Ideal for shallow water dredging conditions. Without getting into an explanation of friction loss of your ten foot, one inch diameter pressure hose, you will require 33.5 psi at the pump to provide the 30 psi at the eductor. The best gold prospecting tool for every season is the one that will find you the most gold In this case, the water levels are just right for me to gold dr. Precision manufactured from thin-wall plated steel tubing with machined orifices to create maximum suction. Refer to a conversion chart to find conversion of decimal inched to "regular" inches which is fractionally larger than 1/2".Īt 30 psi the 1/2' eductor will require 41 g.p.m. 264 IMPORTANT: this is the radius of the eductor size - NOT the bore size! Its business end is a suction nozzle at the bottom of a double-walled pipe. Now for the tricky part: convert backwards and finally come up with a bore diameter.Įductor size is. A GOLD dredge that will bore its own way to deposits of the precious metal. Includes: 15 feet of suction hose 17 feet of pressure hose. inchesĮxample: 2 inch jet Ģ inch jet = 3.14 x (1" (radius of jet) Squared)ģ.14 sq inches x 7% (.07) =. The suction nozzle is ideal for working in shallow conditions.
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