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NFPA T3.6.68

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Fluid power – Square head cylinders – Determination of the static failurepressure rating of pressurecontaining components
2010 Edition, September 28, 2010
Includes all amendments and changes through Reaffirmation Notice , 2015

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Description

  • Revision:2010 Edition, September 28, 2010
  • Published Date:January 2015
  • Status:Active, Most Current
  • Document Language:English
  • Published By:National Fluid Power Association ((NFPA))
  • Page Count:8
  • ANSI Approved:No
  • DoD Adopted:No
  • This recommended standard covers tie rod constructed square head industrial fluid power cylinders which apply to NFPA/T3.6.7 and provides requirements and design parameters for the determination of the theoretical static failure pressure rating of pressure containing components. It also provides guidance on material selection.

    It is recognized that cylinder mountings, rod buckling, etc. are pertinent to proper cylinder application; but they are considered beyond the scope of this document.

    The information contained in this document is intended to

    a) establish a basic method for calculating the static failure pressure rating of a cylinder which will be consistent and understandable to both the manufacturer and the user, but is in no way intended to imply the maximum operating pressure of the cylinder;

    b) allow the user or manufacturer to apply or recommend whatever safety factor deemed necessary and consistent with the intended use of the cylinder;

    c) allow manufacturers freedom of design in cylinders without restricting the advancement of the art while still providing basic guidelines that will assure users that adequate safeguards are present.