1. Progress at Protensive A brief update for the December 2004 PIN meeting Ian Henderson, R&D Director, Protensive

2. Progress at Protensive….. New equipment * 4 100mm SDRs rated to 200C, full vacuum to 4barg * 2 200mm SDRs rated to 220C, full vacuum to 4barg * 300mm High temperature unit 400C, full vacuum, with polymer handling capability ie cone discharge and gear pump * High stability gear pump units, extruder, mono type pump All computer interfaced,Oil baths with high output pumps

3. Progress at Protensive… High heat transfer on SDRs Overall heat transfer coefficient of 10kW/m2 K (1761 Btu/ft2h F) for low viscosity process fluids and water or glycol as heat/cool fluid. A 0.5m dia disc with delta T 20K will transfer 39kW. thanks to patented double spiral disc design, copper construction (with chrome plating for corrosion resistance)

4. Double Spiral Design * Rectangular channels; no fine clearances. * Low thermal and mechanical mass *Constant disc temperature *Flow independent of rotation * Chrome plated copper construction * No distortion under pressure/vac

5. Counter current gas operation on SDRs Progress at Protensive...

6. Finally... at last www.protensive.com Progress at Protensive...