Hose
A
Tubing
B
Coiled Air Hose
&
Fittings
C
Transportation
D
Fittings
E
Tooling, Equipment
&
Accessories
F
Parker Hannifin Corporation
| Parflex
®
Division | Ravenna, Ohio |
parker.com/pfd
For detailed ordering information, please consult price list or contact Parflex
®
Division.
General Technical
G
G-63
with appropriate fire resistant materials. Flame or weld spatter could burn
through the Hose and possibly ignite escaping fluid resulting in a catastrophic
failure. Heating of plated parts, including Hose Fittings and adapters, above
450
°F (232°C) such as during welding, brazing or soldering may emit deadly
gases.
2.19
Atomic Radiation:
Atomic radiation affects all materials used in Hose
assemblies. Since the long-term effects may be unknown, do not expose
Hose assemblies to atomic radiation.
2.20
Aerospace Applications:
The only Hose and Fittings that may be
used for in-flight aerospace applications are those available from Parker’s
Stratoflex Products Division. Do not use any other Hose or Fittings for in-
flight applications. Do not use any Hose or Fittings from Parker’s Stratoflex
Products Division with any other Hose or Fittings, unless expressly approved
in writing by the engineering manager or chief engineer of Stratoflex Products
Division and verified by the user’s own testing and inspection to aerospace
industry standards.
2.21
Unlocking Couplings:
Ball locking Couplings or other Fittings with
quick disconnect ability can unintentionally disconnect if they are dragged
over obstructions, or if the sleeve or other disconnect member is bumped or
moved enough to cause disconnect. Threaded Fittings should be considered
where there is a potential for accidental uncoupling.
3.0
HOSE AND FITTINGS ASSEMBLY AND INSTALLATION INSTRUCTIONS
3.1
Component Inspection:
Prior to assembly, a careful examination
of the Hose and Fittings must be performed. All components must be
checked for correct style, size, catalog number, and length. The Hose must
be examined for cleanliness, obstructions, blisters, cover looseness, kinks,
cracks, cuts or any other visible defects. Inspect the Fitting and sealing
surfaces for burrs, nicks, corrosion or other imperfections. Do NOT use any
component that displays any signs of nonconformance.
3.2
Hose and Fitting Assembly:
Do not assemble a Parker Fitting on a
Parker Hose that is not specifically listed by Parker for that Fitting, unless
authorized in writing by the engineering manager or chief engineer of the
appropriate Parker division. Do not assemble a Parker Fitting on another
manufacturer’s Hose or a Parker Hose on another manufacturer’s Fitting
unless (i) the engineering manager or chief engineer of the appropriate Parker
division approves the Assembly in writing or that combination is expressly
approved in the appropriate Parker literature for the specific Parker product,
and (ii) the user verifies the Assembly and the application through analysis
and testing. For Parker Hose that does not specify a Parker Fitting, the user
is solely responsible for the selection of the proper Fitting and Hose Assembly
procedures. See instruction 1.4.
To prevent the possibility of problems such as leakage at the Fitting or system
contamination, it is important to completely remove all debris from the cutting
operation before installation of the Fittings. The Parker published instructions
must be followed for assembling the Fittings on the Hose. These instructions
are provided in the Parker Fitting catalog for the specific Parker Fitting being
used, or by calling 1-800-CPARKER, or at
www.parker.com
.
3.3
Related Accessories:
Do not crimp or swage any Parker Hose or
Fitting with anything but the listed swage or crimp machine and dies in
accordance with Parker published instructions. Do not crimp or swage
another manufacturer’s Fitting with a Parker crimp or swage die unless
authorized in writing by the engineering manager or chief engineer of the
appropriate Parker division.
3.4
Parts:
Do not use any Parker Fitting part (including but not limited to
socket, shell, nipple, or insert) except with the correct Parker mating parts, in
accordance with Parker published instructions, unless authorized in writing by
the engineering manager or chief engineer of the appropriate Parker division.
3.5
Field Attachable/Permanent:
Do not reuse any field attachable Hose
Fitting that has blown or pulled off a Hose. Do not reuse a Parker permanent
Hose Fitting (crimped or swaged) or any part thereof. Complete Hose
Assemblies may only be reused after proper inspection under section 4.0.
