This MSS Standard Practice was developed under the connsus of the MSS Technical Committee 105 and the MSS Coordinating Committee. The content of this Standard Practice is the result of the efforts of competent and concerned volunteers to provide an effective, clear, and non-exclusive specification that will benefit the industry as a whole. This MSS Standard Practice is intended as a basis for common practice by the manufacturer, the ur, and the general public. The existence of an MSS Standard Practice does not in itlf preclude the manufac- ture, sale, or u of products not conforming to the Standard Practice. Mandatory conformance is established only by reference in a code, specification, sales contract, or public law, as applicable.
Unless otherwi specifically noted in this MSS SP, any standard referred to herein is identified by the date of issue that was applicable to the referenced standard(s) at the date of issue of this MSS SP.
Any part of this Standard Practice may be quoted. Credit lines should read `extracted from MSS SP-79-2009 with permission of the publisher, the Manufacturers Standardization Society. ' Reproduction prohibited under copyright convention unless written permission is granted by the Manufacturers Standardization Society of the Valve and Fittings Industry Inc.
Originally Approved March, 1974
Copyright ©, 1999 by
Manufacturers Standardization Society
of the
Valve and Fittings Industry, Inc.
Printed in U.S.A.
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TABLE OF CONTENTS
SECTION PAGE (1)炒股流程
0 PURPOSE
(1)
1 SCOPE
2 REFERENCES
(1)
丁慧3 RATINGS (2)
(2)
4 SIZE
5 MARKING (2)
(3)
6 MATERIAL
7 DESIGN AND CAPABILITY (3)
8 DIMENSIONS AND TOLERANCES (3)
(3)
9 TESTING
(3)
10 FINISH
(3)
PROTECTION
11 CORROSION
12 CAUTIONARY NOTE REGARDING INSTALLATION OF SOCKET WELDED JOINTS (3)btoc
TABLE
1 Fitting Sizes/Pipe Correlation (4)
2 Nominal Wall Thickness of Schedule 160 Pipe, 1/4” & 3/8” (4)
3 Steel Socket Welding Reducer Inrt Dimensions and Tolerances .............................................. 5,6 FIGURE
(7)
Recommendations
公倍数是什么1 Gap
2 Welding Gap and Minimum Socket Wall Thickness (7)
ANNEX常州历史
and Applicable Dates (8)
Standards
A Referenced
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127 Park Street, NE • Vienna, VA 22180-4602 • 703-281-6613 • FAX 703-281-6671 • www.mss-hq • e-mail:info@mss-hq
EXECUTIVE DIRECTOR : Robert F. O’Neill
ERRATA SHEET FOR MSS SP-79-2009
Socket Welding Reducer Inrts
September 9, 2010
Note the following correction:
1. Page 5, Table 3, Steel Socket Welding Reducer Inrt Dimensions and
石英表和机械表的区别
Tolerances. Under Nominal Pipe Size (NPS) 1½ x 1, the “TYPE” “6M” value (third column from right) should read “1” instead of the existing “2”.
This Errata Sheet is included in the Standard Practice.
Future printing of the Standard Practice will include this revid data.
PRESIDENT: J.V. Ballun – Val-Matic Valve & Mfg. Corp.
VICE PRESIDENTS: T.J. Hannafin – KITZ Corp. of America M.A. Clark – NIBCO, Inc.
TREASURER: G.M. Johnson – United Valve Manufacturers Standardization Society of the Valve And Fittings Industry, Inc.
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FOREWORD
This document establishes a Standard Practice for Socket Welding Reducer Inrts produced for a number of years by various manufacturers to varying dimensions although basically similar in princip
le. Urs should note reducers furnished from existing stocks may have slightly different dimensions than shown in Table 3.
iv古书籍
