Document B5am1L5wx9bwjJ6eR2kZ3RKRw

BARON WHITAKER. PRESIDENT DONAL BRETING. Vice Pres. . Label Service W. A. FARQUHAR. VICE PRES. . ELECTRICAL NORMAN H. DAVIS. JR. Assistant Vice President FOUNOED 1094 K. S. GEJGES. Senior Vice President E. N. DAVIS. Vice Pres. - Fire Protection W. S. AUSTIN. Vice pres, and Secretary T. F. RAMSEY. JR.. TREASURER z:? E. ohio sr 333 PTINCSTEN BOAQ CMICAOO. ILL. 60611 NO1TH0RCOK, ILL 6006? Amrriran lusuraurr Assttriatioit 1265 WALT WHITMAN HOAD 1655 SCOTT BIVQ MELTTL L E.'T I . fc". Y--|~7a6 SANTA CLARA. CALIF. S5050 Pile EX2456 Assignment 66K1715 June 17j 1966 REPORT on PIPE AND COUPLINGS - ASBESTOS CEMENT Cement-Asbestos Products Co. Ragland, Alabama CAPCO KIN 0000549 Pile Ex2456 Page 1 Issued: 6-17-66 DESCRIPTION PRODUCT COVERED: Asbestos-cement pressure pipe and couplings in 4 to 12-in. sizes, inclusive, 150-psi pressure class. The pipe is 13 ft in length. Service connections in 3/4-in. size for use with pipe sizes 4 to 10 in-,, inclusive, 150-psi pressure class. GENERAL CHARACTER: The asbestos-cement pressure pipe and couplings covered by this Report are manufactured from a mixture of asbestos' fibers, Portland cement, and silica flour. A description of the method of fabrication is given in a latter section of this Report. Construction features of the pipe couplings and ring gaskets are shown by Pig. 1. . The design of the pipe and couplings will permit slight angular deflection at the joints so that a pipe line may belaid in curves of large radii. USE: The pipe and couplings covered by this Report are intended for use in underground water service where the working pressure does not exceed that for which it is rated and when installed in accordance with the manufac turer's installation instructions. MARKING: Pipe - Each length of pipe is marked as follows: 1. Manufacturer's trade name - "Cement-Asbestos Products Co." 2. Nominal inside diameter, pressure class. 3. Test pressure "T-350 PSI" for Class 100 and "T-525 PSI" for Class 150. CAPCO KIN 0000550 File Ex2456 Page 2 Issued: 6-17-66 4. Date and shift of manufacturer. 5. Underwriters1 Laboratories, Inc. label reading: UNDERWRITERS' LABORATORIES, INC. LISTED NONMETALLIC PIPE FOR WATER MAINS Couplings - Each coupling is stenciled with the following marking. 1. Manufacturer's trade name - "Cement-Asbestos Products Co." 2. Nominal inside diameter, pressure class. 3. Test pressure "T-350 PSI" for Class 100 and "T-525 PSI" for Class 150. Rubber Sealing Rings - Each ring is marked with the following information molded into it. 1. Ring manufacturer's mark, " ." 2. Year of manufacture (may be indicated by a code letter). 3. The size and pressure class for which its use is intended. TRANSPORTATION AND INSTALLATION OF PIPE: TRANSPORTATION Pipe is normally loaded on skids, secured by steel straps, and transported in flat-bodied trucks, or railroad cars. CAPC0 KIN 0000551 Pile Ex2456 Page 3 Issued: 6-17-66 UNLOADING Unloading is by hand or with the aid of ropes. Skids and hoisting equipment are employed for excessive drops and larger sizes. DISTRIBUTION After unloading, the pipe is distributed along the trench site, leaving the couplings and rubber rings in a central storage point until used, in such a manner as to protect the rubber from exposure to sun. The pipe and cou plings may also be delivered assembled with one gasket in place. TRENCHING AND LAYING The trench is dug to allow proper clearances for working space at the sides of the pipe and for coupling clearance under the pipe. ASSEMBLY OF "PERMAFLEX" The parts forming the joint are the pipe ends, a coupling, and tvjo rubber sealing rings. Before making the joint, the pipe ends, rubber rings, and interior of the couplings are thoroughly cleaned. 1. The rubber sealing rings are fitted inside the coupling in the gasket recesses. The outside surface of the pipe is lubricated with a hydrogenated vegetableoil lubricant. 