Abrasive Blasting Operations, Engineering Control and
2017-3-27 · a direct pressure or an induction method that may use either the siphon or gravity method as follows: Manual exhaust outlet 1.1.2.1 Direct Pressure Method: In direct air pressure blasting, the abrasive is fed from a pressurized contaLi er (pressure vessel) into a blast hose, as shown in Figure 11-2. The compressed air line is piped to both the ...
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