Pressure boosting Single pumps

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1 Series description Wilo-Economy MHI Design Non-self-priming multistage pump Application Water supply and Commerce and industry Cooling water circulation systems Washing and sprinkling systems Type key Example: MHI MHI -1/E/ Multistage horizontal high-pressure centrifugal pump Volume flow in m 3 /h Number of impellers 1 Material 1 = (AISI 34) = (AISI 316L) E Gasket type E = EPDM V = FKM (Viton) 1 1 = 1~ (single-phase current) 3 = 3~ (three-phase current) 3 Connection voltage in V 5 Frequency in Hz Number of poles Technical data Mains connection 1~3 V / 5 Hz or ly V / 6 Hz Mains connection 3~3V / 5 Hz ( ) or ly V / 6 Hz ( ), 4 V / 5 Hz (Y) or ly 38 V / 6 Hz (Y) Fluid temperature -15 to +11 C Max. operating pressure 1 bar Max. inlet pressure 6 bar Protection class IP 54 Nominal diameters of pipe connections Rp 1, Rp 1 ¼ or Rp 1 ½, depending on type Materials Impellers, stage chambers and pump housing stainless steel 1.431/ Shaft stainless steel Gasket EPDM (EP 851)/FKM (Viton) Mechanical seal B-carbon/tungsten carbide Bearing tungsten carbide Pump base aluminium Scope of delivery Pump Installation and operating instructions Special features/product benefits All parts that come in contact with the fluid are made of stainless steel (AISI 34) or (AISI 316 L) Compact design All relevant components are KTW- and WRAS-certified Equipment/function Stainless steel pump in monobloc design Threaded connection Single-phase or three-phase motor Single-phase AC motor with integrated thermal motor protection Wilo Building Services catalogue 5 Hz Water supply Edition 11/1 Subject to change without prior notice 19

2 Version overview Wilo-Economy MHI Materials Parts in contact with fluid in (AISI 34) Parts in contact with fluid in (AISI 316L) Seal version Seal Hydraulic connection Threaded connection Oval flange Round flange Victaulic quick coupling Motor version Individual motors Wilo-Economy MHI /4/8/16 (only versions../4../8..) FKM (Viton) 1~3 V, 5 Hz (up to P = 1.5 kw) 3~4 V, 5 Hz (up to P =4 kw for 3/4V; from P =5.5 kw and higher only for 4 V ) 3~5 V, 5 Hz Individual motors for special voltages, 5 Hz or 6 Hz Protection class IP 54 Explosion protection Motors with PTC thermistors Motors with UL certificates Motors with CSA certificates Thermal motor protection switch (EM version) (only 1~motors) Speed can be controlled via external FC Integrated frequency converter Painting Individual painting Mechanical seal Tungsten carbide/carbon SiC/carbon SIC/SIC Potable water approvals KTW WRAS = available, - = not available (only for EPDM version) (only for EPDM version) 13 Wilo Building Services catalogue 5 Hz Water supply Edition 11/1 Subject to change without prior notice

3 Technical data Wilo-Economy MHI Wilo-Economy MHI /4/8/ Approved fluids Potable water, heating water, process water Condensate Water/glycol mixtures (max. 4 %; with admixtures exceeding 1 %, the pumping data must be checked) Other low viscous fluids (without abrasive or long-fibre constituents, provided they do not corrode the materials used) Power Max. volume flow 5. m 3 /h 8. m 3 /h 13. m 3 /h 5. m 3 /h Max. delivery head 7 m 68 m 67 m 47 m Fluid temperature C C C C Max. ambient temperature 4 C 4 C 4 C 4 C Operating pressure 1 bar 1 bar 1 bar 1 bar Max. inlet pressure 6 bar 6 bar 6 bar 6 bar Nominal speed 95 rpm 95 rpm 95 rpm 95 rpm Motor Mains connection 1~ (permitted voltage tolerance +/- 1%) Mains connection 3~ (permitted voltage tolerance +/- 1%) 3 V, 5 Hz or V, 6 Hz 3 V, 5 Hz or V, 6 Hz 4 V, 5 Hz Y or 38 V, 6 Hz Y Insulation class F F F F Radio shielding degree EN EN EN EN Protection class IP 54 IP 54 IP 54 IP 54 Connections Nominal diameter of pipe connections on suction side 1 1¼ 1½ 1½ Nominal diameter of pipe connections on pressure side 1 1 1¼ 1½ Flange connections PN 16/PN 5 Victaulic connections Materials Impeller 1.431/1.444 Stage chambers 1.431/1.444 Pump housing 1.431/1.444 Pump shaft Seal FKM (Viton) EPDM/Viton Housing cover 1.431/ Mechanical seal B-carbon/tungsten carbide SiC/carbon Pressure shroud 1.431/1.444 Bearing Tungsten carbide EPDM/FKM (Viton) = available, - = not available Note on inlet pressure The maximum inlet pressure is calculated by subtracting the maximum delivery head of the pump at = from the maximum operating pressure of the system. Note on materials corresponds to AISI 34, corresponds to AISI 316L. Wilo Building Services catalogue 5 Hz Water supply Edition 11/1 Subject to change without prior notice 131

