Parker Hannifin Corporation
Hose Products Division
Wickliffe, OH
17
Bulletin 4480-T30-US
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”, “couplings” or “adapters” 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. Parker publications are available at www.parker.com. SAE J1273
(www.sae.org) and ISO 17165-2 (www.ansi.org) also provide recommended practices
for hydraulic Hose Assemblies.
1.2 Fail-Safe: Hose, Hose Assemblies and Fittings can and do fail without warning for
many reasons. Design all systems and equipment in a 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 responsible for
selecting or using Hose and Fitting products. Do not select or use Parker Hose or
Fittings without thoroughly reading and understanding this safety guide as well as the
specific Parker publications for the Products.
1.4 User Responsibility: Due to the wide variety of operating conditions and applications
for Hose and Fittings, Parker does 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 Products.
• 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
Products are used.
• Assuring compliance with all applicable government and industry standards.
1.5 Additional Questions: Call the appropriate Parker technical service department if you
have any questions or require any additional information. See the Parker publication for
the Products 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 HOSE AND FITTINGS SELECTION 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 Fittings
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 the Hose and the Fittings, Fitting finish
(some Fitting finishes are electrically 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 applications that require Hose to be electrically 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 Fittings 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 the equipment on which the Hose is to be used specifically
approves the particular Parker Hose and Fittings 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 the requirements of ANSI/IAS NGV 4.2-1999; CSA 12.52-M99, “Hoses for
Natural Gas Vehicles and Dispensing Systems” (www.ansi.org). 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, which occurs in, for example, high velocity
CNG dispensing or 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 the Hose wall. See section
2.6, Permeation, for more information. Parker CNG Hose is intended for dispenser and
vehicle use at a maximum temperature of 180°F (82°C). Parker CNG Hose should not
be used in confined spaces or unventilated areas or areas exceeding 180°F (82°C).
Final assemblies must be tested for leaks. CNG Hose Assemblies should be tested on a
monthly basis for conductivity per ANSI/IAS NGV 4.2-1999; CSA 12.52-M99.
Parker manufactures special Hose for aerospace in-flight applications. Aerospace in-
flight applications employing Hose to transmit 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 Stratoflex Products Division. Do not use any other Parker
Hose for in-flight applications, even if electrically conductive. Use of other Hoses 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 damage. These Hose
assemblies for in-flight applications must meet all applicable aerospace industry, aircraft
engine and aircraft requirements.
2.2 Pressure: Hose selection must be made so that the published maximum working
pressure of the Hose and Fittings are equal to or greater than the maximum system
pressure. The maximum working pressure of a Hose Assembly is the lower of the
respective published maximum working pressures of the Hose and the Fittings used.
Surge pressures or peak transient pressures in the system must be below the published
maximum working pressure for the Hose. Surge pressures and peak pressures can
usually only be determined by sensitive electrical instrumentation that measures and
indicates pressures at millisecond intervals. Mechanical pressure gauges indicate only
average pressures and cannot be used to determine surge pressures or peak transient
pressures. Published burst pressure ratings for Hose is for manufacturing test purposes
only and is no indication that the Product can be used in applications at the burst
pressure or otherwise above the published maximum recommended working pressure.
Safety Guide for Selecting and Using Hose, Fittings and Related Accessories
Before selecting or using any of these Products, it is important that you read and follow the instructions below. Only Hose from Parker’s Stratoflex Products Division is approved for in-flight
aerospace applications.
WARNING: Failure or improper selection or improper use of hose, tubing, assemblies, fittings, quick action couplings 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.
! Parker Safety Guide for Selecting and Using Hose, Tubing, Fittings and Related Accessories
Publication No. 4400-B.1
Revised: August 2007
www.comoso.com
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