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ASME B1.20.1

Pipe Threads, General Purpose (Inch)

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Organization: ASME
Publication Date: 15 November 2013
Status: active
Page Count: 40
scope:

This Standard covers dimensions and gaging of pipe threads of the following series:

NPT

NPSC

NPTR

NPSM

NPSL

Document History

ASME B1.20.1
November 15, 2013
Pipe Threads, General Purpose (Inch)
This Standard covers dimensions and gaging of pipe threads of the following series: NPT NPSC NPTR NPSM NPSL
ASME B1.20.1
August 31, 1983
Pipe Threads, General Purpose (Inch)
This American National Standard covers dimensions and gaging of pipe threads for general purpose applications.

References

This document references:
ASME B1.2 - Gages and Gaging for Unified Inch Screw Threads
Published by ASME on January 1, 1983
INTRODUCTION This Standard providese ssentials pecificationsa nd dimensions for the gages used on Unified inch screw threads (UN and UNR thread form), and covers the specifications and dimensions for...
This document references:
ASME B1.20.3 - Dryseal Pipe Threads (Inch)
Published by ASME on January 1, 1976
Dryseal pipe threads are based on the USA (American) pipe thread, however, they differ from the USA (American) pipe thread in that they are designed to seal pressuretight joints without the necessity...
This document references:
ASME B1.20.7 - Hose Coupling Screw Threads (Inch)
Published by ASME on January 1, 1991
The purpose of this document is to provide standards for application to the threaded parts of hose couplings, valves, nozzles, and all other fittings used in direct connection with hose intended for...
This document references:
ASME B1.30 - Screw Threads: Standard Practice for Calculating and Rounding Dimensions
Published by ASME on January 1, 2002
The American National Standards Committee B1 for standardization of screw threads was organized in 1920 as sectional Committee B1 under the sponsorship of the American Engineering Standards Committee...
This document references:
ASME B1.7 - Screw Threads: Nomenclature, Definitions, and Letter Symbols
Published by ASME on November 17, 2006
The purpose of this Standard is to establish a uniform practice for standard screw threads with regard to the following: (a) screw thread nomenclature (b) letter symbols for the designating features...
This document is referenced by:
ASME B16.14 - Ferrous Pipe Plugs, Bushings, and Locknuts With Pipe Threads
Published by ASME on September 10, 2018
This Standard covers the following: (a) pressure–temperature ratings (b) size (c) marking (d) materials (e) dimensions and tolerances (f) threading (g) pattern taper
This document is referenced by:
AWWA C714 - Cold-Water Meters for Residential Fire Sprinkler Systems in One- and TwoFamily Dwellings and Manufactured Homes
Published by AWWA on June 7, 2019
This standard describes cold-water meters used for residential fire sprinkler applications that meet the requirements of NFPA* 13D in one- and two-family dwellings and manufactured homes, in sizes ¾...
This document is referenced by:
FMAPPROVAL 1230 - Anti-Water Hammer Check Valves
Published by FM on December 1, 2013
This standard encompasses the design and performance requirements for 2, 2-1/2, 3, 3-1/2, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, and 24 inch nominal size anti-water hammer check valves. The intended...
This document is referenced by:
DIN EN 1983 - Industrial valves - Steel ball valves; German version EN 1983:2013
Published by DIN on December 1, 2013
Diese Europäische Norm legt Anforderungen an industrielle Kugelhähne aus Stahl mit Flansch-, Gewinde-, Schweißmuffen- oder Anschweißenden fest. Der Bereich der Nennweiten ist: — DN 4; DN 6; DN 8; DN...
This document is referenced by:
DIN EN 13547 - Industrial valves - Copper alloy ball valves; German version EN 13547:2013
Published by DIN on December 1, 2013
Diese Europäische Norm gilt für Kugelhähne aus Kupferlegierungen für allgemeine Anwendungsfälle mit Flansch-, Gewinde-, Kapillarlöt- oder Klemmanschluss oder Gehäusen mit losen...
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