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Pumps inline heating water supply

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IRG

Dry Rotor Pumps IRG Series

Dry Rotor Pumps IRG Series – vertical single-stage centrifugal pumps with in-line nozzles. This design of these pumps makes them more resistant to mechanical inclusions in the pumped liquid compared to similar pumps with a "wet" rotor. Their universal design ("in-line") allows quick dismantling of the pump from the pipeline without dismantling the elements of the pipeline system.

Characteristic

  • Glanded cast iron pumps IRG have a vertically located electric motor, and the suction and pressure nozzles are located on the same axis, which allows them to be installed directly on the pipeline (in-line); pumps have compact overall dimensions, do not take up much space and can be installed outdoors (under a canopy);
  • The impeller of IRG dry rotor pumps is located directly on the extended motor shaft, thanks to which the pumps operate quietly without creating high vibrations, and the pump housing is connected to the motor in such a way that it can significantly reduce thrust during pump operation;
  • A mechanical seal or a combination of different seals is used to seal the pump shaft; in addition, the titanium alloy from which the seal is made extends the life of the pumps.

Pump features

In a dry rotor, the pump part with the impeller has direct contact with the pumped medium. And the motor is separated from the pump part by a rotating shaft and a sliding mechanical seal. The mechanical seal is a dynamic seal and is used to seal the gap between the pump's rotating shaft and pump housing.

Model range of IRG pumps with a dry rotor made of cast iron

Model Consumption
(m3/hour)
pressure
(m)
Power
(kW)
turnovers
(rpm)
Diameter
(mm)
NPSN
(mm)

efficiency
(%)

The weight
(kg)
50-125A eleven 16 1.1 2900 fifty 2.3 57 38
50-125(I)A 22.3 16 2.2 fifty 2.5 66 48
50-200(I)A 23.5 44 5.5 fifty 2.5 57 107
65-125 25 twenty 3 65 2.5 68 58
65-160 25 32 four 65 2.5 63 75
65-200 25 fifty 7.5 65 2.5 58 107
65-250 25 80 fifteen 65 2.5 fifty 180
80-125 fifty twenty 5.5 80 3.0 72.5 99
80-100(I) 100 12.5 5.5 80 4.5 76 108
80-125(I) 100 twenty eleven 80 4.5 76 163
80-160 fifty 32 7.5 80 3.0 71 105
80-200 fifty fifty fifteen 80 3.0 67 175
100-100A 89 ten four 100 4.5 74 91
100-160 100 32 fifteen 100 4.5 76 191
100-200 100 fifty 22 100 4.0 74 245
100-200(I) 160 fifty 37 100 5.2 79 402
200-315 200 32 thirty 1450 200 3.5 78 417
200-400A 187 44 37 200 3.5 74 462
200-250(I)A 358 16 twenty 200 4.0 73 405
200-315(I) 400 32 55 200 4.0 80 675
200-315(I)A 374 28 45 200 4.0 79 560
200-315(I)B 346 24 37 200 4.0 78 535

IRG Dry Rotor Pump Performance Diagrams

IRG

Specifications

Pump data materials

Step no. pressure
Min. liquid temperature
Max. liquid temperature

PIN 16
-twentyoC
+120oC

Frame
Shaft
Working wheel
slip ends. seal
casing

cast iron
25
GG 20
AQ1EGG
cast iron

Pump Diagram

IRG
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PumpType
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Installation Type
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