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[X] NP 4000
NP 4000 (production JOHSTADT, Germany) Vehicle mounted pump NP 4000 (Eng. Pump for fire trucks NP 6000) A fire pump capacity 66l / s. Centrifugal, single-stage. Pump Model: NP 4000 Key figures l / s The number and diameter of the pipes conditional Physical characteristics The performance characteristics of reliability indices
Summary Purpose and scope of the manufacturer Features Modular Hydraulic characteristics of Literary Sources As you might be interested in the following pages Summary fire pump NP 4000 is installed on fire engines. Produced by the German company Johstadt and due to its characteristics according to the classification adopted in the Russian Federation would have marked PN-60/100. Purpose and scope Designed for water and aqueous foam in the seat of the fire. Installed on fire engines, mainly on the tanker. flags Manufacturer venture company Johstadt (Germany). Design features housing and impeller are made of seawater resistant aluminum alloy or alloy of copper and bronze. The pump shaft is made of stainless steel. The bearing assembly of the pump shaft and rubber polymer seal does not require lubrication for maintenance. Automatic evacuated system VACUMAT + Piston vacuum pump does not require maintenance. Suction height 0 - 8 m. Modular system
Diagram illustrating the modular principle layout of pumps for fire trucks firm JOHSTADT distinctive feature of almost all pumps for fire trucks production Johstadt, is a modular assembly system flags that allows the customer to choose the complete set of the pump. Thus, a number of indicators flags of the pump when installed on the specific fire engines may vary. For example, the amount may vary, and the diameter flags of the suction and discharge ports. The illustration below you can see the various options for layout fire pump. You can easily see that, if necessary, the pump can be equipped with the necessary amount flags of suction and discharge nozzles.
Various examples of the layout of the fire pump NP 4000 Hydraulic characteristics
The dependence flags of the pressure (p) by the pump from the pump flow rate (Q) 1 - at rated speed shaft 2750 ... 2800ob / min 2 - at rated speed shaft 2750 ... 2800ob / min On the graph, specified "acceptable" intervals optimal supply SPLA for two modes of operation: at rated speed shaft 2750 ... 2800ob / min - interval optimum operation 10-4000l / min (or 0,16-66l / s); at rated speed shaft 2750 ... 2800ob / min - interval optimum operation 10-3000l / min (or 0,16-50l / s). Literary sources Operating Instructions Official site Johstadt, Pumps for fire trucks NP 4000. As you might be interested in the following pages Fire pumps calculation of pump-bag systems NP 3000 NP 6000 Top
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