4’’ Borehole centrifugal pump
- Domestic, agricultural and industrial water supply systems
- Pressure boosting, fire-fighting plants
- Irrigation
- Washing
- Moving clear water in general
- Reliable and strong
- Corrosion-proof
- Exceptional efficiency due to the smooth surfaces of the impellers and nozzles
- Maximum immersion:
– 350 m (with motor in water bath)
– 150 m (with motor in bath of liquid refrigerant), - Maximum temperature of the liquid:30°C
- Maximum presence of sand: 50 ppm
- Maximum presence of Chlorine: 500ppm
- Discharge connection :
– G1frac14; (4BHS 2), G1½ (4BHS 4), G2 (4BHS 7-4BHS 15) - The pumps can be supplied as follows:
– 4BHS pump plus OY motor in bath of liquid refrigerant
– 4BHS pump plus WY motor in waterbath
The pump and the motor are supplied separately.
- 2 poles motor in bath of liquid refrigerant (OY), or in water bath (WY)
- Max start-ups per hour: : 30 (OY) – 20 (WY)
- Quick coupling for power supply cable
- Insulation class F (OY) – B (WY)
- Protection degree IP58 (OY) – IP68 (WY)
- Single-phase voltage 230V (±10%) 50Hz (OYM),
three-phase voltage 380-415V (±10%) 50Hz (OY) - Single-phase voltage 230V (-10%+6%) 50Hz (WYM),
three-phase voltage 380-415V (-10%+6%) 50Hz (WY) - For cables dimensioning please see our Data Book
- Motor discharge and motor bracket in moulded stainless steel
- Bracket, inlets, joint, impeller, diffuser, valve, stages, tie-rod and isolating cover in EN 1.4301 (AISI 304)
- Wear rings in EPDM/ EN 1.4301 (AISI 304)
- Shaft in EN 1.4401 (AISI 316)
- Radial bearings, axial bearings and friction ring in tungsten carbide
