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MSS SP 44

Steel Pipeline Flanges

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Organization: MSS
Publication Date: 1 January 2016
Status: inactive
Page Count: 50
scope:

General This Standard Practice covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for steel pipeline flanges. The welding neck type flanges shall be forged steel, and the blind flanges may be made from either forged steel or from steel plate.

Dimensional and tolerance requirements for NPS 10 and smaller are provided by reference to ASME B16.5. When such flanges are produced from materials meeting Table 2 requirements, and meet all other stipulations of this Standard Practice, then they shall be considered as complying therewith.

Document History

MSS SP 44
January 1, 2019
Steel Pipeline Flanges
General This Standard Practice covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for steel pipeline flanges. The welding neck type flanges shall be forged...
MSS SP 44
January 1, 2016
Steel Pipeline Flanges
General This Standard Practice covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for steel pipeline flanges. The welding neck type flanges shall be forged...
MSS SP 44
January 1, 2016
Steel Pipeline Flanges
General This Standard Practice covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for steel pipeline flanges. The welding neck type flanges shall be forged...
MSS SP 44
January 1, 2016
Steel Pipeline Flanges
General This Standard Practice covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for steel pipeline flanges. The welding neck type flanges shall be forged...
MSS SP 44
May 20, 2011
Steel Pipeline Flanges
General This Standard Practice covers pressure-temperature ratings, materials, dimen-sions, tolerances (by reference to ASME B16.5), marking and testing. The welding neck type flanges shall be forged...
MSS SP 44
January 1, 2010
Steel Pipeline Flanges
General This Standard Practice covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing. The welding neck type flanges shall be forged steel, and the blind flanges...
MSS SP 44
January 1, 2010
Steel Pipeline Flanges
General This Standard Practice covers pressure-temperature ratings, materials, dimen-sions, tolerances (by reference to ASME B16.5), marking and testing. The welding neck type flanges shall be forged...
MSS SP 44
January 1, 2006
Steel Pipeline Flanges
General This Standard Practice covers pressure-temperature ratings, materials, dimensions, tolerances (by reference to ASME B16.5), marking and testing. The welding neck type flanges shall be forged...
MSS SP 44
January 1, 1996
Steel Pipeline Flanges; Errata - 1996
A description is not available for this item.
MSS SP 44
January 1, 1996
Steel Pipeline Flanges
A description is not available for this item.
MSS SP 44
January 1, 1991
Steel Pipe Line Flanges
General — This standard covers pressuretemperature ratings, materials, dimensions, tolerances (by reference to ASME/ANSI B16.5), marking and testing. The welding neck type flanges shall be forged...
MSS SP 44
January 1, 1990
Steel Pipeline Flanges
A description is not available for this item.
MSS SP 44
January 1, 1985
Steel Pipe Line Flanges
General This standard covers pressure temperature ratings, materials, dimensions, tolerances (by reference to ANSI B16.5),. Marking and testing. The welding neck type flanges shall be forged steel,...
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References

This document references:
ASME B16.5 - Pipe Flanges and Flanged Fittings NPS ½ Through NPS 24 Metric/Inch Standard
Published by ASME on January 1, 2020
(a) This Standard covers pressure–temperature ratings, materials, dimensions, tolerances, marking, testing, and methods of designating openings for pipe flanges and flanged fittings. Included are (1)...
This document references:
API SPEC 5L - Line Pipe
Published by API on April 1, 2018
Coverage This specification specifies requirements for the manufacture of two product specification levels (PSL 1 and PSL 2) of seamless and welded steel pipe for use in pipeline transportation...
This document references:
ASME B1.1 - Unified Inch Screw Threads (UN and UNR Thread Form)
Published by ASME on January 1, 2019
This Standard specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads. (In order to emphasize that unified screw threads are based on inch modules,...
This document references:
ASME B16.1 - Gray Iron Pipe Flanges and Flanged Fittings Classes 25, 125, and 250
Published by ASME on November 9, 2020
This Standard covers Classes 25, 125, and 250 Gray Iron Pipe Flanges and Flanged Fittings. It includes (a) pressure–temperature ratings (b) sizes and method of designating openings of reducing...
This document references:
ASME B16.20 - Metallic Gaskets for Pipe Flanges
Published by ASME on December 29, 2017
This Standard covers materials, dimensions, tolerances, and markings for metal ring-joint gaskets, spiral-wound metal gaskets, metal-jacketed gaskets, and grooved metal gaskets with covering layers....
This document references:
ASME B16.47 - Large Diameter Steel Flanges NPS 26 Through NPS 60 Metric/Inch Standard
Published by ASME on January 1, 2020
This Standard covers pressure–temperature ratings, materials, dimensions, tolerances, marking, and testing for pipe flanges in sizes NPS 26 through NPS 60. Included are flanges with rating class...
This document references:
ASME B16.5 - Pipe Flanges and Flanged Fittings NPS ½ Through NPS 24 Metric/Inch Standard
Published by ASME on January 1, 2020
(a) This Standard covers pressure–temperature ratings, materials, dimensions, tolerances, marking, testing, and methods of designating openings for pipe flanges and flanged fittings. Included are (1)...
This document is referenced by:
ISO 13623 - Petroleum and natural gas industries - Pipeline transportation systems
Published by ISO on September 1, 2017
This document specifies requirements and gives recommendations for the design, materials, construction, testing, operation, maintenance and abandonment of pipeline systems used for transportation in...
This document is referenced by:
SP-152 - Knife Gate Valves for Double Block and Bleed
Published by MSS on January 1, 2022
SCOPE AND FIELD OF APPLICATION This Standard Practice covers cast or fabricated, bonneted or bonnetless knife gate valves designed and manufactured to serve as a “Double Block and Bleed”(a) single...
This document is referenced by:
UFGS-22 00 00 - PLUMBING, GENERAL PURPOSE
Published by NAVY on November 1, 2011
NOTE: This guide specification covers the requirements for general purpose plumbing systems including plumbing fixtures, equipment, and piping which is located within, on, under, and adjacent to...
This document is referenced by:
MSS SP 122 - Plastic Industrial Ball Valves
Published by MSS on January 1, 2017
This Standard Practice establishes requirements for plastic industrial ball valves in nominal pipe sizes (NPS) 1/2 through NPS 6, designed for general industrial systems for the distribution of...
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