1、 MSS SP-113-2012 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-ma
2、il: standardsmss-hq.org MSS www.mss-hq.org MSS STANDARD PRACTICE SP-113 i 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 vo
3、lunteers 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 Stand
4、ard Practice 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.
5、 MSS has 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 stateme
6、nt. “Unless 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
7、 silent 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
8、therewith. 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 ref
9、erences 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 m
10、andatory requirements. This Standard Practice has been substantially revised from the previous 2001 (R 2007) edition. It is suggested that if the user is interested in knowing what changes have been made, that direct page by page comparison should be made of this document and that of the previous ed
11、ition. Non-toleranced dimensions in this Standard Practice are nominal, and, unless otherwise specified, shall be considered “for reference only”. Excerpts of this Standard Practice may be quoted with permission. Credit lines should read Extracted from MSS SP-113-2012 with permission of the publishe
12、r, Manufacturers Standardization 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.
13、 All rights reserved. Originally Published: March 1994 Current Edition Approved: March 2012 Current Edition Published: May 2012 MSS is a registered trademark of the Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. Copyright , 2012 by Manufacturers Standardization Societ
14、y of the Valve and Fittings Industry, Inc. Printed in U.S.A. MSS STANDARD PRACTICE SP-113 ii 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 2 TABLE 1 Full-Size and Undersize Cutter
15、Diameters for Use with Tapping Valves . 4 2 Pilot Drill and Cutter Clearance 5 3 Flanged Joint End 6 4 Push-On Joint End . 7 5 A-C (Asbestos-Cement) Joint End 8 6 Radial Compression . 9 7 Mechanical Joint End 10 FIGURE 1 Tapping Components . 3 2 Pilot Drill and Cutter Clearance 3 ANNEX A Referenced
16、Standards and Applicable Dates . 11 MSS STANDARD PRACTICE SP-113 1 PURPOSE The purpose to be achieved by this Standard Practice is to prevent interfacing and interference problems between a tapping machine and tapping valve. 1. SCOPE 1.1 This Standard Practice covers the dimensions which define the
17、interface between drilling/tapping machine adapters and tapping valves; including clearances for the pilot drill and cutter. This “interface” or “connecting joint between tapping machines and tapping valves” will be abbreviated as “joint” in this Standard Practice. The positioning recess and mating
18、raised face of the connecting flanges or end 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 com
19、pression connections are included within this 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 60, for water and sewerage systems. 1.3 Pressure and pressure-temperature ratings are beyond
20、the scope of this Standard Practice. 2. DEFINITIONS (Reference Figure 1) 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
21、iameter. 2.4 Main A pipe used in a water or sewerage system for distribution of water or collection of sewage. 2.5 Manufacturer The party producing products in accordance with this Standard Practice. 2.6 NPS Indicates “Nominal Pipe Size” (U.S. customary). A standard size identification number, not n
22、ecessarily an actual dimension. The European or International designation equivalent to NPS is called DN (diametre nominal/nominal diameter) in which sizes are based on (SI) metric units. Guidelines for (SI) metric conversions may be found in MSS SP-86. 2.7 Pilot Drill The special drill bit that mou
23、nts at the center of a cutter and precedes the cutter into the pipe to guide and stabilize the cutter while cutting. Also, pilot drills often include a means of retaining the cut “coupon” within the cutter. 2.8 Purchaser The party entering into a contract or agreement to purchase product or work to
24、be performed, in accordance with this Standard Practice. 2.9 Tapping Machine A machine (also known as a drilling machine) used to cut a hole into an existing pressurized or non-pressurized main through the use of a tapping sleeve and tapping valve. The tapping machine is equipped with a cutter, that
25、 extends 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 branc
26、h pipeline is connected to the tapping valve. CONNECTING JOINTS BETWEEN TAPPING MACHINES AND TAPPING VALVES MSS STANDARD PRACTICE SP-113 2 2.10 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 machi
27、ne, without interruption of service. 2.11 Tapping Valve A special gate valve designed with end connections to provide a waterway opening clearance for tapping operations, as well as, proper alignment and positioning of a tapping sleeve, valve, and tapping machine. 2.12 Undersize Cutter A cutter that
28、 cuts a hole to a diameter which is smaller than a specified NPS diameter by approximately one-half (1/2) inch or more. 2.13 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 accom
