ANSI MSS SP-114-2007 Corrosion Resistant Pipe Fittings Threaded and Socket Welding Class 150 and 1000《150级和1000级耐腐蚀管件螺纹和承插焊接》.pdf

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1、ANSI/MSS SP-114-2007 Corrosion Resistant Pipe Fittings Threaded and Socket Welding Class 150 and 1000 Standard Practice Developed and Approved by the Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. 127 Park Street, NE Vienna, Virginia 22180-4602 Phone: (703) 281-6613 F

2、ax: (703) 281-6671 E-mail: infomss-hq.org www.mss-hq.org ANSI/MSS STANDARD PRACTICE SP-114iThis MSS Standard Practice was developed under the consensus of the MSS Technical Committee 108 and the MSS Coordinating Committee. In addition, this Standard Practice was approved by an ANSI/MSS Consensus Com

3、mittee and ANSI as an American National Standard. 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

4、 as a basis for common practice by the manufacturer, the user, and the general public. The existence of an MSS Standard Practice does not in itself preclude the manufacture, sale, or use of products not conforming to the Standard Practice. Mandatory conformance is established only by reference in a

5、code, specification, sales contract, or public law, as applicable. “Unless otherwise specifically noted in this MSS Standard Practice, other standards documents referred to herein are identified by the date of issue that was applicable to this Standard Practice at the date of issue of this Standard

6、Practice. See Annex A. This Standard Practice shall remain silent on the applicability of those other standards of prior or subsequent dates of issue even though applicable provisions may not have changed. References contained herein which are bibliographic in nature are noted as supplemental in the

7、 text.” By publication of this Standard Practice, no position is taken with respect to the validity of any potential claim(s) or of any patent rights in connection therewith. MSS shall not be held responsible for identifying any patent rights. Users are expressly advised that determination of patent

8、 rights and the risk of infringement of such rights are entirely their responsibility. Non-toleranced dimensions in this Standard Practice are nominal, and, unless otherwise specified, shall be considered “for reference only”. In this Standard Practice all notes, annexes, tables, and figures are con

9、strued to be essential to the understanding of the message of the standard, and are considered part of the text unless noted as “supplemental“. All appendices appearing in this document are construed as “supplemental“. Supplemental“ information does not include mandatory requirements. Substantive ch

10、anges in this 2007 edition are “flagged” by parallel bars as shown on the margins of this paragraph. The specific detail of the change may be determined by comparing the material flagged with that in the previous edition. Any part of this Standard Practice may be quoted. Credit lines should read Ext

11、racted from ANSI/MSS SP-114-2007 with permission of the publisher, Manufacturers Standardization Society of the Valves and Fittings Industry, Inc. Reproduction is prohibited under copyright convention unless written permission is granted by Manufacturers Standardization Society of the Valve and Fitt

12、ings Industry Inc. Originally Approved: May 1995 Originally Published: July 1995 Current Edition Published by MSS: April 2007 Current Edition Approved by ANSI: February 2011 Current ANSI/MSS Edition Published: March 2011 Copyright , 1995 by Manufacturers Standardization Society of the Valve and Fitt

13、ings Industry, Inc. Printed in U.S.A. ANSI/MSS STANDARD PRACTICE SP-114iiFOREWORD This document established a standard for corrosion resistant pipe fittings, threaded and socket-welding. Class 150 and Class 1000, produced for a number of years by various manufacturers to somewhat different dimension

14、s although basically similar in principle. These fittings were originally developed for use in the paper, food, pharmaceutical, distillery, sanitary, chemical, petro-chemical, and other corrosive and high temperature industry environments. The original design of these fittings was based on the dimen

15、sions of ASME B16.3, Malleable Iron Threaded Fittings. This Standard Practice, originally approved May 1995, was revised in 2001 to include Class 150 and Class 1000 square head plugs, hex head plugs and bushings, locknuts, and threaded and socket-welding unions. This 2007 edition includes revisions

16、to Section 5 and Table 5. This 2007 American National Standard edition, ANSI-approved and published in 2011, is substantively consistent with the currently available 2007 MSS edition and will utilize this 2007 year in its nomenclature. Substantive revisions will be applied to the next version that i

17、nvolves an accelerated revision cycle timeline, with a goal of having one unified and consistent ANSI/MSS Standard Practice. ANSI/MSS STANDARD PRACTICE SP-114iiiTABLE OF CONTENTS SECTION PAGE 1 SCOPE . 1 2 PRESSURE-TEMPERATURE RATINGS . 1 3 SIZE . 1 4 MARKING . 2 5 MATERIAL . 2 6 DIMENSIONS AND TOLE

18、RANCES . 3 7 THREADING 3 8 SOCKET WELDING . 4 9 RIBS . 4 10 PLUGS, BUSHINGS, AND LOCKNUTS 4 11 FACE BEVEL 4 12 WELDING . 4 13 TESTING . 4 14 PIPE UNIONS . 4 TABLE 1 Pressure-Temperature Ratings . 1 2 Center-to-End Tolerances 3 3 Dimensions of Class 150 Cast Threaded 90 Elbows, Tees, Crosses, and 45

