Integrated Engineers & Contractors

Rai, Sonipat, Haryana

Brazed heat exchangers are well suited in applications which put high demand on cleanliness, applications where e.g. Ammonia or LiBr are used or application where copper or nickel contamination is not accepted AlfaNova is made for high thermal efficiency and strength as well as good resistance, pressure and thermal fatigue, Temperature range: 50oC to 22oC; pressure in excess of 25 bar.

Stainless steel plate heat exchanger Designed for refrigeration and AC duties, BHE's handle HCFC, HFC, HC and CO2 refrigerants. As dry expansion evaporator, they feature integrated flow equalization for maximum cooling performance. Three models are equipped with double refrigerant circuits. Temperature range - 100oC to 200oC; pressure in excess of 40 bar.

A heat exchanger is a device used to transfer heat from one fluid to another while preventing the two from intermingling. The three main types are shell and tube heat exchangers, air-cooled finned tube heat exchangers and plate heat exchangers. Generally, there is a metal wall partitioned between the two fluids that acts as a conductor. A hot solution flowing on one side of the barrier transfers its heat to a cooler solution flowing on the other side. Thermal energy only flows from the hotter to the cooler in an attempt to reach equilibrium. The surface area of a heat exchanger affects its speed and efficiency; the larger a heat exchanger's surface area, the faster and more efficient the heat transfer.

Heat exchangers are typically constructed of steel, titanium, copper, bronze, stainless steel, aluminum or cast iron. One of the biggest problems heat exchanger manufactures have to prevent is corrosion, which common due to the constant flowing of liquid. Unfortunately, this is very difficult to avoid. To help prevent this, tubing must be resistant to general corrosion, pitting, stress-corrosion cracking (SCC), selective leaching and oxygen cell attack in service. Some heat exchanger designs use fins to provide greater thermal conductivity, which also helps.

Weather in commercial or industrial use, heat exchangers are vital as energy and money saving devices since most mechanical, chemical and energy systems requires heat transferal of some sort.

Custom heat exchangers perform a crucial role in the design, operation and maintenance of heating and air-conditioning systems, vehicle design, power plants, refrigeration, chemical and industrial engineering systems. They are also important in settings such as food processing, industrial engineering processes, pharmaceutical pulp and paper and the steel industry. All power generation industries need them. Other industries that use heat exchangers include aerospace, chemical, marine, semiconductor, petrochemical, electronic, automotive, water treatment facilities and textiles. Heat exchangers are useful to almost everyone.

IEC Make Shell & Tube Heat Exchangers remains the industry standard in ultimate value and long-term reliability. This proven fixed & floating tube sheet 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.

Sizes: 3" to 30" diameter; 12" to 192" length, Shells: Carbon Steel or 304 Stainless Steel, Tubes: 1/4", 3/8", 5/8", 3/4" & 1" diameter tubes available in Copper, Admiralty, 90/10 Cu Ni or 304 S/S. Straight tube or U-Tube configurations, Baffles: Precision punched Carbon Steel, Brass or 304 S/S, Heads: Cast heads available in iron, 304 S/S or bronze; Fabricated heads available in Steel, 304 S/S or 90/10 Cu-Ni. Flow: Available in 1-pass, 2-pass and 4-pass designs. Codes: Commercial Standard (non-code) ASME-TEMA-C, IS-2825.

The company is one of the prime Alfa Laval Plate Heat Exchanger Manufacturers, Importers and Suppliers, located in New Delhi. Our Alfa Laval Plate Heat Exchanger is offered in more than twenty different models like Alfa Laval Fusion-bonded Plate Heat Exchanger, Alfa Laval Gasketed Heat Exchangers, etc. The Alfa Laval Plate Heat Exchanger is availed at reasonable prices.

Available in more than 20 models, brazed Plate Heat exchangers (BHE's) have stainless steel plates, copper brazed for high thermal efficiency and strength, Designed for refrigeration and AC duties, BHE's handle HCFC, HFC, HC and CO2 refrigerants. As dry expansion evaporator, they feature integrated flow equalization for maximum cooling performance. Three models are equipped with double refrigerant circuits. Temperature range - 100oC to 200oC; pressure in excess of 40 bar.

