1. Efficient Solutions For Water Supply Helix High-Pressure Vertical Multistage Pump

2. Division WaterTecNAMEX Multistage 21-09-20092 Wilo Helix Features – Overview Lifting Lugs Spacer coupling 7 ½ Hp Movable flanges New coupling guard IEC- 60 Hz motor Corrosion free base plate High efficient pump housing High efficiency hydraulics Pressure tappings Cartridge seal

3. Division WaterTecNAMEX Multistage 21-09-20093 FUTURE PRODUCT RANGE (see timeline) 10, 20, 30, 50, 70 100, 160, 230 USGPM 8 (Sleeve Dia) 60 Hz Material : stainless steel, cataphoresis coated C.I. Seals : EPDM, FKM (viton) 250, 375 PSI (model dependant) Lead Free (applied for NSF 61 status) 6 (Sleeve Dia)

4. Division WaterTecNAMEX Multistage 21-09-20094 Q2Q3Q4Q1Q2Q3 Helix V 160, 230 Q1Q2Q4Q3 Q4 Product Availability 2009 2010 HELIX SCHEDULE – North America 2011 Helix V 100 Helix V 70 V 10,20, 30, 50

5. Division WaterTecNAMEX Multistage 21-09-20095 PRODUCT RANGE Helix 100 vs. MVI 80 Helix 100 Nominal Flow – 100 USGPM Max Flow – 150 USGPM Max Hp – 30 Hp Max Head – 750 Max # Stages - 13 MVI 80 Nominal Flow – 80 USGPM Max Flow – 135 USGPM Max Hp – 10 Hp Max Head – 340 Max # Stages - 6

6. 6 Model Designation HELIX V 10002 / 2 – 3 / 16 / E Model Type Nominal Flow (100 USGPM) No Stages (02) No Trimmed Impellers (2 of 3) Pressure Rating (16 Bar) Elastomers (E = EPDM)

7. Division WaterTecNAMEX Multistage 21-09-20097 Details Hydraulics 2. HYDRAULICS

8. Division WaterTecNAMEX Multistage 21-09-20098 HYDRAULICS - Design High Efficiency Hydraulics 2D designImpeller blades Diffuser blades From 2D to 3D optimised complex shapes Click for Video

9. 9 Head Increased by 33% and Flow by 10% Higher Pressure per Stage The patent-pending 3-D design allows a higher pressure per stage for the same high efficient level Hygienic Care No dead spaces in which the fluid might be able to stagnate Smooth material surfaces and corrosion-resistant stainless steel prevent adhesion

10. Division WaterTecNAMEX Multistage 21-09-200910 HYDRAULICS – Best combination design & technology High Efficiency via 3D impeller/diffuser Design Helix 3D designs require very accurate stamping and laser welding technology Laser welding technology competition use spot welding Nominal Flow Rate ImpellerDiffuser 100 3D2D 160 3D 230 3D

11. Division WaterTecNAMEX Multistage 21-09-200911 Details lantern 2. LANTERN

12. Division WaterTecNAMEX Multistage 21-09-200912

13. Division WaterTecNAMEX Multistage 21-09-200913 Easy maintenance: Cartridge + Spacer Coupling Cartridge pre set No additional tools necessary Spacer coupling from 7 ½ Hp No motor removal required Maintenance time reduced by 70%

14. Division WaterTecNAMEX Multistage 21-09-200914 X-Seal - Wilo Cartridge for each pump In case of maintenance on the Helix pump we offer 2 alternatives: 2) Changing only the Mechanical seal (Grundfos cant do it) 1) Changing the complete cartridge (like Grundfos)

15. Division WaterTecNAMEX Multistage 21-09-200915 PUMP HOUSING – Connection Modules Module Features : Easy installation Competitor compliance Connection options 90 USGPM 160 USGPM 230 USGPM 2 4 Bolt 2 ½ 8 Bolt 3 8 Bolt 250 (300) # ANSI Flanges

16. Division WaterTecNAMEX Multistage 21-09-200916 Details pump housing 3. PUMP BODY

17. Division WaterTecNAMEX Multistage 21-09-200917 PUMP HOUSING – Details Pressure connection Suction and Discharge Loose flange : For easier installation & accessibility

18. Division WaterTecNAMEX Multistage 21-09-200918 PUMP HOUSING – Base plate New base plate : Steel + Zn coating Compliant with GF CR20-32-45 and Lowara SV33-46

19. Division WaterTecNAMEX Multistage 21-09-200919 Helix vs Grundfos

20. Division WaterTecNAMEX Multistage 21-09-200920 Performance – Comparison to Grundfos - Efficiency

21. Division WaterTecNAMEX Multistage 21-09-200921 Performance – Comparison to Grundfos – per stage

22. Division WaterTecNAMEX Multistage 21-09-200922 Performance – Comparison to Grundfos – NPSH Req

23. Division WaterTecNAMEX Multistage 21-09-200923 Thank you for your attention !