin tube is suitable for temperatures of up to 300 degrees Fahrenheit (149C degree).
Application
- Oil and gas refineries
- Petroleum, chemical and petrochemical industries
- Natural gas treatment
- Steel making industry
- Power plants
- Air conditioning
- Compressor coolers
Advantages
- Suitable for low-temperature application
- The finning type is the most cost effective method compared to the others.
- The failed fins can be easily removed during production and bare tube can be used again for finning.
- There is no need for make a helical grove over the core tube.
- It is possible to place the fins on a very thin-walled tube with is particularly desirable when using expensive alloys as core tube.
- The tube can withstand a temperature of up to 130°C without the risk of atmospheric corrosion or thermal stress.
Weakness
- The fin is not so strong to resist mechanical damage when external forces applied on fin area
- Handling shall be done with care to avoid any damage.
- Finned tubes may be damaged while using either steam or high-pressure water for cleaning
- As the fins are helically wrapped in grooves, un-finned area is not covered which can be exposed to corrosive media and galvanic corrosion at the base of the fins can be accrued
- Tube shall be straight with smooth out side area to make a good finned tube
- Fins should be fixed at both ends avoiding un-wrapping.
LL-Foot Fin / Overlapped L
The fins are created from strips in a similar way to the L type except that the foot is prepared into a carefully controlled stepped double L shape, rolled into a taper that allows it to curl. The LL-Foot Fin – Overlapped L is next helically coiled onto a tube under tension. The fin clings the tube, with one fin overhanging the foot of the next fin and the base tube completely covered. The tube is well protected from corrosion as a result of this. In corrosive settings, this form of tube is frequently used as an alternative to the more expensive extruded type fin.
Fins are secured at each end in the same way that L fins are. The LL-type fin tube is suitable for temperatures of up to 350 degrees Fahrenheit (177C degree).
The fins are created from strips in a similar way to the L type except that the foot is prepared into a carefully controlled stepped double L shape, rolled into a taper that allows it to curl. The LL-Foot Fin – Overlapped L is next helically coiled onto a tube under tension. The fin clings the tube, with one fin overhanging the foot of the next fin and the base tube completely covered. The tube is well protected from corrosion as a result of this. In corrosive settings, this form of tube is frequently used as an alternative to the more expensive extruded type fin.
Fins are secured at each end in the same way that L fins are. The LL-type fin tube is suitable for temperatures of up to 350 degrees Fahrenheit (177C degree).
| Bare tubes characteristics Fin Type | L – FOOT TYPE | |
| Fin Material | Aluminum, Copper, Steel | |
| Fin Height | INCH | 1/4 ~ 1 |
| MM | 6.35 ~ 25.4 | |
| Tube Material | Carbon Steel Carbon Chromium Stainless Steel Titanium Steel Copper | |
| Tube Size(OD) | INCH | 5/8 ~ 2 |
| MM | 15.88 ~ 50.80 | |
| Tube Length | FEET | ~ 60 |
| MTR. | ~ 18 | |
| Minimum Tube Wall Thickness | FEET | 0.065 0.047 (Titanium Steel) |
| MTR. | 1.65 1.2 (Titanium Steel) | |
| FPI | 4 ~ 13 | |
KL Footed Fin / Knurled L Footed Fin
The KL fin is also known as the knurled L fin. This finned tube is almost identical to the Wrap-On fin and is made using both Wrap-On and Embedded techniques. The fins are made from strips that have been prepared into a L shape that is comparable to the L type, then rolled into a taper that causes it to curl. It is then helically wound onto the tube in a continuous loop under tension. The tube is hugged by the fin. A spinning tool knurls the base tube, and then the foot of the fin is knurled into the knurling of the base tube, resulting in a tight bond and improved thermal performance.
The foot of one fin bumps up against the next fin if the correct fin strip is utilised, and there is no space between the fins. This helps to protect the tube from corrosion. In a similar way to L fins, the fins are attached at each end to prevent unwinding. In applications involving metal, KL -Foot tension wound finned tubes are typically employed. Up to 320°C (608°F) maximum operating temperature
Advantages Of THE KL FIN SYSTEM
- Corrosion-resistant Tubes
- Vibration resistance
- It can withstand temperatures of up to 320°C (608°F).
