NGA 1A - Centrifugal electric pump with three-phase open impeller
Flow rate up to 350 l / min (21 m³ / h). Head up to 19.5 m. 0.75 Kw (1 HP) motor.



The PEDROLLO pumps of the NGA line are recommended for pumping water and liquids that are chemically non-aggressive to the materials making up the pump.
The PEDROLLO NGA 1A has a flow rate that varies from 50 to 350 liters per minute with a prevalence from 19.5 to 6 meters.
The constructive solution of the open impeller allows to pump fluids relatively full of impurities without danger of clogging of the impeller. For this characteristic, the NGA series pumps are used in industry, in the transfer of water from canals, rivers, tanks, basins, etc.
The installation must be carried out in closed places or in any case protected from bad weather.
- Motor connection
- THREE-PHASE
- Motor power (HP)
- 1
- Absorption at 230V (A)
- 3.7
- Absorption at 400V (A)
- 2.1
- Suction mouth
- 1 "1/2
- Delivery port
- 1 "1/2
- Impeller
- AISI 304 stainless steel
- Number of impellers
- 1
- Motor shaft
- AISI 431 stainless steel
- Check valve
- no
- Degree of protection
- IP 44
- Flow rate min. (l./min.)
- 50
- Max flow (l./min.)
- 350
- Min head (m.)
- 6
- Max head (m.)
- 20
- Employments
- washing systems, water supply
- Liquid temperature max. (° C)
- +90°C
- Motor voltage
- 400 V
- Height (cm)
- 22.7
- Width (cm)
- 29.7
- Depth (cm)
- 19
- Weight kg)
- 12.5
- Guarantee
- Two years
Compare with Similar Products
![]() NGA 1A - Centrifugal electric pump with three-phase open impellerThis product Flow rate up to 350 l / min (21 m³ / h). Head up to 19.5 m. 0.75 Kw (1 HP) motor. | ![]() NGA 1B - Centrifugal electric pump with three-phase open impellerFlow rate up to 325 l / min (19.5 m³ / h). Head up to 17 m. 0.55 Kw (0.75 HP) motor. | ![]() NGA 2A - Centrifugal electric pump with three-phase open impellerFlow rate up to 900 l / min (54 m³ / h). Head up to 19 m. 2.2 Kw (3 HP) engine. | ![]() NGA 1A-PRO - Electric pump with three-phase open impellerFlow rate up to 350 l / min (21 m³ / h). Head up to 19.5 m. 0.75 Kw (1 HP) motor. | |
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Brand | Brand Pedrollo | Brand Pedrollo | Brand Pedrollo | Brand Pedrollo |
Motor connection | Motor connection THREE-PHASE | Motor connection THREE-PHASE | Motor connection THREE-PHASE | Motor connection THREE-PHASE |
Motor power (HP) | Motor power (HP) 1 | Motor power (HP) 0.75 | Motor power (HP) 3 | Motor power (HP) 1 |
Absorption at 230V (A) | Absorption at 230V (A) 3.7 | Absorption at 230V (A) 3.3 | Absorption at 230V (A) -- | Absorption at 230V (A) -- |
Absorption at 400V (A) | Absorption at 400V (A) 2.1 | Absorption at 400V (A) 1.9 | Absorption at 400V (A) -- | Absorption at 400V (A) -- |
Suction mouth | Suction mouth 1 "1/2 | Suction mouth 1 "1/2 | Suction mouth 2" | Suction mouth 1 "1/2 |
Delivery port | Delivery port 1 "1/2 | Delivery port 1 "1/2 | Delivery port 2" | Delivery port 1 "1/2 |
Body Pump | Body Pump -- | Body Pump Cast iron | Body Pump Cast iron | Body Pump AISI 316 stainless steel |
Impeller | Impeller AISI 304 stainless steel | Impeller AISI 316 stainless steel | Impeller AISI 316 stainless steel | Impeller AISI 316 stainless steel |
Number of impellers | Number of impellers 1 | Number of impellers 1 | Number of impellers 1 | Number of impellers 1 |
Motor shaft | Motor shaft AISI 431 stainless steel | Motor shaft AISI 431 stainless steel | Motor shaft AISI 431 stainless steel | Motor shaft 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 |
Flow rate min. (l./min.) | Flow rate min. (l./min.) 50 | Flow rate min. (l./min.) 50 | Flow rate min. (l./min.) 100 | Flow rate min. (l./min.) 50 |
Max flow (l./min.) | Max flow (l./min.) 350 | Max flow (l./min.) 300 | Max flow (l./min.) 900 | Max flow (l./min.) 350 |
Min head (m.) | Min head (m.) 6 | Min head (m.) 8 | Min head (m.) 8.5 | Min head (m.) 6 |
Max head (m.) | Max head (m.) 20 | Max head (m.) 18 | Max head (m.) 19 | Max head (m.) 20 |
Employments | Employments washing systems, water supply | Employments washing systems, water supply | Employments water supply, washing systems | Employments water treatment plants, water supply, washing systems, cooling systems |
Liquid temperature max. (° C) | Liquid temperature max. (° C) +90°C | Liquid temperature max. (° C) +90°C | Liquid temperature max. (° C) +90°C | Liquid temperature max. (° C) +90°C |
Motor voltage | Motor voltage 400 V | Motor voltage 400 V | Motor voltage 400 V | Motor voltage 400 V, 230 V |
Height (cm) | Height (cm) 22.7 | Height (cm) 22.7 | Height (cm) -- | Height (cm) 22.65 |
Width (cm) | Width (cm) 29.7 | Width (cm) 29.7 | Width (cm) -- | Width (cm) 29.9 |
Depth (cm) | Depth (cm) 19 | Depth (cm) 19 | Depth (cm) -- | Depth (cm) 19 |
Weight kg) | Weight kg) 12.5 | Weight kg) 12.5 | Weight kg) -- | Weight kg) 12.6 |
Guarantee | Guarantee Two years | Guarantee Two years | Guarantee Two years | Guarantee Two years |
NGA models and performance
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Construction data of the NGA 1B-1A

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 | Cast iron GJL 200 EN 1561 |
2.1 - Seal holder cover | EN 1.4301 stainless steel (AISI 304) |
3.0 - Impeller | EN 14401 stainless steel (AISI 316) |
4.0 - Pump shaft | EN 1.4057 stainless steel (AISI 431) |
6.0 - Motor holder | Aluminum EN-AB 46100 |
6.1 - Engine cover | Aluminum EN-AB 46100 |
7.0 - Lantern | Aluminum EN-AB 46100 |