Page 412 - Cat4800-Oct2011

398 Parker Industrial Hose Customer Service
866 810 HOSE (4673) 800 242 HOSE (4673)
Strongsville, OH South Gate, CA
Eastern USA Western USA
www.safehose.com
e-mail: indhose@parker.com
Safety & Technical Information
Safety Overview
It is important to employ safe practices in the use of
industrial hose due to the number of potentially dangerous
applications encountered and products conveyed, and the
number of people that may be involved or exposed. Strictly
observe these simple practices to help avoid accidents:
• Training: Train all operators thoroughly.
• Evaluation:Evaluate the application to determine the hose
assembly performance requirements.
• Selection: Select the most appropriate hose and couplings
for the application; ensure that the couplings
are compatible with the media and hose, and
securely attached to the hose.
• Service: Regularly inspect and maintain both the hose
and couplings while in service.
Industrial Hose Assemblies
Coupling Compatibility and Maximum
Working Pressure Rating
NOTE: Tis advisory does not apply to hose, hose
couplings, hose assemblies and related accessories
manufactured by any other Parker Fluid Connector
Division worldwide. Products from other Parker
divisions must be assembled and applied in strict
compliance with their respective catalog instructions,
Safety Guide precautions, and other statutory, industry
and regulatory requirements.
Safety issues may develop due to the misunderstanding of
the relationship between the maximum working pressure
ratings of industrial hose assembly components, as well as
how to obtain a maximum working pressure rating for a
fabricated industrial hose assembly.
It is important to recognize that the pressure rating of any
hose assembly is that of the lowest rated component. Te
three components of an industrial hose assembly that are
subject toamaximumworkingpressure ratingare thehose,
the coupling/coupling end connection, and the hose-to-
coupling attachment device. Many OEM- and distributor-
fabricated assemblies incorporate the three components
manufactured by diferent companies: Tese components
are not designed and tested together as a compatible
system. Confusion may occur because the hose is often
boldly marked with its maximum rated working pressure
while the coupling and/or attachment device are generally
unmarked or difcult to read. Terefore, the pressure
rating for the assembly may incorrectly be assumed to be
the pressure rating of the hose.
Parker has tested, qualifed and validated a group of
specifc hoses and specifc couplings. When fabricated
according to Parker-specifed procedure and criteria,
Parker certifes the assembly pressure rating to be equal
to that of the hose. Tese hose, coupling and attachment
specifcations are available online in the CrimpSource
section of the Parker Industrial Hose Products Division
website: www.safehose.com
WARNING! When using components or assembly
procedures not prescribed in the CrimpSource
specifcations, the working pressure of the hose
assembly may be less than the working pressure of the
hose. Couplings and attachment devices that fall into
this category are inserts/stems and bands or clamps;
inserts and crimped brass ferrules; screw-together
reattachable couplings; internally expanded couplings;
and swaged couplings. Coupling end connections may
also fall into this category. For these items, contact
the hose or coupling manufacturer to determine the
maximum working pressure rating of a specifc hose
or coupling and end connection. To determine an
attachment device rating, test and validate the entire
assembly.
WARNING! When using components or assembly
procedures not prescribed in the CrimpSource
specifcations, it is the responsibility of the assembler
to ensure the integrity and compatibility of the
componentsandtoinformtheenduserof theassembly’s
maximum working pressure rating by permanently
marking the assembly with that rating.
Critical Applications
While many industrial hose applications are potentially
dangerous, some are of particular concern because their
danger may not be readily apparent. Tis is especially true
for applications involving untrained or inexperienced
operators.
Aircraft Fueling Hose
Use only API/NFPA qualifed hose for aircraft fueling
applications. Aircraft fueling hose incorporates high grade
rubber compounds that dissipate static charges and will
not contaminate fuel.
Note: To avoid fuel contamination do not use gasoline
dispenser or farm pump hose to fuel aircraft.