Wilo-Comfort CO-/COR-MVI.../CC RBI

Pressure boosting system with 2 to 6 parallel-switched, non self-priming stainless steel high-pressure multistage centrifugal pumps

• 2-6 pumps of the MVI RBI series per system
• Automatic pump control via CC Controller
• Components that come in contact with fluid are corrosion-resistant
• Base frame galvanised, with height-adjustable vibration absorbers for insulation against structure-borne noise
• Check valve at each pump, on the suction and pressure sides
• Non-return valve, pressure side
• Diaphragm pressure vessel 8 l, PN16, pressure side
• Pressure sensor, on the discharge side
• Optional pressure gauge, suction side
• Pressure gauge, discharge side
• Optional low-water cut-out switchgear

• Mains connection 3~230 V/400 V ± 10%, 50 Hz
• Max. fluid temperature 50 °C (70 °C optional)
• Operating pressure 16 bar (25 bar optional)
• Inlet pressure 10 bar
• Nominal connection diameters on discharge side R 1½ - DN 200
• Nominal connection diameter on the intake side R 1½" - DN 200
• Rated speed 2850 rpm
• Protection class IP 54 (CC control device)
• Fuse protection on mains side AC 3 according to motor power and EVU regulations
• Approved fluids (other fluids on request):Note on fluids: Approved fluids are generally water mixtures which do not chemically or mechanically attack the materials used and do not contain either abrasive or fibrous matter
  • Drinking water and domestic hot water
  • Cooling water
  • Fire water

MVI RBI 1.. to 16..-6

• Impellers and stage chambers made of 1.4301/1.4404 stainless steel (MVI RBI 16..-6 only in 1.4301)
• Pump housing made of 1.4301/1.4404 stainless steel
• Shaft 1.4301/1.4404 stainless steel
• Gasket EPDM (EP 851) / FKM (Viton)
• Housing cover made of 1.4301/1.4404 stainless steel
• Housing bottom 1.4301/1.4404 stainless steel
• Mechanical seal B-carbon/tungsten carbide, SiC/carbon
• Pressure shroud 1.4301/1.4404 stainless steel
• Bearing, tungsten carbide
• Pump base EN-GJL-250
• Pipework made of 1.4404 stainless steel

MVI RBI 16.. to 95..

• Impellers 1.4301/1.4404 stainless steel
• Stage chambers 1.4301/1.4404 stainless steel
• Pump housing EN-GJL-250/1.4404
• Shaft 1.4057/1.4404 stainless steel
• Gasket EPDM (EP 851) / FKM (Viton)
• Housing cover made of 1.4301/1.4404 stainless steel
• Housing bottom 1.4301/1.4404 stainless steel
• Mechanical seal B-carbon/tungsten carbide, SiC/carbon
• Pressure shroud 1.4301/1.4404 stainless steel
• Bearing, tungsten carbide
• Pipework made of 1.4404 stainless steel

• Base frame: galvanised and provided with height-adjustable vibration absorbers for comprehensive insulation against structure-borne noise; other versions on request
• Pipework: complete pipework made of stainless steel, suitable for the connection of all piping materials used in building services; the pipework is dimensioned according to the overall hydraulic performance of the pressure boosting system
• Pumps: 2 to 6 pumps of the MVI RBI 2 to MVI RBI 95 series switched in parallel are used; all pump components in contact with fluid are made of stainless or, starting with MVI RBI 16.., of grey cast iron (cataphoretic-coated) or stainless steel on request
• Valves: each pump is fitted on the suction and pressure side with a check valve with DVGW approval mark or annular shut-off valves and a pressure-side DVGW-approved non-return valve
• Diaphragm pressure vessel: 8 l/PN 16 located on the discharge side with a butyl rubber diaphragm, completely safe in accordance with food safety laws, for testing and inspection purposes, with shut-off ball cock, with drain and throughflow fitting according to DIN 4807
• Pressure sensor: 4 to 20 mA, located on the discharge side for activating the central Comfort Controller
• Pressure display: suction- and discharge-side pressure gauge (ø 63 mm); additional digital display of discharge pressure in the alphanumeric touchscreen of the Comfort Controller.
• Switchgear/controller: the system is equipped with a CC Comfort Controller as standard; COR additionally with a frequency converter

• Factory-mounted, connection-ready pressure boosting system checked for functionality and impermeability
• Packaging
• Installation and operating instructions

Series design without casing. Noise-attenuation casing on request.

