Hydrovac excavating blast wand

Details Hydrovac excavating blast wand Hydrovac excavating blast wand

E - Fixed Constructions

21

B

E21B 7/18 (2006.01) E02F 3/88 (2006.01) E02F 3/92 (2006.01) E21C 25/60 (2006.01)

Patent

CA 2292152

A hydrovac wand is provided with a crossfire nozzle arrangement that reduces thrust to the wand operator, and that has a spray pattern that eliminates spray back. A pair of jets erode a hole while two other jets push the debris back to a suction hose. Two high pressure swivels are provided at the end of the wand to allow the wand to rotate in all directions without binding. Boom controls are placed on the wand to maximize digging rates

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