50-NFM-125

50-NFM-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 for 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 for service work in fields, construction and agriculture, drainage, pumping and irrigation. The specific density of pumped water is up to 1 050kg/m3 and 3% of the weight of solid mechanical addition. The maximum temperature is up to 40°C and acidity 6 – 7,5pH.

Construction

The pump is designed as horizontal. It consists of hydraulic and mechanical part. The hydraulic part consists of a body, in which there is intake and discharge space, 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 non-return valve is placed on the front side of the body. On the upper body there is placed discharge housing and irrigation plugged hole. 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 in which the rotor is placed. Shaft in stuffing box space is sealed by mechanical seal, and the space behind mechanical seal is lubricated with EKO oil. In to monoblok version - the pump, connecting body and electric motor forms a single integral unit.

Execution

LN - volute, impeller, shim, suction and discharge attachment, bearing body - grey cast iron, shaft - constructional steel, impeller nut - brass
The seal for packing is soft cord or mechanical.

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-NFM-125-11,5-LN-010-91
50-NFM-125-11,5-LN-010-92
50-NFM-125-11,5-LN-00-9
50-NFM-125-11,5-LN-00-20
6 21 1,3 Electric motor 1,5 2870 42
34
48
58
50-NFM-125-11,5-LN-000-24
50-NFM-125-11,5-LN-00-24
7,5 30 2,4 Petrol engine
HONDA G150
2,85 3600 46
44

* 20 - čerpadlo s úplnou poddajnou spojkou a s elektromotorom na podvozku
* 90 - monoblok
* 91 - monoblok na podvozku
* 92 - monoblok na podložke
* 93 - monoblok pre pevné potrubie
* 94 - monoblok pre pevné potrubie na podložke

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