1. Quincy Rotary Screw Vacuum Pump—QGVI Series Quincy Rotary Screw Vacuum Pump QGVI QUINCY COMPRESSOR – USA Q-TECH AIR SYSTEM TECHNOLOGY LTD

2. Quincy Rotary Screw Vacuum Pump—QGVI Series

3. QUINCY COMPRESSOR ： The leader in industrial vacuum technology ·The pioneer in rotary screw vacuum technology ·Advanced vacuum inlet modulation ·Ushered in the era of efficient & durable vacuum pumps for industrial applications Quincy Rotary Screw Vacuum Pump—QGVI Series

4. Various Vacuum Pump Technologies Available in the Present Day 1 、 Rotary Screw 2 、 Rotary Vane 3 、 Liquid Ring 4 、 Rotary Lobe Quincy Rotary Screw Vacuum Pump—QGVI Series

5. Rotary Screw Vacuum Pump Strengths: 1 、 Low loading on bearing, long equipment life 2 、 Efficient, high reliability 3 、 Minimum vibration, low maintenance costs 4 、 Low fluid top-up 5 、 Low fluid carryover 6 、 High temperature shutdown protection 7 、 Modulating inlet valve 8 、 Air cooled, water cooled options 9 、 Complete package, inclusive of controls Weaknesses: 1 、 Large footprint/weight 2 、 Sensitive to chemicals and particulates 3 、 Rough vacuum only （ 1- 0.001TORR ） Quincy Rotary Screw Vacuum Pump—QGVI Series InletCompressionDischarge

6. Rotary Vane Vacuum Pump Strengths: 1 、 Low initial investment 2 、 Low vibration, low sound 3 、 Fine vacuum possible 4 、 Small footprint/weight Weaknesses: 1 、 Short pump life, vanes have to be replaced every 3-5 years 2 、 No modulation 3 、 Higher fluid carryover 4 、 Sensitive to particulate and liquid contamination 5 、 Fluid top-up every 3 months 6 、 Not a complete package Quincy Rotary Screw Vacuum Pump—QGVI Series

7. Liquid Ring Strengths: 1 、 Low initial investment 2 、 Long equipment life 3 、 Not sensitive to particulates 4 、 Capable of handling moisture laden inlet streams 5 、 Able to utilise process fluids as liquid ring. Weaknesses: 1 、 Relatively low efficiency ， Sensitive to water temperature 2 、 No modulation 3 、 Utilise large quantities of water and water disposal is a problem 4 、 Not a complete package Quincy Rotary Screw Vacuum Pump—QGVI Series

8. Rotary Lobe Strengths: 1 、 Simple design 2 、 No oil in compression 3 、 Low initial investment (<15”HgV) 4 、 Suitable for lower vacuum (<15”HgV) Weaknesses: 1 、 Loud operation 2 、 No modulation ”HgV 3 、 Lower efficiency ， especially operating above 15”HgV Quincy Rotary Screw Vacuum Pump—QGVI Series

9. Unparalleled Vacuum Technology Industrial vacuum applications require rugged & efficient vacuum pumps that can operate in harsh enviroments. The reasons the QUINCY QGVI series is – for many - the vacuum pump of choice: 1 – Efficient. Comparing ACFM per input hp, QGVI outperforms all industry standards. 2 – Long life. QGVI are designed with compressor duty bearngs. This translates into extended product life and lower cost of ownership. 3– Controls. The modulating inlet valve provides a dual function: i) to protect site vacuum level ii) provide energy savings 4 – Complete Package. Each QGVI comes complete with full electricals, inlet filtration, base frame and controls. Just plug and play. Quincy Rotary Screw Vacuum Pump—QGVI Series

10. Inside the QGVI Inlet Filtration Fluid/Air Separation System Totally closed steel baseplate Gauge panel Coolers Electrical Enclosure Inlet/Outlet Flange Connections Flexible hose (fluid connection) Quincy Rotary Screw Vacuum Pump—QGVI Series

11. Inside the QGVI Wind Shield Modulating Inlet Valve Drive Motor “C” Flange Connection Asymmetrical Rotors Vibration Isolators Fluid Pre-filter Thermal Control Valve Fluid After- filter Flexible airend discharge piping Positive Flow Fluid Pump Quincy Rotary Screw Vacuum Pump—QGVI Series

