HV 66/312 - 4.1 kW / 50 Hz - raw sewage pump
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The HV submersible electric pumps are particularly suitable for lifting water and raw sewage with a high content of solids and long fibres. Due to their robust design and the free-flowing vortex impeller, these pumps are characterised by high resistance to clogging and, thanks to the large spherical flow channels, excellent resistance to wear. The HV series impresses with its versatility of use, which compensates for the lower efficiency compared to channel pumps.
They are most often used to lift media with a high content of feces and pollutants, industrial and domestic sewage, raw sludge and septic sludge.
The connecting flanges of HV pumps enable installation on coupling feet, which can be purchased as a separate product.
Technical characteristics:
- Maximum lifting Hmax = 22 m,
- Maximum capacity Qmax = 20.3 l/s / 1220 l/min / 73.2 m3/h,
- Vortex rotor,
- Solid parts passage: Ø65 mm,
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Horizontal connection: DN65 PN10/16 ,
- Maximum water temperature: 40°C,
- pH range: 6-10,
- Maximum sewage density 1.1 kg/dm3,
- Maximum draft 20 m,
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Power cable 10 m.
Available versions:
- HV 66/312 - 3~400V
Construction:
- Squirrel cage asynchronous motor in a dielectric and antioxidant oil bath
- IP 68 protection class
- Insulation class F
- Single phase power supply with built-in motor protection and built-in capacitor and three phase power supply with mandatory protection provided by the user.
- Engine housing Cast iron GG 25,
- Shaft stainless steel AISI 420,
- Electric cable neoprene H07RN8-F oil resistant,
- A2 / AISI 304 class screws,
- O-ring and nitrile lip seal,
- Two separate mechanical seals in a chamber with ecological oil, the upper ceramic on silicon carbide, the lower silicon carbide on silicon carbide.
- Thermal protection and humidity probe available on request.