Determining the Pressure Loss of a Hose:

When conveying materials pressure-loss is inevitable and must be considered by establishing the required compressor power. Our hoses are flow optimized, exceptionally smooth and the internal bending radius folds in a regular pattern, reducing losses to a minimum. Significantly lowering both the purchase and running costs of the system.

The total pressure-loss consists in the first part of  Δpv, which can be found in the diagrams. A second part Δp_Bogen must be considered and calculated if the hose is installed with bends.

(l = length of the hose, ζ = resistance value see below,
δ = density e.g. of air is 1.21 kg/m3, v = velocity of flow):

The resistance value ζ must be calculated for every individual bend:

Pressure-loss of an I.D. 75 mm AIRDUC? PUR 351 MHF hose with a velocity flow of 19 m/s (i.e. in the first diagram: Δpv=120 Pa/m).The total length of the system is 12 m with one 90° bend (i.e. φ=90° → k=1) with the minimum bending radius (i.e. Bending Radius + ? x ?/I.D.≈1 → ζ90°=0,51) and a second 180° bend (i.e. φ=180° → k=1,7) constructed with the doubled minimum bending radius (→ ζ90°=0,3):