12. All New Industrial Exterior Design Quincy Globalized Design Attractive Styling Totally enclosed baseplate and enclosure provide effective sound attenuation “U” shaped directional discharge vents lower sound caused by air discharge through vents. Easy-access panels facilitate maintenance Quincy Rotary Screw Vacuum Pump—QGVI Series

13. Gauge + Electronic Control System Both gauge and electronic control Discharge air temperature, fluid/air separator tank pressure, vacuum gauges Continuous run/auto-dual capacity control options High air temperature alarm Run hours meter On/off switch Siemens electronic components Quincy Rotary Screw Vacuum Pump—QGVI Series

14. Inlet Filter Imported from USA Large filtration surface area, low pressure drop Quincy Rotary Screw Vacuum Pump—QGVI Series

15. Modulating Inlet Valve Pneumatic Controlled. Unlike the butterfly valve, there is no rotation – only translation along a fixed axis. This is simpler and more reliable. Modulates according to load requirements and maintains vacuum within pre-set levels. Through modulation, vacuum pump operation is more energy efficient. Quincy Rotary Screw Vacuum Pump—QGVI Series

16. Drive System Direct drive motor and airend. “C” flange connection between motor and airend allows for permanent shaft alignment. Flexible coupling between motor and airend. KTR branded, imported from Germany. Vibration is reduced, reliable operation. Quincy Rotary Screw Vacuum Pump—QGVI Series

17. Dual Rotor Airend Quincy Compressor USA was the first to pioneer the use of the dual rotor vacuum pump. Mass production began in 1980. Rotary screw technology has relatively higher operating efficiency compared to other technology: rotary vane, liquid ring, etc Quincy’s unique axial flow inlet design enhances operating efficiency. Oversized rotors （ 204 ， 255 ， 321 ）， slow speed （ <3000rpm ）， long equipment life up to 400,000 hours. Quincy Rotary Screw Vacuum Pump—QGVI Series

18. Positive Flow Lubrication Designed with a positive displacement rotor-driven oil pump. Superior to a differential pressure lubrication system, adequate lubrication is certain even during unloading or starting. Longer airend life Designed with a two-stage fluid filtration system, fluid is first filtered before entering the pump. Fluid is filtered again after leaving the pump prior to entering the airend. This promises total protection for airend and pump. Quincy Rotary Screw Vacuum Pump—QGVI Series

19. Fluid Cooling System Special formulated synthetic fluid ， QUINSYN-PG ， with 8,000 hours life. Fluid cools the airend which in turn is cooled in the fluid cooler. Oversized coolers ensure sufficient redundancy in the system for reliable operation in ambient temperatures as high as 43 ℃. Thermal control valve regulates fluid temperature entering the airend. Water cooled/Air cooled options Piping utilizes SAE “O”-ring fittings for leak-free operations Quincy Rotary Screw Vacuum Pump—QGVI Series

20. Fluid/Air Separator Design is similar to compressor fluid/air separation system, for fluid carryover as low as 3PPM Tangential entry of air into the bottom half separator tank fitted with vanes for centrifugal separation. Moisture is also knocked out when air impacts the wall and vanes in the tank at speed. Separator element is imported from USA. Quincy Rotary Screw Vacuum Pump—QGVI Series

21. Quincy Rotary Screw Vacuum Pump QGVI Advanced rotary screw technology that is efficient and energy-saving. Optimized component design for reliability and long life. Complete controls system that self-regulates to maintain vacuum required. Easy to install, easy to maintain. Attractive Styling Quincy Rotary Screw Vacuum Pump—QGVI Series

22. Numerous Applications Electronics Semiconductor Printing/Pulp & Paper Pharmaceutical Woodworking Packaging Some of Our Customers TSMC (Taiwan Semiconductor Manufacturing Co) UMC (United Microelectronics Corporation) Quanta Computer ChipPac SIEMENS Philips Semiconductor Proconn Technology AND MANY MORE… Quincy Rotary Screw Vacuum Pump—QGVI Series

23. Thank You ！ Quincy Rotary Screw Vacuum Pump—QGVI Series QUINCY COMPRESSOR – USA Q-TECH AIR SYSTEM TECHNOLOGY LTD