P. 473

  Failure or improper selection or improper use of hose, fittings, or related accessories can cause death, personal injury and property damage. Possible consequences of failure or improper selection or improper use of hose, fittings, or related accessories include, but are not limited to:
• Fittings blown off at high speed.
• High velocity fluid discharge.
• Explosion, or burning, of the conveyed fluid.
• Electrocution from high voltage electric power lines
or other sources of electricity.
• Contact with suddenly moving, or falling, objects that are held in position, or moved, by 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
• Sparking, or explosion, while spraying paint or other flammable liquid.
1.1 Scope: This safety guide provides instructions for selecting and using (including assembling, installing and maintaining) hose fittings (including all products commonly called “fittings” or “couplings” for attachment to hose), and related accessories (including crimping machines and tooling). This safety guide is to be used in conjunction with the specific publications for the specific hose, fittings and related accessories that are being considered for use.
1.2 Fail-Safe: Hose and hose assemblies can and do fail. Design all systems in a fail-safe mode, so that failure of the hose or hose assembly or related accessories will not endanger persons or property.
1.3 Distribution: Provide a copy of this safety guide to each person who is responsible for selecting, or using, hose and fittings and related accessories. Do not select, or use, hose and fittings or related accessories without thoroughly understanding this safety guide.
1.4 User Responsibility: Due to the wide variety of operating conditions and uses for hose and fittings and related accessories, RYCO do not represent or warrant that any particular hose or fitting or related accessories is suitable for any specific end use. This safety guide does not analyse all technical parameters that must be considered in selecting a product. The product user, through its own analysis and testing, is solely responsible for:
• The final selection of the hose and fittings and related accessories.
• Assuming that requirements are met and the use presents no health or safety hazards.
• Providing all appropriate health and safety warnings where hose and fittings and related accessories are used.
1.5 Additional Questions: Contact the RYCO Hydraulics Technical Department if you have any questions or require any additional information.
2.1 Electrical Conductivity: Certain applications require that a hose be non-conductive to prevent electrical current flow. Other applications require the hose 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. For applications that require hose to be electrically non-conductive, including but not limited to applications near high voltage electric lines, only special non- conductive hose can be used. The manufacturer of the equipment must be consulted to be certain that the hose and fittings selected are correct for the application. Do not use any RYCO hose or fittings for any such application unless:
(i) the application is expressly approved by RYCO
(ii) the hose is both orange colour and marked “non-conductive”
(iii) the manufacturer of the equipment specifically approves the particular RYCO hose and fittings.
Do not use any RYCO hose or fittings for conveying paint in airless spraying or similar applications without the written approval of RYCO in each case. A special hose and fittings assembly is required for this application. If the correct hose and fitting application is not used for this application, static electricity can build up and cause sparks that may result in an explosion and/or fire.
The electrical conductivity or non-conductivity of hose and fittings is dependent upon many factors and may be susceptible to change.
2.2 Pressure: Hose selection must be made so that the published maximum recommended working pressure of the hose is equal or greater than the maximum system pressure. Surge pressures in the system higher than the published maximum recommended working pressure will cause failure, or shorten hose life.
2.3 Suction: Hoses used for suction applications must be selected to ensure that the hose will withstand the vacuum and pressure of the system.
2.4 Temperature: Be certain that fluid and ambient temperatures, both steady and transient, do not exceed the limitations of the hose. Care must be taken when routing hose near hot objects such as manifolds.
2.5 Fluid Compatibility: Hose selection must assure compatibility of the hose tube, cover, reinforcement, and fittings with the fluid media used.

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