2. The coupling is then placed over the last pipe laid, and pulled on the pipe until stopped by a shoulderon the pipe, in those cases where the pipe is delivered with the coupling and one gasket in place, the other gasket is Inserted and the plain end of the next pipe is assembled into the coupling. CAPCO KIN 0000552 Pile Ex2456 Page 4 Issued: 6-17-66 3. The new pipe length to be laid is then brought up so that It Is in alignment. The pipe is pulled into the coupling until the shoulder of the pipe comes in contact with the sealing ring. In the larger sizes, it may be necessary to aid the assembly of pipe and couplings by using a steel bar as a lever, pushed into the ground and acting against a wooden block inserted between the steel bar and the pipe or coupling. A jack and chain may also be used. In some in stances the pipe can be pushed by hand. 4. After the joint is made, deviations in align ment can be adjusted and slight angular deflections may be made by lifting and moving the end of the last laid pipe. 5. Disassembly can be accomplished by lifting the end of the pipe or moving it from side to side and at the same time pulling the pipe from the coupling. Capq Kim 000553 i *. * ' CAPCO KIN 0000555 EX 2456 FIG. 3 C66-8 3 5 CAPCO KIN 0000556 Pile Ex2456 Page Tl-1 Issued: 6-17-66 TEST RECORD NO. 1 SAMPLES: Representative production samples of asbestoscement pipe and couplings in sizes and types covered by this Report were used in the following tests, except as noted. EXAMINATION OP PIPE AND COUPLINGS: METHOD The sample pine, couplings, and rubber rings were examined to check the dimensions and design features against the manufacturer's drawings and manufacturing tolerances. The production methods and facilities at the manufacturer's plants were reviewed to develop information regarding the uniformity of production and the inspection program followed in production. RESULTS The dimensions of the pipe and couplings examined were found to be within the tolerances established by the manufacturer. The manufacturing procedures followed and the manufacturer's inspection and test program are conducive to the production of uniform pipe and couplings, and the elimination of products not measuring up to the shop standard. BURSTING TESTS: METHOD Individual lengths of pipe were installed in the plant hydrostatic test machines. See Pig. 2A. The assembly was filled with water, vented of air, and subjected to gradually increasing pressures until a value of four times the rated pressure was obtained. This was held for 5 sec, whereupon the pressure was increased until the pipe burst or until the maximum of the apparatus was attained. CAPCO KIN 0000557 Pile Ex2456 Page Tl-2 Issued: 6-17-66 PiESULTS The results of these tests are recorded in the following table. The pressures at which the pipe burst were, in all cases, in excess of requirements. Pipe Size, In. Pressure Class Bursting Pressure PSI 4-1r, - ... 6 6 8 8 10 10 12 . 12 150 150 150 150 150 150 150 150 150 150 980 t 1000 t 905 950 740 730 810 810 670 700 t - These samples did not burst maximum of test apparatus. Hydrostatic test samples are required to sustain a pressure of at least four times the rated pressure or 5 sec. FLEXURE TEST: METHOD Two full-length samples of the 4, 6, and 8-in. size pipe were placed on "V" block load supports in a tension and compression testing machine and loaded at the third points. See Fig. 2B. Each sample was loaded at a uniform rate until failure occurred. Note was made of the maximum load applied and the character of the failure. CAPCO KIN 0000558 File Ex2456 Page Tl-3 Issued: 6-17-66 RESULTS The following table presents the results of these tests in comparison with the minimum flexure load requirements. Pipe Size, In. Pipe Length, Ft Test Load Span, Span, Pressure Ft Ft Class Required Minimum Load, Lb Load at Failure, Lb 4 13 12 4 150 4 13 12 4 150 6 13 12 4 150 6 13 12 4 150 8 13 12 4 150 8 13 12 4 150 1000 1000 2800 2800 5700 5700 1330 1410 3110 2990........... 