29、modate the maximum cutter diameter listed in Table 1, 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
30、 provided from the face of the valve flange to any moving 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 mac
31、hine cutter to be used. 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 SP-60 in s
32、izes NPS 2 through 60. 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 provided on the
33、 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 machine adapter
34、 which forms a joint with the tapping valve shall be compatible with the taping 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-113 3 FIGURE 1 Tapping Components FIGURE 2 Pilot Drill and Cutter Clearance MSS
35、STANDARD PRACTICE SP-113 4 TABLE 1 Full-Size and Undersize Cutter Diameters for Use with Tapping Valves NPS Full-Size Cutters (Max. Cutter Diameter) Undersize Cutters (Max. Cutter Diameter) 2 2 1123 3 2124 4 3126 6 5128 8 71210 10 91212 12 111214 14 131216 16 151218 18 171220 20 191224 24 231230 30(
36、a)291236 N/A 351242 N/A 411248 N/A 47 54 N/A 53 60 N/A 58(b)Dimensions are in inches. NOTES: (a) 30” was the largest full-size cutter known to be available at the time this Standard Practice was developed. (b) 58” was the largest undersize cutter known to be available at the time this Standard Pract
37、ice was developed. MSS STANDARD PRACTICE SP-113 5 TABLE 2 Pilot Drill and Cutter Clearance (Reference Figure 2) NPS Tapping Machine Type Pilot Drill Clearance: Valve Disc to Flange (Min.) (at Centerline of Water Way) Cutter Clearance: Valve Disc to Flange 2 “M” 2121316“U” N/A N/A 3 “M” 2781916“U” 19
38、1619164 “M” 21415/16 “U” 3516113166 “M” 31161716“U” 31116113168 “M” 3141716“U” 41316371610 “M” 33381716“U” 514351612 “M” 3342 “U” 51163151614 “M” 378218“U” 5 0 16 “M” 5344 “U” 5 131618 “M” 678538“U” 5180 20 “M” 651641116“U” 518151624 “M” 7 538“U” 6582 30 “M” 712578“U” 7120 36 “M” 18N/A “U” 0 0 42 “M
39、” 18N/A “U” 0 0 48 “M” 18N/A “U” 0 0 54 “M” 18N/A “U” 0 0 60 “M” 18N/A “U” 0 0 Dimensions are in inches. GENERAL NOTES: (1) All dimensions include 18” 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 (se
40、e Figure 2). MSS STANDARD PRACTICE SP-113 6 TABLE 3 Flanged Joint End REQUIRED TAPPING VALVE FLANGE NPS A(b)B(b)(Number Size of Holes/Slots) E +.03 -.00 F +132-.00 3 6 4 343.72 13644 7128 344.72 13646 9128 786.72 13648 11348 788.72 136410 141412 1 10.78 136412 17 12 1 12.78 136414 183412 11814.78 51
41、616 211416 11816.78 3818 223416 11416.78 3820 25 20 11420.78 3824 291220 13824.91 3830 36 28 13830.84 3836 423432 15836.78 3842 491236 15844.09 1248 56 44 15850.06(a)1254 623444 2 56.00(a)1260 691452 2 62.00(a)12Dimensions are in inches. This table applies to both “M” ANSI/ASME B16.1-2010 Gray Iron
42、Pipe Flanges and Flanged Fittings: Class 25, 125, and 250 AWWA; ANSI/AWWA C110/A21.10-08 Ductile-Iron and Gray-Iron Fittings C111/A21.11-07 Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings MSS SP-60-2012 Connecting Flange Joints between Tapping Sleeves and Tapping Valves SP-86-2009 G
43、uidelines for Metric Data in Standards for Valves, Flanges, Fittings, and Actuators; including 2011 Errata Sheet SP-96-2011 Guidelines on Terminology for Valves and Fittings SP-111-2012 Gray-Iron and Ductile-Iron Tapping Sleeves The following organizations appear in the above list: ANSI American Nat
44、ional Standards Institute 25 West 43rd Street, Fourth Floor New York NY, 10036-7406 ASME American Society of Mechanical Engineers (ASME International) Three Park Avenue New York, NY 10016-5990 AWWA American Water Works Association 6666 West Quincy Avenue Denver, CO 80235-3098 MSS Manufacturers Stand
45、ardization Society of the Valve and Fittings Industry, Inc. 127 Park Street, NE Vienna, VA 22180-4602 Listing of MSS Standard Practices (as of May, 2012) TITLE SP-6-2012 Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings SP-9-2008 Spot Facing for Br
46、onze, Iron and Steel Flanges SP-25-2008 Standard Marking System for Valves, Fittings, Flanges, and Unions SP-42-2009 Corrosion Resistant Gate, Globe, Angle and Check Valves with Flanged and Butt Weld Ends (Classes 150, 300 & 600) SP-43-2008 Wrought and Fabricated Butt-Welding Fittings for Low Pressu
47、re, Corrosion Resistant Applications (Incl. 2010 Errata Sheet) SP-44-2010 Steel Pipeline Flanges (incl. 2011 Errata Sheet) SP-45-2003 (R 2008) Bypass and Drain Connections SP-51-2012 Class 150LW Corrosion Resistant Flanges and Cast Flanged Fittings SP-53-1999 (R 2007) Quality Standard for Steel Cast
48、ings and Forgings for Valves, Flanges, and Fittings and Other Piping Components Magnetic Particle Examination Method SP-54-1999 (R 2007) Quality Standard for Steel Castings and Forgings for Valves, Flanges, and Fittings and Other Piping Components Radiographic Examination Method SP-55-2011 Quality S
49、tandard for Steel Castings for Valves, Flanges, Fittings, and Other Piping Components Visual Method for Evaluation of Surface Irregularities (ANSI-approved American National Standard) SP-58-2009 Pipe Hangers and Supports Materials, Design, Manufacture, Selection, Application, and Installation (incorporates content of SP-69, 77, 89, and 90) (ANSI-approved American National Standard) SP-60-2012 Connecting Flange Joints between Tapping
