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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: 52
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:
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 is referenced by:
IAPMO CPC - CALIFORNIA PLUMBING CODE
Published by IAPMO on January 1, 2019
The provisions of this code shall apply to the construction, alteration, movement, enlargement, replacement, repair, equipment, use and occupancy, location, maintenance, removal, and demolition of...
This document is referenced by:
MSS SP 6 - Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings
Published by MSS on January 1, 2017
This Standard Practice pertains to the finish of gasket contact faces of pipe flanges and connectingend flanges of valves and fittings. This Standard Practice is intended for applications to products...
This document is referenced by:
MSS SP 111 - Gray-Iron and Ductile-Iron Tapping Sleeves
Published by MSS on January 1, 2020
This Standard Practice covers the performance and design requirements of gray-iron or ductile-iron tapping sleeves used in water and sewage systems. Tapping sleeves are used with tapping valves to...
This document is referenced by:
API STD 609 - Butterfly Valves: Double-flanged, Lug-and Wafer-type
Published by API on February 1, 2016
This standard covers design, materials, face-to-face dimensions, pressure-temperature ratings, and examination, inspection and test requirements for gray iron, ductile iron, bronze, steel,...
This document is referenced by:
IAPMO LAPC - 2020 COUNTY OF LOS ANGELES PLUMBING CODE
Published by IAPMO on January 1, 2020
The provisions of this Code shall apply to the construction, alteration, moving, removal, repair and use of any plumbing or drainage work, and the qualification and registration of certain persons...
This document is referenced by:
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 is referenced by:
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...
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