50-NFQ-125

50-NFQ-125

The self-priming pump is a low-pressure pump, designed for a wide range of uses, applicable for pumping polluted sewage water with self-priming ability of a depth up to 6 meters. The application of this pump is mainly fo service work in fields, construction and agriculture, drainage, pumping and irrigation.

Application

The self-priming pump is a low-pressure pump, designed for a wide range of uses, applicable for pumping polluted sewage water with self-priming ability of a depth up to 6 meters. The application of this pump is mainly fo service work in fields, construction and agriculture, drainage, pumping and irrigation. The density of the pumping liquid up to 1 050 kg/m3, containing up to a 3% weight hard mechanical mixtures (sand, grit), max. granulation 4 mm. Max temperature 60 °C and acidity 6 – 7.5 pH at 20°C (LC, AL execution). For the ZC execution is pH range is 1 – 14.

Construction

The pump is designed as horizontal. It consists of hydraulic and mechanic parts. The hydraulic part consists of a body, in which there is an intake and discharge space, and a simple spiral and flow hole. The flow hole serves to circulate water in the body at the initial start-up pump. The suction body with a non-return valve is placed on the front side of the body. A discharge housing and irrigation plugged hole is placed on the upper body. The semi-open impeller attached to the shaft is placed in the spiral part.
The mechanical part consists of a connecting body with two anti-friction bearings placed in the rotor. The shaft in the stuffing box space is sealed by a mechanical seal, the space behind mechanical seal is lubricated with EKO oil. In the monoblok version - the pump, connecting body and electric motor form a single integral unit.
In the monoblok version with the Honda petrol engine, the connecting piece fulfills the function of the bearing housing. The pump hollow shaft is placed in ball bearings.

Execution

LN - volute, impeller, suction and discharge attachment, bearing body, connecting body - grey cast iron, shaft - constructional steel, impeller nut - brass
The pumps are produced with mechanical seal.

Delivery range

pump with free shaft end
pump with drive on base plate
pump with drive on bogie
monoblok version
with alternative power according to individual requests of customer

Aggregate Max.
flow rate
[l/s]
Max.
discharge
head[m]
Pump power
[kW]
Drive Motor
power
[kW]
Design speed
[1/min]
Weight [kg]
50-NFQ-125-12,5-LN-020-9
50-NFQ-125-12,5-LN-010-90
6 21 1,3 Elektromotor 1,5 2870 41
47
50-NFQ-125-12,5-LN-030-90 7,5 30 2,4 Benzínový motor
HONDA G150
2,85 3600 46

ZÁKLADNÉ TECHNICKÉ PARAMETRE:
9 – monoblok
90 – monoblok v prenosnom ochrannom ráme

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