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Parker Safety Guide for Selecting and Using Hose, Tubing, Fittings and Related Accessories Catalog 3501E ! 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. � Dangerously whipping Hose. � High velocity fluid discharge. � Contact with conveyed fluids that may be hot, cold, toxic or otherwise injurious. � Explosion or burning of the conveyed fluid. � Sparking or explosion caused by static electricity buildup or other � Electrocution from high voltage electric powerlines. sources of electricity. � Contact with suddenly moving or falling objects that are controlled by � Sparking or explosion while spraying paint or flammable liquids. the conveyed fluid. � Injuries resulting from inhalation, ingestion or exposure to fluids. � Injections by high-pressure fluid discharge. 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 where static electricity buildup may occur. Parker CNG Hose assemblies comply with AGA 1.1 Scope: This safety guide provides instructionsfor selecting and using (including assembling,Requirements 1-93,"Hoses for Natural GasVehiclesand Fuel Dispensers". This Hose is labeled installing, and maintaining) these Products. For convenience, all rubber and/or thermoplastic"Electrically Conductive for CNG Use" on itslayline and packaging. This Hose must be properly products commonly called "hose" or"tubing" are called "Hose" in this safetyguide. All assembliesconnected to the appropriate Parker Fittings and properly grounded in order to dissipate made with Hose are called"Hose Assemblies". All products commonly called"fittings" ordangerous staticcharge buildup, which occurs in, for example, high velocity CNG dispensing or "couplings" are called "Fittings". All related accessories (including crimping and swaging machinestransfer. Donot useany other Hose for CNG applications wherestatic charge buildup may occur, and tooling) are called "Related Accessories". This safety guide is a supplement to and is to beeven if electrically conductive. Use of other Hoses in CNG applications or failure to properly used with, the specific Parker publications for the specific Hose, Fittings and Related Accessoriesconnect or groundthis Hose can cause a fire or an explosion resulting in death, personal injury, that are being considered for use. and property damage. Care must also be taken to protect against CNG permeation through the 1.2 Fail-Safe: Hose, and Hose Assemblies and Fittings canand do fail without warning for manyHose wall. See section 2.6, Permeation, for more information. Parker CNGHose is intended for reasons. Design all systems andequipment in afail-safe mode, so that failure ofthe Hose ordispenser and vehicle use at a maximum temperature of 180�F. Parker CNG Hose should not be Hose Assembly or Fitting will not endanger persons or property. used in confined spaces orunventilated areasor areas exceeding 180�F. Final assemblies must 1.3 Distribution: Provide a copyof this safetyguide to eachperson that isresponsible for selecting orbe tested for leaks. CNG Hose Assemblies should betested on a monthly basis for conductivity using Hose and Fitting products. Do not select or use Parker Hose or Fittings without thoroughlyper AGA 1-93. reading and understanding this safety guide as well as the specific Parker publications for theParker manufacturers special Hose for aerospace in flight applications. Aerospace in flight products considered or selected. applications employing Hose to transmit fuel, lubricating fluids and hydraulic fluids require a 1.4 User Responsibility: Due to the wide variety ofoperating conditions and applications for Hosespecial Hose with aconductive inner tube. This Hose for in flight applications is available only from and Fittings, Parker and its distributors do not represent or warrant that any particular Hose orParker's Stratoflex Products Division. Do not use any other Parker Hose for in flight applications, Fitting is suitable for any specificend usesystem. This safety guidedoes not analyze all technicaleven if electrically conductive. Use of other Hoses for in flight applications or failure to properly parameters that must be considered in selecting a product. The user, through itsown analysis andconnect or groundthis Hose can cause afire or an explosion resulting in death, personal injury , testing, is solelyresponsible for: and property damage. TheseHose assemblies for in flight applications must meetallapplicable � Making the final selection of the Hose and Fitting. aerospace industry, aircraft engine, and aircraft requirements. � Assuring that the user's requirements are met and that the application presents no health or2.2 Pressure: Hose selection must be madeso thatthe published maximum recommended working safetyhazards. pressure of the Hose is equal to or greater than the maximum system pressure. Surgepressures � Providing all appropriate health and safety warnings on the equipment on which theHose andor peak transient pressures in the system must be below the published maximum working Fittings are used. pressure for the Hose. Surge pressures and peak pressures can usually only be determined by � Assuring compliance with all applicable government and industry standards.sensitive electrical instrumentation that measures and indicates pressures at millisecondintervals. 1.5 Additional Questions: Call the appropriate Parker technical service department if you have anyMechanicalpressure gauges indicate only average pressures and cannot be used to determine questions or require any additional information. See the Parker publication for the product beingsurge pressures orpeak transientpressures. Published burst pressure ratings for Hose is for considered orused, or call 1-800-CPARKER, or go to www.parker.com, for telephone numbers ofmanufacturing test purposes only and is no indication that the Product can be used in applications the appropriate technical service department. at theburst pressure or otherwise above the published maximum recommended working pressure. 