MSS-SP-69-2003.pdf

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1、I ANSIIMSS SP-69-2003 Pipe Hangers and Supports - Selection and Application Standard Practice Developed and Approved by the Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. 127 Park Street, NE Vienna, Virginia 22180 Phone: (703) 281-6613 www.mss- Fax: (703) 281-6671 e-m

2、ail: ANSYMSS STANDARD PRACTICE SP-69 This MSS Standard Practice was developed under the consensus of the MSS Technical Committee 403 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,

3、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 user, and the general public. The existence of an MSS Standard Practice does not in itself preclude the manufacture, sale,

4、or use 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. U.S. customary units in this SP are the standard; the metric units are for reference only. Unless otherwise speci

5、fically 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. (See ANNEX A.) In this Standard Practice all notes, annexes, tables, and figures are construed to be essential to th

6、e 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. Non-toleranced dimensions in this Standar

7、d Practice are nominal, and, unless otherwise specified, shall be considered “for reference only”. Any part of this standard may be quoted. Credit lines should read “Extracted from ANSUMSS SP-69, 2003, with permission o f the publisher, the Manufacturers Standardization Society. ” Reproduction prohi

8、bited under copyright convention unless written permission is granted by the Manufacturers Standardization Society o f the Valve and Fittings Industry. Inc. Originally Approved by MSS July 1966 Approved as an American National Standard March 2004 Copyright O, 2004 by Manufacturers Standardization So

9、ciety of the Valve and Fittings Industry, Inc. Prinferl in 1 J.8.A. ANSYMSS STANDARD PRACTICE SP-69 FOREWORD This Standard Practice was developed by a cooperative effort of representatives of the pipe hanger manufacturers. It is based on the best practice current at this time and on the collective e

10、xperience of the industry. There are three companion standards-MSS SP-58 and MSS SP-89 relate to hanger materials, design, manufacture, fabrication and installation; MSS SP-127 relates to the design, selection, and application of bracing for piping systems subject to seismic - wind - dynamic loading

11、. In addition, the MSS Technical Committee 403 has developed guidelines for pipe supports contractual relationships and on hanger terminology as covered in MSS SP-77 and MSS SP-90 respectively. ii ANSYMSS STANDARD PRACTICE SP-69 TABLE OF CONTENTS SECTION PAGE 1 . 2 . 3 . 4 . 5 . 6 . 7 . 8 . 9 . 10 .

12、 11 . 12 . 13 . 14 . 15 . 16 . 17 . 18 . 19 . FOREWORD . ii SCOPE . 1 OBJECTIVE i CLASSIFICATION OF PIPING SYSTEMS . 1 GENERAL REQUIREMENTS 1 MATERIAL REQUIREMENTS 2 DIMENSIONAL REQUIREMENTS . 2 SELECTION OF HANGERS AND SUPPORTS FOR PIPE MOVEMENT 7 ATTACHMENTS MADE BY WELDING OR BOLTING . 7 HANGER A

13、ND SUPPORT SPACING . 9 PIPE ATTACHMENTS FOR INSULATED LINES . 10 MULTIPLE SUPPORTS 10 RISER SUPPORTS 11 ANCHORS, GUIDES AND RESTRAINTS 11 FIRE PROTECTION SY SEMS . 11 DUCTILE IRON PIPING 1 1 CAST IRON SOIL PIPING 11 GLASS PIPING 11 PLASTIC PIPING . 12 FIBERGLASS REINFORCED PIPE (FRP) 12 TABLE 1 . .