Do not assemble Fittings to any previously used hydraulic Hose that was in
service, for use in a fluid power application.
3.6
Pre-Installation Inspection:
Prior to installation, a careful examination
of the Hose Assembly must be performed. Inspect the Hose Assembly for any
damage or defects. DO NOT use any Hose Assembly that displays any signs
of nonconformance.
3.7
Minimum Bend Radius:
Installation of a Hose at less than the
minimum listed bend radius may significantly reduce the Hose life. Particular
attention must be given to preclude sharp bending at the Hose to Fitting
juncture. Any bending during installation at less than the minimum bend
radius must be avoided. If any Hose is kinked during installation, the Hose
must be discarded.
3.8
Twist Angle and Orientation:
Hose Assembly installation must be
such that relative motion of machine components does not produce twisting.
3.9
Securement:
In many applications, it may be necessary to restrain,
protect, or guide the Hose to protect it from damage by unnecessary flexing,
pressure surges, and contact with other mechanical components. Care must
be taken to insure such restraints do not introduce additional stress or wear
points.
3.10
Proper Connection of Ports:
Proper physical installation of the Hose
Assembly requires a correctly installed port connection insuring that no twist
or torque is transferred to the Hose when the Fittings are being tightened or
otherwise during use.
3.11
External Damage:
Proper installation is not complete without insuring
that tensile loads, side loads, kinking, flattening, potential abrasion, thread
damage or damage to sealing surfaces are corrected or eliminated. See
instruction 2.10.
3.12
System Checkout:
All air entrapment must be eliminated and the
system pressurized to the maximum system pressure (at or below the Hose
maximum working pressure) and checked for proper function and freedom
from leaks. Personnel must stay out of potential hazardous areas while
testing and using.
3.13
Routing:
The Hose Assembly should be routed in such a manner so
if a failure does occur, the escaping media will not cause personal injury
or property damage. In addition, if fluid media comes in contact with hot
surfaces, open flame or sparks, a fire or explosion may occur. See section
2.4.
3.14
Ground Fault Equipment Protection Devices (GFEPDs):
WARNING!
Fire and Shock Hazard. To minimize the danger of fire if the heating cable
of a Multitube bundle is damaged or improperly installed, use a Ground Fault
Equipment Protection Device. Electrical fault currents may be insufficient to
trip a conventional circuit breaker.
For ground fault protection, the IEEE 515:1989 (
www.ansi.org)
standard for
heating cables recommends the use of GFEPDs with a nominal 30 milliampere
trip level for “piping systems in classified areas, those areas requiring a
high degree of maintenance, or which may be exposed to physical abuse or
corrosive atmospheres”.
4.0
HOSE AND FITTING MAINTENANCE AND REPLACEMENT
INSTRUCTIONS
4.1
Even with proper selection and installation, Hose life may be
significantly reduced without a continuing maintenance program. The
severity of the application, risk potential from a possible Hose failure, and
experience with any Hose failures in the application or in similar applications
should determine the frequency of the inspection and the replacement for
the Products so that Products are replaced before any failure occurs. A
maintenance program must be established and followed by the user and, at
minimum, must include instructions 4.2 through 4.7.
4.2
Visual Inspection Hose/Fitting:
Any of the following conditions
require immediate shut down and replacement of the Hose Assembly:
•
Fitting slippage on Hose;
•
Damaged, cracked, cut or abraded cover (any reinforcement
exposed);
•
Hard, stiff, heat cracked, or charred Hose;
•
Cracked, damaged, or badly corroded Fittings;
•
Leaks at Fitting or in Hose;
•
Kinked, crushed, flattened or twisted Hose; and
•
Blistered, soft, degraded, or loose cover.
4.3
Visual Inspection All Other:
The following items must be tightened,
repaired, corrected or replaced as required:
•
Leaking port conditions;
•
Excess dirt buildup;
•
Worn clamps, guards or shields; and
•
System fluid level, fluid type, and any air entrapment.