2.0 HOSE AND FITTING SELECTION INSTRUCTIONS 2.3 Suction: Hoses used for suction applications must be selected to insure that the Hose will 2.1 Electrical Conductivity: Certainapplicationsrequire that the Hose be nonconductive topreventwithstand the vacuum and pressure of the system. Improperly selected Hosemaycollapse in electrical current flow. Other applications require the Hose and the Fitting and the Hose/Fittingsuction application. interface tobe sufficiently conductive to drainoff static electricity. Extreme care must be exercised2.4 Temperature: Be certain that fluidand ambient temperatures, both steady and transient,do not when selecting Hose andFittings for these or any other applications in which electrical conductivityexceed the limitations of the Hose. Temperatures below and abovethe recommended limitcan or nonconductivity is a factor. degrade Hose to a point where a failure may occur and release fluid. Properly insulate andprotect The electrical conductivityor nonconductivity of Hose and Fittings is dependent upon many factorsthe Hose Assembly when routingnearhot objects (e.g. manifolds). Do not use any Hose in any and may besusceptible to change. These factors include but are not limited to the variousapplication where failure of the Hose could result inthe conveyed fluids (orvapors or mist from the materials used to make the Hose and the Fittings, Fitting finish (some Fitting finishes areconveyedfluids) contacting any open flame, molten metal, or other potentialfire ignition source electrically conductive while others are nonconductive), manufacturing methods (includingthat could cause burning or explosion of the conveyed fluids or vapors. moisture control), how the Fittings contact the Hose, age and amount of deterioration or damage2.5 Fluid Compatibility: Hose Assembly selection mustassurecompatibility of the Hose tube, cover, or other changes, moisture content of the Hose at any particular time, and other factors.reinforcement, and Fittings with the fluid media used. See the fluid compatibility chart in the The following are considerations for electrically nonconductive and conductive Hose. For otherParker publication for the product being considered or used. This information is offered only as a applications consult the individual catalog pages andthe appropriate industry orregulatoryguide. Actual service life can only be determined by the end user by testing under all extreme standards for proper selection. conditions and other analysis. 2.1.1 Electrically Nonconductive Hose: Certain applications requirethat the Hose be nonconductiveHose that is chemically compatiblewith a particular fluid must beassembled using Fittingsand to prevent electricalcurrent flow or to maintain electrical isolation. For these applications thatadapters containing likewisecompatible seals. require Hose to be electricallynonconductive, including but not limitedto applications near high2.6 Permeation: Permeation (that is, seepage through the Hose) will occur from inside the Hose to voltageelectric lines, only specialnonconductive Hose can be used. The manufacturer of theoutside when Hose is used with gases, liquid and gas fuels, and refrigerants (including but not equipment in which the nonconductive Hose is to be used must be consulted to be certain that thelimited to such materials as helium, diesel fuel, gasoline, natural gas, or LPG). This permeation Hose and Fittings that are selected are proper for the application. Do not use any Parker Hose ormay result inhigh concentrations of vapors which are potentially flammable, explosive, or toxic, Fitting for any such application requiring nonconductive Hose, including but not limited toand in loss of fluid. Dangerous explosions, fires, and other hazards can result when using the applications near high voltage electric lines, unless (i) the application is expressly approved in thewrong Hosefor such applications. The systemdesigner must take into account the fact that this Parker technical publication for the product, (ii) the Hose is marked "nonconductive", and (iii) thepermeation will take place andmustnot useHose if this permeation could be hazardous. The manufacturer of the equipment on which the Hose is to be used specifically approves the particularsystem designer must take into account all legal, government, insurance, or any other special Parker Hose and Fitting for such use. regulations which governthe useof fuels and refrigerants. Never use a Hose even thoughthe fluid 2.1.2 Electrically Conductive Hose: Parker manufacturers special Hose for certain applications thatcompatibility is acceptable withoutconsidering the potential hazardous effects that can result from N require electrically conductive Hose. permeation through the Hose Assembly. Parker manufacturesspecial Hose for conveying paint in airlesspaint spraying applications. ThisPermeation ofmoisture from outside the Hose to inside the Hose will also occur in Hose Hose is labeled "ElectricallyConductive Airless Paint Spray Hose"on its laylineand packaging.assemblies, regardlessof internal pressure. If this moisturepermeation would have detrimental This Hose must beproperly connected to the appropriate Parker Fittings and properly grounded ineffects(particularly, but notlimited torefrigeration and air conditioning systems), incorporation of order to dissipate dangerous static charge buildup, which occurs in all airless paint sprayingsufficient drying capacity in the system or other appropriate system safeguards should be selected applications. Do not use any other Hosefor airless paint spraying, evenif electrically conductive.and used. Useof any other Hose or failure to properly connectthe Hose can causea fire or an explosion2.7 Size: Transmission ofpower bymeansof pressurized fluid varies with pressure and rate offlow. resultingin death, personal injury, and property damage. The sizeof the components must be adequate to keep pressure losses to a minimum and avoid Parker manufacturesa special Hosefor certain compressed natural gas("CNG") applicationsdamage due to heatgeneration or excessive fluid velocity. Parker Hannifin Corporation N10 Parker Brass Products Division Otsego, Michigan Parker Safety Guide for Selecting and Using Hose, Tubing, Fittings and Related Accessories
Goodyear Rubber Products
