Wilo HelixV627-1/25/E/KS/400-50, Pressure Boosting Pump

Description

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, permanently mounted 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.

Hydraulic data

• Minimum Effectiveness Index (MEI) : ≥0.7
• Inlet pressure: 10 bar
• Maximum operating pressure PN: 25 bar
• Pressure connection: DN 32
• My. medium temperature Tmin: -30 °C
• Max. medium temperature Tmax: 120 °C
• Ambient temperature min. Tmin: -15 °C
• Max. ambient temperature Tmax: 50 °C

Engine data

• Mains connection: 3~400 V, 50 Hz
• Voltage tolerance: ±10%
• Motor rated power P2: 5.5kW
• Motor efficiency class: IE3
• Rated current IN: 10.5 A
• Rated speed n: 2900 1/min
• Capacity factor: 0.86
• Connection type: Direct/star-delta
• Engine efficiency ηm 50% ηM 50%: 87.1%
• Motor efficiency ηm 75% ηM 75%: 89%
• Engine efficiency ηm 100% ηM 100%: 89.2%
• Insulation class: F
• Protection class motor: IP55

Material

• Pump housing: stainless steel
• Impeller: stainless steel
• Shaft: stainless steel
• Mechanical seal: BQ1EGG
• Material seal: EPDM