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MSS SP 79

Socket Welding Reducer Inserts

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Organization: MSS
Publication Date: 1 January 2009
Status: inactive
Page Count: 14
scope:

This document establishes a Standard Practice for Socket Welding Reducer Inserts produced for a number of years by various manufacturers to varying dimensions although basically similar in principle. Users should note reducers furnished from existing stocks may have slightly different dimensions than shown in Table 3.

To provide a Standard Practice establishing requirements for insert type fittings, which effectively, after welded installation, creates a socket welded reduced end fitting, such as Tee, 90 degree E11, Cross, 45 degree E11, Coupling, etc.

General - This Standard Practice covers ratings, dimensions, tolerances, finish, marking and material requirements for socket welding reducer inserts for use with ASME B16.11, Class 3000 and 6000 socket welding fittings. Dimensions for these reducer inserts are shown in Table 3.

Fitting Sizes/Pipe Correlation - Fittings covered by this Standard Practice are shown in Table 1, by class, size range and correlation to the schedule number or wall designation of pipe for calculation of ratings.

Partial Compliance Fittings - Fittings with special dimensions and fittings made from non-standard materials may be designed and manufactured by agreement between the manufacturer and the purchaser, provided they are marked in accordance with the requirements for partial compliance fittings of Section 5.1.1 (e).

Service Conditions - Criteria for selection of fitting type and materials suitable for particular fluid service are not within the scope of this Standard Practice.

Welding - Except for the CAUTIONARY NOTE (Section 12) and the GAP RECOMMENDATIONS (Figure 1 and Figure 2), installation welding requirements are not within the scope of this Standard Practice. Installation welding shall be done in accordance with the applicable piping system into which the fittings are to be installed.

INCLUDES 2010 ERRATA SHEET

Document History

January 1, 2018
Socket Welding Reducer Inserts
General This Standard Practice covers ratings, dimensions, tolerances, finish, marking and material requirements for socket-welding reducer inserts for use with ASME B16.11, Class 3000 and 6000...
August 7, 2012
Socket Welding Reducer Inserts
A description is not available for this item.
January 1, 2011
Socket Welding Reducer Inserts
This document establishes a Standard Practice for Socket Welding Reducer Inserts produced for a number of years by various manufacturers to varying dimensions although basically similar in principle....
January 1, 2009
Socket Welding Reducer Inserts
General This Standard Practice covers ratings, dimensions, tolerances, finish, marking and material requirements for socket welding reducer inserts for use with ASME B16.11, Class 3000 and 6000...
MSS SP 79
January 1, 2009
Socket Welding Reducer Inserts
This document establishes a Standard Practice for Socket Welding Reducer Inserts produced for a number of years by various manufacturers to varying dimensions although basically similar in principle....
January 1, 2004
Socket Welding Reducer Inserts
General This Standard Practice covers ratings, dimensions, tolerances, finish, marking and material requirements for socket welding reducer inserts for use with ASME B16.11, Class 3000 and 6000...
January 1, 1999
Socket Welding Reducer Inserts
A description is not available for this item.
January 1, 1992
Socket-Welding Reducer Inserts
A description is not available for this item.
January 1, 1980
SOCKET-WELDING REDUCER INSERTS
This Standard covers dimensions, finish, tolerances, marking, material for carbon steel and alloy steel Socket-Welding Reducer Inserts for use with Socket-Welding Fittings listed in ANSI B16.11....
January 1, 1974
SOCKET-WELDING REDUCER INSERTS
This Standard covers dimensions, finish, tolerances, marking, material for carbon steel and alloy steel Socket-Welding Reducer Inserts for use with Socket-Welding Fittings listed in ANSI B16.11...

References

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