- High thermal performance and stress resistance combined with protection from air corrosion is a one-of-a-kind combo.
- Any form of finned tube can be replaced with KL
KL – TYPE FINTUBE SPECIFICATION:-
| Fin Type | KL TYPE | |
| Fin Material | Aluminum, Copper, Steel | |
| Fin Height | INCH | 1/4 ~ 1 |
| MM | 6.35 ~ 25.4 | |
| Tube Material | Carbon Steel
Stainless Steel Copper |
|
| Tube Size(OD) | INCH | 5/8 ~ 2 |
| MM | 15.88 ~ 50.80 | |
| Tube Length | FEET | ~ 60 |
| MTR. | ~ 18 | |
| Minimum Tube Wall Thickness | FEET | 0.072 |
| MTR. | 1.83 | |
| FPI | 4 ~ 13 | |
Extruded Fin Tube
Extruded Fin Tube, also known as Bimetallic Fin Tube, is a popular finning method for a variety of applications. The fins are created by extruding them onto an aluminium muff tube that is built to fit over the base tube with a tight tolerance.
Extrusion is performed using a Continuous Fin Extruder with Three Tooling Rolls, and high pressures in the range of 1200 psi are used. The cold working procedure ensures a perfect bond between the tube and the fin, resulting in great heat transfer efficiency. Simultaneously, the mechanical strength of the fins is greatly improved.
Fin Tubes are used in AIR FIN COOLERS, DRIERS, RADIATORS, and other applications in industries such as food and agriculture, power plants, chemical industries, steel plants, and chiller plants, among others.
Extruded Fin Tube, also known as Bimetallic Fin Tube, is a popular finning method for a variety of applications. The fins are created by extruding them onto an aluminium muff tube that is built to fit over the base tube with a tight tolerance.
Extrusion is performed using a Continuous Fin Extruder with Three Tooling Rolls, and high pressures in the range of 1200 psi are used. The cold working procedure ensures a perfect bond between the tube and the fin, resulting in great heat transfer efficiency. Simultaneously, the mechanical strength of the fins is greatly improved.
Fin Tubes are used in AIR FIN COOLERS, DRIERS, RADIATORS, and other applications in industries such as food and agriculture, power plants, chemical industries, steel plants, and chiller plants, among others.
Extruded Fin Tube (Bimetallic Fin Tube) have the following properties:-
- Cold Extrusion is the manufacturing process.
- Excellent Fin-to-Tube Bond
- Excellent Heat Transfer Efficiency
- Mechanical Resistance: Excellent (as a result, unlike other fin tubes, it can be cleaned often with high-pressure jets). As a result, downtime is reduced and total life is increased.)
- Corrosion Protection: Because it completely covers the base tube, it provides excellent corrosion protection (except bare ends).
- Temperature Range: Up to 300 degrees Celsius.
|
Sr. No |
Particulars |
Range |
|
1 |
Base Tube Material |
Stainless Steel, Carbon Steel, Alloy Steel, Titanium , Copper, Duplex Stainless Steel, Inconel etc. (all material in the theoretical limit) |
|
2 |
Base Tube Outside Diameter |
12.70 mm to 38.10 mm |
|
3 |
Base Tube Thickness |
1.50 mm And Above |
|
4 |
Base Tube Length |
500 mm Min To 15000 mm |
|
5 |
Fin Material |
Aluminum, Copper |
|
6 |
Fin Thickness |
0.3mm ,0.35mm, 0.4mm, 0.45mm, 0.55mm, 0.60mm, 0.65mm |
|
7 |
Fin Density |
197 FPM ( 5 FPI ) to 433 FPM ( 11 FPI ) |
|
8 |
Fin Height |
9.8 mm to 16.00 mm |
|
9 |
Bare Ends |
As per Client Requirement |
|
10 |
Manufacturing Capacity |
5,00,000 Meter Per Annum |
Low Fine Tube
Integral Fin Tube is another name for the ‘Low Fin Tube.’ In today’s industry, this style of fin tube is commonly employed.
