4SR 15/8 - N-HYD - 350 litre submersible pump
HYDRAULIC PART. WITHOUT MOTOR.
Flow rate up to 350 l/min (21 m³/h). Head up to 44.5 metres.




The Pedrollo 4SR 15/8 N-HYD pump consists of only the impeller part, without the motor.
The 4SR 15/8 N-HYD can be mounted on any 2 HP engine.
Recommended for pumping clean water with sand content not exceeding 150 grams per cubic meter.
It has a flow rate that varies from 50 to 350 litres per minute with a head from 7.5 to 44.5 metres.
Due to their high performance and reliability, they are suitable for use in domestic, civil and industrial fields, 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.
Original spare part for 4SR15/8-N.
- Power (HP)
- 2
- Delivery mouth
- 2"
- Pump body
- AISI 304 stainless steel
- Impeller
- Noryl
- Number of impellers
- 8
- Pump shaft
- AISI 304 stainless steel
- Min. flow rate (l./min.)
- 50
- Max. flow rate (l./min.)
- 350
- Min. head (m.)
- 7.5
- Max. head (m.)
- 44.5
- Height (cm)
- 67.9
- External diameter (cm)
- 9.8
- Warranty (years)
- 2
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Power (HP) | Power (HP) 2 | Power (HP) 1.5 | Power (HP) 3 | Power (HP) 4 |
Delivery mouth | Delivery mouth 2" | Delivery mouth 2" | Delivery mouth 2" | Delivery mouth 2" |
Pump body | Pump body AISI 304 stainless steel | Pump body AISI 304 stainless steel | Pump body AISI 304 stainless steel | Pump body AISI 304 stainless steel |
Impeller | Impeller Noryl | Impeller Noryl | Impeller Noryl | Impeller Noryl |
Number of impellers | Number of impellers 8 | Number of impellers 6 | Number of impellers 12 | Number of impellers 16 |
Pump shaft | Pump shaft AISI 304 stainless steel | Pump shaft AISI 304 stainless steel | Pump shaft AISI 304 stainless steel | Pump shaft AISI 304 stainless steel |
Min. flow rate (l./min.) | Min. flow rate (l./min.) 50 | Min. flow rate (l./min.) 50 | Min. flow rate (l./min.) 50 | Min. flow rate (l./min.) 50 |
Max. flow rate (l./min.) | Max. flow rate (l./min.) 350 | Max. flow rate (l./min.) 350 | Max. flow rate (l./min.) 350 | Max. flow rate (l./min.) 350 |
Min. head (m.) | Min. head (m.) 7.5 | Min. head (m.) 6 | Min. head (m.) 11.5 | Min. head (m.) 15.5 |
Max. head (m.) | Max. head (m.) 44.5 | Max. head (m.) 33.5 | Max. head (m.) 66.5 | Max. head (m.) 89 |
Height (cm) | Height (cm) 67.9 | Height (cm) 55.3 | Height (cm) 92.9 | Height (cm) 117.9 |
External diameter (cm) | External diameter (cm) 9.8 | External diameter (cm) 9.8 | External diameter (cm) 9.8 | External diameter (cm) 9.8 |
Warranty (years) | Warranty (years) 2 | Warranty (years) 2 | Warranty (years) 2 | Warranty (years) 2 |