3SR 2/21 - 0.75 HP three-phase submersible electric pump
Flow rate up to 50 l/min (2.7 m³/h). Head up to 84 meters. 0.55 Kw (0.75 HP) motor.
The Pedrollo 3SR 2/21 submersible electric pump has a flow rate that varies from 10 to 50 litres per minute with a head from 23 to 84 metres.
Due to its high performance and reliability, it is suitable for domestic, civil and industrial use, for the distribution of water in combination with pressure tanks, for irrigation of vegetable gardens and gardens, for washing systems, for pressure raising or for fire-fighting systems.
The 3SR 2/21 is a 3-inch electric pump with a rewindable water-bath motor.
It allows economic savings thanks to the high efficiency and the consequent reduced electricity consumption.
Thanks to its compactness and lightness, the 3SR 2/21 electric pump can be easily installed in wells of 3 inches or more.
The hydraulic components, coupled with a high-efficiency electric motor, make the 3SR 2/21 electric pump extremely efficient in the 3-inch category.
The construction of the pump allows the pumping of water with sand content up to 150 g/m3.
The product comes with a special power cable with a length of 1.5 meters.
- Motor connection
- THREE-PHASE
- Power (Kw)
- 0.55
- Power (HP)
- 0.75
- Absorption at 400V (A)
- 1.9
- Delivery port
- 1 "
- Body Pump
- AISI 304 stainless steel
- Impeller
- Delrin
- Number of impellers
- 21
- Pump shaft
- AISI 304 stainless steel
- Check valve
- Yes
- Degree of protection
- IP 68
- Flow rate min. (l./min.)
- 10
- Max flow (l./min.)
- 45
- Min head (m.)
- 33
- Max head (m.)
- 87
- Cable length (m)
- 1.5
- Employments
- water supply, pressurization systems, irrigation
- Liquid temperature max. (° C)
- 35
- Height (cm)
- 10.02
- Outside diameter (cm)
- 7.6
- Weight kg)
- 10
- Guarantee
- 2
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Bearings
| Pump bearing - fixed part | Anti-friction polymer |
| Pump bearing - rotating part | Sintered AISI 316 steel with ceramic coating |
Tree holding
Materials
| 1.3 - Delivery body | Stainless steel EN 1.4301 (AISI 304) |
| 3.0 - Impeller | POM acetal resin |
| 4.0 - Pump shaft | Stainless steel EN 1.4301 (AISI 304) |
| 4.2 - Towing joint | Stainless steel EN 1.4404 (AISI 316L) |
| 5.1 - Diffuser | Reinforced technopolymer |
| 5.3 - Diaphragm/Diffuser Cover | Reinforced technopolymer |
| 7.0 - Lantern | Stainless steel EN 1.4301 (AISI 304) |
| 7.1 - Check Valve | Stainless steel EN 1.4301 (AISI 304) |
| 7.2 - Pump shirt | Stainless steel EN 1.4301 (AISI 304) |
| 7.3 - Cable cover | Stainless steel EN 1.4301 (AISI 304) |
| 8.0 - Suction Grid/Filter | Stainless steel EN 1.4301 (AISI 304) |
Compare with Similar Products
 3SR 2/21 - 0.75 HP three-phase submersible electric pumpThis product Flow rate up to 50 l/min (2.7 m³/h). Head up to 84 meters. 0.55 Kw (0.75 HP) motor. |  3SR 2/14 - 0.50 HP three-phase submersible electric pumpFlow rate up to 50 l/min (2.7 m³/h). Head up to 56 meters. 0.37 Kw (0.50 HP) motor. |  3SR 2/28 - 1 HP three-phase submersible electric pumpFlow rate up to 45 l/min (2.7 m³/h). Head up to 112 metres. 0.75 Kw (1 HP) motor. |  3SR 2/41 - 1.5 HP three-phase submersible electric pumpFlow rate up to 50 l/min (2.7 m³/h). Head up to 164 meters. 1.1 Kw (1.5 HP) motor. | |
|---|---|---|---|---|
| Motor connection | Motor connection THREE-PHASE | Motor connection THREE-PHASE | Motor connection THREE-PHASE | Motor connection THREE-PHASE |
| Power (Kw) | Power (Kw) 0.55 | Power (Kw) 0.37 | Power (Kw) 0.75 | Power (Kw) 1.1 |
| Power (HP) | Power (HP) 0.75 | Power (HP) 0.50 | Power (HP) 1 | Power (HP) 1.5 |
| Absorption at 400V (A) | Absorption at 400V (A) 1.9 | Absorption at 400V (A) 1.5 | Absorption at 400V (A) 2.6 | Absorption at 400V (A) 3.5 |
| Delivery port | Delivery port 1 " | Delivery port 1 " | Delivery port 1 " | Delivery port 1 " |
| Body Pump | Body Pump AISI 304 stainless steel | Body Pump AISI 304 stainless steel | Body Pump AISI 304 stainless steel | Body Pump AISI 304 stainless steel |
| Impeller | Impeller Delrin | Impeller Delrin | Impeller Delrin | Impeller Delrin |
| Number of impellers | Number of impellers 21 | Number of impellers 14 | Number of impellers 28 | Number of impellers 41 |
| Pump shaft | Pump shaft AISI 304 stainless steel | Pump shaft -- | Pump shaft AISI 304 stainless steel | Pump shaft AISI 304 stainless steel |
| Check valve | Check valve Yes | Check valve -- | Check valve Yes | Check valve Yes |
| Degree of protection | Degree of protection IP 68 | Degree of protection -- | Degree of protection IP 68 | Degree of protection IP 68 |
| Flow rate min. (l./min.) | Flow rate min. (l./min.) 10 | Flow rate min. (l./min.) 10 | Flow rate min. (l./min.) 10 | Flow rate min. (l./min.) 10 |
| Max flow (l./min.) | Max flow (l./min.) 45 | Max flow (l./min.) 45 | Max flow (l./min.) 45 | Max flow (l./min.) 45 |
| Min head (m.) | Min head (m.) 33 | Min head (m.) 22 | Min head (m.) 44 | Min head (m.) 64 |
| Max head (m.) | Max head (m.) 87 | Max head (m.) 58 | Max head (m.) 116 | Max head (m.) 169 |
| Cable length (m) | Cable length (m) 1.5 | Cable length (m) -- | Cable length (m) -- | Cable length (m) -- |
| Employments | Employments water supply, pressurization systems, irrigation | Employments irrigation, pressurization systems, water supply | Employments water supply, pressurization systems, irrigation | Employments water supply, pressurization systems, irrigation |
| Liquid temperature max. (° C) | Liquid temperature max. (° C) 35 | Liquid temperature max. (° C) 35 | Liquid temperature max. (° C) 35 | Liquid temperature max. (° C) 35 |
| Height (cm) | Height (cm) 10.02 | Height (cm) 82.4 | Height (cm) 11.79 | Height (cm) 3.42pm |
| Outside diameter (cm) | Outside diameter (cm) 7.6 | Outside diameter (cm) 0.76 | Outside diameter (cm) 7.6 | Outside diameter (cm) 7.6 |
| Weight kg) | Weight kg) 10 | Weight kg) 8.9 | Weight kg) 11.3 | Weight kg) 13.7 |
| Guarantee | Guarantee 2 | Guarantee 2 | Guarantee 2 | Guarantee 2 |