Page 299 - untitled

293

Parker Hannifin Corporation

Parflex Division

Ravenna, Ohio

Coiled Air Hose,

Fittings

& Accessories

Hydraulic &

Pneumatic

Hose & Fit.

PTFE

Hose &

Fittings

The

rmoplastic

Tu

bing

Truck (Fleet)

Products

Tooling &

Equipment

Hose

Accessories

Technical &

Design

Information

Approvals &

Guides

Alphanumeric

Index

Parker Safety Guide

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 con-

trolled by the conveyed fluid.

• Injections by high-pressure fluid discharge.

• Dangerously whipping Hose.

• Contact with conveyed fluids that may be hot, cold, toxic or oth-

erwise 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 flu-

ids.

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, 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 prod-

ucts 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, and 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 that is

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 publi-

cations 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 aremet and that the applica-

tion presents no health or safety hazards.

• Providing all appropriate health and safety warnings on the equip-

ment 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 you have any questions or require any additional infor-

mation. 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

HOSE AND FITTING 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 Fitting and the Hose/Fitting interface to be

sufficiently conductive to drain off static electricity. Extreme caremust

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 uponmany factors andmay 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 conductivewhileothersarenonconductive),manufacturing

methods (includingmoisturecontrol), howtheFittingscontact theHose,

age andamount of deteriorationor 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 ElectricallyNonconductiveHose

: Certain applications require that the

Hose be nonconductive to prevent electrical current flowor tomaintain

electrical isolation. For these applications that require Hose to be

electrically nonconductive, including but not limited to applications

near highvoltageelectric lines, only special nonconductiveHosecanbe

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 nonconduc-

tive 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 Fitting for such use.

2.1.2 Electrically Conductive Hose

: Parker manufacturers 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 Hosemust

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.

ParkermanufacturesaspecialHose forcertaincompressednatural gas

(“CNG”) applicationswhere static electricity buildupmay occur. Parker

CNG Hose assemblies comply with AGA Requirements 1-93, “Hoses

for Natural Gas Vehicles and Fuel Dispensers”. This Hose is labeled

“ElectricallyConductive forCNGUse” on its laylineandpackaging. 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.

ParkerCNGHoseshouldnot beused inconfinedspacesorunventilated

areas or areas exceeding 180°F. Final assemblies must be tested for

leaks. CNG Hose Assemblies should be tested on a monthly basis for

conductivity per AGA 1-93.

ParkermanufacturersspecialHose for aerospace inflight applications.

Aerospace in flight applications employing Hose to transmit fuel,

!