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Wilo-Comfort COR Helix VE
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Pressure boosting system with 2 to 4 parallel-switched, non-self-priming stainless steel high-pressure multistage centrifugal pumps with speed-controlled motors
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zoom »Special features/Product advantages
- Compact system with outstanding price/performance ratio due to MHIE series stainless steel high-pressure multistage centrifugal pumps with integrated air-cooled frequency converters
- Superproportionally large control range
- Integrated full motor protection via PTC
- Integrated dry-running detection with automatic deactivation in the event of low water through the use of the performance characteristics of the motor control electronics
Wilo-Comfort COR Helix VE
Technical data
- Mains connection 3~400 V, 50 / 60 Hz, also 1~230V, 50/60 Hz, depending on type
- System in accordance with DIN 1988 (EN 806)
- Fuse A, AC 3 on mains side in conformity with motor power and EVU regulations
- Stainless steel pipework
- Fluid temperature max. 60 °C
- Operating pressure 10 bar
- Inlet pressure 6 bar
- Nominal connection diameters on suction side R 2 - DN 100
- Nominal connection diameters on pressure side R 2 - DN 100
- Protection class: IP 54
Equipment
- 2-4 pumps per system
- Infinitely variable control mode through the use of pumps with integrated frequency converters
- Components in contact with fluid are corrosion resistant
- Galvanized base frame with height-adjustable vibration damper for insulation against structure-borne noise
- Pipework made of 1.4571 stainless steel
- Gear-operated shut-off ball cock/annular shut-off valve on suction and pressure side of every pump
- Non-return valve, pressure side
- Diaphragm pressure vessel 8 l, PN16, pressure side
- Pressure sensor, discharge side
- Optional pressure gauge (suction side)
- Pressure gauge (discharge side)
- Optional low-water cut-out switchgear
Description/Design
- Base frame: Galvanized and provided with height-adjustable vibration dampers for comprehensive insulation against structure-borne noise; other versions on request
- Pipework: Complete pipework made of 1.4571 stainless steel, suitable for connection of all commonly used piping materials; the pipework is sized corresponding to the overall hydraulic performance of the pressure boosting system
- Pumps: 2 to 4 parallel-switched pumps are used from the series MHIE 2.., 4.., 8.. and 16..; adapted frequency converters on the pump motor enable infinitely variable control mode for all pumps of these series; all pump components in contact with fluid are made of 1.4301 stainless steel (AISI 304)
- Fittings: Each pump is fitted on suction and pressure side with DVGW-tested, Ni-coated, CuZn gear-operated shut-off ball fittings or annular shut-off valves and a pressure-side DVGW-approved POM non-return valve in a CuZn housing
- 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; complete with Ni-coated CuZn shut-off ball cock for tests and inspections, with drain and throughflow fitting in accordance with DIN 4807
- Pressure sensor: 4 to 20 mA, located on the discharge side for activating the central Comfort Vario controller
- Pressure display: Suction- and discharge-side pressure gauge (ø 63 mm); additional digital display of discharge pressure in the alphanumeric LCD display of the Comfort Vario controller
- Controller: The system is standard-equipped with a VR Vario controller
Materials
- Impellers made of 1.4301/1.4404 stainless steel
- Stage chambers made of 1.4301/1.4404 stainless steel
- Pump housing made of 1.4301/1.4404 stainless steel
- Shaft made of 1.4404 stainless steel
- Seals EPDM (EP851)/Viton
- Housing cover made of 1.4301/1.4404 stainless steel
- Mechanical seal made of tungsten carbide/carbon
- Pressure shroud made of 1.4301/1.4404 stainless steel
- Bearing made of tungsten carbide
- Pump base made of aluminium
Scope of delivery
- Factory-mounted, connection-ready pressure boosting system checked for functionality and impermeability
- Packaging
- Installation and operating instructions
Wilo-Comfort COR Helix VE
| Name | Suction size | Nominal size | 1-phase / 3-phase | Rated power |
|---|---|---|---|---|
| Comfort-Vario COR-4 Helix VE2205/VR | DN 125 | 3~ 400 V | 11 kW | |
| Comfort-Vario COR-4 Helix VE2204/VR | DN 125 | 3~ 400 V | 7,5 kW | |
| Comfort-Vario COR-4 Helix VE2203/VR | DN 125 | 3~ 400 V | 5,5 kW | |
| Comfort-Vario COR-3 Helix VE2205/VR | DN 100 | 3~ 400 V | 11 kW | |
| Comfort-Vario COR-3 Helix VE2204/VR | DN 100 | 3~ 400 V | 7,5 kW | |
| Comfort-Vario COR-3 Helix VE2203/VR | DN 100 | 3~ 400 V | 5,5 kW | |
| Comfort-Vario COR-2 Helix VE2205/VR | R 3 | - | 3~ 400 V | 11 kW |
| Comfort-Vario COR-2 Helix VE2204/VR | R 3 | - | 3~ 400 V | 7,5 kW |
| Comfort-Vario COR-2 Helix VE2203/VR | R 3 | - | 3~ 400 V | 5,5 kW |
Wilo-Comfort COR Helix VE
