Design
Highly efficient, ready-for-connection water supply unit (non self-priming) with 2 to 6 vertically arranged glanded stainless steel high-pressure multistage centrifugal pumps from the Helix V series connected in parallel, including Comfort Controller CC (available with and without frequency converter).
Application
- Fully automatic water supply and pressure boosting in residential, commercial and public buildings, hotels, hospitals, department stores and for industrial systems.
- 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 V series stainless steel high-pressure multistage centrifugal pumps for all requirements contained in DIN 1988 (EN 806)
- High-efficiency pump hydraulics in conjunction with IE2 standard motors
- Hydraulics of entire system are pressure-loss optimised
- 2- 6 vertically arranged Helix V series high-pressure multistage centrifugal pumps switched in parallel
- Easy-to-use controller CC, with expanded functions, memory-programmable microcomputer control and graphics-ready touchscreen, menu-prompted input of operating parameters, available with or without frequency converter for stepless control of base-load pump
- Customised units on request
Technical data
- Mains connection 3~230 V / 400 ± 10%, 50 Hz
- Fluid temperature max. 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
- Nominal speed 2850 rpm
- Protection class IP 54 (control device CC)
- Fuse on mains side AC 3 according 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