6l40 6060 RING CRUSHING TESTS: SAMPLES Unmaenined samples. 12 in. long, of each size pipe viere selected from production stock for these tests. METHOD Each ring was placed in a uo:rizo.ntal position between wooden-b.lock searings in a tens.ion and compression testing machine and loaded to failure . See Flg. 2C. Obser" vation.s were made to note the maximum load. RESULTS The following table presents the res ults of these tests in comparison with the required minimum crushing load Pipe Size, In. Pressure Class Required Minimum Load, Lb Actual Load, Lb 4 150 5400 9720 4 150 5400 9130 S 150 5400 7890 6 150 5400 7300 CAPCO KIN 0000559 Hie Ex2456 Page Tl-4 Issued: 6-17-66 (Table Cont'd) Pipe Size, In. Pressure Class . Required Minimum Load, Lb Actual Load, Lb 8 150 5500 9130 8 150 5500 9300 10 150 7000 7030 10 150 7000 7090 12 150 76OO 8380 12 150 7600 9350 HYDROSTATIC TESTS OF COUPLINGS: SAMPLES Samples of each size of coupling were used in these tests. METHOD Samples of each size of coupling were installed In the plant coupling tester and subjected to a hydrostatic proof test of four times the rated pressure for 5 sec, where upon the pressure was increased to burst the coupling. RESULTS The couplings burst at the pressure indicated in the following table. Pipe Size, In. Pressure Class Bursting Pressure, PSI 4 150 900 4 150 930 6 150 900 6 150 900 8 150 790 8 150 870 10 150 820 10 150 770 12 150 730 12 150 630 CAPCO KIN 0000560 file Ex2456 Page Tl-5 Issued: 6-17-66 SERVICE CONNECTION (CORPORATION STOP) TESTS: At least two full-length samples each of pipe sizes 4 to 10 in., inclusive, in the 150-psi pressure class, were used. Three-quarter-inch service connections were also used. METHOD Each pipe sample was cut in two, one-half placed aside as a control sample and the other half was drilled and tapped for attachment of a 3/4-in. service connection. The service connection was attached following the manufac turer's installation instructions. Each sample including the control samples, was subjected to a pressure of four times the rated pressure for 5 sec. The pressure was then increased until the pipe burst. RESULTS The results of this test are recorded in the following table: Pipe Size, In. Sample__________ Maximum Pressure, PSIRemarks 4 A, control 4 A, with connection 4 B, control 4 B, with connection 4 c. control 4 c. with connection 6 A, control 6 A, with connection 6 B, control 6 B, with connection 6 c. control 6 c. with connection 900 620 950 890 970 770 1000 630 950 770 950 750 Pipe burst Pipe cracked across stop Maximum of apparatus Pipe cracked across stop Maximum of apparatus Pipe cracked across stop Maximum of apparatus Pipe cracked across stop Maximum of apparatus Pipe cracked across stop Maximum of apparatus Pipe cracked across stop CAPCO KIN 0000561 Pile Ex2456 Page Tl-6 Issued: 6-17-66 (Table Cont'd) Pipe Size, In. Sample Maximum Pressure, PSI Remarks 8 A, control 8 A, with connection 8 B, control 8 B, with connection 10 A, control 10 ' A, with connection 10 B, control 10 B, with connection 10 c. control 10 c. with connection 750 700 700 655 730 675 620 600 610 610 Pipe burst at end connection Pipe cracked across stop Pipe cracked at end Pipe cracked across stop Pipe burst Pipe cracked across" stop Pipe burst Burst at 6 sec Pipe burst Pipe cracked across stop ASSEMBLY AND DISASSEMBLY TESTS: SAMPLES Samples of the 8-in. Class 150 .and 12-in. Class 150 pipe and couplings specially machined to the minimum cou pling and maximum pipe dimensions permitted by the manufac turer's tolerances were used in these tests. METHOD The spigot ends of the pipe were given a coating of lubricant and the couplings were provided with the sealing ring and spacer gaskets. After the pipe and couplings were aligned, the assembly was made, following the manufacturer's installation instructions. RESULTS The assembly of two lengths of pipe and one coupling was accomplished with reasonable ease in