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1、MSS SP-I I 1-2001 Reaffirmed 2005 Gray-Iron and Ductile4 lapping Sleeves -on 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
2、e-mail: infoamss. Copyright MSS Provided by IHS under license with MSSLicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/06/2007 08:20:02 MSTNo reproduction or networking permitted without license from IHS -,-,- MSS STANDARD PRACTICE SP-111 This MSS Standard Practice was de
3、veloped under the consensus of the MSS Technical Committee 112 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 a
4、s 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, or use of products not conforming to the Standard Practice. Mandatory c
5、onformance is established only by reference in a code, specification, sales contract, or public law, as applicable. Unless otherwise 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
6、issue of this MSS SP. (See Annex A). Any part o f this standard may be quoted. Credit lines should read ExtractedJFom MSS SP-111, 2001, Reafimed 2005 with pemzission o f the publisheq the Manufacturers Standardization SocieQ Reproduc- tion prohibited under copyright convention unless written pemziss
7、ion is granted by the Manufacturers Stan- dardization Society of the Yalve and Fittings Indusw, Inc. Originally Approved October 1992 Copyright 0 1992 by Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. Printed in U.S.A. i Copyright MSS Provided by IHS under license wit
8、h MSSLicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/06/2007 08:20:02 MSTNo reproduction or networking permitted without license from IHS -,-,- MSS STANDARD PRACTICE SP- 1 1 1 TABLE OF CONTENTS SECTION O 1 5 6 7 8 9 10 PAGE PURPOSE 1 SCOPE 1 DEFINITIONS . 1 PRESSURE RATIN
9、G . 1 MATERIAL . 1 DESIGN 2 TESTING 4 WORKMANSHIP 4 PAINT AND COATING . 4 MARKING AND SHIPPING . 4 ASSEMBLY, INSTALLATION. AND FIELD TESTING . TABLE 1 Maximum Centerline to Branch Flange Dimensions . 3 ANNEX A Referenced Standards and Applicable Dates 6 II Copyright MSS Provided by IHS under license
10、 with MSSLicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/06/2007 08:20:02 MSTNo reproduction or networking permitted without license from IHS -,-,- SP-111 MSS STANDARD PRACTICE O. 1. 2. GRAY-IRON and DUCTILE-IRON TAPPING SLEEVES PURPOSE is equipped with a cutter, which ex
11、tends through the waterway of the tapping valve and branch of the sleeve, 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
12、branch pipeline is connected to the tapping valve. 2.4 Main, A pipe used in a water or sewerage sys- tem for distribution of water or c o 1 1 ec t i o n of sewage. 2.5 in accordance with this Standard Practice. T O provide information for standardization of tap- Pini? sleeves used to make COnnection
13、s to existing mains. SCOPE 1.1 This Standard Practice covers the performance and design requirements of gray-iron or ductile-iron tapping sleeves used in water and sewerage systems. Tapping sleeves are used with tapping valves to per- mit connection to an existing main without interrup- tion of serv
14、ice- Tapping valve requirements are not covered in this standard. Manufacturer. The party producing products 1.2 This standard covers the performance and de- sign requirements of tapping sleeves of nominal pipe Sizes from 4” to 48” NPS with flanged Outlet branch connections 2” through 42” NPS. 1 3 a
15、re not covered by this standard. 2.6 p s . Nominal Pipe Size. 2.7 NpK National Standard Taper Pipe Thread. 2.8 Purchaser. The party entering into a contract or agreement to purchase products manufactured according to this Standard Practice. Tapping saddles and fabricated tapping sleeves DEFINITIONS
16、2.9 Working Pressure Rating. Maximum pressure to which the in-service tapping sleeve should be sub- Under this standard the following definitions shall jected. Other definitions may be found in MSS SP-96. apply: 2. i Tapping Sleeve. A split fitting which can be assembled around an existing main to m
17、ake a branch or “tee” connection to the main with a tapping valve and tapping machine. 3. PRESSURE RATING The minimum working pressure rating shall be 150 psig. 2.2 Tapping Valve. A special gate valve designed with end connections to provide a waterway opening clearance for tapping operations, as we
18、ll as, proper 4. MATEU alignment and positioning OfataPPing sleeve, valve, and tapping machine. 2e3 A machine wed to cut a hole into an existing pressurized or non-pressurized main through the use of a tapping sleeve and tapping valve for mounting and positioning the tapping ma- chine with respect t
