Wilo Helix, V409-1/25/E/KS/400-50, Pressure Boosting Pump

Description

Multi-wheel normal suction booster pump. Vertical design. With cassette feeding. Hydraulic parts made of stainless steel, cataphoresis pump housing base. Highly efficient pressure booster pump in vertical design with inline connections. The normal-suction booster pump has a compact design and is easy to maintain. The connection to the pump shaft and the shaft of the IEC standard motor is made with a sleeve coupling. A separate lantern roller bearing ensures optimal absorption of axial force. Intermediate bearings in the hydraulics and corrosion-resistant shaft with stainless steel sleeve guarantee a long service life. Special fixed lifting eyes make the pump easy to install. The pump is suitable for use in water supply and pressure boosting, in industrial circulation systems as well as in process water circuits and closed cooling circuits. It can also be used in fire extinguishing systems, laundry facilities and for irrigation.

Product data

• Min. medium temperature Tmin: -30 °C
• Max. medium temperature Tmax: 120 °C
• Max. ambient temperature Tmax: 50 °C
• Maximum operating pressure PN: 25 bar
• Inlet pressure: 10 bar
• Minimum Effectiveness Index (MEI): ≥0.7
• Color: Green/silver

Engine data

• Mains connection: 3~400 V, 50 Hz
• Voltage tolerance: ±10%
• Motor rated power P2: 1.1 kW
• Motor efficiency class: IE3
• Rated current IN: 2.5 A
• Rated speed n: 2900 1/min
• Capacity factor: 0.80
• Engine efficiency ηm 50% ηM 50%: 78.7%
• Engine efficiency ηm 75% ηM 75%: 82%
• Engine efficiency ηm 100% ηM 100%: 82.7%
• Insulation class: F
• Protection class: IP55

Material

• Pump housing: Stainless steel
• Impeller: Stainless steel
• Shaft: Stainless steel
• Shaft seal: BQ1EGG
• Material seal: EPDM

Installation dimensions

• Pipe connection on the suction side: DN 25
• Pipe connection on the pressure side: DN 25

Measure

• Length L: 252 mm
• Height H: 799 mm
• Width W: 212 mm
• X: 115 mm