Guardair Vacuum Performance

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Expected Vacuum Rates

Venturi Type Vacuum Hose Size Gravel(lbs/min) Aluminum Chips(lbs/min) Sand(lbs/min) Water(gal/min)
M 1¼" 20 22 17 24
S 1½" 22 22 17 25
D 1½" 35 32 35 48
B 1½" 33 28 29 47
2B 1½" 34 29 25 32
B 2" 39 32 29 81
2B 2" 53 35 32 63

Operating at 100 psi with recommended air line hose.

Vacuum Noise Levels

Vacuum Generating Headwith Venturi Type Standard Exhaust Noise Level(dB) Extra Silent Exhaust Noise Level(dB)
M 95 88
S 96 85
D 101 87
B 101 94
2B 103 90

Operating at 100 psi with recommended air line hose.