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Vertical multistage pumps in stainless steel, designed for pressure boosting in residential, commercial and industrial applications.

Suitable for use with drinking water and available with or without an integrated variable speed drive.

Applications
  •  Water supply and pressure boosting
  • Fire extinguishing systems
  • Boiler feed
  • Industrial circulation systems
  • Process engineering
  • Cooling water circulation systems
  • Washing and sprinkling systems
Equipment/function
  • Stainless steel pump in inline design (only MVI 1.. to 8..)
  • MVI 1.. to 8..: PN16 version with oval flange; PN25 version with round flange
  • MVI 70.. and 95..: PN16 and PN25 version with round flange
Scope of delivery
  • MVI high-pressure multistage centrifugal pump
  • MVI 1.. – 8..: Oval counter flanges with corresponding screws and O-rings (PN16 variant)
  • Installation and operating instructions
  • Corrosion-resistant impellers, diffusors and stage housings
  • Drinking water approval for all components that come in contact with the fluid (EPDM version)

MVI 1.. to 8..:

  • Impellers and stage chambers of stainless steel 1.4301 (AISI 304) (1.4404 (AISI 316) for aggressive media)
  • Pump housing of stainless steel 1.4301 (AISI 304) (1.4404 (AISI 316) for aggressive media)
  • Shaft, depending on type, of stainless steel 1.4301 (AISI 304) (1.4404 (AISI 316) for aggressive media)
  • Gasket of EPDM/FKM (Viton)
  • Housing cover of stainless steel 1.4301 (AISI 304) (1.4404 (AISI 316) for aggressive media)
  • Housing bottom of stainless steel 1.4301 (AISI 304) (1.4404 (AISI 316) for aggressive media)
  • Mechanical seal of B-carbon/tungsten carbide, SiC/carbon
  • Jacket pipe of stainless steel 1.4301 (AISI 304) (1.4404 (AISI 316) for aggressive media)
  • Bearing of tungsten carbide
  • Baseplate EN-GJL-250

MVI 70../95..:

  • Impellers of stainless steel 1.4408 (AISI 316)
  • Stage chambers made of 1.4301 (AISI 304) stainless steel
  • Pump housing made of cataphoretic-coated grey cast iron EN-GJL 250
  • Shaft 1.4057 (AISI 431) stainless steel
  • Gasket EPDM
  • Housing cover made of 1.4301 (AISI 304) stainless steel
  • Housing bottom made of 1.4301 (AISI 304) stainless steel
  • Mechanical seal of B-carbon/tungsten carbide, SiC/carbon
  • Pressure shroud made of 1.4301 (AISI 304) stainless steel
  • Bearing of tungsten carbide

Specifications

Fluid temperature of -15 to +120 °C (with EPDM), (-15 to +90 °C with FKM)
Operating pressure max. 16/25 bar
Max. inlet pressure of 10 bar
Protection class IP 55

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