Wilo-Comfort-Vario COR MHIE.../MS

Pressure-boosting system with 2 to 3 non self-priming stainless steel high-pressure multistage centrifugal pumps switched in parallel with integrated frequency converter

• Fully automatic water supply and pressure boosting in inlet mode, either from the public water supply network or from a tank, for domestic, commercial, industrial and municipal applications (e.g. residential, office, administration buildings, hotels, hospitals, trades, industry, water supply companies)
• Pumping drinking water, process water, cooling water or other industrial water, which does not affect the materials used, neither chemically nor mechanically, and does not have any abrasive or long-fibre constituents

• 2 — 3 MHIE pumps per system
• Continuous control mode by use of pumps with integrated frequency converters
• Components that come in contact with the fluid are corrosion-resistant
• Galvanised base frame with height-adjustable vibration absorbers for insulation against structure-borne noise
• Stop valve on every pump on the suction and pressure sides
• Non-return valve, pressure side
• Diaphragm pressure vessel 8 l, PN 10, on the pressure side
• Pressure sensor, on the discharge side
• Pressure gauge optional, on the suction side
• Pressure gauge, discharge side
• Low-water cut-out switchgear, optional
• Switchgear with IP54 plastic housing

• Mains connection 3~400 V +-10%, 50 Hz; 3~380/440 V +-10 %, 60 Hz (other versions on request)
• Max. fluid temperature 50 °C (70 °C optional)
• Max. ambient temperature 40 °C
• Operating pressure 10 bar
• Inlet pressure 6 bar
• Discharge-side nominal connection diameter R 2"/DN 100
• Intake-side nominal connection diameter R 2"/DN 100
• Speed range 1200 — 3770 rpm
• Protection class IP54
• Fuse protection on mains side A, AC 3 according to motor power and EVU regulations
• Approved fluids (other fluids on request). Approved fluids are normally waters which do not corrode the materials used, neither chemically nor mechanically, and do not contain any abrasive or long-fibre constituents.
• Cooling water
• Drinking and process water

Single pump:

• Impellers, stage chambers and pump housing made of stainless steel 1.4301/1.4404
• Shaft of stainless steel 1.4404
• EPDM gasket (EP851)/FKM (Viton)
• Mechanical seal made of tungsten carbide/carbon
• Bearing of tungsten carbide
• Pump support foot made of aluminium

• Base frame: galvanised and 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 dimensions must correspond to the overall hydraulic performance of the pressure-boosting system
• Pumps: 2 to 3 pumps from the MHIE series 2.., 4.., 8.. and 16.. switched in parallel; the frequency converter adapted to the pump motor enables continuous auto control for all pumps in these series; all pump components coming into contact with liquids are made of 1.4301/1.4404 stainless steel
• Valves: Each pump is equipped on the suction and pressure side with a shut-off valve with ACS approval mark or annular shut-off valves and a pressure-side non-return valve with ACS approval
• Diaphragm pressure vessel: 8 l/PN 10 on the discharge side with butyl rubber diaphragm, completely safe according to the food safety regulations; for test and inspections purposes, having ball valve and drain and throughflow fitting according to DIN 4807
• Pressure sensor: 4 to 20 mA, on the discharge side

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

• Mains connection 3~400 V +-10%, 50 Hz; 3~380/440 V +-10 %, 60 Hz (other versions on request)
• Max. fluid temperature 50 °C (70 °C optional)
• Max. ambient temperature 40 °C
• Operating pressure 10 bar
• Inlet pressure 6 bar
• Discharge-side nominal connection diameter R 2"/DN 100
• Intake-side nominal connection diameter R 2"/DN 100
• Speed range 1200 — 3770 rpm
• Protection class IP54
• Fuse protection on mains side A, AC 3 according to motor power and EVU regulations
• Approved fluids (other fluids on request). Approved fluids are normally waters which do not corrode the materials used, neither chemically nor mechanically, and do not contain any abrasive or long-fibre constituents.
• Cooling water
• Drinking and process water

Single pump:

• Impellers, stage chambers and pump housing made of stainless steel 1.4301/1.4404
• Shaft of stainless steel 1.4404
• EPDM gasket (EP851)/FKM (Viton)
• Mechanical seal made of tungsten carbide/carbon
• Bearing of tungsten carbide
• Pump support foot made of aluminium

• Base frame: galvanised and 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 dimensions must correspond to the overall hydraulic performance of the pressure-boosting system
• Pumps: 2 to 3 pumps from the MHIE series 2.., 4.., 8.. and 16.. switched in parallel; the frequency converter adapted to the pump motor enables continuous auto control for all pumps in these series; all pump components coming into contact with liquids are made of 1.4301/1.4404 stainless steel
• Valves: Each pump is equipped on the suction and pressure side with a shut-off valve with ACS approval mark or annular shut-off valves and a pressure-side non-return valve with ACS approval
• Diaphragm pressure vessel: 8 l/PN 10 on the discharge side with butyl rubber diaphragm, completely safe according to the food safety regulations; for test and inspections purposes, having ball valve and drain and throughflow fitting according to DIN 4807
• Pressure sensor: 4 to 20 mA, on the discharge side

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