• Mains connection 3~230 V/400 V ± 10%, 50 Hz
• Max. fluid temperature 50 °C (70 °C optional)
• Operating pressure 16 bar (25 bar optional)
• Inlet pressure 10 bar
• Nominal connection diameters on discharge side R 1½ - DN 200
• Nominal connection diameter on the intake side R 1½" - DN 200
• Rated speed 2850 rpm
• Protection class IP 54 (CC control device)
• Fuse protection on mains side AC 3 according to motor power and EVU regulations
• Approved fluids (other fluids on request):Note on fluids: Approved fluids are generally water mixtures which do not chemically or mechanically attack the materials used and do not contain either abrasive or fibrous matter
  • Drinking water and domestic hot water
  • Cooling water
  • Fire water

MVI RBI 1.. to 16..-6

• Impellers and stage chambers made of 1.4301/1.4404 stainless steel (MVI RBI 16..-6 only in 1.4301)
• Pump housing made of 1.4301/1.4404 stainless steel
• Shaft 1.4301/1.4404 stainless steel
• Gasket EPDM (EP 851) / FKM (Viton)
• Housing cover made of 1.4301/1.4404 stainless steel
• Housing bottom 1.4301/1.4404 stainless steel
• Mechanical seal B-carbon/tungsten carbide, SiC/carbon
• Pressure shroud 1.4301/1.4404 stainless steel
• Bearing, tungsten carbide
• Pump base EN-GJL-250
• Pipework made of 1.4404 stainless steel

MVI RBI 16.. to 95..

• Impellers 1.4301/1.4404 stainless steel
• Stage chambers 1.4301/1.4404 stainless steel
• Pump housing EN-GJL-250/1.4404
• Shaft 1.4057/1.4404 stainless steel
• Gasket EPDM (EP 851) / FKM (Viton)
• Housing cover made of 1.4301/1.4404 stainless steel
• Housing bottom 1.4301/1.4404 stainless steel
• Mechanical seal B-carbon/tungsten carbide, SiC/carbon
• Pressure shroud 1.4301/1.4404 stainless steel
• Bearing, tungsten carbide
• Pipework made of 1.4404 stainless steel

• Base frame: galvanised and provided with height-adjustable vibration absorbers for comprehensive insulation against structure-borne noise; other versions on request
• Pipework: complete pipework made of stainless steel, suitable for the connection of all piping materials used in building services; the pipework is dimensioned according to the overall hydraulic performance of the pressure boosting system
• Pumps: 2 to 6 pumps of the MVI RBI 2 to MVI RBI 95 series switched in parallel are used; all pump components in contact with fluid are made of stainless or, starting with MVI RBI 16.., of grey cast iron (cataphoretic-coated) or stainless steel on request
• Valves: each pump is fitted on the suction and pressure side with a check valve with DVGW approval mark or annular shut-off valves and a pressure-side DVGW-approved non-return valve
• Diaphragm pressure vessel: 8 l/PN 16 located on the discharge side with a butyl rubber diaphragm, completely safe in accordance with food safety laws, for testing and inspection purposes, with shut-off ball cock, with drain and throughflow fitting according to DIN 4807
• Pressure sensor: 4 to 20 mA, located on the discharge side for activating the central Comfort Controller
• Pressure display: suction- and discharge-side pressure gauge (ø 63 mm); additional digital display of discharge pressure in the alphanumeric touchscreen of the Comfort Controller.
• Switchgear/controller: the system is equipped with a CC Comfort Controller as standard; COR additionally with a frequency converter

• Factory-mounted, connection-ready pressure boosting system checked for functionality and impermeability
• Packaging
• Installation and operating instructions

Series design without casing. Noise-attenuation casing on request.