MSS SP-113-2017 Connecting Joints between Tapping Machines and Tapping Valves.pdf

1、MSS SP-113-2017 Connecting Joints between Tapping Machines and Tapping Valves 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 Fax: (703) 281-6671 E-mai

2、l: standardsmsshq.org www.msshq.org MSS STANDARD PRACTICE SP-113i This MSS Standard Practice was developed under the consensus of the MSS Technical Committee 112 and the MSS Coordinating Committee. The content of this Standard Practice is the resulting efforts of competent and experienced volunteers

3、 to provide an effective, clear, and non-exclusive standard that will benefit the industry as a whole. This MSS Standard Practice describes minimal requirements and is intended as a basis for common practice by the manufacturer, the user, and the general public. The existence of an MSS Standard Prac

4、tice does not in itself preclude the manufacture, sale, or use of products not conforming to the Standard Practice. Mandatory conformance to this Standard Practice is established only by reference in other documents such as a code, specification, sales contract, or public law, as applicable. MSS has

5、 no power, nor does it undertake, to enforce or certify compliance with this document. Any certification or other statement of compliance with the requirements of this Standard Practice shall not be attributable to MSS and is solely the responsibility of the certifier or maker of the statement. “Unl

6、ess indicated otherwise within this MSS Standard Practice, other standards documents referenced to herein are identified by the date of issue that was applicable to this Standard Practice at the date of approval of this MSS Standard Practice (see Annex A). This Standard Practice shall remain silent

7、on the validity of those other standards of prior or subsequent dates of issue even though applicable provisions may not have changed.” 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 therewit

8、h. MSS shall not be held responsible for identifying any patent rights. Users are expressly advised that determination of patent rights and the risk of infringement of such rights are entirely their responsibility. In this Standard Practice, all text, notes, annexes, tables, figures, and references

9、are construed to be essential to the understanding of the message of the standard, and are considered normative unless indicated as “supplemental”. All appendices, if included, that appear in this document are construed as “supplemental”. Note that supplemental information does not include mandatory

10、 requirements. The U.S. customary units and SI (metric) units in this Standard Practice are regarded separately as the standard; each should be used independently of the other. Combining or converting values between the two systems may result in non-conformance with this Standard Practice. U.S. cust

11、omary units in this Standard Practice are the default standard, in cases of conflict or incongruity. Substantive changes in this 2017 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 flagge

12、d with that in the previous edition. Non-toleranced dimensions in the Standard Practice are nominal unless otherwise specified. Excerpts of this Standard Practice may be quoted with permission. Credit lines should read Extracted from MSS SP-113-2017 with permission of the publisher, Manufacturers St

13、andardization Society of the Valve and Fittings Industry. Reproduction and/or electronic transmission or dissemination is prohibited under copyright convention unless written permission is granted by the Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. All rights reserv

14、ed. Originally Published: March 1994 Current Edition Approved: June 2016 / February 2017 Current Edition Published: May 2017 MSS is a registered trademark of the Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. Copyright , 2017 by Manufacturers Standardization Society o

15、f the Valve and Fittings Industry, Inc. Printed in U.S.A. MSS STANDARD PRACTICE SP-113ii TABLE OF CONTENTS SECTION PAGE PURPOSE 1 1 SCOPE . 1 2 DEFINITIONS . 1 3 MAXIMUM CUTTER DIAMETERS . 2 4 PILOT DRILL AND CUTTER CLEARANCES 2 5 END CONNECTION REQUIREMENTS . 3 TABLE 1 Full-Size and Undersize Cutte

16、r Diameters for Use with Tapping Valves 5 2 Pilot Drill and Cutter Clearance . 6 3 Flanged Joint End . 7 4 Push-On Joint End 8 5 A-C (Asbestos-Cement) Joint End . 9 6 Radial Compression Joint End . 10 7 Mechanical Joint End . 11 FIGURE 1 Tapping Components 4 2 Pilot Drill and Cutter Clearance . 4 AN

17、NEX A Referenced Standards and Applicable Dates 12 MSS STANDARD PRACTICE SP-1131 CONNECTING JOINTS BETWEEN TAPPING MACHINES AND TAPPING VALVES PURPOSE The purpose to be achieved by this Standard Practice is to prevent interfacing and interference problems between a tapping machine and a tapping valv

18、e. 1. SCOPE 1.1 This Standard Practice covers the dimensions which define the interface between drilling/tapping machine adapters and tapping valves (known as a “joint”); including clearances for the pilot drill and cutter. The positioning recess and mating raised face of the connecting flanges or e

19、nd connections, between machine adapters and tapping valves, serve to ensure proper alignment of the machine adapter onto the tapping valve, without affecting the strength of the joint. Only flanged, mechanical joint, push-on, asbestos-cement, and radial compression connections are included within t

20、his Standard Practice. 1.2 This Standard Practice covers dimensions for the special connecting flanges indicated in Section 1.1, of nominal sizes from NPS 2 through NPS 60 (DN 50 through DN 1500), for water and sewerage systems. 1.3 Pressure and pressure-temperature ratings are beyond the scope of t

