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Mercury FlowGuard


Mercury FlowGuard

How it Works:
When the hose or the monitor experiences excessive, potentially hazardous movement while flowing, the Mercury FlowGuard, will automatically reduce water flow to minimise potential risk to operators.


  • Does Not Shut Down all the Flow
    • Reduces to about 1/3 of the flow
    • No water hammer of the pump
  • Fast and Easy Reset
    • Close monitor valve, turn reset button a ¼ turn, put hose back in line, open monitor valve and start flowing
  • Lightweight and Compact with a Slim Profile 
    • Weighing 4.6 pounds or 2 kg
    • 9.125” inches long or 231mm
  • Low Friction Loss 
    • 8 psi or less than 1 bar at 1900 lpm (total friction loss at 1900 lpm is 14 psi or 1 bar with FlowGuard)
  • Optional 
    • Can be specified with the new 3444 and retrofitted in the field to previous Mercury Quick Attack monitors 3443
    • Can be ordered separately or in specified combos


Style 3448
Warranty Warranty
Weight 4.6 lbs (2 kg)
Type Portable
Material Pyrolite
Brand Mercury
Length 9.125″ (231mm)
Width 3.875″ (98mm)
Height 6″ (152mm)
Inlet 2.5″ (65mm)
Operating Pressure Max 230 psi (Max 16 bar)
Flow (GPM) Max 500
Flow (LPM) Max 1900

Design your own combination by choosing from these product options:

FlowGuard Operating Instructions

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