14、HANGER AND SUPPORT SELECTIONS . 3 2 . - SPRING SUPPORT SELECTION . 7 3 . -MAXIMUM HORIZONTAL PIPE HANGER AND SUPPORT SPACING 8 4.-RECOMMENDED MINIMUM ROD DIAMETER FOR SINGLE RIGIDROD HANGERS 9 5 . - TYPE 40 PROTECTION SHIELDS FOR INSULATED PIPE AND TUBING 10 FIGURE 1 .-TYPE CHART . 5 ANNEX A REFEREN

15、CED STANDARDS AND APPLICABLE DATES 13 iii ANSIMSS STANDARD PRACTICE SP-69 1. 2. 3. PIPE HANGERS AND SUPPORTS - SELECTION AND APPLICATION 1.1 This Standard Practice presents the recommended practice for the selection and application of pipe hangers and supports for all service temperatures. OBJECTIVE

16、 2.1 To serve as a pipe hanger and support specifica- tion for selection and application, by being referenced in whole or in part. 2.2 To serve as a guide to proven industry practice during engineering design and writing of job specifi- cations covering the hanging, supporting and con- trolling the

17、movement of piping systems. 2.3 To provide the erector with information on types of hanger and support components to be used for specific application and installations, where such information is not otherwise provided. 2.4 To serve as a companion document to MSS SP-58 which provides recommendations

18、for material, design and manufacture of standard types of pipe hanger components. 2.5 To serve as a companion document to MSS SP-89 which provides recommendations for fabrication and installation of pipe hangers and supports. 2.6 To serve as a companion document to MSS SP- 127 which provides recomme

19、ndations for the design, selection, and application of bracing for piping systems subject to seismic - wind - dynamic loading. CLASSIFICATION OF PIPING SYSTEMS For the purpose of pipe hanger and support selection, this Standard Practice establishes an identification of piping systems according to th

20、e operating (service) temperatures of the piping contents as follows: 3.1 Hot Systems A-I. 120“ F (49“ C) to 450“ F (232C) A-2. 451“ F (233“ C) to 750“ F (399“ C) A-3. Over 750“ F (399“ C 3.2 3.3 Ambient Systems B. 60F (16C) to 119F (48C) Cold Systems C-I. 33“ F (1“ C) to 59“ F (15“ C) C-2. -19“ F (

21、-28“ C) to 32“ F (0“ C) C-3. -39“ F (-39“ C) to -20“ F (-29“ C) C-4. -40“ F (-40“ C) and below (Cryogenic Range) 4. GENERAL REQUIREMENTS 4.1 Where applicable, selection and application of pipe hangers and supports may be r e q u i r e d to conform to Codes and Standards, such as: ASME B3 1 Codes for

22、 Pressure Piping ASME Boiler and Pressure Vessel Codes UL 203 Standard for Pipe Hanger Equipment Factory Mutual FM1951/1952/1953 Approval Standard for Pipe Hanger Components for Automatic Sprinkler Systems NFPA 13 National and Local Building Codes All other Applicable Codes for Fire Protection Servi

23、ce 4.2 The selection of pipe hangers and supports shall be based upon the overall design concept of the piping systems and any special requirements which may be called for in the specifications. The support- ing systems shall provide for, and control, the free or intended movement of the piping incl

24、uding its move- ment in relation to that of connected equipment. 4.3 A careful study shall be made of the piping lay- out in relation to the surrounding structure and adja- cent piping and equipment before selecting the type of support to be used at each hanger point. 4.4 Hangers, supports, anchors

25、and restraints shall be selected to withstand all static and specified dynamic conditions of loading to which the piping and associated equipment may be subjected. 1 ANSUMSS STANDARD PRACTICE SP-69 4.5 When pipe hanger load and movement calcula- tions are required by the design specification, the fo

26、llowing must be considered: a) Deadweight loads b) Hydrostatic loads c) Thermal loads d) Loading due to expansion joint reaction forces 4.6 When occasional pipe hanger load calculations are required, they must be clearly defined in the design specification. Types of occasional loads are: a) Safety v

27、alve thrust loads b) Seismic loads c) Wind, snow or ice loads d) Turbine trip-out loads e) Water hammer loads 4.7 Allowable stress levels listed in MSS SP-58 shall be used in the design of hanger assemblies with the following exceptions: a) The load capacities for threaded hanger rods shall conform

28、to Table 3 and Table A3 of MSS SP-58. b) A 20% increase in allowable stress may be permitted for short time overloading conditions during operation. c) For steels of known physical properties, an increase to 80% of minimum yield strength, at room temperature, during hydrostatic testing, is permissib

