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Parker Hannifn Corporation
Parfex Division
Ravenna, OH
Catalog Number 4200-M-2 General Technical Information
Parker Safety Guide
for Selecting and Using Hose, Tubing, Fittings, and Related Accessories
Parker Publication No. 4400-B.1
Revised: May 2002
WARNING: Failure or improper selection or improper use of hose, tubing, fittings, assemblies or related accessories (“Products”) can cause
death, personal injury and property damage. Possible consequences of failure or improper selection or improper use of these Products include
but are not limited to:
• Fittings thrown off at high speed.
• High velocity fluid discharge.
• Explosion or burning of the conveyed fluid.
• Electrocution from high voltage electric power lines.
• Contact with suddenly moving or falling objects that are controlled
by the conveyed fluid.
• Injections by high-pressure fluid discharge.
• Dangerously whipping Hose.
• Contact with conveyed fluids that may be hot, cold, toxic or otherwise
injurious.
• Sparking or explosion caused by static electricity buildup or other
sources of electricity.
• Sparking or explosion while spraying paint or flammable liquids.
• Injuries resulting from inhalation, ingestion or exposure to fluids.
Beforeselectingor usinganyof theseProducts, it is important that you readand follow the instructionsbelow. OnlyHose fromParker’sStratoflexProducts
Division is approved for in flight aerospace applications, and no other Hose can be used for such in flight applications.
1.0 GENERAL INSTRUCTIONS
1.1 Scope: This safety guide provides instructions for selecting and using
(including assembling, installing, and maintaining) these Products. For
convenience, all rubber and/or thermoplastic products commonly called
“hose” or “tubing” are called “Hose” in this safety guide. All assemblies
made with Hose are called “Hose Assemblies”. All products commonly
called “fittings” or “couplings” are called “Fittings”. All related accessories
(including crimping and swaging machines and tooling) are called
“Related Accessories”. This safety guide is a supplement to and is to be
used with, the specific Parker publications for the specific Hose, Fittings
and Related Accessories that are being considered for use.
1.2 Fail-Safe :Hose, andHoseAssembliesandFittingscananddo fail without
warning formany reasons.Designall systemsandequipment ina fail-safe
mode, so that failure of the Hose or Hose Assembly or Fitting will not
endanger persons or property.
1.3 Distribution : Provide a copy of this safety guide to each person that is
responsible for selecting or usingHose and Fitting products. Do not select
or use Parker Hose or Fittings without thoroughly reading and
understanding this safety guide aswell as the specific Parker publications
for the products considered or selected.
1.4 User Responsibility: Due to the wide variety of operating conditions and
applications for Hose and Fittings, Parker and its distributors do not
represent or warrant that any particular Hose or Fitting is suitable for any
specific end use system. This safety guide does not analyze all technical
parameters that must be considered in selecting a product. The user,
through its own analysis and testing, is solely responsible for:
• Making the final selection of the Hose and Fitting.
• Assuring that the user’s requirements are met and that the application
presents no health or safety hazards.
• Providing all appropriate health and safety warnings on the equipment
on which the Hose and Fittings are used.
• Assuring compliance with all applicable government and industry
standards.
1.5 Additional Questions: Call the appropriate Parker technical service
department if youhaveanyquestionsor requireanyadditional information.
See the Parker publication for the product being considered or used, or
call 1-800-CPARKER, or go to www.parker.com, for telephone numbers
of the appropriate technical service department.
2.0 HOSEANDFITTINGSELECTION INSTRUCTIONS
2.1 Electrical Conductivity: Certain applications require that the Hose be
nonconductive to prevent electrical current flow. Other applications
require the Hose and the Fitting and the Hose/Fitting interface to be
sufficiently conductive to drain off static electricity. Extreme care must be
exercised when selecting Hose and Fittings for these or any other
applications in which electrical conductivity or nonconductivity is a factor.
The electrical conductivity or nonconductivity of Hose and Fittings is
dependent upon many factors and may be susceptible to change. These
factors include but are not limited to the various materials used to make
theHoseand theFittings, Fitting finish (someFitting finishesareelectrically
conductive while others are nonconductive), manufacturing methods
(including moisture control), how the Fittings contact the Hose, age and
amount of deterioration or damage or other changes, moisture content of
the Hose at any particular time, and other factors.
The following are considerations for electrically nonconductive and
conductive Hose. For other applications consult the individual catalog
pages and the appropriate industry or regulatory standards for proper
selection.
2.1.1 Electrically Nonconductive Hose: Certain applications require that the
Hose be nonconductive to prevent electrical current flow or to maintain
electrical isolation.For theseapplications that requireHosetobeelectrically
nonconductive, including but not limited to applications near high voltage
electric lines, only special nonconductive Hose can be used. The
manufacturer of the equipment in which the nonconductive Hose is to be
used must be consulted to be certain that the Hose and Fittings that are
selected are proper for the application. Do not use any Parker Hose or
Fitting for any such application requiring nonconductive Hose, including
but not limited to applications near high voltage electric lines, unless (i)
the application is expressly approved in the Parker technical publication
for the product, (ii) the Hose is marked “nonconductive”, and (iii) the
manufacturer of theequipment onwhich theHose is tobeusedspecifically
approves the particular Parker Hose and Fitting for such use.
2.1.2 Electrically Conductive Hose: Parker manufactures special Hose for
certain applications that require electrically conductive Hose. Parker
manufactures special Hose for conveying paint in airless paint spraying
applications. This Hose is labeled “Electrically Conductive Airless Paint
Spray Hose” on its layline and packaging. This Hose must be properly
connected to the appropriate Parker Fittings and properly grounded in
order to dissipate dangerous static charge buildup, which occurs in all
airless paint spraying applications. Do not use any other Hose for airless
paint spraying, even if electrically conductive. Use of any other Hose or
failure to properly connect the Hose can cause a fire or an explosion
resulting in death, personal injury, and property damage.
Parker manufactures a special Hose for certain compressed natural gas
(“CNG”) applications where static electricity buildup may occur. Parker
CNG Hose assemblies comply with AGA Requirements 1-93, “Hoses for
Natural Gas Vehicles and Fuel Dispensers”. This Hose is labeled
“Electrically Conductive for CNG Use” on its layline and packaging. This
Hose must be properly connected to the appropriate Parker Fittings and
properly grounded in order to dissipate dangerous static charge buildup,
whichoccurs in, for example, highvelocityCNGdispensingor transfer. Do
not use any other Hose for CNG applications where static charge buildup
may occur, even if electrically conductive. Use of other Hoses in CNG
applications or failure to properly connect or ground this Hose can cause
a fire or an explosion resulting in death, personal injury, and property
damage. Care must also be taken to protect against CNG permeation
through theHosewall. See section 2.6, Permeation, formore information.
ParkerCNGHose is intended for dispenser andvehicleuseat amaximum
temperature of 180°F. Parker CNG Hose should not be used in confined
spaces or unventilatedareas or areas exceeding180°F. Final assemblies
must be tested for leaks. CNG Hose Assemblies should be tested on a
monthly basis for conductivity per AGA 1-93.
Parker manufactures special Hose for aerospace in-flight applications.
Aerospace in-flightapplicationsemployingHosetotransmit fuel, lubricating
fluids and hydraulic fluids require a special Hose with a conductive inner
tube. This Hose for in-flight applications is available only from Parker’s
StratoflexProductsDivision. Donot useany other Parker Hose for in-flight
applications, even if electricallyconductive.Useof otherHoses for in-flight
applications or failure to properly connect or ground this Hose can cause
a fire or an explosion resulting in death, personal injury, and property