Heavy-wall seamless stainless tubes used for machining.
Application
nuclear industry
chemical and petrochemical industry
automotive industry
paper converting industry
food processing industry
Instrumentation tubes
Destination
Extra thin-wall stainless tubes with strict requirements to deviations in diameter and wall thickness.
Application
aerospace industry
machine building
high pressure equipment
automatic and hydraulic systems
machine tool manufacturing
General tubes and pipes
Destination
Seamless stainless tubes and pipes for pipelines.
Application
chemical industry
pipelines and constructions for variuos services
tubes and pipes for processing industry
Heat-exchanger tubing segment
Destination
Heat-exchanger equipment, pipelines and pipeline components.
Application
chemical Industry
petrochemical industry
HVAC (Heating Ventilation Air Conditioning) Refrigeration
food and beverages
power generation
An Outlook of Key Application Areas
Fuel Processing Reviving global economies are expected to give the necessary impetus to demand in this industry.
HVAC and Refrigeration With atmospheric temperature levels rising, demand for refrigeration products is growing, which translates to greater demand for shell and tube exchangers.
Food and Beverage Demand increases primarily due to the consistent growth in the industry.
Power Generation Sales will be positively impacted due to growing investments in power generation and nuclear power plants in Europe.
Shell & Tube HEX
Shell and Tube Heat Exchangers are defined as heat exchangers that can transfer hot fluid to a cooler fluid. One fluid passes through a set of tubes while the other fluid passes through the shell that encloses the tubes. Shell and Tube Heat Exchangers find applications in processes involving high temperature and pressure, and in cases where the fluid contains particles.
U-Tube Heat Exchangers
U-Tube heat exchanger comprises of a U shaped tube fixed by flow baffles or tube supports and placed in a shell to control the fluid present in the exterior of tube assembly. The fluid is guided into the tubes by using a head assembly, which is fixed to the shell by means of bolts.
Straight Tube Heat Exchangers
Straight tube heat exchangers are used in applications where the fluids have high fouling properties. They are also used in applications where there is high occurrence of temperature cross. The straight tube structure facilitates easy cleaning of the tubes. However owing to their design, straight tube heat exchangers are not effective where the temperature difference between the fluids is high.
Stainless steel
Is useful in bad water environment caused by pollution or from the chemicals used to counter it, can also be used to overcome the corrosive nature of some synthetic oils and refrigerants. They are ideal for applications where deionized water or corrosive fluids are used, and a high efficiency, compact unit is required. The heat exchanger has a superior construction with 316L stainless steel tubing expanded into copper cooling fins.
Alloys
Materials with more oxidation and corrosion resistance and tensile/creep strength at higher temperatures are required. Existing alloy candidates are much too costly, so lower cost alternatives are being sought. ORNL is working with microturbine manufacturers and material suppliers to develop advanced alloy, high temperature recuperators.
From 2005 Centravis is a volume leader in seamless stainless tubing for heat exchangers worldwide.