19、o the main. The tapping machine 4.1 General. The requirements of ANSI, ASTM, AWWA, or other standards to which reference is made in this text shall govern the physical and chemical characteristics ofthe tapping sleeve components. 1 Copyright MSS Provided by IHS under license with MSSLicensee=IHS Emp
20、loyees/1111111001, User=listmgr, listmgr Not for Resale, 03/06/2007 08:20:02 MSTNo reproduction or networking permitted without license from IHS -,-,- 4.2 Cast Iron. 4.2.1 Gray iron shall be in accordance with ASTM A 126 Class B. 4.2.2 Ductile iron shall be in accordance with ASTM A 536. 4.3 Bolting
21、. 4.3.1 Studs and bolts connecting pressure contain- ing parts shall develop the physical strength require- ments of ASTM A 307 and may have either regular square or hexagonal heads with dimensions conform- ing to ANSI B 18.2.1. Bolts, studs, and nuts shall be zinc-coated (ASTM A 153 or ASTM B 633)
22、or coated by some other process disclosed to and acceptable to the purchaser. The purchaser may speciQ that bolts, studs, and nuts shall be made from a corrosion-resis- tant material. 4.3.2 Tee-head bolts connecting pressure containing parts shall meet the requirements of ANSVAWWA C 1 1 UA21.11. 4.4
23、 EIastomers. Elastomers shall be compounded to meet ASTM D 2000 and have physical properties suitable for the application. 4.5 Coating. See Section 8 of this Standard Prac- tice. 5. DESIGN 5. I General. Tapping Sleeves shall be designed with separable component parts which permit assem- bly on an ex
24、isting main. Each tapping sleeve shall have a branch connection whose port is perpendicu- lar to and centered on the axis ofthe main. The branch connection provides an attachment point for a tap- ping valve to allow tapping into a main. 5.2 Main Types and Diameters. Tapping Sleeves may be designed f
25、or use on various types and classes of pipe including ductile-iron, gray-iron (static cast and centrifugally cast), asbestos cement, PVC and steel. These different classes and types of pipe may have widely varying outside diameters for each nomi- nal pipe size. 5.3 Tapping Sleeve Sizes. The manufact
26、urer should identiS, for each size and type of tapping sleeve they produce, the range of pipe diameters and type of pipe on which each tapping sleeve may be used. Purchas- ers should select tapping sleeves according to the di- ameter of the pipe they wish to tap. 5.4 Tapping Sleeve- To-Main Sealing.
27、 5.4.1 Provisions shall be made for a watertight seal at rated working pressure between the pressure con- taining tapping sleeve mating parts and between the tapping sleeve assembly and the main. 5.4.2 A test plug with 318 inch minimum size NPT threads shall be provided so that purchasers may hydros
28、tatically pressure test the water tightness of the sleeve assembly on the pipe, the sleeve-to-valve connection at the branch connection flange, and the tapping valve gate before tapping into the main. Tapped holes for the text plug shall conform to MSS SP-45 and if required to provide adequate threa
29、d en- gagement, bosses for the tapped holes shall also con- form to MSS SP-45. WARNING: For personal safety reasons, DO NOT use compressible fluid such as compressed air to check for sealing tightness. 5.5 Branch Connections. 5.5.1 To ensure clearance for the tapping machine cutter as it passes thro
30、ugh the tapping sleeve and into the main, the inside diameter (I.D.) of the branch connection shall be at least 1/4 inch larger than the nominal pipe size of the branch connection. 2 Copyright MSS Provided by IHS under license with MSSLicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for
31、Resale, 03/06/2007 08:20:02 MSTNo reproduction or networking permitted without license from IHS -,-,- MSS STANDARD PRACTICE SP-111 36 x 24 36x30 TABLE 1 - MAXIMUM DIMENSION (A) FROM CENTERLINE TO BRANCH FLANGE FOR USE ON GRAY-IRON AND DUCTILE-IRON PIPE -114 26-11116 Connecting Joint between Valves (
32、Reference MSS S % -60) Tapplng Sleeve & Tappin Connecting Joint between Tapping Machines & Tapping vyves (Refemwe MSSP-113) 30x8 30x10 30x12 24-1 1/16 24-11116 24-11116 Tap Ing Sleeve kA-/ (RePeience MSS S P - I ) Tacping Valve TapplngMachine 3 6 x 2 0 I 27-1 1 4 i 20-11116 2 6 1 1116 14 x 10 14x 12
33、 I 14x14 I 15-112 I I I p 30-114 i 16x4 1 15 B I 6x2 I 8 I 1 6 x 10 16-im 16x 12 16-1IE 16 x 14 16x 16 17-118 18x6 17-im 24 x 24 22-911 6 23-11116 23-114 42 X 14 42 x 18 -14 L I 1 8x3 I 10 I I I I d 42 x 30 29-718 42x36 29-718 316116 42 x 42 48x6 33-1t2 48x6 33-112 48 x 10 33-1 R 48x 12 3Ll R I 10x3
