3SR 1/21 - 0.50 HP three-phase submersible electric pump
Flow rate up to 30 l/min (1.8 m³/h). Head up to 90 meters. 0.37 kW (0.50 HP) motor.
Delivery Options
| Carrier | Description | Estimated Delivery | |
|---|---|---|---|
![]() | Mail Boxes - 2 giorni | This courier delivers within 48 hours from the moment we entrust the products to him. | Thursday 22 October - Friday 23 October |
![]() | Poste Italiane - 2 giorni Italia | This courier delivers within 24/48 hours from the moment we entrust them with the products. | Thursday 22 October - Friday 23 October |
![]() | Poste Italiane - 3 giorni punto di ritiro | This courier delivers within 24/72 hours from the moment we entrust them with the products. | Thursday 22 October |

Carrier: Mail Boxes - 2 giorni
Description: This courier delivers within 48 hours from the moment we entrust the products to him.
Estimated delivery:
Thursday 22 October - Friday 23 October

Carrier: Poste Italiane - 2 giorni Italia
Description: This courier delivers within 24/48 hours from the moment we entrust them with the products.
Estimated delivery:
Thursday 22 October - Friday 23 October

Carrier: Poste Italiane - 3 giorni punto di ritiro
Description: This courier delivers within 24/72 hours from the moment we entrust them with the products.
Estimated delivery:
Thursday 22 October




The 3SR 1/21 submersible electric pump from the 3SR series by Pedrollo is recommended for domestic and civil installations.
It can pump clean water with sand content up to 150 grams per cubic meter.
Collation can be carried out, using a special cable, up to 100 metres below the water level, exclusively vertically.
Compact and lightweight, the 3SR 1/21 can be easily installed in 3-inch or larger wells.
The use of stainless steel makes the electric pump extremely solid and resistant.
- Jobs
- water supply, pressurization systems, irrigation
- Motor connection
- THREE-PHASE
- Power (Kw)
- 0.37
- Power (HP)
- 0.50
- Current consumption at 400V (A)
- 1.5
- Pump body
- AISI 304 stainless steel
- Impeller
- Delrin
- Number of impellers
- 21
- Pump shaft
- AISI 304 stainless steel
- Check valve
- Yes
- Minimum flow rate (l./min.)
- 5
- Max. flow rate (l./min.)
- 30
- Min. head (m.)
- 24
- Max. head (m.)
- 90
- Max. liquid temperature (°C)
- +35°C
- Degree of protection
- IP 68
- Delivery mouth
- 1"
- Height (cm)
- 90.5
- External diameter (cm)
- 7.6
- Weight (Kg)
- 9.2
- Warranty (years)
- 2
Use and formulation of products
- Jobs
- water supply, pressurization systems, irrigation
Engine and mechanical performance
- Motor connection
- THREE-PHASE
- Power (Kw)
- 0.37
- Power (HP)
- 0.50
- Current consumption at 400V (A)
- 1.5
Pump components and construction
- Pump body
- AISI 304 stainless steel
- Impeller
- Delrin
- Number of impellers
- 21
- Pump shaft
- AISI 304 stainless steel
- Check valve
- Yes
Hydraulic performance and filtration
- Minimum flow rate (l./min.)
- 5
- Max. flow rate (l./min.)
- 30
- Min. head (m.)
- 24
- Max. head (m.)
- 90
Liquids and pumping conditions
- Max. liquid temperature (°C)
- +35°C
Safety and protection
- Degree of protection
- IP 68
Installation and connections
- Delivery mouth
- 1"
Dimensions and weight
- Height (cm)
- 90.5
- External diameter (cm)
- 7.6
- Weight (Kg)
- 9.2
Packaging, maintenance, and warranty
- Warranty (years)
- 2
|
|
|
|
|
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

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 1/21 - 0.50 HP three-phase submersible electric pumpThis product Flow rate up to 30 l/min (1.8 m³/h). Head up to 90 meters. 0.37 kW (0.50 HP) motor. | |
|---|---|
| Price | Price €674.66 -42% €391.30 |
| Jobs | Jobs water supply, pressurization systems, irrigation |
| Motor connection | Motor connection THREE-PHASE |
| Power (Kw) | Power (Kw) 0.37 |
| Power (HP) | Power (HP) 0.50 |
| Current consumption at 400V (A) | Current consumption at 400V (A) 1.5 |
| Pump body | Pump body AISI 304 stainless steel |
| Impeller | Impeller Delrin |
| Number of impellers | Number of impellers 21 |
| Pump shaft | Pump shaft AISI 304 stainless steel |
| Check valve | Check valve Yes |
| Minimum flow rate (l./min.) | Minimum flow rate (l./min.) 5 |
| Max. flow rate (l./min.) | Max. flow rate (l./min.) 30 |
| Min. head (m.) | Min. head (m.) 24 |
| Max. head (m.) | Max. head (m.) 90 |
| Max. liquid temperature (°C) | Max. liquid temperature (°C) +35°C |
| Degree of protection | Degree of protection IP 68 |
| Delivery mouth | Delivery mouth 1" |
| Height (cm) | Height (cm) 90.5 |
| External diameter (cm) | External diameter (cm) 7.6 |
| Weight (Kg) | Weight (Kg) 9.2 |
| Warranty (years) | Warranty (years) 2 |
