Vertrel ® - Equipment Design The equipment alternatives Open Top machines Hermetic machines “Hybrid” solutions (pseudo-closed machines) Choice depends on: regulatory constraints company internal policy (ISO certification) characteristics of the cleaning process (type, number and specificity of the parts) batch or in-line production mode F-1 Service Chimie  : 5 place de l ’é glise, Saint Thibault des vignes  : (33)  : (33) :

Vertrel ® - Equipment Design Comparison of equipment types Open Top Hermetic Hybrid easy process integration almost no solvent losses minimized floor space eco-efficiency lower capital investment long-term cost of ownership THE COMPROMISE higher solvent consumption batch mode only atmospheric emissions more floor space needed short-term cost of ownership high capital investment F-2+ - Service Chimie  : 5 place de l ’é glise, Saint Thibault des vignes  : (33)  : (33) :

Vertrel ® - Equipment Design Key Equipment Enhancements for Open Top Systems (vs. typical CFC-113 and HCFC-141b equipment) Increased Freeboard height (recommended ratio = 1.8) Optimized cooling coil system (DuPont’s Triple Guard ® ) Robot vs. manual handling (maximum vertical speed = 0.01 m/s, and maximum horizontal speed = 0.03 m/s). Sliding lid, to avoid any piston effect Superheating chamber (10-15 ºC above boiling point) Optimized equipment design impacts the solvent consumption, NOT the cleaning and drying performance! F-3 Service Chimie  : 5 place de l ’é glise, Saint Thibault des vignes  : (33)  : (33) :

Vertrel ® - Equipment Design Solvent consumption in enhanced equipments With a higher freeboard and improved cooling system: With a freeboard ratio of 0.80 and coil temp. of 4°C: The consumption of HCFC-141b is 2,5 times higher vs The consumption of CFC-113 is 1,6 times higher vs With modified freeboard zone (4 and -30°C): The consumption of HCFC-141b is 9 times higher vs The consumption of CFC-113 is 6 times higher vs F-4 Service Chimie  : 5 place de l ’é glise, Saint Thibault des vignes  : (33)  : (33) :

Vertrel ® - Equipment Design Reference consumption data (indication) With a higher freeboard and improved cooling system: Machine (idle) with heat on & cooling system on (open top) < 15 g / m 2.h Machine (idle) with heat off & cooling system on (closed top) < 10 g / m 2.h Machine (work) with heat on & cooling system on (open top) g / m 2.h g / m 2.h (with robot) g / m 2.h (with robot & sliding lid) F-5 Service Chimie  : 5 place de l ’é glise, Saint Thibault des vignes  : (33)  : (33) :

Vertrel ® - Equipment Design Recommended freeboard and cooling system design l l Simpler (thus less expensive) design than the original Triple Guard ® System l l Dehumidifier coils restrain the entry of air moisture, thus the rapid freezing of the diffusion control coils l l Lower position of the dehumidifier coils and higher temperature lead to reduced turbulence, thus lower solvent losses l l Deflectors break the convection movement generated by the low temperature of the diffusion control coils F-6 Service Chimie  : 5 place de l ’é glise, Saint Thibault des vignes  : (33)  : (33) :

Vertrel ® - Equipment Design Standard two-sump system l l Gravity water separator is cooled for a better separation of solvent and water l l Gravity water separator has a capacity of 20% (30% for a dryer) of hourly distillation rate l l Use of a molecular sieve in the case of alcohol containing solvent l l Recommended molecular sieve size = 3Å F-7 Service Chimie  : 5 place de l ’é glise, Saint Thibault des vignes  : (33)  : (33) :

Vertrel ® - Equipment Design One-sump degreaser with integrated still l l Higher saturation capacity l l Reduced floor space l l For “inter-operational” cleaning tasks F-8 Service Chimie  : 5 place de l ’é glise, Saint Thibault des vignes  : (33)  : (33) :

Vertrel ® - Equipment Design Two-sump degreaser with superheating system F-9 Service Chimie  : 5 place de l ’é glise, Saint Thibault des vignes  : (33)  : (33) :

Vertrel ® - Equipment Design Two-sump co-solvent system F-10 Service Chimie  : 5 place de l ’é glise, Saint Thibault des vignes  : (33)  : (33) :

Vertrel ® - Equipment Design Co-solvent system with separate pre-cleaning sump F-11 Service Chimie  : 5 place de l ’é glise, Saint Thibault des vignes  : (33)  : (33) :

Vertrel ® - Equipment Design Co-solvent system with integrated pre-cleaning sump F-12 Service Chimie  : 5 place de l ’é glise, Saint Thibault des vignes  : (33)  : (33) :