Grundfos 77S75-15
Product ID: 98924484
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Grundfos 77S75-15
Grundfos 77S75-15
Multi-stage submersible pump for raw water supply, groundwater lowering and pressure boosting. The pump is suitable for pumping clean, thin, non-agressive liquids without solid particles or fibres.
The motor is a 3-phase motor with sand shield, liquid-lubricated bearings and pressure equalizing diaphragm.
| Liquid: | |
| Pumped liquid: | Water |
| Liquid temperature range: | -15 .. 40 °C |
| Selected liquid temperature: | 20 °C |
| Density: | 998.2 kg/m³ |
| Technical: | |
| Pump speed on which pump data are based: | 3450 rpm |
| Rated flow: | 16.7 m³/h |
| Rated head: | 91.8 m |
| Approvals: | CULDWUS,CCSAUS |
| Approvals for motor: | CCSAUS,C_UL_US_NSF372 |
| Approvals for drinking water: | PROP65 |
| Curve tolerance: | ISO9906:2012 3B |
| Motor version: | T40 |
| Return valve: | YES |
| Materials: | |
| Pump: | Stainless steel |
| EN 1.4301 | |
| AISI 304 | |
| Impeller: | Stainless steel |
| EN 1.4301 | |
| AISI 304 | |
| Motor: | Stainless steel |
| EN 1.4301 | |
| AISI 304 | |
| Shaft seal: | HM/Ceramics |
| Installation: | |
| Maximum ambient pressure: | 60 bar |
| Maximum operating pressure: | 60 bar |
| Maximum outlet pressure: | 13.3 bar |
| Type of connection: | NPT(F) |
| Size of connection: | 2 inch |
| Motor diameter: | 4 inch |
| Minimum borehole diameter: | 105 mm |
| Electrical data: | |
| Motor type: | MS4000 |
| Motor flange design: | NEMA |
| Rated power - P2: | 5.5 kW |
| Power (P2) required by pump: | 5.5 kW |
| KVA code: | J |
| Mains frequency: | 60 Hz |
| Rated voltage: | 3 x 208-220-230 V |
| Service factor: | 1.15 |
| Rated current: | 24.5-23.4-23.8 A |
| Starting current: | 490-550-570 % |
| Cos phi - power factor: | 0.87-0.84-0.79 |
| Rated speed: | 3440-3470-3480 rpm |
| Maximum axial load: | 450 kg |
| Method of start: | Direct-on-line (DOL) |
| Enclosure class (IEC 34-5): | IP68 |
| Insulation class (IEC 85): | F |
| Ex-protection standard: | NONE |
| Thermal protection: | External |
| Built-in temp. transmitter: | Yes |
| Motor No: | 92959954 |
| Windings: | Enameled |
| Others: | |
| DOE Pump Energy Index CL: | 0.91 |
| Net weight: | 42.8 kg |
| Gross weight: | 76.5 kg |
| Shipping volume: | 0.264 m³ |
Applications
- Domestic ground water intake — Groundwater is essential for water supply. Providing a reliable, fresh supply of water for all homeowners is equally essential, particularly for those whose water source is a private groundwater well.
- Domestic water pressure boosting — Low or varying water pressure in the home? A water pressure pump solves the very common problems of low-pressure showers and trickling taps that reduce comfort in one- or two-family homes.
- Ground water intake — You require a cost-effective, reliable and energy-optimised submersible pumping solution for borehole installations. Our pumps and pump systems are optimised for the highest performance and reliability for groundwater installations.
- Solar water solutions — Grundfos supplies solar-powered water pumps and complete solar water solutions that deliver unmatched flexibility for reliable water supply with no ongoing energy costs.
category
- Submersible groundwater pumpsGrundfos submersible pumps represent advanced hydraulic design and offer high efficiency, high resistance to sand and other abrasives, motor burnout protection and easy maintenance. Made entirely of corrosion-resistant stainless steel, Grundfos submersible pumps are ideal for applications including groundwater supply, irrigation, groundwater lowering and pressure boosting.