4HR18/4 - HYD - 420 litre submersible pump
HYDRAULIC PART. WITHOUT MOTOR.
Flow rate up to 420 l/min (1.8 m³/h). Head up to 23.4 metres.




The Pedrollo 4HR 18/4 HYD pump consists of only the impeller part, without the motor.
The 4HR 18/4 HYD can be fitted to any 1.5 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 420 litres per minute with a head from 5 to 23.4 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, for washing systems, for pressure raising and for fire-fighting systems.
Original spare part for 4HR18/4.
- Power (HP)
- 1.5
- Delivery mouth
- 2"
- Pump body
- AISI 304 stainless steel
- Impeller
- AISI 304 stainless steel
- Number of impellers
- 4
- Pump shaft
- AISI 304 stainless steel
- Min. flow rate (l./min.)
- 50
- Max. flow rate (l./min.)
- 420
- Min. head (m.)
- 5
- Max. head (m.)
- 23.4
- Height (cm)
- 44.1
- Weight (Kg)
- 7.5
- Warranty (years)
- 2
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Power (HP) | Power (HP) 1.5 | Power (HP) 2 | 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 AISI 304 stainless steel | Impeller AISI 304 stainless steel | Impeller AISI 304 stainless steel | Impeller AISI 304 stainless steel |
Number of impellers | Number of impellers 4 | Number of impellers 6 | Number of impellers 6 | Number of impellers 12 |
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.) 420 | Max. flow rate (l./min.) 420 | Max. flow rate (l./min.) 420 | Max. flow rate (l./min.) 420 |
Min. head (m.) | Min. head (m.) 5 | Min. head (m.) 7 | Min. head (m.) 11 | Min. head (m.) 14.5 |
Max. head (m.) | Max. head (m.) 23.4 | Max. head (m.) 35 | Max. head (m.) 52.5 | Max. head (m.) 70 |
Height (cm) | Height (cm) 44.1 | Height (cm) 58.7 | Height (cm) 80.6 | Height (cm) 102.5 |
Weight (Kg) | Weight (Kg) 7.5 | Weight (Kg) 10.2 | Weight (Kg) 14.1 | Weight (Kg) 18 |
Warranty (years) | Warranty (years) 2 | Warranty (years) 2 | Warranty (years) 2 | Warranty (years) 2 |