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Appendix
Appendix
Installation & Maintenance
Assemblies
Equipment & Accessories
Fittings
Hoses
Hose ID Selection Nomograph
The chart below is intended to aid in the selection of
the correct hose size. By choosing a flow rate and a
flow velocity, the optimum hose ID can be determined.
Selecting the correct hose ID is important to prevent an
oversized assembly, which can be heavy and costly or an
undersized assembly causing an excessive pressure drop.
Selecting the Correct Hose ID
1.
Choose flow rate and flow velocity. Locate each value
on its grid.
2.
Lay a straightedge to connect the two values.
3.
The recommended hose ID is located on the ID scale,
at the intersection of the line drawn between flow rate
and flow velocity. Should the line intersect between
two values, use the next highest ID
Example:
To find the correct hose ID for a system
running at 13 gallons/minute and 10 feet/second,
draw a line between the two values on each grid. The
intersection of that line on the ID grid is 3/4” ID
Recommendations are based on a oil viscosity of
315
S.S.U., at 100˚F, operating at a temperature of 65˚F
to 155˚F.