Low Fin Tubes/Integral Fin Tubes are becoming more popular in fluid heat exchangers. Unlike other Fin Tubes, their use isn’t restricted to air-to-liquid heat exchangers. As a result, they’re also found in a variety of Shell and Tube heat exchangers.
The fins are made by rolling the fin inside the base tube. The height of the fins is extremely low. However, by increasing the number of fins per inch or the fin density, the heat transmission area can be considerably improved. The rolling is done using a specific machine, and the finished product is available in both straight and U bend configurations.
Fin Tubes are used in Oil Coolers, Shell and Tube Heat Exchangers, and other applications.
Properties Of Low Fin Tubes or lntegral Fin Tubes:-
- Manufacturing Process:- Cold Rolling of Fin on the Base tube Itself.
- Fin To Tube Bond:- NA f(fin is made from the base tube itself)
- Heat Transfer Efficiency:- Good
- Mechanical Resistance: – Good
- Corrosion Protection: – Moderate
- Temperature Range:- Up to Maximum 415 Deg C
Manufacturing Range (Low Fin Tube/Integral Fin Tube):-
|
Sr. No |
Particulars |
Range |
|
1 |
Base Tube Material |
Stainless Steel, Carbon Steel, Alloy Steel, Titanium, Copper, Duplex Stainless Steel, Inconel etc. (all material in the theoretical limit) |
|
2 |
Base Tube Outside Diameter |
12.70 mm to 38.10 mm |
|
3 |
Base Tube Thickness |
2.11 mm And Above |
|
4 |
Base Tube Length |
500 mm Min To 15000 mm |
|
5 |
Fin Density |
Up to 1023 FPM ( 26 FPI ) |
|
6 |
Bare Ends |
As per Client Requirement |
|
7 |
Manufacturing Capacity |
7,00,000 Meter Per Annum |
Welded Fin Tube
The finning in this sort of Fin Tube is Spirally Wound, as the name implies. Spirally winding the fin around the Base Tube and Pipe is how the fins are made. During winding, the fin is continuously welded to the tube using high-frequency welding, resulting in the strongest bond possible.
This sort of Fin Tube is employed in applications where there are a lot of mechanical stresses, such as constant vibrations.
The nearly flawless heat transfer efficiency is also ensured by the welding link between the Tube and the Fin. It may also provide the widest temperature variations.
These Fin Tubes are used in RADIATORS, AIR PREHEATERS, WASTE HEAT RECOVERY SYSTEMS, BOILER FIN TUBES, and other industries such as power plants, chemical plants, steel plants, and chiller plants.
The finning in this sort of Fin Tube is Spirally Wound, as the name implies. Spirally winding the fin around the Base Tube and Pipe is how the fins are made. During winding, the fin is continuously welded to the tube using high-frequency welding, resulting in the strongest bond possible.
This sort of Fin Tube is employed in applications where there are a lot of mechanical stresses, such as constant vibrations.
The nearly flawless heat transfer efficiency is also ensured by the welding link between the Tube and the Fin. It may also provide the widest temperature variations.
These Fin Tubes are used in RADIATORS, AIR PREHEATERS, WASTE HEAT RECOVERY SYSTEMS, BOILER FIN TUBES, and other industries such as power plants, chemical plants, steel plants, and chiller plants.
