HT 3/9-PRO - 4 HP three-phase vertical multistage electric pump
Flow rate up to 90 l/min (5.4 m³/h). Head up to 146 m. 3 Kw (4 HP) motor.




The Pedrollo HT 3/9-PRO centrifugal electric pump is designed to guarantee excellent performance and solid construction despite its compact size.
Made entirely of stainless steel, the pump is robust and resistant.
The HT 3/9-PRO is made with a special multi-stage construction, the operating noise is particularly low.
Recommended for pumping clean water and liquids that are not chemically aggressive towards the materials from which the pump is made.
Ideal for civil, agricultural and industrial sectors. In particular, the HT 3/9-PRO is suitable for water distribution in combination with pressure tanks, for increasing pressure in the network, for fire-fighting systems, for washing systems and for irrigation.
It must be powered by a three-phase voltage, has a horsepower of 4 HP and the temperature of the liquid to be pumped ranges from -15 degrees centigrade up to 90.
The flow rate ranges from 5 to 90 metres and the head from 78 to 146 litres.
- Motor connection
- THREE-PHASE
- Power (Kw)
- 3
- Power (HP)
- 4
- Suction mouth
- 1 "
- Delivery mouth
- 1 "
- Pump body
- Cast iron
- Impeller
- AISI 304 stainless steel
- Number of impellers
- 9
- Check valve
- No
- Min. flow rate (l./min.)
- 5
- Max. flow rate (l./min.)
- 90
- Min. head (m.)
- 78
- Max. head (m.)
- 146
- Jobs
- fire prevention systems, washing systems, irrigation, pressurization systems, water supply
- Height (cm)
- 71.1
- Width (cm)
- 25.0
- Depth (cm)
- 25.7
- Weight (Kg)
- 46.2
- Warranty (years)
- 2
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Bearings
Pump side motor bearing | 6304 2RS-C3 |
Opposite side engine bearing | 6204 ZZ-C3E |
Tree holding
Type of seal | Single Mechanical Seal |
Shrinkage DN1=450 DN2=350 | FN-18 |
LP diameter | 18 |
LP fixed ring | Graphite |
LP rotating ring | Ceramic |
LP elastomer | NBR |
Materials
1.0 - Pump body | Stainless steel EN 1.4301 (AISI 304) |
2.0 - Lid | Stainless steel EN 1.4301 (AISI 304) |
3.0 - Impeller | Stainless steel EN 1.4301 (AISI 304) |
4.0 - Pump shaft | Stainless steel EN 1.4404 (AISI 316L) |
5.1 - Diffuser | Stainless steel EN 1.4301 (AISI 304) |
7.2 - Pump shirt | Stainless steel EN 1.4301 (AISI 304) |
Compare with Similar Products
![]() HT 3/9-PRO - 4 HP three-phase vertical multistage electric pumpThis product Flow rate up to 90 l/min (5.4 m³/h). Head up to 146 m. 3 Kw (4 HP) motor. | |
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Motor connection | Motor connection THREE-PHASE |
Power (Kw) | Power (Kw) 3 |
Power (HP) | Power (HP) 4 |
Suction mouth | Suction mouth 1 " |
Delivery mouth | Delivery mouth 1 " |
Pump body | Pump body Cast iron |
Impeller | Impeller AISI 304 stainless steel |
Number of impellers | Number of impellers 9 |
Check valve | Check valve No |
Min. flow rate (l./min.) | Min. flow rate (l./min.) 5 |
Max. flow rate (l./min.) | Max. flow rate (l./min.) 90 |
Min. head (m.) | Min. head (m.) 78 |
Max. head (m.) | Max. head (m.) 146 |
Jobs | Jobs fire prevention systems, washing systems, irrigation, pressurization systems, water supply |
Height (cm) | Height (cm) 71.1 |
Width (cm) | Width (cm) 25.0 |
Depth (cm) | Depth (cm) 25.7 |
Weight (Kg) | Weight (Kg) 46.2 |
Warranty (years) | Warranty (years) 2 |