Grundfos SQE 5-70 96510168 3 inch submersible pump with inverter 1x230V 1.85kW stainless steel
- Grundfos SQE 5-70 3" submersible pump 96510168, single-phase 1x230 V with built-in frequency converter. Provides constant system pressure and water lifting up to about 70 m water column.
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Grundfos SQE 5-70, 1x230 V, 50 Hz, 96510168 - submersible pump with electronic speed control
Grundfos SQE 5-70 is a single-phase, multi-stage 3" submersible pump with built-in frequency converter, designed for pumping clean water from drilled wells and reservoirs. The unit provides constant system pressure, high energy efficiency and protection against dry-running, overvoltage and overload.
- Built-in speed control (inverter) to maintain constant system pressure.
- Compact 3" design for installation in narrow boreholes and tanks.
- Single-phase 1x230V motor with smooth start, dry-run and overload protection.
- Multi-stage hydraulic system for lifting up to about 70 m water column and high efficiency.
- Corrosion-resistant materials (stainless steel) for pumping drinking and utility water.
- Possibility of cooperation with CU/PM control system for automation of booster sets.
Application and benefits expLoatation
The SQE 5-70 pump is designed for pressure boosting and water supply from deep wells, drilled wells and reservoirs, in residential and small industrial applications. Thanks to the built-in frequency converter and cooperation with a suitable controller, the pump maintains constant pressure regardless of the current water consumption. A soft-start function reduces hydraulic surges and current loads, increasing the life of the system. Integrated protections against dry-running, overvoltage, under-voltage, over-voltage and overload reduce the risk of damage and nopLanced downtime.
Design and performance characteristics
The Grundfos SQE 5-70 is a multi-stage pump with floating type impellers that increase resistance to fine solids in the pumped water. The slim 3" design facilitates installation in small diameter wells. All key components in contact with water are made of stainless steel and materials approved for contact with domestic water. The integrated 50 Hz single-phase motor operates in a water bath, and the built-in control electronics allow infinitely variable speed control depending on the signal from the control system to optimize energy consumption. The pump is suitable for continuous operation over the entire permissible range of characteristics and for vertical installation in wells.
Operating parameters and conditions of expLoatation
The pump is designed to pump clean, chemically aggressive-free water, free of fibrous suspended solids and with limited sand content in accordance with the manufacturer's recommendations. The range of permissible medium temperature covers typical operating conditions for cold water in domestic and municipal applications. The maximum immersion depth and maximum operating pressure of the set meet the requirements of standard well installations. The pump can operate in both automatic and manual modes, depending on the control system used.
| Parameter | Unit | Value (SQE 5-70, 96510168) |
|---|---|---|
| Product type | - | 3" submersible pump with frequency converter |
| Full name | - | Grundfos SQE 5-70, 1x230 V, 50 Hz, 96510168 |
| Catalog number | - | 96510168 |
| Series | - | SQE 5 |
| Pump type | - | Multistage submersible pump |
| Pump diameter | inch | 3" |
| Supply type | - | Single-phase |
| Supply voltage | V | 1x230 |
| Supply frequency | Hz | 50 |
| Built-in frequency converter | - | Yes |
| Speed control | - | Yes, electronic |
| Constant pressure function | - | Yes, in cooperation with a suitable controller |
| Hydraulic system | - | Multi-stage with floating impellers |
| Maximum lifting height (class) | m | Approximately 70 m water column (according to the 5-70 designation) |
| Application | - | Water supply, pressure boosting, deep water intakes, drilled wells |
| Medium | - | Pure water, domestic water |
| Temperature of the medium | °C | Range for typical cold water applications according to manufacturer's specifications |
| Maximum sand content | - | In accordance with SQE series approvals (according to manufacturer's data) |
| Maximum immersion depth | - | In accordance with the guidelines for the SQE series (according to the manufacturer's data) |
| Mounting position | - | Vertical, in boreholes and tanks |
| Wet part material | - | Stainless steel and corrosion-resistant materials |
| Intended for drinking water | - | Yes, depending on version and local requirements |
| Motor | - | Submersible single-phase, water-cooled motor |
| Operating mode | - | Continuous operation within the permissible range of characteristics |
| Start-up | - | Soft start |
| Dry-running protection | - | Yes, integrated |
| Overload protection | - | Yes, electronic |
| Protection against under/over voltage | - | Yes |
| Overvoltage protection | - | Yes (built-in protection features) |
| Control | - | Possible cooperation with Grundfos control units (e.g. to maintain constant pressure) |
| Application class | - | Domestic, agricultural, small municipal and industrial installations |
| Noise level | - | Low, typical of submersible motor pumps |
| Maintenance | - | Low maintenance requirements with proper expLoatation |
The Grundfos SQE 5-70 is a compLete solution for stable water supply, combining the compact design of a submersible pump with advanced control electronics. Integrated protection and control functions ensure long-lasting, efficient and safe operation in demanding well installations.
