The BB-4® portable fire pump is an ideal unit for remote water transfer, initial attack, sprinkler systems, brush truck and slip-on firefighting systems in forestry and rural fire environments.

High-pressure up to 440 PSI (30 bar) is provided to operate very long hose lays and overcome pressure losses due to large elevation changes often encountered in rugged wildland fire operations.

The higher power provided by the Briggs & Stratton 23 HP engine makes it ideal for pumping at high altitudes.

A unique feature of the BB-4® pump is the quick release pump end that is inter-changeable with our MARK-3® pump. This standardization allows for in-field pump end exchanges eliminating long equipment down time and greatly reduces the inventory of parts at equipment service shops.

Flow rate at specified pressure
Maximum Pressure: 440 PSI (30.3 bar)
Maximum Flow: 106 US gals/min (401 L/min)
Maximum Head: 1016' (310 m)
103 GPM (390 lpm) @ 150 PSI (10.3 BAR)
94 GPM (356 lpm) @ 250 PSI (17.2 BAR)
65 GPM (246 lpm) @ 350 PSI (24.1 BAR)
Model & Type: Briggs & Stratton Vanguard, 4-cycle, horizontal shaft, twin cylinder, OHV
Maximum Power: 23 hp (17.2 KW) @ 3600 RPM
Maximum Torque: 32.75 lb-ft (44.4 Nm) @ 2600 RPM
Starting System: Re-coil start with 12 VDC electric start option
Type: Detachable 4-Stage Centrifugal Pump
Intake: 2" Male NPSH
Discharge: 1-1/2" Male NPSH
Weight: 195 lbs (88 kg)
Carry Frame
Drive Unit
Timing Belt and Pulley; Speed Increaser 1.88:1
Other specifications
Primer: Electric Package - Electric Primer, LED work light, & Battery (Standard)
Muffler: Exhaust primer muffler (Standard)
Check Valve Manifold: 1-1/2” NPSH (Standard)
Discharge Gauge: 0-600 psi, 2-1/2" dial (Standard)
Controls: Engine Mount Control Panel (Standard)
Fuel Tank: Integral / 1.75 US galls (6.6 L) (Standard)
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