3" series
Grundfos SQ 1
3" submersible pumps with a permanent-magnet motor
HydroCraft partnerGrundfos SQ 1 is a compact 3" multistage submersible pump with a built-in permanent-magnet motor. It is designed for domestic water supply from boreholes with a low flow rate and a high head — up to 151 m. The pump features floating impellers with individual tungsten carbide/ceramic bearings, soft start and built-in protection against dry running, over-voltage, under-voltage, overload and overheating. The body is made of polyamide and AISI 304 stainless steel, and the motor is single-phase with a permanent-magnet rotor, delivering optimal efficiency across a wide operating range.
- series
- 9
- models in the tables
- 9
Price and delivery time on request. Working hours: Mon–Fri, 8:30–17:00
Features
What Grundfos SQ 1 offers
- Floating impellers with tungsten carbide/ceramic bearings
- Built-in permanent-magnet motor (MS3) for high efficiency
- Soft start
- Dry-running protection
- Over-voltage and under-voltage protection
- Overload and overheating protection
- Compact 3" design (Ø74 mm, min. borehole Ø76 mm)
- IP68 protection, insulation class F
Applications
Where it is used
- Domestic water supply from wells
- Transferring liquids in tanks
- Irrigation systems
- Environmental applications
Technical data
Grundfos SQ 1 specifications
Series
| Series | Flow rate | Stages | Power |
|---|---|---|---|
| SQ 1-35 | 1 m³/h | – | 0.70 kW |
| SQ 1-50 | 1 m³/h | – | 0.70 kW |
| SQ 1-65 | 1 m³/h | – | 0.70 kW |
| SQ 1-80 | 1 m³/h | – | 1.15 kW |
| SQ 1-95 | 1 m³/h | – | 1.15 kW |
| SQ 1-110 | 1 m³/h | – | 1.15 kW |
| SQ 1-125 | 1 m³/h | – | 1.68 kW |
| SQ 1-140 | 1 m³/h | – | 1.68 kW |
| SQ 1-155 | 1 m³/h | – | 1.85 kW |
Performance
SQ 1 — 1~230V 50Hz
9 models| Parameters | Q (m³/h) → H (m) | |||||
|---|---|---|---|---|---|---|
| Model | HP | kW | A 1~230V | Ø mm | Connection | 1 |
| SQ 1-35 | 0.94 | 0.70 | 5.2 | 74 | Rp 1 1/4" | 34 |
| SQ 1-50 | 0.94 | 0.70 | 5.2 | 74 | Rp 1 1/4" | 53 |
| SQ 1-65 | 0.94 | 0.70 | 5.2 | 74 | Rp 1 1/4" | 72 |
| SQ 1-80 | 1.54 | 1.15 | 8.4 | 74 | Rp 1 1/4" | 91 |
| SQ 1-95 | 1.54 | 1.15 | 8.4 | 74 | Rp 1 1/4" | 111 |
| SQ 1-110 | 1.54 | 1.15 | 8.4 | 74 | Rp 1 1/4" | 127 |
| SQ 1-125 | 2.25 | 1.68 | 11.2 | 74 | Rp 1 1/4" | 135 |
| SQ 1-140 | 2.25 | 1.68 | 11.2 | 74 | Rp 1 1/4" | 143 |
| SQ 1-155 | 2.48 | 1.85 | 12.3 | 74 | Rp 1 1/4" | 151 |
H (m) is the head in metres at the corresponding flow rate Q (m³/h). For full performance curves, get in touch.
Submersible Pumps
More models in this category
Enquiry about Grundfos SQ 1
Tell us about the site and we will confirm the model, the price and the delivery time. Installation and service are done by our own teams.
- Help choosingValchan Georgiev, 0888 101 280
- Phone0886 834 7170888 654 040
- Emailoffice@hydrocraft.bg
- Working hoursMon–Fri, 8:30–17:00
- OfficeSofia, Orlandovtsi, 1 Mara Buneva St.