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| NH-series |
| Klicken Sie auf die Abbildungen um eine größere Ansicht zu erhalten! |
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| Contact: werner.wolfschluckner@rosenbauer.com |
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| Characteristic |

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The pumps of the ROSENBAUER N(=normal pressure) and NH(combined
normal- and high-pressure) -series are the result of a
modular constructed product family. The normal pressure
versions comprise one-stage centrifugal pumps, while the
high-pressure versions have three stages.
The ROSENBAUER N/NH series is equipped with a standard gearing,
which permits optimum adjustment to various drive speeds.
An extensive range of additional features is available for
the ROSENBAUER N/NH series, ranging from diverse pressure distributors
to multi-phase premixing systems and electronic pressure regulation.
The main area of application for the ROSENBAUER N/NH series
are municipal fire-fighting vehicles.
The ROSENBAUER N/NH-series is also employed for industrial
fire-fighting vehicles and air crash tenders, as well as for
motor-pump units.
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Performance data
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normal
pressure
10bar
delivery rate
[l/min] |
normal
pressure
145psi
delivery rate
[US.gpm]
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high
pressure
40bar
delivery rate
[l/min] |
high
pressure
580psi
delivery rate
[US.gpm] |

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| Type |
| N20 |
2000 |
528 |
-------- |
-------- |
Download
PDF |
| NH20 |
2000 |
528 |
400 |
106 |
Download PDF |
| N30 |
3000 |
793 |
-------- |
-------- |
Download PDF |
| NH30 |
3000 |
793 |
400 |
106 |
Download PDF |
| N40 |
4000 |
1058 |
-------- |
-------- |
Download PDF |
| NH40 |
4000 |
1058 |
400 |
106 |
Download PDF |
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| Technical data |
| Centrifugal pump: |
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Single stage normal pressure pump (N) and three stage
high-pressure pump (NH) contra-rotating, mounted on the
same triple beared pump shaft, made of corrosion-resistant
steel. Between the low- and the high-pressure-section a
maintenance free compression gland guarantees a reliable
sealing. Outwards the waterproofing of the pump shaft is
realised by 2 mechanical, also maintenance-free mechanical
seals. The low and high-pressure housing as well as the
impeller and stator are made of corrosion-resistant steel.
The connection of the two pump housings is made by the
patented ROSENBAUER-CIRCLIP system.
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| Priming pump: |


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The suction process is manually or automatically operated
by a double-action piston pump running in an oil bath. The
light-alloy piston is driven by a sliding block, sitting
eccentrically on a separate ball-beared shaft, driven from
the pump shaft by a V-belt or toothed-belt. The suction or
pressure valves are concentrically placed in the cylinder
head, there result the very compact dimensions.
air pressure: 0,975bar
speed of the priming pump: n=3.700min-1
to 4.000 min-1
temperature of the
priming pump: t= 25°C - 53°C
volume of the measuring
reservoir: 100ltr
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| Gearing: |
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Single-stage, helical gear. The hardened and grounded gear
wheels made of high value steel guarantee - running in an
oil bath - a silent operation at a long lifetime.
There exist 17 gearing-up proportions in total, so that
an optimal adaptation to a wide spectrum of rotation speed
of the drive assembly can be realised. Therefore the pump
an the drive are always running at the optimal working point.
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| Optional features, e.g.: |
| Foam proportioning system ROSENBAUER
FIX MIX |
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| Pump instrument panel: |
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The instrument panel of the pump is made of steel,
white painted and set up above the suction inlet of the pump. It
enables - depending on the construction - a comfortable operation
of the pump, the outlets and the foam proportioning system ROSENBAUER
FIX-MIX. Furthermore there are pressure indication instruments, warning
lights and a colour guidance system to enable a quick and reliable
pump operation or monitoring.
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| Pressure regulator: |
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The pump pressure - independent from the supplied
water volume - is hold constantly at a from the operating staff defined
level by an electronic control unit.
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| Pumpenheizung / Pumpenkühlung: |
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A water space which is connected to the cooling
circulation of the drive engine coats the pump and prevents the freezing
of the pump during the ride at low exterior temperature and furthermore
serves as additional coolin of the drive engine during long pump
operations.
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| Pump chart: |
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