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Truck-mounted fire pump series N/NH

N/NH Pumps  
NH pump video   Download brochure PDF  

No matter whether you need an airport, industrial or municipal fire-fighting vehicle – Rosenbauer N/NH series pumps convince people worldwide with their technical details:

  • Minimum pressure change during operation due to
    flat pump output characteristic
  • Integration of a wide variety of foam proportioning systems
  • Pump pressure governor
  • Mechanical overheating protection
  • Maximum priming performance
  • Automatic priming
Piston priming pump
The KAP Professional piston priming pump gives fire-fighters a very effective and extremely rugged priming pump. The drive operates via a drive belt. The KAP can be switched on or off manually or automatically. Due to the oil-bath lubrication and to the double acting piston pump, it has an especially high operational safety.
EZ Prime Auto Prime
The control of the priming pump depends on the pump pressure. When reaching the priming pressure, a cylinder disengages the priming pump – the priming process is disabled. For free-discharge or hydrant operation, the priming pump can be disabled.
Fire-fighters all over the globe rely on the ruggedness, operating safety and user friendly operation of Rosenbauer N/NH-series centrifugal fire pumps.
NH Pump rated capacities  
Four stage hi-pressure   Piston priming
  4-stage high pressure part and 1-stage normal pressure on one common shaft     Piston priming pump with automatic priming - mounted above the
centrifugal pump
  3-stage FIXMIX for 3 proportioning rates High pressure FIXMIX - foam proportioning for the high pressure part
Around-the-pump foam proportioning system  
  A mechanical, automatic around-the- pump foam proportioning system is available for the N/NH series pumps. The system is fully embedded in the pump. The system works automatically and does not depend on pump capacity or pressure. The system is totally maintenance free. Up to 3 different proportioning rates (free combination of 0.5 %; 1 %; 3 % and 6 %) can be selected on the normal-pressure side. The system is available both with mechanical and pneumatic operation.  
High-pressure FIXMIX  
  With this system, one proportioning rate can also be admixed on the high-pressure pump. This system works mechanically too. With the HP FIXMIX it is possible to provide water on the normal pressure side and foam on the high pressure side at the same time.  

Combined normal- and high-pressure
fire pump type “NH”

The NH series pumps combine all the benefits of the N series pump with those of a four-stage high-pressure centrifugal pump on a single pump shaft. The counter-rotating arrangement of the normal- and high-pressure impellers provides optimum thrust load compensation. A separate drive for the high-pressure pump is not required. With the help of a switchover valve, the water supply of the high-pressure pump can be activated and deactivated at any speed. The use of centrifugal impellers makes the high-pressure pump resistant against contaminated water. A separate filter system is not required.
The Rosenbauer high-pressure pump also has a flat characteristic. Pressure peaks, due to HP nozzles being opened and closed, are minimized.