21、his Standard Practice. 2. DEFINITIONS (Reference Figure 1 and Figure 2) 2.1 Cutter A circular cutting tool that attaches to a tapping machine to cut a circular hole in the side of a main. 2.2 Drilling Machine See “Tapping Machine.” 2.3 Full-Size Cutter A cutter that cuts a hole to a specified NPS (D

22、N) diameter. 2.4 Joint The “interface” or connecting joint between sleeves and tapping valves will be abbreviated as “joint” in this Standard Practice. 2.5 Main A pipe used in a water or sewerage system for distribution of water or collection of sewage. 2.6 Manufacturer The party producing products

23、in accordance with this Standard Practice. 2.7 NPS (DN) The acronym NPS indicates “Nominal Pipe Size” (U.S. customary). A standard size identification number, not necessarily an actual dimension. The European or International designation equivalent to NPS is called DN (diametre nominal/nominal diame

24、ter) in which size identification number is based on SI (metric) units, not necessarily an actual dimension. Guidelines for SI (metric) conversions may be found in MSS SP-86. 2.8 Pilot Drill The special drill bit that mounts at the center of a cutter and precedes the cutter into the pipe to guide an

25、d stabilize the cutter while cutting. Also, pilot drills often include a means of retaining the cut “coupon” within the cutter. MSS STANDARD PRACTICE SP-1132 2.9 Purchaser The party entering into a contract or agreement to purchase product or work to be performed, in accordance with this Standard Pr

26、actice. 2.10 Tapping Machine (also known as a drilling machine) A machine used to cut a hole into an existing pressurized or non-pressurized main through the use of a tapping sleeve (see Section 2.11) and a tapping valve (see Section 2.12). The tapping machine is equipped with a cutter, that extends

27、 through the waterway of the tapping valve and sleeve branch to cut the hole into the main and remove the cut-out piece (coupon) upon retraction of the cutter. The tapping valve can then be closed to seal the branch connection while the tapping machine is removed from the valve and the branch pipeli

28、ne is connected to the tapping valve. 2.11 Tapping Sleeve A fitting that can be assembled onto an existing main to make a branch or “tee” connection to the main with a tapping valve and tapping machine, without interruption of service. NOTE: Tapping sleeves conform to MSS SP-111 (Gray and Ductile Ir

29、on) and MSS SP-124 (Fabricated). 2.12 Tapping Valve A gate valve with special end connections that are designed to provide proper alignment of a tapping sleeve, the tapping valve, and tapping machine, so that the tapping machine cutter will pass through the tapping valve and tapping sleeve branch wi

30、th clearance during the tapping operation. A tapping valve is also specially designed so that its gate opens sufficiently to provide clearance for the tapping cutter to pass through the open valve during the tapping operation, and so that there is sufficient distance between the gate and the valves

31、connection with the tapping machine to provide clearance between the gate and the pilot drill and cutter at the conclusion of the tapping operation, when the cutter is withdrawn and the tapping valve is closed. 2.13 Undersize Cutter A cutter that cuts a hole to a diameter which is smaller than a spe

32、cified NPS (DN) diameter by approximately 1/2 inch (13 mm) or more. 2.14 Other Definitions Other definitions may be found in MSS SP-96. 3. MAXIMUM CUTTER DIAMETERS 3.1 Each size joint and corresponding tapping valve shall provide clearance to accommodate the maximum cutter diameter listed in Table 1

33、, for full-size and undersize cutter dimensions. 4. PILOT DRILL AND CUTTER CLEARANCES 4.1 To provide clearance for the pilot drill, which is located on the centerline of the waterway, and the cutter, the minimum dimensions listed in Table 2 must be provided from the face of the valve flange to any m

34、oving part of the valve disc (Reference Figure 2). Dimensions are provided for the two types of tapping machines, type “M” and “U”. 4.2 For tapping valves, the size of the waterway shall include appropriate clearance for the diameter of tapping machine cutter to be used. MSS STANDARD PRACTICE SP-113

35、3 5. END CONNECTION REQUIREMENTS 5.1 Tapping Valve Flanges 5.1.1 MSS SP-60 covers the connecting flange joints between tapping sleeves and tapping valves. The end flange of a tapping valve which forms a joint with the tapping sleeve shall conform to the dimensions of MSS SP-60 in sizes NPS 2 through

36、 NPS 60 (DN 50 through DN 1500). 5.1.2 The end flange of the tapping valve which forms a joint with the tapping machine must be parallel to and concentric with the opposite flange and concentric with the waterway to provide proper alignment for the tapping operation. A sealing surface shall be provi

37、ded on the flange face. This flange shall comply with the dimensions in one of the Tables 3 through 7, which corresponds to the appropriate type of flange. In addition, the flange may be slotted to provide bolt access at bolt locations. 5.2 Tapping Machine Adapter Flanges 5.2.1 The flange of a machi