all sizes. Dis assembly of the pipe was also accomplished without undue difficulty. Examination of the disassembled samples showed no damage to the pipe, coupling, or gaskets. CAPCO KIN 0000562 Pile Ex2456 Page Tl-7 Issued: 6-17-66 RESTRAINED JOINT TESTS: SAMPLES Pull-length samples of the 8-in. Class 150, and 12-in. Class 150 pipe with couplings of like sizes and classes were used in these tests. Some of the pipes were machined to the minimum dimensions permitted by the manufacturer's tolerances, while some of the couplings were machined to the maximum dimensions, and these were used to form the joints. METHOD Test lines of the pipe and couplings, together with rubber-ring gaskets consisting of four joints and" five lengths of pipe were assembled in accordance with the manu facturer's installation instructions. The joints were de flected as shown in the test record. The pipeline was filled with water, vented of air, and subjected to increas ing pressures in 50-psi increments up to twice the maximum rated pressure. Each increment of pressure was maintained until the Laboratories engineer was satisfied as to the equi librium of the joint. Each test line was cycled twice in this manner from 0 to 300 psi to 0. Following this, the pressure was increased until failure occurred. The test assembly is shown by Pigs. 3A and 3B. RESULTS In the tests with the assembled line of pipe and couplings, no leakage occurred at a pressure of twice the rated pressure of the test line. Specific test data are shown in the following table. Pipe Size, In. 8 12 Pres sure Class 150 150 Maximum Joint Deflection, Leg Maximum Pressure, PSI Remarks 5.42 5.33 550 End cap leaked at maxi mum pressure 390 End pipe began moving and fourth coupling broke CAPCO KIN 0000563 Pile Ex2456 Page Tl-8 Issued: 6-17-66 PHYSICAL TESTS OF SEALING RINGS: METHOD Representative samples of the gaskets were subjected to an accelerated oxygen pressure aging test for 96 hr in an oxygen bomb having a temperature of 70 C with oxygen at a pressure of 300 psi. The tensile strength and elongation of the samples were determined before and after the aging period. The hardness was measux'-ed before aging with a Shore-Type A durometer- hardness gauge which has a scale graduated from 0 to 100. Two-inch gauge marks were stretched to 6 in., held for 2 min, then released and measured 2 min later. RESULTS Before Aging After Aging Per Cent of Original Average Tensile Strength, PSI 2594 Average Elongation, Per Cent 455 Hardness Sample recovered to 2.10 in. 55 2031 355 78 78 FACTORY METHODS: The factory of Cement-Asbestos Products Co. was visited by a representative of Underwriters' Laboratories, Inc. for the purpose of obtaining general information re garding the manufacture of asbestos-cement pipe and couplings covered by this Report and detailed information relative to the features of factory equipment and Inspection that have a bearing on the quality of materials employed, character of the workmanship, the uniformity of the finished product, and practicability of handling and shipping the pipe and couplings. The following information covers briefly the manufacture of asbestos-cement pressure pipe and couplings. CAPCO KIN 0000564 Pile Ex2456 Page Tl-9 Issued: 6-17-66 Manufacturing Process - These asbestos-cement pipe and couplings are manufactured by the Mazza Process from an initimate mixture of asbestos fiber, Portland cement, and silica flour. A mixture of asbestos fiber, cement, silica flour, and water is conveyed to a vat provided with a hollow rotating cylinder, sheathed with a fine-metal gauze. A thin uniform layer of the mixture adheres to the sheath, and is transferred to an endless belt of felt equipped with two suction chambers to draw off excess water. The film of asbestos cement, approximately 0.005 in. thick then passes over a polished-steel mandrel onto which the required thickness is built up. While winding the pipe, a pressure is exerted