Benefits:

• Extremely compact, low weight, easy to install
• Low refrigerant charge
• Even flow distribution with stable superheat capability
• Safe oil Scatter, even with low loads
• Safe capacity control due to double refrigerant circuits
• Floating condensation temperature with flooded evaporations systems
• Can be optimized with air liquid coolers in indirect cooling systems.

Applications:

Indirect System:

• Water-glycol cooled condensers
• DX evaporators, single and double circuits
• Flooded evaporators

Indirect and direct System:

• Cascade evaporator/condensers
• Condensate coolers
• Desuperheater for heat recovery
• Oil coolers

Alfa Laval Fusion-bonded Plate Heat Exchanger:
Available in 5 sizes and various pressure levels. AlfaNova is a completely new type of plate heat exchanger, the world's first plate heat exchanger, made of 100% stainless steel. It is based on Alfa Laval's new revolutionary techonology. AlfaFusion, the art of joining stainless steel components together. AlfaNova heat exchanger are well suited in applications which put high demand on cleanliness, applications where e.g. Ammonia or LiBr are used or application where copper or nickel contamination is not accepted AlfaNova is made for high thermal efficiency and strength as well as good resistance, pressure and thermal fatigue, Temperature range: 50oC to 22oC; pressure in excess of 25 bar.

Benefits:

• Same benefits as the brazed heat exchangers with some additions e.g:
• 100% stainless steel construction ensures unbeatable durability
• High corrosion resistance
• Maximum hygiene

Applications:

Indirect and/or direct Systems Within Ammonia Refrigeration:

• Oil cooler
• Condenser
• Evaporator
• Economizer
• Desuperheater
• Absorption systems (LiBr)

Within Cooling:

• Process Cooling
• Hydraulic oil Cooling
• Laser cooling
• Hygienic/Sanitary demands
• Water/Water cooling

Alfa Laval Gasketed Heat Exchangers:
Designed to allow full optimization with the chiller, the Gasketed Plate Heat Exchanger (GPHE) range includes versions to cope with pure, corrosive, foulant and hygienic fluids in combination with chiller evaporators and condensers. Plate designs prevent fouling through even flow distribution, high turbulence and no stagnant areas. GPHE's are available in stainless steel, titanium and high nickel alloy materials. Operating pressure up to 25 bar, operating temperature up to 180oC; flow rates up to 3, 000 m3/h.

Benefits:

• Compact, low weight
• Efficient with close temperature approach and small loss of chiller efficiency.
• Low fouling with raw water, no corrosion
• Easy to open with advanced bolt closing system
• Long-life, glue-free gaskets means easy on-site replacement
• Fatigue resistant
• No risk of inter leakage

Applications:

Indirect System:

• Intercoolers, isolating chiller condensers for corrosion and fouling resistance
• Intercoolers in free cooling or chiller bypass systems with air coolers, cooling towers ans sea, river or lake water as heat sink
• Interchangers in reversed AC/heat pump application
• District cooling distribution interchangers
• Pressure interceptors for tall building

Alfa Laval Semi-Welded Heat Exchangers:
The Semi-Welded Plate Heat Exchanger (SWPHE) is available in six models. The refrigerant flows in laser-welded, sealed plate channels and the brine in gasketed channels. The flexible design copes with fatigue stresses and ice formation. The SWPHE handles most refrigerants on the welded side and is particularly suitable for ammonia duties. Standard plate materials are stainless steels and titanium. Temperature range - 45oC to 130oC; pressure upto 25 bar.

Benefits:

• Low charge, low weight
• Easy to modify heat transfer area for altered capacities, refrigerants
• Easy inspection and cleaning of the liquid side.
• Reliable, with long service life for heavy duties
• Plate materials for corrosive fluids, cooling water and brines
• Condender/desuperheater or condenser/oil cooler combined in single unit
• Floating condensation with flooded evaporation
• Can be optimized with air liquid coolers in indirect cooling systems

Applications:
Indirect systems:

• Water-glycol cooled condenser
• DX evaporators, single and double circuits
• Flooded evaporators

Indirect and direct Systems:

• Desuperheater for heat recovery
• Water-cooled oil coolers