GB/T 12716-2011: Pipe threads with the thread angle of 60 degrees where pressure-tight joints are made on threads

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Scope

This Standard specifies the thread form, basic size, tolerance, marking and gauge of
pipe thread (NPT and NPSC) with sealed thread pair and thread form angle of 60°.
This Standard is applicable to sealed thread connection for pipe, valve, pipe joint, cock,
and other pipe fittings.

Basic Data

Standard ID	GB/T 12716-2011 (GB/T12716-2011)
Description (Translated English)	Pipe threads with the thread angle of 60 degrees where pressure-tight joints are made on threads
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J04
Classification of International Standard	21.040.20
Word Count Estimation	17,113
Date of Issue	2011-12-30
Date of Implementation	2012-10-01
Older Standard (superseded by this standard)	GB/T 12716-2002
Quoted Standard	GB/T 14791
Adopted Standard	ASME Bl.20.2M-2006, MOD
Regulation (derived from)	Announcement of Newly Approved National Standards No. 23 of 2011
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the type tooth angle of 60 ��, vice itself has a threaded sealing pipe threads (NPT and NPSC) of the tooth type, basic dimensions, tolerances, marking and gauges. This standard applies to pipes, valves, fittings, cocks and other piping accessories sealing threaded connections.