High Frequency Welded Fin Tube (Continuously Welded Spiral Fin Tube):-
- Manufacturing Process:- Continuously Welded Spiral Fin Tube
- Fin To Tube Bond:- Excellent
- Heat Transfer Efficiency:- Excellent
- Mechanical Resistance:- Excellent (Hence can be frequently cleaned with high pressure jets unlike other fin tubes. Thereby reducing down time and increasing overall life)
- Corrosion Protection:- Moderate
- Temperature Range:- Up to Maximum 500 Deg C
Manufacturing Range (Welded Fin Tube/Solid Fin Tube):-
|
Sr. No |
Particulars |
Range |
|
1 |
Base Tube Material |
Stainless Steel, Carbon Steel, Alloy Steel, Titanium, Copper, Duplex Stainless Steel, Inconel etc. (all material in the theoretical limit) |
|
2 |
Base Tube Outside Diameter |
16.00 mm to 225.00 mm (½” NB Pipe to 8” NB Pipe) |
|
3 |
Base Tube Thickness |
2.50 mm And Above |
|
4 |
Base Tube Length |
500 mm Min To 12000 mm |
|
5 |
Fin Material |
Carbon Steel, Alloy Steel & Stainless Steel |
|
6 |
Fin Thickness |
0.80 mm To 2.50 mm |
|
7 |
Fin Density |
79 FPM (2 FPI) to 276 FPM (7 FPI) |
|
8 |
Fin Height |
9.8 mm to 25.00 mm |
|
9 |
Bare Ends |
As per Client Requirement |
|
10 |
Manufacturing Capacity |
Studded Fin Tube
Resistance Welding of Studs on Bare Tubes is used to create the STUDDED Fin Tube.
The fins are made via electrical resistance welding of the Fin Material, which is essentially a stud or rod welded to the tube at the base.
The current is directed through the Tube and the studs’ bases. The studs are created in certain shapes to help with the welding process. The Stud is manually forced on the tube at the site of welding during the finning “welding” process, resulting in a very good mechanical bond. Fin Tubes of this sort are well-suited to high-pressure and high-temperature applications. The mechanical bond is quite strong, thus it is used in places where there will be a lot of mechanical pressure and stress during the process or cleaning, for example.
Fin Tubes are used in Finned Pipes, Air Coolers, Heat Exchangers, and other applications, and are favoured in industries such as Petrochemical Refineries, Power Plants, Chemical Industries, Steel Plants, and so on.
Properties of Studded Fine Tubes/ Studded Fin Pipe:-
- Manufacturing Process:- Continuously Welded Spiral Fin Tube
- Fin To Tube Bond:- Excellent
- Heat Transfer Efficiency:- Excellent
- Mechanical Resistance:- Excellent (Hence can be frequently cleaned with high pressure jets unlike other fin tubes. Thereby reducing down time and increasing overall life)
- Corrosion Protection:- Moderate
- Temperature Range:- Up to Maximum 500 Deg C
Manufacturing Range (Studded Fin Tube):-
|
Sr. No |
Particulars |
Range |
|
1 |
Base Tube Material |
Stainless Steel, Carbon Steel, Alloy Steel, Titanium , Copper, Duplex Stainless Steel, Inconel etc. (all material in the theoretical limit) |
|
2 |
Base Tube Outside Diameter |
60 mm to 200 mm |
|
3 |
Base Tube Thickness |
3 mm to 12.70mm Above |
|
4 |
Base Tube Length |
2000 mm Min To 15000 mm |
|
5 |
Stud Material |
Carbon Steel/Stainless Steel/Alloy Steel |
|
6 |
Stud Thickness |
6mm to 16mm |
|
7 |
Stud Density |
15.88mm or 63 Studs Per Plate Per Meter (Can Be Customized to Clients Requirements) |
|
8 |
Stud Height |
12.7mm to 63.5mm |
|
9 |
Bare Ends |
As per Client Requirement |
About
Xtror Engineering Pvt Ltd is a renowned engineering, manufacturing & service firm offering a wide-ranging portfolio of process equipment solutions to the Oil & Gas industry, Petrochemical industry, Processing Plant Industry, Power generation sectors and Heavy Industry that includes Air Cooled Heat Exchangers, and other custom Equipment.
Unit-I
Plot no-46 , Akshar industrial estate,Village–Chacharavadi Vasna, Ta-sanand, Dist–Ahmadabad PIN-382213 Gujarat, INDIA
+91 96625 19396
Unit-II
PO Box 128697,Musaffah Industrial Area,Abu Dhabi , UAE
+971-55-8821109
50-7949521
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