ASTM F721 - 81(2008)

    Standard Specification for Gage Piping Assemblies

    Active Standard ASTM F721 | Developed by Subcommittee: F25.11

    Book of Standards Volume: 01.07


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    ASTM F721

    Abstract

    This specification covers details of gage piping assemblies for pressure gages with optional provisions for additional gages, pressure switches, transmitters, and so forth, for use with steam, steam drains, feed water, condensate, fresh water, salt water, compressed air, fuel oil, and lubricating oil systems. A siphon shall be used as shown in all gage applications for steam systems to maintain a protective water seal between the gage and the steam supply.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification covers details of gage piping assemblies for pressure gages with optional provisions for additional gages, pressure switches, transmitters, and so forth, for use with steam, steam drains, feed water, condensate, fresh water, salt water, compressed air, fuel oil, and lubricating oil systems.

    1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    A105/A105M Specification for Carbon Steel Forgings for Piping Applications

    A106/A106M Specification for Seamless Carbon Steel Pipe for High-Temperature Service

    A108 Specification for Steel Bar, Carbon and Alloy, Cold-Finished

    A182/A182M Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service

    A276 Specification for Stainless Steel Bars and Shapes

    A335/A335M Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service

    A576 Specification for Steel Bars, Carbon, Hot-Wrought, Special Quality

    B16/B16M Specification for Free-Cutting Brass Rod, Bar and Shapes for Use in Screw Machines

    B61 Specification for Steam or Valve Bronze Castings

    B62 Specification for Composition Bronze or Ounce Metal Castings

    B75 Specification for Seamless Copper Tube

    B124/B124M Specification for Copper and Copper Alloy Forging Rod, Bar, and Shapes

    B453/B453M Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Rod, Bar, and Shapes

    B466/B466M Specification for Seamless Copper-Nickel Pipe and Tube

    Federal Specifications

    QQ-S-763 Steel Bars, Wire, Shapes, and Forgings, Corrosion-Resisting

    American National Standard Institute Standards

    B16.15 Cast Bronze Threaded Fittings


    ICS Code

    ICS Number Code 17.100 (Measurement of force, weight and pressure)

    UNSPSC Code

    UNSPSC Code 40170000(Pipe piping and pipe fittings)


    DOI: 10.1520/F0721-81R08

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