on the mandrel to insure a homogenous compact product. Coupling stock is made in the same manner as the pipe, but is built up to a greater thickness for a given size. After forming to the required size, the mandrel is immediately removed and the pipe is passed through a precured oven of steam for approximately 1-1/2 hr. The mandrel is then removed and the pipe is stored for at least 8 hr in a moist atmosphere. The pipe is then given a final cure by autoclave with steam at 115 psi for 16 hr. After curing, the pipe is cut to the proper length and the ends machined to accommodate the couplings. Coupling stock is cut and machined to proper dimensions before auto claving. Each finished pipe and coupling is subjected to a hydrostatic test of three and one-half times rated pressure and each pipe in the 4, 6, and 8-in. size is given a flexural test at the proof test loads specified in the Laboratories 1 requirements. Automatic recorders on the pipe and coupling hydrostatic testers and on the pipe flexural tester record each test for review by quality-control personnel. MRS CAPCO KIN 0000565 File Ex2456 Page Cl Issued: 6-17-66 CONCLUSIONS The following conclusions apply to the pipe and couplings covered by this Report when used in public and private waterwork systems and connections to such systems, for the rated working pressures of the pipe and couplings (150 psi). PRACTICABILITY: The pipe and couplings can be properly handled and installed under conditions ordinarily met in service by those reasonably familiar with the installation of asbestoscement pipe. STRENGTH: The pipe, couplings, and service connections covered by this Report, when installed according to the methods advocated, are capable of withstanding the working pressures for which they are designed and the stresses to which they are lUkely to be subjected in service. These pipe and couplings meet the strength require ments, as evidenced by the results of the bursting test, ring crushing tests, restrained joint test, and flexural tests. The service connection features meet the strength requirements as evidenced by the results of the service connection tests. UNIFORMITY: The facilities and methods employed in the manu facture of the pipe and couplings covered by this Report are such as to insure an accurate and uniform product. Examination of the pipe and couplings show that a high degree of uniformity is maintained in the manufacture of this product. The manufacturer maintains a rigid in spection program to insure uniformity of the product within established manufacturing procedures. CAPCO KIN 0000566 Pile Ex2456 Page C2 Issued: 6-17-66 CONFORMITY: The pipe and couplings covered by this Report are in conformance with the requirements of the Laboratories* Outline of Proposed Investigation for Asbestos-Cement VJater Pipe and Couplings (Subject 107). FOLLOW-UP SERVICE: The asbestos-cement pipe and couplings covered by this Report will be placed under the Label Service. Report by: . ' /'/ . / -'w' : t/ ,'/ MILES R SUCEOMEL Project Engineer- Fire Protection Department Reviewed by: j. /3. E. AUCK Associate Managing EngineerFire Protection Department MRS:pe CAPCO KIN 0000567 I UNDERWRITERS' LABORATORIES, INC. CHICAGO-NORTHBROOK. ILL.-MELVILLE, N.Y.-SANTA CLARA. CALIF. an independent, not-for-profit organization testingfor public safety File Ex:- 36 Assignment CoMC328A December 2, 1968 REPORT on ASBESTOS -CEMENT PIPE AND COUPLINGS Cement-Asbestos Products Co. Ragland, Alabama CAPCO KIN 0000569 File Ex2456 Page 1 Issued: 12-2-68 DESCRIPTION PRODUCT COVERED: Asbestos-cement pressure pipe and couplings in 4-14 in. sizes, pressure Class 200 and 14 and 16 in. sizes, pressure Class 150. The pipe is 13 ft in length. GENERAL CHARACTER: The asbestos-cement pressure pipe and couplings covered by this Report are manufactured from a mixture of asbestos fibers, portland..cement, and silica flour. The design of the pipe and couplings will permit slight angular deflection at the joints so that a pipe line may be laid in curves of large radii. USE: ` The pipe and couplings covered by this Report are intended for use in underground water service where the working pressure does not exceed that for which it is rated and when installed in accordance with the manufacturer's installation instructions. MARKING: Pipe - Each length of pipe is marked as follows: 1. Manufacturer's trade name - "Cement-Asbestos Products Co." 2. Nominal inside diameter, pressure class. 