Welltech Cooling Systems

A heat exchanger is a piece of equipment built for efficient heat transfer from one medium to another. The media may be separated by a solid wall, so that they never mix, or they may be in direct contact.
TYPE: Fixed Tube Sheet, Removable tube Bundle, U-Tube, Coil in Tank, double Pipe
Capacity Range: As per Customer requirement
Shell Diameter: 4″ to 125″
Tube Length: 3′ to 40′
Tubes: Plain, Integrally Finned or U-Tube
No of Passes: Single, Double & Four passes
M.O.C. Tubes: Carbon Steel, Stainless Steel, Copper, Adm. Brass, Aluminium, Titanium, Tantalum, Hastolloy, Aluminium Bronze, Monel, Duplex, Cupronickle
Shell: Carbon Steel, Stainless Steel, Copper, Monel. Brass, Aluminium
Channels: Carbon Steel, Stainless Steel, Gun Metal, Cast Iron, Brass, Cast Aluminium, Alloy

 

The classic example of a heat exchanger is found in an internal combustion engine in which a circulating fluid known as engine coolant flows through radiator coils and air flows past the coils, which cools the coolant and heats the incoming air.

 

A finned-tube (extended-surface) heat exchanger with hot fluids inside the tubes, and cooling air that is fan-blown (forced draft) or fan-pulled (induced draft) across the tube bank.

We manufactured from 3/8″, 1/2″ and 5/8″ OD Copper Tubes or Stainless Steel Tubes having Aluminium Fins.

Standard Fan Coil is designed for air flow capacity of 400 CFM to 800 CFM for horizontal air discharge and for vertical air discharge. They are available with housing in sight or in wall mounted or ceiling mounted versions.

Capacity: Material of construction can be designed as per customer requirement.

Fin Materials – Aluminium, Copper, Stainless Steel, CRCA (Cold Rolled Close Annealed Sheet Steel), and hot dip Galvanized CRCA.

Tube Materials – Copper, Stainless Steel, Cupronickel, Carbon Steel.

 

We are leading manufacture and suppliers of Plate Heat Exchangers applying in industries of heat supply, air conditioning, chemicals, machinery, metallurgy, steel, medicines, food, oil field, shipbuilding, light industry and so on.

A plate type heat exchanger is a type of heat exchanger that uses metal plates to transfer heat between two fluids. This has a major advantage over a conventional heat exchanger in that the fluids are exposed to a much larger surface area because the fluids spread out over the plates. This facilitates the transfer of heat, and greatly increases the speed of the temperature change. It is not as common to see plate heat exchangers because they need well-sealed gaskets to prevent the fluids from escaping, although modern manufacturing processes have made them feasible.

Oil Coolers with Inbuilt Fan. Oil Coolers are highly efficient and ensure effective heat transfer. Our Oil Coolers can be customized as per requirement. The Finned Tube Oil Coolers with Fans are used where air is used as cooling medium. Oil coolers find application in Diesel Engines, Marine, Plastic Processing Machinery, Die Casting Machines, Hydraulic Power Packs and in many other Industrial applications.

Oil cooler/Inter Coolers / After Coolers widely used to decrease the temperature of the compressed air to a specific processed area. The after coolers and inter coolers are checked and tested in different working conditions to optimize the cooling effect with cold water. These can also be customized as per the exact needs and demands of the clients or their applications.

TYPE: Fixed Tube Sheet, Removable tube Bundle, U-Tube, Coil in Tank, double Pipe
Capacity Range: As per Customer requirement
Shell Diameter: 4″ to 125″
Tube Length: 3′ to 40′
Tube Diameters: 3/8″, ½”, 5/8″, 7/8″, and 1″
Tubes: Plain, Integrally Finned or U-Tube
No of Passes: Single, Double & Four passes
M.O.C. Tubes: Carbon Steel, Stainless Steel, Copper, Adm. Brass, Aluminium, Titanium, Tantalum, Hastolloy, Aluminium Bronze, Monel, Duplex, Cupronickle
Shell: Carbon Steel, Stainless Steel, Copper, Monel. Brass, Aluminium
Channels: Carbon Steel, Stainless Steel, Gun Metal, Cast Iron, Brass, Cast Aluminium, Alloy

 

A marine heat exchanger provides the cooling for a marine engine. In basic form it is a bundle of tubes where two cooling circuits meet and exchange the heat. This could be in the cooling circuit of an engine (marine heat exchanger) the oil circuit (oil cooler) or intake air (inter cooler).

They are available in tubular form, or with an integral header tank, and models are available to suit engines of various outputs.

In Engine you have in your boat, we can supply you with a heat exchanger to suit … from the smallest petrol or diesel engine to large V8 petrol and medium-range diesels. Vertical Mounting with Integral Header Tank Horizontal mounting with Integral Header Tank we can manufacture you a unit to suit, using modular construction from standard components.

Design: AS PER ASME Section VIII Div. 1, TEMA RCB, IS 2825 & IS 4503.
Capacity: As per Customer Requirements/standard Design

 

Material of Construction:
Size ranging from 3” to 100” in diameter & 40’ (Feet) in length.

Shell: 90/10 Cupronickel, 70/30 Cupronickel, Carbon steel, Stainless Steel,	Tube sheet: 90/10Cupronickel, 70/30 Cupronickel, Naval Brass, Carbon steel, Stainless Steel,
Tubes: 90/10 Cupronickel, 70/30 Cupronickel, Copper, Stainless Steel,  Al. Brass, & as per customer requirement.	Channels/Headers/End covers: Cupronickel, Nickel Aluminum Bronze, Gunmetal-Naval Grade, Graded  Cast iron, Carbon steel, Stainless Steel,

We have been manufacturing direct replacement and new application tube bundles for Shell & Tube Heat Exchangers. We can replacement any existing Bundle to include dimensions, materials and performance.
Material of construction can be designed as per customer requirement or individual Design.

