Pressure, Vacuum, Temperature – Crystal CPF High Pressure Hose and Fittings User Manual

Page 5

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Crystal Safety Guide for Using Hose Assemblies and Fittings

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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. Do not use any Crystal Engineering Hose Assemblies
for CNG applications where static charge buildup may occur. Use of Crystal Engineering Hose Assemblies in CNG applications or failure to properly connect
or ground this Hose Assemblies 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 Assemblies wall.

Aerospace Use:

Crystal Engineering does not manufacture special Hose Assemblies for aerospace in flight applications. Aerospace in flight applications em-

ploying Hose Assemblies to transmit fuel, lubricating fluids and hydraulic fluids require a special Hose Assemblies with a conductive inner tube. Use of other
Hose Assemblies for in flight applications or failure to properly connect or ground this Hose Assemblies can cause a fire or an explosion resulting in death, per-
sonal injury, and property damage. These Hose Assemblies for in flight applications must meet all applicable aerospace industry, aircraft engine, and aircraft
requirements.

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Electrically Nonconductive Hose Assemblies

Certain applications require that the Hose Assemblies be nonconductive to prevent electrical current flow or to maintain electrical isolation. Do not use any
Crystal Engineering Hose Assemblies or Fitting for any such application requiring nonconductive Hose Assemblies, including but not limited to applications
near high voltage electric lines. For these applications that require Hose Assemblies to be electrically nonconductive, including but not limited to applications
near high voltage electric lines, only special nonconductive Hose Assemblies can be used. The manufacturer of the equipment in which the nonconductive
Hose Assemblies is to be used must be consulted to be certain that the Hose Assemblies and Fittings that are selected are proper for the application.

Pressure

Hose Assembly selection must be made so that the published maximum allowable working pressure (MAWP) of the Hose Assemblies is equal to or greater
than the maximum system pressure. Surge pressures or peak transient pressures in the system must be below the published maximum allowable working
pressure (MAWP) for the Hose Assemblies. Surge pressures and peak pressures can usually only be determined by sensitive electrical instrumentation that
measures and indicates pressures at millisecond intervals. Mechanical pressure gauges indicate only average pressures and cannot be used to determine
surge pressures or peak transient pressures. Published burst pressure ratings for Hose Assemblies is for manufacturing test purposes only and is no indication
that the Product can be used in applications at the burst pressure or otherwise above the published maximum allowable working pressure (MAWP).

Vacuum

Hose Assemblies used for suction applications must be selected to insure that the Hose Assemblies will withstand the vacuum and pressure of the system.

Temperature

Be certain that fluid and ambient temperatures, both steady and transient, do not exceed the limitations of the Hose Assemblies. Temperatures below and
above the recommended limit can degrade Hose Assemblies to a point where a failure may occur and release fluid. Properly insulate and protect the Hose As-
semblies when routing near hot objects (e.g. manifolds). Do not use any Hose Assemblies in any application where failure of the Hose Assemblies could result
in the conveyed fluids (or vapors or mist from the conveyed fluids) contacting any open flame, molten metal, or other potential fire ignition source that could
cause burning or explosion of the conveyed fluids or vapors.

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