Owner's manual

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Safety Guide

for Selecting and Using Hose Assemblies and Fittings

Summary of content (12 pages)

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Safety Guide for Selecting and Using Hose Assemblies and Fittings
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Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Scope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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—— Crystal Safety Guide for Using Hose Assemblies and Fittings  1 INTRODUCTION !!WARNING: Failure or improper selection or improper use of Hose Assemblies, or fittings (“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.
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Crystal Safety Guide for Using Hose Assemblies and Fittings  2 User Responsibility Due to the wide variety of operating conditions and applications for Hose Assemblies and Fittings, Crystal Engineering and its distributors do not represent or warrant that any particular Hose Assembly 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.
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Crystal Safety Guide for Using Hose Assemblies and Fittings  3 CNG Applications: Crystal Engineering does not manufacture special Hose Assemblies for certain compressed natural gas (“CNG”) applications where static electricity buildup may occur. These Hose Assemblies must be properly connected to the appropriate Fittings and properly grounded in order to dissipate dangerous static charge buildup, which occurs in, for example, high velocity CNG dispensing or transfer.
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Crystal Safety Guide for Using Hose Assemblies and Fittings  4 Fluid Compatibility Hose Assembly selection must assure compatibility of the Hose Assemblies tube, cover, reinforcement, and Fittings with the fluid media used. Actual service life can only be determined by the end user by testing under all extreme conditions and other analysis.
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Crystal Safety Guide for Using Hose Assemblies and Fittings  5 Physical Damage Care must be taken to protect Hose Assemblies from wear, snagging, kinking, bending smaller than minimum bend radius, and cutting, any of which can cause premature Hose Assembly failure. Any Hose Assembly that has been kinked or bent to a radius smaller than the minimum bend radius and any Hose Assembly that has been cut or is cracked or is otherwise damaged, should be removed and discarded.
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—— Crystal Safety Guide for Using Hose Assemblies and Fittings  6 USE OF HOSE ASSEMBLIES AND FITTINGS Component Inspection Prior to use, a careful examination of the Hose Assemblies and Fittings must be performed. All components must be checked for correct style and size, part number, and length. The Hose Assemblies must be examined for cleanliness, obstructions, blisters, cover looseness, kinks, cracks, cuts or any other visible defects.
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Crystal Safety Guide for Using Hose Assemblies and Fittings  7 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 Assembly when the Fittings are being tightened or otherwise during use.
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Crystal Safety Guide for Using Hose Assemblies and Fittings  8 Visual Inspection - All Other The following items must be tightened, repaired, corrected or replaced as required: • • • • • Leaking port conditions; Damaged, cracked, cut or abraded o-rings (internal or external); Excess dirt buildup; Worn clamps, guards or shields; and System fluid level, fluid type, and any air entrapment (hydraulic applications).
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Crystal Safety Guide for Using Hose Assemblies and Fittings  9 Elastomeric (o-ring) Seals Elastomeric (o-ring) seals will eventually age, harden, wear and deteriorate under thermal cycling and compression set. Elastomeric seals should be inspected and replaced. Refrigerant Gases Special care should be taken when working with refrigeration systems.