29、le. For steels of unknown physical pro- perties, an increase to 80% of yield strength is permissible, as established by tensile testing a sample of material in accordance with ASTM A 370. The stress so established shall not exceed 19,000 psi (I 3 1 MPa). d) Loading combination considerations and all

30、ow- able stress levels to be applied shall be established by the Piping Design Engineer. 4.8 Hanger and support components shall be selected from Table 1 within the system classification. 4.9 Where additional structural framing members are required, they shall be designed for the specific loads they

31、 are to support in accordance with the AISC Manual of Steel Construction - Allowable Stress Design, 9* Edition. No increase in allowable stress is permitted for hydrostatic test periods. 4.10 Hangers for the suspension of size 212 and larger pipe and tubing shall be capable of vertical hanger compon

32、ent adjustment under load. 4.11 Building structure shall be adequate for sup- porting pipe hanger loads as generated in 4.5 and 4.6, including hydrostatic test loads. In general, the Civil Design Engineer has this responsibility. 4.12 Installed hangers or hanger Components shall be used only for the

33、ir purpose. They shall not be used for rigging and erection purposes. 4.13 Pipes shall not be suspended directly from each other unless formal calculations are performed and accepted by the responsible Piping Design Engineer. If no calculations have been made, the individual hanger for each horizont

34、al pipe in a vertical bank shall have the load transmitted directly to the rods, not the pipe above. Care shall be taken to size the rod appropriately for the total load at the support point. MATERLAL REQUIREMENTS 5.1 The materials of all pipe hanging and support- ing elements shall be in accordance

35、 with MSS SP-58. 5.2 The material in contact with the pipe shall be compatible with the piping material so that neither shall have a deteriorating action on the other. 5.3 Materials subject to corrosion or electrolysis shall be protected as specified by the engineering design and such protection sha

36、ll be applied in accord- ance with the requirements of MSS SP-58. DIMENSIONAL REQUIREMENTS 6.1 Hangers and supports shall be sized to fit the outside diameter of pipe, tubing, or, if specified, the outside diameter of insulation. Manufacturers catalog hangers provide a nominal clearance over standar

37、d molerance piping and tubing. Consideration for fit should be given by the user for large diameter and/or out of tolerance piping and tubing. 6.2 with Section 4 of MSS SP-89. Dimensional tolerances shall be in accordance 2 ANSI/MSS STANDARD PRACTICE SP-69 STEEL PROTECTION SADDLES 15) I BARE I 24,26

38、 I 6.11,12 I I,5,7,9,lO 3.4 I 41.43 I 44,45.46 I NOTE3 WIENT B 60 (16) to I19 (48) COVERED 24,26 NONE I. 5.7.9. IO 3,4 41,43 44.45.46 59 NOTESlBr6 WI 39 OR 40 Wl39 OR 40 Wl39 OR 40 WI 39 OR 40 BARE 24.26 6,11,12 1,5,7,9.10 3,4 41.43 44,45,46 59 BARE 1 NONE I NONE I 1,5,7,9,10 I 3,4 I 41,43 I 44,45,4

39、6 I NOTE3 3 2 % I COLD c-l 33 (1) COVERED 26 NONE 1,s. 7.9, 10 3.4 41.43 44,4s, 46 59 NOTE I Wl 40 Wl 40 W I 40 WI 40 WI 40 WI 40 NOTE4 NOTE4 i 1 COW C-2 -19 (-28) COVERED NONE NONE 1,5,7,9,10 NONE 41.43 44,45,46 NOTES 3 LIILE88EIwuT TVPE-17 u FIGURE 1 - Type Chart 5 ANSMSS STANDARD PRACTICE SP-69 Q

40、 W B -PIPEROU TYPE-41 FIGURE 1 - Type Chart 6 ANSUMSS STANDARD PRACTICE SP-69 MAX 114 INCH (6 rnm) (25 mm) MAXlINCH 7, SELECTION OF HANGERS AND SUPPORTS FOR PIPE MOVEMENT 25% 48.51SS 48,49,51SS,53SS 52ss 6% 5ISS 5is.53s 52s 25% 51s 51s,53s 52s 6% 54.55 54.55.56 54,55 7.1 The selection of hangers and

