1. HCS Series Screw Compressor Packages

2. 2 HCS Series

3. 3 Heart of the System HCS Series: Single-stage dry screw compressor 5 Frames available Flow rates from 380 to 4700 CFM (650 to 7980 m3/hr) Pressures from 15 to 50 PSIG (1 to 3.5 BarG)

4. 4 HCS Series Operating Principle: Two meshing rotors positively displace air from inlet to outlet As the air is forced between the asymmetrical profile of the rotors, it is compressed to approximately 15 PSIG (1 BarG) The seal created between the rotors and casing allow back-pressure to build...up to 50 PSIG (3.5 BarG) Heart of the System

5. 5 HCS Series Design Features: Stainless Steel shaft seals on either side of the rotor keep air from leaking out of the compression chamber. Timing Gears ensure NO CONTACT between the two rotors. Rotors are coated with ULTRACOAT® –Provides corrosion resistance –Reduces fictional losses Heart of the System

6. 6 HCS Series Standard Scope of Supply Base Package: Module (HCS Series) Motor, IP55 enclosure (TEFC) Intake Filter / Silencer (high dust) Discharge silencer (HOD*) Safety Relief valve Basic instrumentation –Oil temp / pressure –Filter pressure drop Sound Enclosure (<85 dBA) –Designed for Indoor / Outdoor use –Hinged access doors IP55 (NEMA 4) Junction Box (no controls / no starter) Check Valve Expansion Joint * Pipeline-type aftercooler available as accessory

7. 7 HCS Series Controls Options Option 1 - Basic Control –S3 Controller (IP55 enclosure) –Blow-off valve  Electrically actuated butterfly valve  Open/close operation –Pressure switch Option 2 - Modulating Bleed Control –S3 Controller (IP55 enclosure) –Blow-off valve  Electrically actuated butterfly valve  Modulating (4-20ma signal) * Starters are NOT included in the basic pricing

8. 8 HCS Series Control Option 1 Basic Control Intake Filter Blower Butterfly Valve To Atmosphere Discharge Silencer Customer Connection Blower Enclosure Pressure Switch To Process Time High Pressure SP X Stop Valve Open Upset Condition “Normal” Operation

9. 9 HCS Series Control Option 2 Basic Control Intake Filter Blower Modulating Butterfly Valve To Atmosphere Discharge Silencer Customer Connection Blower Enclosure Pressure Transducer To Process Time High Pressure SP X Stop Valve Open Upset Condition “Normal” Operation T

10. 10 HCS Series Optional Accessories Accessories Designed and Priced per Application: Pipeline type air cooler (air to water) Finned-tube type air cooler (air to air) Star-Delta starters Safety relief valves Special motor ratings, enclosure types Custom sound enclosures for low sound levels Special mounting configurations to fit Customer Requirements

11. 11 HCS Series Typical Package (less enclosure) Inlet filter/silencer Flanged Discharge Connection Safety Relief Valve Discharge Silencer Air Cooled Oil Cooler Compressor Module TEFC Motor

12. 12 HCS Series Typical Package (less enclosure) Blow-off Valve (electrical actuated) Discharge Silencer Vent Pipe (to atmosphere) Resilient Coupling (with guard)

13. Other Products

14. 14 HCS Series Technology Summary