NEW Entry Level Lightweight Diesel Firefighter® Twin


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  • Product Description

    INTRODUCING THE NEW Entry Level Lightweight Diesel Firefighter®

    Davey are proud to announce the release of the NEW Davey Firefighter® Twin model 5248Y.

    This new model utilises the high quality Yanmar L48N6 diesel engine and Davey’s proven 5 Series Firefighter® Twin wet end, fitted with Davey’s new patented impeller inserts.

    Power Limits

    One of the challenges with equipping a traditional fire pump wet end to a diesel engine has always been the different ways in which petrol engines and diesel engines respond to load. While a petrol engine can adjust its speed to match its power capabilities, a diesel engine will attempt to match the power needs while still maintaining speed. This can result in serious and terminal engine overloading issues when diesel engines are not correctly matched to wet ends, particularly as the speed (and head) is increased.

    Davey’s 5210YE/HP is a working example of successful engine matching to wet end through the use of lower flow impellers, thus allowing for 3600 rpm pump speed and the resultant higher head capacity.



    Davey’s NEW 5248Y applies the same principle of lower flow for higher head. To create a lower flow wet end, Davey have developed a unique patented set of impeller inserts allowing the use of our standard and proven twin impeller stack.

    Official Yanmar engine matching was carried out to ensure the wet end and engine are perfectly matched at the “out of box” speed setting of 3600 rpm.

    The result is a compact and lighter diesel engine model, capable of doing a great number of basic pumping duties:

    • Operate a single fire nozzle with identical performance to a 5155H running the same nozzle
    • Pump 3000 l/hr to 35m elevation through 2000m’s of 50mm PN10 poly pipe
    • Produce 50 lpm at 58m head


    • Firefighting
    • Tank filling
    • Water transfer
    • Garden watering
    • Irrigation
    • Crop spraying


    • New Twin impeller design provides the versatility of medium to high flow rates with high heads.
    • Thrust balanced impeller design to extend bearing life.
    • Patented floating impeller neckrings front and back. 
    • Polyester coated pump exterior for added corrosion resistance.
    • 4 way discharge port.
    • Self priming ability from 7m for fast easy use.
    • Attractive baked enamel finish steel carry frame with anti-vibration mounts for easy transportation.




    WHY CHOOSE THE Davey Firefighter® Diesel Powered Self Priming Pumps?

    The 5248Y has been specially designed with patented impeller inserts to provide high head performance at 3600rpm while still able to operate across the full pump curve without overloading the engine. In fact, the maximum power usage of the pump end has been limited to ensure the engine has significant power reserves. In the event of adverse environmental conditions, such as extremes of temperature, altitude and/or humudity, power reserves are vital for the continued reliable operation of the engine. Power reserve is very important in the event of bush or wildfire, where engine power reserves may be required for the safe and reliable operation of the pump unit. The 5248Y features Davey’s unique and patented clamped impeller design to enable longer impeller life, improved performance and easier disassembly in the case of blockage. Published performance data actually shows real pump performance, which is regularly checked by Davey’s ISO9001 accredited QA department. Thrust balanced impeller design to extend engine life. Pump casing, diffusers and impellers manufactured from quality corrosion resistant marine grade aluminium for long life. 4 way discharge port providing easy installation with a choice of plumbing sizes. Epoxy coated pump casing, exterior and interior, for added corrosion resistance. Patented floating impeller neckrings front and back. The front neckring helps improve pumping efficiency, the back neckring helps extend seal life and dramatically reduce engine wear. Self priming up to 7m at 3600rpm for more versatile installation options. Large priming and drain port with bayonet fit plugs. Plugs have a safety retention system and are available with 1/4" tapping to accept pressure gauges or drain cocks. All engines feature cast iron cylinder bore for long life. Viton seal and oring kit available for herbicide/ insecticide spraying.




    Engine: Yanmar L48N6
    Engine Power: 10.0hp
    Engine Type: Diesel
    Inlet Size: 1 x 2"
    Outlet Size: 1 x 2" & 2 x 1" plus 1 1/2" primer port.
    Maximum Flow: 800 lpm
    Maximum Head: 92 m
    Impellers: Single
    Starting: Electric
    Dimension (L x H x W): 675 x 545 x 520mm
    Dry Weight: 65kg
    Warranty: Engine: 2 years / Pump: 1 year


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