FAQ (customer)
- Q: For what type of well can I use the Grundfos SQE 5-70?
A: The SQE 5-70 is designed for narrow 3" boreholes and typical drilled wells used for domestic water suppLy and irrigation. - Q: Does this pump keep water pressure constant in my house?
A: Yes, when combined with the appropriate Grundfos controller, the integrated frequency converter allows the pump to maintain constant pressure despite varying water demand. - Q: Can the pump run dry if the water level drops?
A: The SQE series includes dry-running protection that stops the pump if the water level is too low, helping prevent damage. - Q: Is the SQE 5-70 suitable for drinking water appLications?
A: The wetted components are made of stainless steel and approved materials, making the pump suitable for potable water where local regulations and certifications are met. - Q: What kind of maintenance does this pump require?
A: Under normal operating conditions the pump requires minimal maintenance, primarily periodic inspection of installation, electrical connections, and system components. - Q: Can I use this pump for garden irrigation?
A: Yes, the SQE 5-70 is well suited for garden and lawn irrigation systems, especially where stable pressure is important.
FAQ (expert)
- Q: How is constant pressure control impLemented in the SQE 5-70 system?
A: Constant pressure is achieved by the integrated VFD in the pump motor, which adjusts speed based on feedback from a pressure transducer via a Grundfos control unit, modulating frequency to maintain the setpoint. - Q: What are the typical limits for sand content for the SQE series?
A: The SQE line is designed for limited sand content typically in the range specified by Grundfos (e.g., up to tens of g/m³); exceeding this accelerates wear on floating impellers. - Q: Which protection features are built into the pump electronics?
A: Integrated electronics provide dry-running protection, overload protection, over- and undervoltage monitoring, and protection against locked rotor and excessive temperature. - Q: How does soft start affect system design?
A: Soft start reduces inrush current and water hammer, allowing smaller starting current demands on the electrical system and lower transient stress on pipes and fittings. - Q: What installation orientation is recommended in deep-well appLications?
A: The pump is intended for vertical installation fully submerged in the water column, with sufficient clearance above the well bottom to avoid excessive intake of sediment. - Q: Are there specific controller options recommended for the SQE 5-70?
A: Grundfos controllers from the SQE family (such as CU-type constant-pressure units) are recommended to fully utilize the built-in frequency converter and monitoring capabilities.
Reviews
- The SQE 5-70 has provided stable pressure for a single-family home with no noticeable fluctuations during peak usage.
- Installers appreciate the integrated frequency converter, which reduces the need for external drives and simpLifies wiring.
- Users report low noise levels since the pump is fully submerged and equipped with soft-start functionality.
- Several long-term installations show high reliability with minimal maintenance apart from routine checks.
- Homeowners value the dry-running protection, especially in shallow wells that experience seasonal level changes.
- HVAC and pLumbing professionals note that constant pressure improves comfort and protects fixtures from pressure spikes.
- The compact 3" design allows retrofits in existing narrow wells where larger pumps would not fit.
- Energy consumption is considered favorable compared to fixed-speed submersible pumps in variable-demand systems.
- Some users highlight the need for correct controller setup to fully benefit from constant-pressure functionality.
- Overall satisfaction is high among both domestic and light-commercial users relying on the SQE 5-70 as their primary water suppLy pump.