3. Test pressure "T-700 PSI" for Class 200 and "T-525 PSI" for Class 150. 4. Date and shift of manufacture. 5. Underwriters' Laboratories, Inc., label reading: UNDERWRITERS' LABORATORIES, INC. LISTED NONMETALLIC PIPE FOR WATER MAINS CAPCO KIN 0000570 File Ex2456 Page 2 Issued: 12-2-68 Couplings - Each coupling is stenciled with the following marking. 1. Manufacturer's trade name - rCement-Asbestos Products Co." 2. Nominal inside diameter, pressure class. 3. Test pressure "T-700 PSI" for Class 200 and "T-525 PSI" for Class 150. CAPCO KIN 0000571 File Ex2456 Page Tl-1 Issued: 12-2-68 TEST RECORD NO. 1 SAMPLES: Representative production samples of asbestos-cement pipe and couplings in sizes and types covered by this Report were used in the following tests, except where noted. EXAMINATION OF PIPE AND COUPLINGS: METHOD The sample pipe, couplings, and rubber rings were examined to check the dimensions and design features against the manufacturer's drawings and manufacturing tolerances. The production methods and facilities at the manufacturer's plants were reviewed to develop information regarding the uniformity of production and the inspection program followed in production. . RESULTS The dimensions of the pipe and couplings examined were found to be within the tolerances established by the manufacturer. The manufacturing procedures followed and the manufacturer's inspection and test program are conducive to the production of uniform pipe and couplings, and the elimination of products not measuring up to the shop standard. HYDROSTATIC TESTS OF PIPE AND COUPLINGS: METHOD Individual lengths of pipe and coupling were installed in a hydrostatic test machine. The assembly was filled with wate vented of air, and subjected to a gradually increasing pressure up to a value of four times the rated pressure (600 psi for Class 150 and/or 800 psi for Class 200). This pressure was maintained for 5 sec, whereupon it was increased until either failure occurred or the capacity of the test apparatus was reached. RESULTS The results of these tests are recorded in the following tabulations: CAPCO KIN 0000572 File Ex2456 Page Tl-2 Issued: 12-2-68 HYDROSTATIC TEST RESULTS Size, In. 4 4 6 6 8 8 10 10 12 12 14 14 16 16 Pressure Class 200 200 200 200 200 200 200 200 . 200 200 150 150 150 150 Pressure At Burst Or Maximum Pressure PSI Pipe Coupling 930 1000 1000 t 1000 t 1000 910 940 875 875 84o t 725 650 640 665 1000 t 1000 t 1000 t 1000 t 960 860 960 t 1060 t 960 t 1010 t 600 600 960 t 960 t Reauired Pressure PSI Pipe Coupling 800 800 824 840 800 800 838 874 833 . 773 633 629 600 600 800 800 800 800 784 800 800 859 801 600 600 600 647 t - No burst limit of apparatus. FLEXURE TESTS: METHOD Two full lengths of the 4, 6 and 8 in. sizes, were placed on supports 12 ft apart. The load was applied by the manufacturer's production testing machine at a uniform rate at the third points, 4 ft apart and located 4 ft from the lower supports. Each sample was loaded in this manner until failure occurred and note was made of the maximum load applied and the character of the failure. RESULTS The following table presents the results of these tests in comparison with the minimum flexure-load requirement for a 12 ft span. CAPCO KIN 0000573 File Ex2456 Page Tl-3 Issued: 12-2-68 FLEXURE TEST RESULTS Pipe Size In. Pressure Class Minimum Required Load3 Lb______ Maximum Load Obtained Lb 4 200 4 200 6 200 6 200 8 200 8 - 200 1400 1400 3700 