 

Most bundles tend to be built with copper tubes and steel tube sheets  we can offer a wide variety of Materials: Carbon steel, stainless steel, Copper, admiralty brass and many others.

 

A finned-tube (extended-surface) heat exchanger with hot fluids inside the tubes, and cooling air that is fan-blown (forced draft) or fan-pulled (induced draft) across the tube bank.

We manufactured from 3/8″, 1/2″ and 5/8″ OD Copper Tubes or Stainless Steel Tubes having Aluminium Fins. Standard Fan Coil is designed for air flow capacity of 400 CFM to 800 CFM for horizontal air discharge and for vertical air discharge. They are available with housing in sight or in wall mounted or ceiling mounted versions.

Capacity:  Material of construction can be designed as per customer requirement.
Fin Materials – Aluminium, Copper, Stainless Steel, CRCA (Cold Rolled Close Annealed Sheet Steel), and hot dip Galvanized CRCA.
Tube Materials – Copper, Stainless Steel, Cupronickel, Carbon Steel.

 

 

Refrigerant condenser coils are suitable for use in a wide variety of HVAC air conditioning (condensing) and heat recovery applications. Standard and custom designs are available for new and retrofit installations. This proprietary program allows the user to vary coil circuiting (feeds and passes), fin spacing, and materials of construction to reach the optimum coil selection for any refrigerant and set of operating conditions in ways just not possible with other manufacturers’ software. Copper, cupro-nickel, aluminum, and stainless steel tubes and fins are available for condenser coils to match the operating conditions and level of corrosion resistance needed for your application. Custom replacement coils are a Colmac specialty. Our applications engineers will assist you in matching existing coil construction and dimensions to create the “perfect fit” for your replacement coil project.

 

 

Tubes and Fins: Copper, cupro-nickel, aluminum, and stainless steel
Tube Diameters: 3/8″, ½”, 5/8″, 7/8″, and 1″
Casings: Aluminum, galvanized steel, and stainless steel.

 

 

 

The strip material is subjected to controlled deformation under tension giving the optimum contact pressure of the foot of the fin onto the base tube thus maximising the heat transfer properties.The foot of the fin considerably enhances the corrosion protection of the base tube.

 

MAXIMUM WORKING TEMPERATURE: 150°C
FIN MATERIALS: ALUMINIUM, COPPER
TUBE MATERIALS:  ANY THEORETICAL LIMIT

 

 

Manufactured in the same way as the ‘L’ finned tube type except that the fin foot is overlapped to completely enclose the base tube thereby giving excellent corrosion resistance. This type of finned tube is often used as an alternative to the more expensive extruded type fin in corrosive environments.

 

MAXIMUM WORKING TEMPERATURE: 180°C
FIN MATERIALS: ALUMINIUM, COPPER
TUBE MATERIALS:  ANY THEORETICAL LIMIT

 

 

Manufactured exactly as the ‘L’ finned tube except that the base tube is knurled before application of the fin foot. After application, the fin foot is knurled into the corresponding knurling on the base tube thereby enhancing the bond between the fin and tube, resulting in improved heat transfer characteristics.

 

MAXIMUM WORKING TEMPERATURE: 260°C
FIN MATERIALS: ALUMINIUM, COPPER
TUBE MATERIALS:  ANY THEORETICAL LIMIT

G’ EMBEDDED FINNED TUBE:

 

The fin strip is wound into a machined groove and securely locked into place by back filling with base tube material. This ensures that maximum heat transfer is maintained at high tube metal temperatures.

 

MAXIMUM WORKING TEMPERATURE: 450°C
FIN MATERIALS: ALUMINIUM, COPPER, CARBON STEEL
TUBE MATERIALS:  ANY THEORETICAL LIMIT

 

 

This fin type is formed from a bi-metallic tube consisting of an aluminium outer tube and an inner tube of almost any material. The fin is formed by rolling material from the outside of the exterior
Tube to give an integral fin with excellent heat transfer properties and longevity. Extruded fin offers excellent corrosion protection of the base tube.

 

MAXIMUM WORKING TEMPERATURE: 285°C
FIN MATERIALS: ALUMINIUM,.
TUBE MATERIALS:  ANY THEORETICAL LIMIT

 

Welltech make engineers solutions which unique technology of manufacture, designing and commissioning of all kind of non-traditional cooling tower since 2010. Our range of manufacturing includes all type of Atmospheric Natural Draft, induced draft in cross-flow and counter-flow design in R.C.C., F.R.P. Cooling Tower as well as Wooden Cooling Towers. moreover manufacturing, our technocrats and engineers solutions has a long experience in erection, modification, inspection and renovation all type of cooling tower of any make. After modification, the same cooling tower can save a large amount of power because of induction of latest techniques and developments in this field. Infect, ours is original venture in the country for modification and renovation of old and idle cooling tower with money back guarantee for increasing efficiency to the maximum level.

 

 

Assisted by a fine team of research and development engineers, production engineers, field engineers, management engineers, service engineers. The team compliments each other to bring out the best technical product in the market.

Cooling Towers:

Heat exchangers: Cleaning, Re-tubing, Re-manufacturing.

We also introduce ourselves as leading Supplyers of descaling chemicals de-scale DG set, furnace Waters, Air Compressors, Boilers, Heat Exchangers, Condensers type of equipment without harming the parent material. Our products have been specially developed to remove any type of “Hard Scale or Soft Scale.