Single impeller centrifugal pumps with direct motor-pump connection and common shaft. The pump housing (multi-row version) has suction and delivery sockets of the same diameter and located on the same shaft.
Application: Pumping of clean liquids that are not aggressive to materials and do not contain abrasive impurities from which the pump is made (solids content max. 0.2%). Use in household and industrial areas. If necessary, work with a reduced noise level (n = 1450 rpm). Use in heating, air conditioning, cooling and circulation installations.
Operating limits: - Maximum allowable final pressure in the pump casing: 10 bar. - Continuous operation. - Fluid temperature from -10°С to +100°С. - The ambient temperature is not more than 40°С. - Manometric suction lift no more than 7 m.
Dimensions
Flange
NR,NR4 50, NR,NR4 65
Threaded flanges PN 16, EN 1092-1
NR4 80, NR4 100
Lap Weld Flanges Standard
NR4 125
PN 10, EN 1092-1
Construction materials
Component
Material
Pump housing Connect part
Cast iron GJL 200 EN 1561
Working wheel
Cast iron GJL 200 EN 1561 (Brass P-Cu Zn 40 Pb 2 UNI 5705 for NR 50)
Shaft
Up to 1.1 kW - AISI 303 chrome steel From 1.5 to 7.5 kW - AISI 430 chrome steel
Fur. seal
Charcoal - Ceramics - NBR
Counter flanges
Steel Fe 42 UNI 7070
Special executions on request
- Other voltages - Frequency 60 Hz (see catalog for frequency 60 Hz) - With protection device IP 55 - Special mech. seals - For media with higher or lower temperatures.
