Page 41 - Catalog4400.pdf

Parker Hose Nomenclature
Example: 451TC-8
451TC-8 - Hose Type
451TC-8 - Indicates the special feature of the hose
(in this case, ‘Tough Cover’)
451TC-8 - Hose inside diameter dash size
(in this case, 8/16" or 1/2")
Hose Information
• Base part number
• Description
• SAE, ISO, and
EN specifcations
Hose Working Pressure
Should have a working pressure
rating meeting or exceeding the
maximum operating pressure of
the system. The maximum rating is
listed below for where the hose is
to be used.
Hose Inner Diameter
Measured in 1/16 inch
increments identifed by
use of a “dash”(-)
numbering system. i.e.,
4/16" = 1/4" = -4.
Hose Outer Diameter
A critical measurement when
considering hose clamps and
applications where envelope
size is limited.
Minimum Bend Radius
Is the smallest arc that the
hose can be bent before
its life is greatly reduced.
Exceeding the bend radius
can cause kinking, inner
tube washout and excessive
stress on reinforcement.
Weight
Provided by the foot for
instances where it is a
critical parameter in the
design of the system.
Visually shows
hose construction.
Approved Fitting
To be used with
the hose. Could be
crimped or feld
attachable.
For more information
regarding hose application
and temperature, see the
Technical Section.
Hose Section
Fittings Section
Equipment Section
Catalog Sections
Accessories Section
Technical Section
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