title

Aviso:

Las normas ASTM en lectura se visualizan a través del área de cliente. Los archivos no se pueden descargar

Fecha de anulación:

2020-11-01

Anulada

Idiomas disponibles:

Inglés

Resumen:

This specification establishes requirements for dimensions and gaging of taper pipe threads used on threaded plastic pipe and fittings. The type of pipe threads are designated by specifying in sequence the nominal pipe size, number of threads per inch, and the thread series symbols as follows. For left-hand threads add LH to the designation, otherwise right-hand threads will be understood. Different physical properties of pipe threads such as form, dimensions, angle, truncation, height, sealing capacity, and tightness shall be in accordance with the requirements specified. The gages have two types which may be used to completely cover gage requirements: (1) master gages used to check working gages; and (2) working gages used to check threads during manufacture and for conformance inspection. Both external and internal taper threads shall be gaged.

Keywords:

fitting threads; pipe threads; plastic pipe threads; taper pipe threads; threads ;

Scope:

1.1 This specification establishes requirements for dimensions and gaging of taper pipe threads used on threaded plastic pipe and fittings.

1.2 Threads meeting this specification shall only be used on those plastic materials deemed suitable by the manufacturer.

1.3 Specialty threads or threads not requiring a leak-tight joint are not covered in this specification.

Note 1: The terms “wrench makeup” and “wrench tight” are standard terminology for tightness and do not imply using a pipe wrench or other tools which would damage plastic pipe and fittings. The terms “hand-tight” and “hand-tight engagement” refer only to thread gaging (not pipe and fitting connections) and is the definition of the L₁ gage length.

1.4 Thread Designations—The type of pipe threads included in this specification are designated by specifying in sequence the nominal pipe size, number of threads per inch, and the thread series symbols as follows in accordance with ANSI/ASME B 1.20.1: ³/₈-18 NPT. For left-hand threads add LH to the end of the designation, otherwise right-hand threads will be understood. For example: ³/₈-18 NPT-LH.

1.4.1 Each of these letters in the symbol has a definite significance as follows:

N	=	National (American Standard)
P	=	Pipe
T	=	Taper

1.5 The values stated in inch-pound units are to be regarded as the standard. No other units of measurement are included in this standard.

1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific precautionary statements, see 7.2.1 and 8.3.

1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ICS:

23.040.20 - Canalizaciones de materiales plásticos

CTN:

F17.10 - F17.10

Otras Relaciones

Es referenciada por D2609-24

Es referenciada por F628 - 24

Es referenciada por F645 - 25

Es referenciada por F3687 - 24

Es referenciada por F1970 - 24

Es referenciada por D2122-22

Es referenciada por F3371-22

Es referenciada por D2749-22

Es referenciada por F1412-22

Es referenciada por F2735-23

Es referenciada por F1901-22

Es referenciada por D3311-22

Es referenciada por F2159-23A

Es referenciada por F0409-22

Es referenciada por D2665 - 25

Es referenciada por F2390-21

Es referenciada por F3536-22

Es referenciada por F2135-01R22

Es referenciada por F1673-10R21E01

Es referenciada por D2466-24

ASTM F1498 - 08(2020)

Normas citadas

Libros relacionados

Normas relacionadas

Colecciones temáticas relacionadas