Page 351 - Parker Parflex Thermoplastic & Fluoropolymer Products Hose, Tubing, & Fittings 2017 - Cat 4460

Selection of Hose Diameter Hose

Flow Capacities at Recommended Flow Velocities A

The nomogram below is provided as an aid in left-hand column and 20 feet per second (fps) in the
determining the correct hose size. right-hand column (the maximum recommended
velocity range for pressure lines). Lay a straight edge
How to use the nomogram: Determine the proper across these two points. The inside diameter re-
flow rate your system requires, then connect a quired is shown in the center column at or above the Tubing
straight edge from the selected flow rate to the straight edge. In this case, we need a hose I.D. of
recommended velocity range. The required hose I.D. 0.625 (5/8") inch (or larger). B
will appear at the intersection of the straight edge
and the center column. If the straight edge passes Use the same procedure for suction of return lines,
through the scale between sizes listed, use the next except utilizing their respective maximum
larger I.D. hose. recommend velocities.
Example: Locate 16 gallons per minute in the Coiled Air Hose

Flow & Fittings
Gallons per
Minute C

Transportation

D

Fittings
E

Tooling, Equipment & Accessories

F

General Technical

For detailed ordering information, please consult price list or contact Parflex Division. G
Parker Hannifin Corporation | Parflex Division | Ravenna, Ohio | parker.com/pfd G-5