Design
High-efficiency connection-ready water-supply unit (non-self-priming) with one vertically arranged stainless steel high-pressure multi-stage centrifugal pump in glanded version of the Helix VE series.
Application
- Fully automatic water supply in inlet mode, either from the public water supply network or from a tank
- Pumping of potable water, process water, cooling water, fire water (apart from fire-extinguishing systems in accordance with DIN 14462) or other water mixtures that do not attack the materials used chemically or mechanically and do not contain abrasive or long-fibre constituents
Special features / product benefits
- Heavy-duty system with Helix VE series stainless-steel high-pressure multi-stage centrifugal pump and air-cooled integrated frequency converter
- High-efficiency pump hydraulics in conjunction with IE2-equivalent standard motors
- Super-proportionally large control range of frequency converter from 25 Hz up to a maximum of 60 Hz (version-dependent)
- Integrated full motor protection via PTC
- Integrated dry-running detection with automatic cut-out in event of low water via performance characteristics of the motor control electronics
- Customised units on request
Technical data
Mains connection 3~400 V ± 10%, 50 Hz; 3~380/440 V ±10%, 60 Hz- Fluid temperature max. +50°C (+70°C optional)
- Ambient temperature max. 40°C
- Operating pressure 16 bar (25 bar optional)
- Inlet pressure 10 bar
- Nominal connection diameters on discharge side R 1½ ‐ DN 100
- Nominal connection diameter on the intake side R 1½” – DN 100
- Speed range 1500 -3770 rpm
- Protection class: IP 54 (control device SC)
- Fuse A, AC 3 on mains side according to motor power and EVU regulations
- Approved fluids (other fluids on request):
- Potable water and secondary hot water
- Cooling water
- Fire water (wet line; for dry lines on request – comply with separate specifications of DIN 1988 (EN 806) and of fire-protection authorities.)
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. System in accordance with DIN 1988 (EN 806)