34、 I 10 I p J 30x24 11416 11-112 11-114 lox 10 11-3/16 11-112 I I I I I 12x3 I 12-114 I E 12-11116 1 I 48x16 I 34-114 I i 12x6 I 12-112 I F I 36x6 26-13/16 12 x 10 12 x 12 12-718 14-718 27-112 27-114 48x30 33-17/32 4 8 X S 48x42 24x3 I 19-7/16 1 I 36x16 27-114 I Note: For other pipe materials, such as
35、 asbestos-cement, PVC, steel, etc., consult the tapping .sleeve manufacturer. (a) Dimensions are in inches. 3 Copyright MSS Provided by IHS under license with MSSLicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/06/2007 08:20:02 MSTNo reproduction or networking permitted wi
36、thout license from IHS -,-,- MSS STANDARD PRACTICE SP-111 5.5.2 .The connecting flange of the branch connec- tion shall be in accordance with MSS SP-60 for sizes through 12 inch. Sizes larger than 12 inch are not standardized at this time. For these sizes, purchas- ers should verify dimensional comp
37、atibility by con- sulting with the tapping sleeve and tapping valve manufacturer( s). 5.5.3 Slots with the same width as the diameter of the bolt holes may be provided instead of holes in the branch connection flange. Some combinations oftap- ping sleeves and valves may require the use of threaded s
38、tuds and nuts. 5.5.4 The dimension fiom the centerline of the main to the flanged outlet of the branch connection should not exceed the values listed in Table 1. This is to ensure the tapping machine travel will be adequate to make a successful tap. 6.3 Additional Tests Required by Purchaser. If tes
39、ts other than those prescribed in this standard are required by the purchaser, such tests shall be speci- fied on the purchase order. Although it is not cus- tomary for the manufacturer to make hydrostatic tests of the tapping sleeve, such tests may be made on spe- cial order at additional cost. If
40、hydrostatic tests by the manufacturer are required by the purchaser for an order of tapping sleeves, the tapping sleeves shall withstand, without leakage, hydrostatic test pressures not to exceed one and one half times the rated work- ing pressures. 7. WORKMANSHIP All parts shall conform to their re
41、quired dimensions and shall be free from defects that could prevent proper functioning of the tapping sleeve. All cast- ings shall be clean and sound and have no defects that could impair their service. 8. PAINT AND COATING 6.1 Proa f-o $Design Tests. . i. i At ieast one production prototype of each
42、 size and type of tapping sleeve shall be hydrostatically tested by the manufacturer to three times (3x) the rated working pressure when assembled on a test sec- tion of pipe. There shall be no fracture of the pres- sure containing parts and there shall be no leakage through the metal. The test shal
43、l be a minimum of 5 minutes in duration. Leakage at gasketed joints shall not be cause for failure. 6.1.2 Following completion of testing in 6.1.1 , the gaskets may be replaced or reseated if necessary. The tapping sleeve shall then be hydrostatically tested at rated working pressure for a minimum o
44、f 5 minutes and there shall be no leakage. 6.2 Production Hydrostatic Testing. No hydro- static testing is required on production apping sleeves prior to shipment. Paint used for coating ferrous surfaces of the tap- ping sleeve components shall conform to the require- ments of Federal Specification
45、TT-C-494B for Coat- ing Compound, or equal. Special coatings such as those conforming to MSS SP-98 or ANSIIAWWA C550 may be specified by the purchaser. The special coating shall be applied to the interior and/or exterior as specified on the pur- chase order. 9. MARKING AND SHIPPING 9.1 Marking. Mark
46、ings shall be either cast on gray- iron or ductile-iron tapping sleeves or permanently marked. In each.case the marking shall show the manufacturers name or mark, the year of manufac- ture, the size of sleeve and its branch connection and the designated working pressure. The letters “DI” or the word
47、 “Ductile” shall be cast on ductile-iron tap- ping sleeves. 4 Copyright MSS Provided by IHS under license with MSSLicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/06/2007 08:20:02 MSTNo reproduction or networking permitted without license from IHS -,-,- STANDARD PRACTICE S
48、P-111 MSS 9.2 Preparation for Shipment. The manufacturer shall use reasonable care in preparing tapping sleeves for shipment. 1 O. ASSEMBLY, INSTALLATION. AND FIELD TESTING 1 O. 1 General. The manufacturers instructions should be followed for assembling the tapping sleeve on the main. 10.2 Sleeve Selection. The sleeve should be checked to make certain it is recommended for the actual O. D. size, out-of roundness and type of pipe material on which it-is to be installed. 10.3 Main Outside Surface. The external surface of the main should be cleaned and checked for