Onga Blazemaster B55BS Single Stage Fire Pump

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    Product Documents

    Onga Blazemaster B55BS Single Stage Fire Pump – Briggs & Stratton Petrol Engine Drive

    Onga has a vast range of fire fighting pumps to accommodate your requirements. Onga’s single stage Blazemaster pumps are designed to move more water, more economically and come available in a wide range of petrol (Honda and Briggs & Stratton), diesel (Yanmar and Kohler), recoil and electric start models.

    Protecting your property against fire is a high priority within our rural and city edge community. The range of Onga BlazeMaster engine drive firefighting pumps has been designed specifically for this reason. And for portable water transfer, you can’t go past the Onga BlazeMaster. The Engine Drive range is available in a wide range of petrol, diesel, recoil and electric start models.Onga also offers engine driven versions of its dependable cast iron jet and centrifugal pumps. Coupled to shallow or deep well injectors, these pumps can be adapted to almost any job, and deliver water where and when you need it without the exorbitant cost of running electrical lines.


    Brand Onga Pumps
    Product Type Engine Drive
    Suitable For Non aggressive liquids without solids or fibres in suspension
    Stages Single stage
    Application Fire Fighting
    Tank Filling
    Water Transfer
    Irrigation & Spraying
    Engine Brand Briggs & Stratton
    Flow Rate (L/min) 640 L/min
    Head 58m
    kPa 580kPa
    Fuel Petrol
    Inlet 1½” BSP (M) / 40mm BSP (M)
    Outlets 2 x 1″ BSP (M) + 1½” BSP (M)
    Pump Dimensions 505L x 304W x 481H (mm)
    Box Dimensions 620L x 465W x 550H (mm)
    Weight 29kg
    Nominal HP 5HP
    Displacement 205cc
    Fuel Tank Capacity 3 Litres
    Fuel consumption @ 3600RPM 2.04 LT/hour
    Recommended Oil Type SAE30
    Pump Casing Power coated Aluminium
    Impeller/s 30% Glass Filled Nylon
    Diffuser Aluminium
    Priming / Discharge Caps Glass Filled Nylon
    Seal Flexible Cellows Nitrile
    Seal Stationary Face Ceramic
    Seal Rotating Face Carbon
    Seal Spring Stainless Steel
    Motor Shaft Mild Steel
    O’Rings Nitrile


    Fire fighting, tank filling, water transfer, boom spraying and irrigation.

    • The Blazemaster single-stage pumps are designed to move more water, more economically.
    • Briggs and Stratton Intek™ I/C race-bred series engine for reliability, durability and performance.
    • Manual and electric start options for versatility.
    • Fuel tap with sediment bowl and sight glass for greater ease when checking fuel and servicing.
    • Dual element air filter for cleaner operation.
    • Polyethylene fuel tank for impact / corrosion resistance.
    • ‘Run sense’ low oil protection to protect the engine from low oil failures and engine damage.


    • Big Pump Body with raised suction port
    • Larger diameter impellers
    • CFD* designed hydraulic components
    • FEA* designed pump components
    • Inbuilt non-return valve
    • Large diameter priming ports
    • Large raised handle
    • Cast Aluminium construction


    • Better Priming capability
    • Higher discharge head
    • Higher performance and efficiency
    • Higher strength with low weight
    • Assists priming performance
    • Quicker installation and service
    • Fast and easy priming set-up
    • Better ergonomics
    • Strength, durability and lightweight portability

    Operating Conditions

    • Suitable for pumping clean non-aggressive liquids without solids or fibres in suspension.
    • Fluid:
      *Maximum water temperature: 55°C.
      *Minimum water temperature: 1°C.
      *Maximum ambient temperature:40°C.
      *Maximum casing pressure: 1300kPa.
    • For liquids outside of this range please consult your local Onga office for product suitability.
    • Viton seal kit available as replacement service part.
    • Engine performance greatly reduced with increased ambient temperature and/ or altitude, clarify with Engine Manufacturer



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