19、Elbows . 5 4 Dimensions of Class 150 Cast Threaded 90 Street Elbows 6 5 Dimensions of Class 150 Cast Threaded Couplings (Straight and Reducing Sizes) 7 6 Dimensions of Class 150 Cast Threaded Caps . 8 7 Dimensions of Class 150 Cast Socket Welding Fittings 9 8 Dimensions of Class 150 Cast Threaded Sq

20、uare Head Plugs 10 9 Dimensions of Class 150 Cast Threaded Hex Head Plugs . 11 10 Dimensions of Class 150 Cast Threaded Hex Head Bushings . 12 11 Dimensions of Threaded Locknuts 14 12 Dimensions of Class 150 Cast Threaded Unions . 15 13 Dimensions of Class 150 Cast Socket Welding Unions . 16 14 Dime

21、nsions of Class 1000 Wrought Threaded 90 Elbows, Tees, Crosses, and 45 Elbows 17 15 Dimensions of Class 1000 Wrought Threaded 90 Street Elbows . 18 16 Dimensions of Class 1000 Wrought Threaded Couplings (Straight and Reducing Sizes) and Caps . 19 17 Dimensions of Class 1000 Wrought Socket Welding Fi

22、ttings . 20 18 Dimensions of Class 1000 Wrought Threaded Square Head Plugs . 21 19 Dimensions of Class 1000 Wrought Threaded Hex Head Plugs 22 20 Dimensions of Class 1000 Wrought Threaded Hex Head Bushings 23 21 Dimensions of Class 1000 Wrought Threaded Unions 25 22 Dimensions of Class 1000 Wrought

23、Socket Welding Unions 26 FIGURE 1 Identification of Reducing Fittings 2 ANNEX A Referenced Standards and Applicable Dates 27 ANSI/MSS STANDARD PRACTICE SP-11411. SCOPE 1.1 This Standard Practice for corrosion resistant pipe fittings threaded and socket welding, Class 150 and 1000, establishes requir

24、ements for the following: a) Pressure-temperature ratings b) Size and method of designating openings of reducing fittings c) Marking d) Minimum requirements for materials e) Dimensions and tolerances f) Threading g) Tests 2. PRESSURE-TEMPERATURE RATINGS 2.1 Pressure-temperature ratings for these fit

25、tings are shown in Table 1. Ratings are independent of the contained fluid and are the maximum allowable working pressures at the tabulated temperatures. Intermediate ratings may be obtained by linear interpolation between the temperatures shown. 2.2 The temperatures shown for the corresponding pres

26、sure rating shall be the material temperature of the pressure retaining structure. It is implied that the material temperature is the same as the fluid temperature. Use of a pressure rating at a material temperature other than that of the contained fluid is the responsibility of the user and subject

27、 to the requirements of any applicable code. 2.3 For purposes of this Standard Practice, castings are included for Class 150 fittings only. 2.4 The wall thickness of the fittings covered by this Standard Practice corresponds to Schedule 40 pipe. When thinner pipe of equivalent material is used, its

28、strength may govern the rating. When Schedule 40 pipe of equivalent material is used, the strength of the fitting governs the rating. TABLE 1 Pressure-Temperature Ratings Temperature (F) Class 150 (castings) PSIG Class 1000 (Wrought) PSIG -20 to 150 300 1000 200 265 910250 225 825 300 185 735350 150

29、(a)650 400 560 450 475500 385 550 300NOTE: (a) Permissible for service temperature up to 366 degrees Fahrenheit, reflecting the temperature of saturated steam at 150 psig. 3. SIZE 3.1 The size of the fittings listed in the following Tables is identified by the corresponding nominal (b)pipe size (NPS

30、). NOTE: (b) The use of the word “nominal” as a modifier of a dimension or size is intended to indicate that the stated dimension or size is used for purposes of designation. CORROSION RESISTANT PIPE FITTINGS THREADED AND SOCKET WELDING CLASS 150 AND 1000 ANSI/MSS STANDARD PRACTICE SP-11423.2 For re

31、ducing tees, crosses, and Y-branches (laterals), the size of the largest run opening shall be given first, followed by the size of the opening at the opposite end of the run. Where the fitting is a tee or Y-branch (lateral), the size of the outlet is given last. The straight line sketches of Fig. 1

32、illustrate how the reducing fittings are read. FIGURE 1 Identification of Reducing Fittings 4. MARKING 4.1 Class 150 Fittings Each Class 150 fitting shall be marked for identification with: a) The manufacturers name or trademark b) Material identification c) The symbol “SP114” to denote compliance w

33、ith this Standard Practice d) Class 150 e) Size f) Other markings in accordance with MSS SP-25. Where size and shape of fittings do not permit all of the above markings, they may be omitted in the reverse order given. g) The marking of plugs, bushings, and locknuts is not required by this Standard P

