Pedrollo NGAm1A open impeller water pump

Pedrollo NGAm1A is a powerful and efficient centrifugal electric pump with an open impeller, specifically engineered for transferring clean and moderately contaminated water, as well as non‐aggressive liquids. Its unique impeller design makes this model ideal for situations where clogging risk exists when handling liquids with suspended particles.

Operating Principle:
In the NGA series, the impeller is not enclosed by a front shroud as in standard designs. Instead, the rotating element (the rear disk with vanes) works against the pump casing, acting as a stationary ring. This configuration prevents blockages and ensures unobstructed liquid flow. Fluid enters the suction port, travels through the vane channel to gain kinetic and potential energy, then moves into the volute chamber and diffuser, where pressure stabilizes and head is boosted.

Purpose & Applications:
Thanks to its resistance to contaminated water, the NGAm1A pump is widely used in:
▪️ Agriculture — for irrigation and watering;
▪️ Industry — in wash‐down and parts‐cleaning stations;
▪️ Abstracting water from open sources: rivers, lakes, reservoirs;
▪️ Technical circulation and cooling systems;
▪️ Filling pools, tanks, and ponds.
The pump can handle non‐aggressive fluids with mechanical particulates, making it a versatile solution for demanding conditions.

Construction Features:
▪️ Pump casing: cast iron with GAS UNI ISO 228-1 universal threading;
▪️ Casing cover: AISI 304 stainless steel;
▪️ Impeller: abrasion‐resistant Noryl technopolymer;
▪️ Shaft: AISI 430F stainless steel;
▪️ Seal: ceramic and graphite mechanical seal for leak‐proof operation;
▪️ Motor: closed‐type, quiet asynchronous motor with air cooling, suited for continuous duty (S1);
▪️ Single‐phase versions: built‐in thermal protection;
▪️ Three‐phase versions: require external safety switch;
▪️ Insulation class B;
▪️ Protection rating IP44 — dust and splash protected.

Operating Parameters:
▪️ Fluid temperature: –10 °C to +90 °C;
▪️ Ambient temperature: –10 °C to +40 °C;
▪️ Maximum suction lift: up to 7 m;
▪️ Maximum system pressure: up to 6 bar;
▪️ Continuous duty (S1) — ideal for uninterrupted operation.

Installation & Protection:
Install the pump in dry, weather‐protected indoor areas shielded from dust and temperature extremes. Adhere to all connection and safety standards for stable operation.

Why Buy from Eurosanteh.md?
Eurosanteh.md is the official Pedrollo supplier in Moldova, offering only genuine pumps with full factory warranty and complete technical documentation. Enjoy competitive pricing, fast delivery, and expert consultation—from equipment selection through commissioning.