CPm 158-ST4 - Single-phase 1 HP stainless steel centrifugal electric pump
In AISI 304 stainless steel. Flow rate up to 120 l/min (7.2 m³/h). Head up to 36.5 m. 0.75 Kw (1 HP) motor.




It is recommended for pumping clean water and liquids that are not chemically aggressive towards the materials from which the pump is made.
Due to its construction features, this centrifugal pump is recommended for use in the domestic, agricultural and industrial sectors.
All components in contact with the pumped liquid are made of AISI 304 stainless steel to guarantee total hygiene and maximum resistance to corrosion.
Installation must be carried out indoors or in any case protected from the elements.
- Motor connection
- SINGLE PHASE
- Power (HP)
- 1
- Absorption at 230V (A)
- 6
- Capacitor
- 20 µF450 VL
- Suction mouth
- 1 "1/4
- Delivery mouth
- 1 "
- Pump body
- AISI 304 stainless steel
- Impeller
- AISI 304 stainless steel
- Number of impellers
- 1
- Crankshaft
- AISI 431 stainless steel
- Check valve
- No
- Degree of protection
- IP 44
- Min. flow rate (l./min.)
- 10
- Max. flow rate (l./min.)
- 120
- Min. head (m.)
- 19
- Max. head (m.)
- 36.5
- Jobs
- water supply, irrigation, cooling systems, air conditioning systems, washing systems, water treatment plants
- Max. liquid temperature (°C)
- +90°C
- Motor voltage
- 230 V
- Height (cm)
- 21.9
- Width (cm)
- 29.6
- Depth (cm)
- 22.1
- Weight (Kg)
- 10.8
- Warranty (years)
- 2
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Bearings
Pump side motor bearing | 6203 ZZ |
Opposite side motor bearing | 6203 ZZ |
Shaft seal
Type of seal | Single Mechanical Seal |
Pump side model | AR-14 |
LP diameter | 14 |
Fixed ring LP | Ceramic |
Rotating ring LP | Graphite |
LP elastomer | NBR |
Mat
1.0 - Pump Body | EN 1.4301 stainless steel (AISI 304) |
2.1 - Seal holder cover | EN 1.4301 stainless steel (AISI 304) |
3.0 - Impeller | EN 1.4301 stainless steel (AISI 304) |
4.0 - Pump shaft | EN 1.4057 stainless steel (AISI 431) |
5.2 - Shim Ring | PTFE |
6.0 - Motor holder | Aluminum EN-AB 46100 |
6.1 - Engine cover | Aluminum EN-AB 46100 |
7.0 - Lantern | Aluminum EN-AB 46100 |
Compare with Similar Products
![]() CPm 158-ST4 - Single-phase 1 HP stainless steel centrifugal electric pumpThis product In AISI 304 stainless steel. Flow rate up to 120 l/min (7.2 m³/h). Head up to 36.5 m. 0.75 Kw (1 HP) motor. | ![]() CPm 150-ST4 - Single-phase 1 HP stainless steel centrifugal electric pumpIn AISI 304 stainless steel. Flow rate up to 150 l/min (9 m³/h). Head up to 32 m. 0.75 Kw (1 HP) motor. | ![]() CPm 170-ST4 - Single-phase stainless steel centrifugal electric pump 1.5 HPIn AISI 304 stainless steel. Flow rate up to 140 l/min (8.4 m³/h). Head up to 41 m. 1.1 Kw (1.5 HP) motor. | ![]() CPm 170M-ST4 - 1.5 HP single-phase stainless steel centrifugal electric pumpIn AISI 304 stainless steel. Flow rate up to 160 l/min (9.6 m³/h). Head up to 36.5 m. 1.1 Kw (1.5 HP) motor. | |
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Motor connection | Motor connection SINGLE PHASE | Motor connection SINGLE PHASE | Motor connection SINGLE PHASE | Motor connection SINGLE PHASE |
Power (Kw) | Power (Kw) -- | Power (Kw) -- | Power (Kw) 1.1 | Power (Kw) 1.1 |
Power (HP) | Power (HP) 1 | Power (HP) 1 | Power (HP) 1.5 | Power (HP) 1.5 |
Absorption at 230V (A) | Absorption at 230V (A) 6 | Absorption at 230V (A) 6 | Absorption at 230V (A) 7.8 | Absorption at 230V (A) 7.8 |
Capacitor | Capacitor 20 µF450 VL | Capacitor 20 µF450 VL | Capacitor 25 µF450 VL | Capacitor 25 µF450 VL |
Suction mouth | Suction mouth 1 "1/4 | Suction mouth 1 "1/4 | Suction mouth 1 "1/4 | Suction mouth 1 "1/4 |
Delivery mouth | Delivery mouth 1 " | Delivery mouth 1 " | Delivery mouth 1 " | Delivery mouth 1 " |
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 1 | Number of impellers 1 | Number of impellers 1 | Number of impellers 1 |
Crankshaft | Crankshaft AISI 431 stainless steel | Crankshaft AISI 431 stainless steel | Crankshaft AISI 431 stainless steel | Crankshaft AISI 316 stainless steel |
Check valve | Check valve No | Check valve No | Check valve No | Check valve No |
Degree of protection | Degree of protection IP 44 | Degree of protection IP 44 | Degree of protection IP 44 | Degree of protection IP 44 |
Min. flow rate (l./min.) | Min. flow rate (l./min.) 10 | Min. flow rate (l./min.) 20 | Min. flow rate (l./min.) 10 | Min. flow rate (l./min.) 10 |
Max. flow rate (l./min.) | Max. flow rate (l./min.) 120 | Max. flow rate (l./min.) 150 | Max. flow rate (l./min.) 140 | Max. flow rate (l./min.) 160 |
Min. head (m.) | Min. head (m.) 19 | Min. head (m.) 14 | Min. head (m.) 20 | Min. head (m.) 19 |
Max. head (m.) | Max. head (m.) 36.5 | Max. head (m.) 32 | Max. head (m.) 41 | Max. head (m.) 36.5 |
Jobs | Jobs water supply, irrigation, cooling systems, air conditioning systems, washing systems, water treatment plants | Jobs water supply, irrigation, cooling systems, air conditioning systems, washing systems, water treatment plants | Jobs water supply, irrigation, cooling systems, air conditioning systems, washing systems, water treatment plants | Jobs water supply, irrigation, cooling systems, air conditioning systems, washing systems, water treatment plants |
Max. liquid temperature (°C) | Max. liquid temperature (°C) +90°C | Max. liquid temperature (°C) 90 | Max. liquid temperature (°C) 90 | Max. liquid temperature (°C) 90 |
Motor voltage | Motor voltage 230 V | Motor voltage 230 V | Motor voltage -- | Motor voltage -- |
Height (cm) | Height (cm) 21.9 | Height (cm) 21.9 | Height (cm) 23.75 | Height (cm) 23.75 |
Width (cm) | Width (cm) 29.6 | Width (cm) 29.6 | Width (cm) 36.8 | Width (cm) 36.8 |
Depth (cm) | Depth (cm) 22.1 | Depth (cm) 22.1 | Depth (cm) 24.5 | Depth (cm) 24.5 |
Weight (Kg) | Weight (Kg) 10.8 | Weight (Kg) 10.8 | Weight (Kg) 14.5 | Weight (Kg) 14.5 |
Warranty (years) | Warranty (years) 2 | Warranty (years) 2 | Warranty (years) 2 | Warranty (years) 2 |