1. CGThermal Umax® Advanced Ceramic Shell and Tube Heat Exchanger
Ceramic. Graphite . Heat Exchangers. Process Equipment

2. CGTherm al Umax® Advanced Ceramic Shell and Tube Heat Exchanger
CG Thermal’s Principal Design Engineer and partner, B. David Hudson, invented this technology in 1984, which won the 1988 Research and Development Magazine’s R&D 100 award, and that same year won Chemical Processing’s award as a major contribution toward more efficient and effective Plant Operations.
Beryllium Processing
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Ceramic. Graphite . Heat Exchangers. Process Equipment

3. CGThermal Design Benefits
Can operate at higher velocities with highly efficient heat transfer reducing required surface area
Tubes have exceptional high hardness, strength, and thermal conductivity and are immune to erosion and corrosion
Unconditional 2-year warranty against corrosion and erosion
Each tube can be individually replaced without disturbing the shell side
Easily and quickly field serviceable and repairable
Carbon steel shell with SST and lined options
Multi-pass construction available
ASME Code design
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Ceramic. Graphite . Heat Exchangers. Process Equipment

4. Defining the Structure and properties of Umax® Advanced Ceramic.
Umax® Advanced Ceramic is an ALPHA SINTERED form of SiC.
Single phase - Less than 0.2% free Si. Compared to reaction bonded which can contain 10% and higher.
Non-Porous- No need for fillers, like resins, glass, tungsten, etc.
Each tube is individually tested to over 2,000 psig.
Pressureless Sintered- No reaction bonding agent required. Holds high dimensional machining tolerances after sintering.
Self Bonding Grain Structure- Fine grains are sintered together at temperatures above 4,000 Deg F. Extremely hard.
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5. Universally corrosion resistant HR/Nitric and other acid environments throughout the units pressure and temperature ratings.
Can even reliably perform in air temperatures in excess of 3,450 Deg F.
Unconditional universal corrosion guarantee.
For all practical purposes it is 100% erosion resistant
50% harder than WC, 10x harder than stainless steel.
Excellent fouling resistance.
Can be hydro-blasted at high pressure without damage.
Exceptional Thermal Properties
High thermal conductivity, low thermal expansion rate, and strength properties combine for excellent resistance to thermal shock.
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Ceramic. Graphite . Heat Exchangers. Process Equipment

6. CGThermal Alpha Sintered Umax Tubing – Alpha Sintered Silicon Carbide
No Fillers
No Free Silicon
No trace Contaminations
Sintered
Over 98%
Theoretical Density
50% Harder than WC
HF, BR2, HNO3, Mixed acids, H2SO4 and High fouling applications
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Ceramic. Graphite . Heat Exchangers. Process Equipment

7. CGThermal Properties Comparison of Common CPI Materials
Umax Advanced Ceramic
Impervious Graphite
Tantalum
304SS
Borosilicate Glass
Specific Gravity
3.1
1.9
16.6
8.0
2.2
Flexural (psi)
60,000
6,380
50,750
75,000
1,000
Compressive (psi)
560,000
11,310 NA
150,000
Mod. Elast. (x 106 psi) 59
2.3 27 28 98
CTE
(10-6 in/in f)
1.04
5.8
9.3
1.8
Conductivity (btu/ft-hr F)
72.6 58 32
9.1
0.67
CGThermal
Ceramic. Graphite . Heat Exchangers. Process Equipment

8. UNCONDITIONAL 2 YEAR GUARANTEE AGAINST CORROSION AND EROSION
Umax® - The Material
Replaces graphite, glass, reactive metal, Fluoropolymer, and nickel alloy material of construction.
UNCONDITIONAL 2 YEAR GUARANTEE AGAINST CORROSION AND EROSION

9. Tube to Tubesheet Sealing
Tubes can expand independently of tubesheet.
Easy tube replacement if required.
Back-up rings create captured sealing mechanism.
CGThermal
Ceramic. Graphite . Heat Exchangers. Process Equipment

10. Tube to Tubesheet Sealing
Each tube is sealed individually with a tube nut allowing independent tube movement in response to system stresses.
CGThermal
Ceramic. Graphite . Heat Exchangers. Process Equipment

11. CGThermal Field Servicable
Clean tubes by removing clamp plate. Bolting ring remains in place and shell side is not disturbed
Tube removal: If ever required,
individual tubes can be replaced in the field simply and economically without the need for special tools and/or highly specialized welding procedures.
CGThermal
Ceramic. Graphite . Heat Exchangers. Process Equipment

12. CGThermal Unit Design Clamp Plate Bolting TubesheetRing
Springs for thermal expansion
(Typ. Both Ends)
CGThermal
Ceramic. Graphite . Heat Exchangers. Process Equipment

13. CGThermal ASSEMBLY PROCESS
Carbon steel shell typical (lined, SST, and other optional
FRP or carbon steel baffles typical (other options upon request)
Tubes inserted into baffle cage assembly in shell.
CGThermal
Ceramic. Graphite . Heat Exchangers. Process Equipment

14. CGThermal ASSEMBLY PROCESS Installation of back-up ring and O-rings:
Interference fit of back-up rings encapsulates o-rings
CGThermal
Ceramic. Graphite . Heat Exchangers. Process Equipment

15. CGThermal ASSEMBLY PROCESS
Tube nuts installed: Tube nut individually seals each tube to the tubesheet.
Bolting ring installed:
Sealing shell from tube side. 2-pass design shown
CGThermal
Ceramic. Graphite . Heat Exchangers. Process Equipment

16. CGThermal TYPICAL PROCESS HEAD DESIGNS
Ceramic. Graphite . Heat Exchangers. Process Equipment

17. CGThermal Final assembly and packaging
Ceramic. Graphite . Heat Exchangers. Process Equipment

18. CGThermal Design Benefits
Can operate at higher velocities with highly efficient heat transfer reducing required surface area
Tubes have exceptional high hardness, strength, and thermal conductivity and are immune to erosion and corrosion
Unconditional 2-year warranty against corrosion and erosion
Each tube can be individually replaced without disturbing the shell side
Easily and quickly field serviceable and repairable
Carbon steel shell with SST and lined options
Multi-pass construction available
ASME Code design
CGThermal
Ceramic. Graphite . Heat Exchangers. Process Equipment

19. CGThermal Umax® Advanced Ceramic Shell and Tube Heat Exchanger
Questions? Information?
Thermal sizing?
CGThermal
Ceramic. Graphite . Heat Exchangers. Process Equipment