38、ne adapter which forms a joint with the tapping valve shall be compatible with the tapping valve dimensions in one or more of the Tables 3 through 7, which corresponds to the appropriate type of flange(s). MSS STANDARD PRACTICE SP-1134 FIGURE 1 Tapping Components FIGURE 2 Pilot Drill and Cutter Clea

39、rance MSS STANDARD PRACTICE SP-1135 NOTE: The dimensional data in Tables 1 through 7 are in inch units only. The addition of millimeter units is being considered for next edition. TABLE 1 Full-Size and Undersize Cutter Diameters for Use with Tapping Valves Dimensions are in inches Size NPS (DN) Full

40、-Size Cutters (Max. Cutter Diameter) Undersize Cutters (Max. Cutter Diameter) 2 (50) 2 112 3 (80) 3 212 4 (100) 4 312 6 (150) 6 512 8 (200) 8 712 10 (250) 10 912 12 (300) 12 1112 14 (350) 14 1312 16 (400) 16 1512 18 (450) 18 1712 20 (500) 20 1912 24 (600) 24 2312 30 (750) 30(a)2912 36 (900) N/A 3512

41、 42 (1050) N/A 4112 48 (1200) N/A 47 54 (1400) N/A 53 60 (1500) N/A 58(b)NOTES: (a) 30 inches was the largest full-size cutter known to be available at the time this Standard Practice was developed. (b) 58 inches was the largest undersize cutter known to be available at the time this Standard Practi

42、ce was developed. MSS STANDARD PRACTICE SP-1136 TABLE 2 Pilot Drill and Cutter Clearance (Reference Figure 2) Dimensions are in inches Size NPS (DN) Tapping Machine Type Pilot Drill Clearance: Valve Disc-to-Flange (Min.) (at Centerline of Water Way)Cutter Clearance: Valve Disc-to-Flange 2 (50) “M” 2

43、12 1316 “U” N/A N/A 3 (80) “M” 278916 “U” 1916 1916 4 (100) “M” 214 15/16 “U” 35161316 6 (150) “M” 3116 1716 “U” 311161316 8 (200) “M” 314716 “U” 41316 3716 10 (250) “M” 3338 1716 “U” 514516 12 (300) “M” 334 2 “U” 5116 31516 14 (350) “M” 378 218 “U” 5 0 16 (400) “M” 534 4 “U” 5 1316 18 (450) “M” 678

44、 538 “U” 518 0 20 (500) “M” 6516 41116 “U” 518 1516 24 (600) “M” 7 538 “U” 658 2 30 (750) “M” 712 578 “U” 712 0 36 (900) “M” 18 N/A “U” 0 0 42 (1050) “M” 18 N/A “U” 0 0 48 (1200) “M” 18 N/A “U” 0 0 54 (1400) “M” 18 N/A “U” 0 0 60 (1500) “M” 18 N/A “U” 0 0 GENERAL NOTES: (1) All dimensions include 1/

45、8-inch clearance. (2) The zero value for the “U” type tapping machines indicate the pilot drill and/or the cutter are totally within the Machine Adapter (see Figure 2). (3) See Table 1, Notes (a) and (b) for additional information regarding Table 2 dimensions; especially involving NPS 36 to NPS 60 (

46、DN 900 to 1500). MSS STANDARD PRACTICE SP-1137 TABLE 3 Flanged Joint End REQUIRED TAPPING VALVE FLANGE Dimensions are in inches Size NPS (DN) Bolt Circle Diameter A(a)+116-0 Number Sizeof Holes/Slots B(a)Diameter E +0.03 -0.00 Depth F +132-0 3 (80) 6 4 343.72 13644 (100) 712 8 344.72 13646 (150) 912

47、 8 786.72 13648 (200) 1134 8 788.72 136410 (250) 1414 12 1 10.78 136412 (300) 17 12 1 12.78 136414 (350) 1834 12 118 14.78 51616 (400) 2114 16 118 16.78 3818 (450) 2234 16 114 16.78 3820 (500) 25 20 114 20.78 3824 (600) 2912 20 138 24.91 3830 (750) 36 28 138 30.84 3836 (900) 4234 32 158 36.78 3842 (

48、1050) 4912 36 158 44.09 1248 (1200) 56 44 158 50.06(a)1254 (1400) 6234 44 2 56.00(a)1260 (1500) 6914 52 2 62.00(a)12GENERAL NOTE: This table applies to both “M” ANSI/ASME B16.1-2015 Gray Iron Pipe Flanges and Flanged Fittings: Class 25, 125, and 250 AWWA; ANSI/AWWA C110/A21.10-12 Ductile-Iron and Gr

49、ay-Iron Fittings C111/A21.11-12 Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings MSS; ANSI/MSS SP-60-2017 Connecting Flange Joints between Tapping Sleeves and Tapping Valves SP-86-2014 Guidelines for Metric Data in Standards for Valves, Flanges, Fittings, and Actuators SP-96-2017 Terminology for Valves, Fittings, and Their Related Components SP-111-2015 Gray-Iron and Ductile-Iron Tapping Sleeves; including Amendment (2017) SP-