Product Description
Grundfos HYDRO MULTI-E 3 CRE 20-6
GRUNDFOS Hydro Multi-E booster sets are designed for the transfer and pressure boosting of clean water in waterworks, blocks of flats, hotels, industry, hospitals, schools, etc. GRUNDFOS Hydro Multi-E booster sets consists of 2 to 3 CR(N)E pumps coupled in parallel and mounted on a common base frame provided with all the necessary fittings.
Hydro Multi-E is mounted on a common base frame made in stainless steel. On the suction side are fitted a suction manifold (EN 1.4301/ AISI 304) and two pressure transmitters which are mounted on an isolating valve. On the discharge side of the pumps are fitted a non-return valve, an isolating valve, a pressure gauge, two pressure transmitters mounted on an isolating valve, a diaphragm tank and a stainless steel discharge manifold (EN 1.4301/ AISI 304). The Hydro Multi-E is fitted with an on/off-switch for the supply voltage.
The Hydro Multi-E is designed for maintaining a constant pressure regardless of flow changes and fluctuation.
The internal PI-controller regulates the number of running pumps and the speed of the pumps according to the required flow.
The system can be operated directly on the graphical display of any of the pumps or via Grundfos GO (available as accessory).
Besides the system features:
- 2 Relay outputs
- 2 Digital inputs (one used for external start/stop)
- 2 Digital configurable input/output
- 3 analogue inputs (one used for discharge pressure and one used for inlet pressure)
- Multi-Master functionality
- 2 Limit exceed functions (one used for dry running protection)
- Set-point influence
- Pipe filling function
- Proportional pressure and High Efficient PM motors
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Water Supply Unit Booster Unit
HYDRO MULTI-E 3 CRE 20-6
Serial Number 92879690
Suitable for
Commercial Water Pressure Boosting
District Heating
District Cooling
Industrial Water Supply and Transportation
Municipal Water Transmission and Distribution
Water Supply for Residential Areas and Buildings
Energy-saving pressure boosting system, used for boosting the pressure of clean water. It can be applied to 2-4 frequency-modulated pumps connected side by side, with a built-in advanced controller and all necessary accessories.
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Product Information
- Product Name: HYDRO MULTI-E 3 CRE 20-6
- Product Number: 92879690
- EAN Number: 5715120951464
- Price: Not provided
Technical Parameters
- Maximum Flow Rate: 105 m³/h
- Minimum Flow Rate of the System: 12.5 m³/h
- Maximum Head: 128 meters
- Pump Name: CRE 20-6
- Number of Pumps: 3
Materials
- Pump Casing: Cast Iron
- Main Pipe: Stainless Steel
Installation Conditions
- Maximum Ambient Temperature: 40 °C
- Maximum Operating Pressure: 16 bar
- Maximum Allowable Inlet Pressure: PN 16 bar
- Flange Standard: DIN2642
- Manifold Inlet: DN 100
- Manifold Outlet: DN 100
- Earth Connection: N, PE
Liquid - related
- Conveyed Liquid: Water
- Liquid Temperature Range: 5 - 60 °C
- Liquid Temperature during Operation: 20 °C
- Density: 998.2 kg/m³
Electrical Data
- Main Pump Power (P2): 7.5 kW
- Power Supply Frequency: 50 / 60 Hz
- Rated Voltage: 3 x 380 - 415 V
- Rated Current: 44.9 A
- IE Efficiency Class: IE5
- Starting Method: Electronic
- Degree of Protection (IEC 34 - 5): IP54
Water Tank
Others
- Net Weight: 530 kg
- Gross Weight: 614 kg
- Language: MULTI
- Sales Region: China
- Place of Origin: CN
- Tariff Number: 84137099.90
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