Grundfos - Hydro Multi-E 3 CRIE 10-9 U2 A-A-A-A-A Booster Set - 400V - Three Phase - 900 Ltr/min. - Stainless Steel

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 set consists of 2 to 4 CRIE 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 of Stainless Steel (DIN W.-Nr. 1.4301). On the suction side are fitted a suction manifold (DIN W.-Nr. 1.4401 or DIN W.-Nr. 1.4571) , a pressure switch mounted on a drainable valve and 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 a drainable valve a diaphragm tank and a Stainless Steel discharge manifold (DIN W.-Nr. 1.4401 or DIN W.-Nr. 1.4571). 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 assembly can be operated directly on the panel of any of the pumps or via Grundfos GO (available as accessory)

Besides the system features:
2 Digital outputs 2 Digital inputs (one used for dry run protection) 2 Analogue inputs (one used for discharge pressure sensor) Multi-Master functionality 2 Limit functions Set-point influence function Pipe filling function High high-efficiency PM motors

Available communication protocols:

When delivered, the GRUNDFOS Hydro Multi-E booster set is factory tested and ready for operation.

Suitable for: Commercial water pressure boosting, District heating, District cooling, Industrial water supply and transfer, Water distribution, Community water supply

Real-world product applications

• Boosting water pressure to multiple outlets in a building
• Maintaining stable pressure where demand varies
• Supplying water from storage tanks to distribution pipework
• Supporting general water supply and transfer systems
• Assisting with pressure control in utility installations

Key Product Features

• Net weight: 367 kg
• Mains frequency: 50 / 60 Hz
• Product Voltage: 3 x 380-415 V
• Temperature Liquid Range: 5 .. 60 °C
• Pumped Liquid: Water
• Maximum Operating Pressure: 16 bar
• Pump Housing Material: Stainless Steel

This is a Grundfos Booster pump or pressure system for increasing and maintaining system pressure.

Grundfos (est. 1945) is a Danish pump manufacturer known for high-efficiency circulators, multistage boosters, borehole and wastewater pumps, plus packaged pressure systems. The range covers HVAC circulation, domestic hot water recirculation, pressure boosting, industrial water transfer and public water management, with strong focus on energy efficiency and intelligent controls.