3700 7600 7600 1410 1410 3700 3700 7640 7600 RING CRUSHING TESTS: SAMPLES The 12 in. samples were cut from each size pipe used in these tests. METHOD ' Each ring was placed on two lower bearings consisting of two straight wooden strips having their interior top edges rounded to a radius of approximately 1/2 in. Load was applied by an upper bearing of a straight wood block. The load was applied until failure occurred and note was made of the maximum load at failure. RESULTS The following table presents the results of these In comparison with the minimum required crushing load. Pipe Size In. Pressure Class Minimum Required Load j Lb Maximum Load Obtained Lb 4 4 6 6 8. 8 10 10 12 12 200 200 200 200 200 200 200 200 200 200 8700 8700 9000 9000 9300 9300 11000 '11000 11800 11800 9220 10800 12930 12950 11590 . 12750 12850 13350 15950 16150 CAPCO KIN 0000574 File Ex2456 Page Tl-4 Issued: 12-2-68 (Table Cont'd) Pipe Size In. Pressure Minimum Required Class Load, Lb Maximum Load Obtained Lb 14 200 14 200 16 200 16 200 14 150 14 . 150 16 150 16 150 13500 13500 15400 15400 8600 8600 9200 9200 15900 15700 18860 18700 9430 11400 11590 11690 ASSEMBLY AND DISASSEMBLY TESTS: SAMPLES Samples of the 16 in. Class 200 pipe and couplings specially machined to the minimum coupling and maximum pipe dimensions permitted by the manufacturer's tolerances were used in these tests. METHOD The spigot ends of the pipe were given a coating of lubricant and the couplings were provided with the sealing ring and spacer gaskets. After the pipe and couplings were aligned, the assembly was made, following the manufacturer's installation instructions. RESULTS The assembly of two lengths of pipe and one coupling was accomplished with reasonable ease in all sizes. Disassembly of the pipe was also accomplished without undue difficulty. Examination of the disassembled samples showed no damage to the pipe, coupling, or gaskets. CAPCO KIN 0000575 File Ex2456 Page Tl-5 Issued: 12-2-68 RESTRAINED JOINT TESTS: SAMPLES Full length samples of the 12 in. Class 200, and 16 in. Class 150, and 16 in. Class 200 pipe with couplings of like sizes and classes were used in these tests. Some of the pipes were machined to the minimum dimensions permitted by the manufacturer's tolerances, while some of the couplings were machined to the maximum dimensions, and these were used to form the joints. METHOD The pipe and couplings, together with rubber ring gaskets were assembled in accordance with the manufacturer's installation instructions. Some of the joints were deflected as shown in the test record. The pipeline was filled with water, vented of air, and subjected to increasing pressure. Each increment of pressure was maintained until the Laboratories engineer was satisfied as to the equilibrium of the joint. Each teet line was cycled three times in this manner from 0 to twice the rated pressure to 0. Following this, the pressure was increased until failure occurred. Four separate tests were conducted on the 16 in. Class 200 pipe and couplings. RESULTS In- the tests with the assembled line of pipe and couplings, no leakage occurred at a pressure of twice the rated pressure of the test line. Specific test data are shown in the following table. Pipe Size In. Maximum Joint Pressure Deflection ClassDeg Maximum Pressure, _________ PS IRemarks 12 200 5 16 150 0 16 200 4 16 200 0 600 No failure - no leaks 450 No failure - no leaks 450 Chain holding pipe broke 6oo No failure - no leaks (three separate tests) WAW CAPCO KIN 0000576 File Ex2456 Page Cl Issued: 12-2-68 conclusion The product covered by this Report has been found to comply with the requirements covering the class and is judged to be acceptable for listing under the Label Service of Underwriters' Laboratories, Inc. Report by: Jh d.JfcU' Reviewed by: W. A. WEBB Project Engineer, Fire Protection Department WAW:JA MILES R. SUCHOMEL Senior Project Engineer Fire Protection Department CAPCO KIN 0000577