4 Pump curves Wilo-Economy MHI Wilo-Economy MHI Wilo-Economy-MHI -6 5 Hz NPSH [m] H[m] ,5 1 1,5,5 3 3,5 4 4,5 5 5,5,5 1 1, p 1 NPSH [l/s] p [%],5 1 1,5,5 3 3,5 4 4,5 5 5,5 1 6,8 P [kw],6,4 5 4, 3,5 1 1,5,5 3 3,5 4 4,5 5 5,5 Pump curves in accordance with ISO 996, class 13 Wilo Building Services catalogue 5 Hz Water supply Edition 11/1 Subject to change without prior notice

5 Pump curves Wilo-Economy MHI Wilo-Economy MHI Wilo-Economy-MHI Hz NPSH [m] H[m] ,5 1 1,5 6 4 p NPSH [l/s] 6 4 p [%] ,4 1, 1, 46 P [kw],8, ,4 43, Pump curves in accordance with ISO 996, class Wilo Building Services catalogue 5 Hz Water supply Edition 11/1 Subject to change without prior notice 133

6 Pump curves Wilo-Economy MHI Wilo-Economy MHI Wilo-Economy-MHI Hz NPSH [m] H[m] p 4 NPSH [l/s] p [%] , ,5 84 1,5 P [kw] 1 83,75 8,5, Pump curves in accordance with ISO 996, class 134 Wilo Building Services catalogue 5 Hz Water supply Edition 11/1 Subject to change without prior notice

7 Pump curves Wilo-Economy MHI Wilo-Economy MHI Wilo-Economy-MHI Hz NPSH [m] H[m] p NPSH [l/s] p [%] ,5 164 P [kw] 1, , Pump curves in accordance with ISO 996, class Wilo Building Services catalogue 5 Hz Water supply Edition 11/1 Subject to change without prior notice 135

8 Terminal diagram, motor data Wilo-Economy MHI Electrical connection 3~4 V Υ 1~3 V W U V U 1 V 1 W 1 L 1 L L 3 W U 1 W 1 L 3~3 V W U V U 1 V 1 W 1 L 1 L L 3 Motor data Wilo-Economy... Nominal motor power Nominal current 1~3 V, 5 Hz 3~3/4 V, 5 Hz P I N kw A MHI /1.7 MHI /1.7 MHI /1.7 MHI MHI 5N /1.85 MHI 6N /.7 MHI /1.7 MHI /1.7 MHI MHI 44N /1.85 MHI 45N /.7 MHI 46N /.7 MHI MHI 8N /1.85 MHI 83N /.7 MHI 84N /3.5 MHI 85N. 8.8 /5.1 MHI 16N /3.5 MHI 163N. 8.8 /5.1 MHI 164N. 8.8 / Wilo Building Services catalogue 5 Hz Water supply Edition 11/1 Subject to change without prior notice

9 Dimensions, weights Wilo-Economy MHI Dimension drawing Wilo-Economy MHI - 85 Dimension drawing Wilo-Economy MHI Ø 1/ 4" L 3 L 4 D L5 Ø 1/ 4" L 3 L 4 D L5 H H1 14 D 1 H H 1 15 D1 Ø 1 /4" Ø 9 L 1 L 18 Ø 1 /4" Ø 9 L 1 L 18 L 19 L 19 Terminal box, AC version (Represented by broken line) Terminal box, AC version (Represented by broken line) Dimensions, weights Wilo-Economy... Dimensions Weight approx. 1~ 3V 3~ 4V 1~ 3V 3~ 4V 1~ 3V Ø D 1 Ø D L L 1 L L 3 L 4 L 5 H H 1 m Rp mm kg MHI MHI MHI MHI MHI 5N MHI 6N MHI 4 1¼ MHI 43 1¼ MHI 44 1¼ MHI 44N 1¼ MHI 45N 1¼ MHI 46N 1¼ MHI 8 1½ 1¼ MHI 8N 1½ 1¼ MHI 83N 1½ 1¼ MHI 84N 1½ 1¼ MHI 85N 1½ 1¼ MHI 16N 1½ MHI 163N 1½ MHI 164N 1½ ~ 4V Wilo Building Services catalogue 5 Hz Water supply Edition 11/1 Subject to change without prior notice 137