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Undersized air supply hose to the blast hopper results in friction loss. A loss of 1 psi results in a 1 1/2% reduction in production rate, i.e. a loss of 10 psi means a loss of 15% of production.
Minimum air supply hose should be 1 1/2", for 1 blast nozzle or 2" when using either a 1/2" or larger nozzle or multiple nozzles.
The illustration below demonstrates how the common practice of running two 1" hoses does not provide the same cross-sectional area as one 2" hose.
2 x 1" Air Supply Hose
1 x 2" Air Supply Hose
Contact Blast-One on 1800 190 190 to talk to our team about the correct size airless hose.