41、 supports shall be made to provide the piping system with the degree of control that its operating characteristics require. 7.2 Where negligible movement of pipe occurs at hanger locations, and no harmfbl loading on connect- ing equipment, piping, or structure would result, rod hangers may be used f

42、or suspended lines. For piping supported from below, bases, brackets or structural cross members may be used. MAX. 3 INCH (76 rnm) OVER 3 INCH (76 mm) 7.3 Sfgniflccrnt Horizont01 Movement 7.3.1 Where there is significant horizontal movement at a suspended type hanger location, hanger components shal

43、l be selected to allow for swing. If horizontal pipe movement results in a vertical angle of the hanger rod greater than 4 degrees, common practice is to either offset the pipe attachment or structural attachment by the amount of anticipated rod swing or provide a traveling device for horizontal mov

44、ement. In special cases, vertical angles greater than 4 degrees may be used provided the resulting horizontal force and vertical deflection are considered in the piping and support design. 25% 51LS 51LS. 53LS 52LS 6% 54.55 54.55.56 54.55 25% 54.55 54,55,56 54.55 6% 54.55 54.55.56 54.55 TABLE 2 - Spr

45、ing Support Selection I I I I I NOTE (i) VARIABLE SPRING HANGERS VARABlLlY FACTOR = pio0 Travd in, (mm X .%in$ MIN OF ONE (i) HANGER PER PIPE SECTION CLOSE TO THE JOINT BEHIND THE BELL AND AT CHANGE OF DIRECTION AND BRANCH CONNECTIONS. FOR PIPE SIZES SM (6) INCHES (150 mm) AND UNDER, INSTALLED ON AS

46、ME 831 PROJECTS, THAT ARE SUBJECTED TO LOADMGS OTHER THAN WEIGHT OF PIPE AND CONTENTS, THE SPAN SHOULD BE LIMITED TO THE MAXIMUM SPACING FOR WATER SERVICE STEEL PIPE. z * o FOLLOW REQUIREMENTS OF THE NATIONAL FIRE PROTECTION ASSOCJA- TION. SEE SECTION 14. 8 ANSUMSS STANDARD PRACTICE SP-69 114 (6) 3/

47、8 (IO) i n (15) 3/4 (20) i (25) 1 i/4 (32) 1 IR (40) 2 (54) 2 if2 (65) 3 (80) 3 in (90) 4 (100) 5 (125) 6 (150) 8 (200) 10 (250) 12 (300) 14 (350) 16 ( 4 0 0 ) I8 (450) 20 (500) 24 (600) 30 (750) NOTE: 8.4 Recommended applied torque for set screws in c c l a m p s (Types i9 and 23) is listed below:

48、Inch (m) Inch Pound (Nm) Thread size Torque 3/8 M10 3/8 M10 3/8 Mi0 3/8 M10 3/8 Mi0 3/8 Mi0 38 M10 318 MIO 3/8 M10 318 M10 3/8 MIO 3/8 MIO 3/8 Mi0 318 Mi0 3/8 Ml0 1/2 MI2 in M12 IL? M12 l n M12 in Mi2 1/2 Mi2 5/8 M16 l n Mi2 5/8 MI6 IL? MI2 3/4 M20 5/8 M16 3/4 M20 3/4 M20 7/8 M20 3/4 M20 7/8 M20 3/4

49、 M20 1 M24 I M24 1 M24 I 114 M30 11/4 M30 i 1/4 h 3 0 1 I4 6.4 3/8 9.6 1/2 12.7 518 15.8 314 19.0 718 22.2 40 4.5 60 6.8 125 14.1 250 28.2 400 45.2 665 75.1 Note: Caution should be taken not to overtighten the set screw. 9. HANGER AND SUPPORT SPACING 9.1 The recommended maximum spacing of hangers and supports shall be as shown in Table 3. 9.2 Spacings less than shown in Table 3 may be required to conform with building structure loading limitations and standard product load ratings. 9.3 Recommended minimum rod diameters for rigid rod hangers are listed in