34、ractice. 4.2 Class 1000 Fittings Each Class 1000 fitting shall be marked for identification with: a) The manufacturers name or trademark b) Material identification c) The symbol “SP114” to denote compliance with this Standard Practice d) Class 1000 or 1M e) Size f) Other markings in accordance with

35、MSS SP-25. Where size and shape of fittings do not permit all of the above markings, they may be omitted in the reverse order given. g) The marking of plugs, bushings, and locknuts is not required by this Standard Practice. 5. MATERIAL 5.1 Class 150 fittings shall be cast or may be wrought. Class 10

36、00 fittings shall be wrought only. 5.2 Castings The chemical and mechanical properties of the castings shall be at least equal to the grades contained in ASTM A 351. Castings shall be heat treated by the solution annealing method specified in ASTM A 351. The castings shall be capable of passing the

37、intergranular corrosion tests performed in accordance with practice B of ASTM A 262 with a corrosion rate established between the manufacturer and purchaser. Alternatively, the castings shall be capable of passing the intergranular tests performed in accordance with practice E, alternate method B, o

38、f ASTM A 262. The manufacturer shall be prepared to certify that the product has been so produced. 5.3 Wrought Fittings, couplings, and caps shall be made from wrought forgings, seamless tubing, or bar stock. The chemical and mechanical properties shall be as a minimum equal to the grades contained

39、in ASTM A 182, A 479 or A 511. Wrought material shall be heat treated by the solution method as specified in ASTM A 182, A 479, or A 511. The wrought material shall be capable of passing the intergranular corrosion tests performed in accordance with practice E of ASTM A 262. The manufacturer shall b

40、e prepared to certify that the product has been so produced. ANSI/MSS STANDARD PRACTICE SP-11436. DIMENSIONS AND TOLERANCES 6.1 General The dimensions and tolerances of cast and wrought fittings are given in Tables 2 through 22. 6.2 Reducing Fittings Reducing fittings shall have the same center-to-e

41、nd dimensions and band diameter as the straight-size fittings corresponding to the largest size opening in the reducing fittings. 6.3 Tolerances Unless otherwise noted, the dimensions in this Standard Practice are nominal and are subject to the designated manufacturing tolerances. The following tole

42、rances apply: a) Metal Thickness Metal thickness at no point shall be less than 90% of the value given in Tables 3 through 10 and 12 through 22. b) Center-to-End Permitted center-to-end tolerances of fittings are shown in Table 2. Tolerances for end-to-end dimensions, lengths of couplings, and reduc

43、ers shall be twice those given for center-to-end dimensions. The largest nominal pipe size in a reducing fitting governs the tolerance to be applied to all openings. TABLE 2 Center-to-End Tolerances NOMINAL PIPE SIZE PLUS OR MINUS, IN. 1/8, , 3/8 0.05 1/2, 0.06 1, l-1/4 0.07 l-1/2, 2 0.08 2-l/2, 3 0

44、.10 4 0.12 7. THREADING 7.1 Types of Threads All fittings, except locknuts, shall be threaded in accordance with ANSI/ASME B1.20.1, and shall have tapered threads. Locknut threads shall be NPSL straight pipe threads in accordance with ANSI/ASME B1.20.1. 7.2 Countersink or Chamfer Internal threads sh

45、all be countersunk or chamfered a distance of not less than one half the pitch of the thread at an angle of approximately 45 with the axis of the thread, and external threads shall be chamfered at an angle of 30 to 45 with the axis, both for the purpose of easier entrance in making a joint and for p

46、rotection of the thread. Countersinking and chamfering shall be concentric with the threads. 7.3 Thread Gaging 7.3.1 External Threads Variations in threading shall be limited to one turn large or one turn small from the gage face of the ring gage. The reference point for gaging shall be the end of t

47、he thread. 7.3.2 Internal Threads Variations in threading shall be limited to one turn large or one turn small from the gaging notch of the plug gage. The reference point for gaging is the last thread scratch on the chamfer cone. 7.4 Length The thread length specified in all Tables shall be measured

48、 to include the countersink or chamfer. 7.5 Alignment The maximum allowable variation in the alignment of threads of all openings of threaded fittings shall be 0.06 in./ft. ANSI/MSS STANDARD PRACTICE SP-11448. SOCKET-WELDING 8.1 Dimensions for socket-welding fittings shall conform to Tables 2, 7, 13

49、, 17, and 22 and the general values given in Tables 3, 5, 6, 14, and 16. 8.2 The ends of socket-welding fittings shall be flat and at right angles to the socket axis and shall provide a minimum of 75% of the socket wall thickness for the fillet welding surface. 8.3 The socket bore shall be of uniform depth and diameter and exhibit a good workmanship finish that is free of burrs. 9. RIBS 9.1 General The addition of ribs or lugs is permitted. Where ribs are used, it is recommended that their thickness should be the same as specified for the metal t

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