PMG LISTING CRITERIA FOR PUSH-FIT FITTINGS FOR POTABLE WATER TUBE AND RADIANT HEATING SYSTEMS LC1009

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1 (800) (562) A Subsidiary of the International Code Council PMG LISTING CRITERIA FOR PUSH-FIT FITTINGS FOR POTABLE WATER TUBE AND RADIANT HEATING SYSTEMS Approved April 2008 (Editorially Revised April 2010) PREFACE Plumbing, mechanical and fuel gas (PMG) listings issued by ICC Evaluation Service, Inc. (ICC-ES), are based upon performance features of the International Plumbing Code, International Mechanical Code, International Residential Code, Uniform Plumbing Code and Uniform Mechanical Code. Section of the International Plumbing Code reads as follows: Alternative materials, methods and equipment. The provisions of this code are not intended to prevent the installation of any material or to prohibit any method of construction not specifically prescribed by this code, provided that any such alternative has been approved. An alternative material or method of construction shall be approved where the code official finds that the proposed design is satisfactory and complies with the intent of the provisions of this code, and that the material, method or work offered is, for the purpose intended, at least the equivalent of that prescribed in this code in quality, strength, effectiveness, fire resistance, durability and safety. Similar provisions are contained in the Uniform Codes. ICC-ES may consider alternate listing criteria, provided the listing applicant submits valid data demonstrating that the alternate listing criteria are at least equivalent to the listing criteria set forth in this document, and otherwise demonstrate compliance with the performance features of the codes. Notwithstanding that a product, material, or type or method of construction meets the requirements of the criteria set forth in this document, or that it can be demonstrated that valid alternate criteria are equivalent to the criteria in this document and otherwise demonstrate compliance with the performance features of the codes, ICC-ES retains the right to refuse to issue or renew a listing, if the product, material, or type or method of construction is such that either unusual care with its installation or use must be exercised for satisfactory performance, or if malfunctioning is apt to cause unreasonable property damage or personal injury or sickness relative to the benefits to be achieved by the use of the product, material, or type or method of construction. Listing criteria are developed solely for use by ICC-ES for purposes of issuing ICC-ES PMG listings. Copyright 2010

2 and Radiant Heating Systems Page 2 of INTRODUCTION 1.1 Purpose: The purpose of this listing criteria is to establish requirements for push-fit fittings to be recognized in an ICC Evaluation Service, Inc. (ICC-ES), listing. 1.2 Scope: This listing criteria is intended to establish minimum criteria for the use of push-fit fittings for joining copper tubing, CPVC plastic pipe, and PEX piping materials. Push-fit fittings are used for potable water distribution piping and radiant heat piping conforming to the IPC, IMC, UPC, UMC and IRC. 1. Codes and Referenced Standards: Note: Any standard referenced herein shall be the current edition of that standard. In instances where the applicable code references a different edition of a given standard, the applicant shall also provide documentation of conformance with the code referenced standard edition International Mechanical Code, Chapter 12, Hydronic Piping. International Code Council International Plumbing Code, Chapter 6, Water Supply and Distribution. International Code Council International Residential Code, Chapter 21, Hydronic Piping, and Chapter 29, Water Supply and Distribution. International Code Council Uniform Mechanical Code *, Chapter 12, Hydronics. International Association of Plumbing and Mechanical Officials Uniform Plumbing Code *, Chapter 6, Water Supply and Distribution. International Association of Plumbing and Mechanical Officials ANSI/NSF 61, Drinking Water System Components Health Effects, National Sanitation Foundation ASME B , Pipe Threads, General Purpose (inch). American Society of Mechanical Engineers ASSE 1061, Removable and Non-Removable Push-fit Fittings, American Society of Sanitary

3 and Radiant Heating Systems Page of 12 Engineering ASTM B 88, Specification for Seamless Copper Water Tube, ASTM International ASTM D 2846, Specification for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Hot and Cold Water Distribution Systems, ASTM International ASTM F 876, Specification for Cross-linked Polyethylene (PEX) Tubing, ASTM International ASTM F 877, Specification for Cross-linked Polyethylene (PEX) Plastic Hot and Cold Water Distribution Systems, ASTM International. 1.4 Definitions: Failure: Failure is any one of the following: a. Loss of pressure resulting from leakage through the connection or body of the specimen under test. A product or connection has leaked when the test or working pressure cannot be held, and the media is evidenced outside of the fitting or connection. b. The escape of media through a breach or flaw. c. Rupture of a fitting or separation of a fitting joint Push-fit Fitting: A type of fitting that joins to a pipe or fitting by means of hand assembly with no assembly tool required. The fitting involves inserting the pipe or fitting into one end of the fitting, resulting in a positive connection. These fittings typically are comprised of elastomeric seals and corrosionresistant tube grippers. Such joints are permanent and, depending on the design, the joint may be disassembled. Fittings shall be installed in accordance with the manufacturer s published installation instructions. Connections that are caulked, threaded, soldered, cemented, brazed or welded are outside the scope of this listing criteria. Push-fit fittings are used with copper tubing, CPVC plastic pipe, or PEX tubing. 2.0 BASIC INFORMATION 2.1 Product Description: Complete information shall be submitted concerning material specifications, thickness, size and the manufacturing process.

4 and Radiant Heating Systems Page 4 of Installation Instructions: Product shall be installed in accordance with the manufacturer's instructions, and the requirements of the applicable codes and reference standards in Section Product and Packaging Identifications: The unit and the packaging shall be permanently and legibly marked with the manufacturer's name or trademark, the model number. The product shall also bear the PMG listing mark. The ICC-ES listing number shall be placed on the listed product's packaging or installation instructions..0 PERFORMANCE REQUIREMENTS.1.1 General: Copper tubing shall comply with ASTM B 88. Fitting sockets for copper push-fit connection fittings shall have tolerances for accepting copper tubing conforming to ASTM B 88. Street connections for copper push-fit fittings shall have tolerance for copper tubing complying with ASTM B 88. PEX tubing shall comply with ASTM F Threaded ends on push-fit fittings shall have pipe threads conforming to ASME B CPVC plastic pipe shall conform to ASTM D Fitting sockets for CPVC push-fit fittings shall have tolerances for accepting CPVC plastic pipe conforming to ASTM D Street connections for CPVC push-fit fittings shall have tolerance for CPVC plastic pipe conforming to ASTM D Fittings for use with potable water, including the sealing rings, shall be listed as conforming to NSF Push-fit Fittings: Push-fit fittings shall be tested according to the requirements in Section.2.1 for copper tubing, Section.2.2 for CPVC and or Section.2. for PEX. EXCEPTION: Push-fit fittings successfully tested in accordance with ASSE-1061 may be recognized for use with copper tubing, CPVC and/or PEX..2.1 Push-fit Fittings for Use with Copper Tubing: Push-fit fittings for use with copper tubing shall be tested to the requirements specified in Sections 4.1 and 4. through 4.7 using Type M copper tube. The Thermal Cycling test in Section 4.2 shall be conducted with Type L copper tube. If recognition is desired for use with annealed (soft) copper tube, results of tests as specified in Sections 4.1 through 4.7, using annealed copper tube, shall also be provided.

5 and Radiant Heating Systems Page 5 of Push-fit Fittings for Use with CPVC: Push-fit fittings for use with CPVC pipe shall be tested to the requirements specified in Sections 4.1 through 4.7, using CPVC pipe..2. Push-fit Fitting for Use with PEX Systems: Push-fit fittings for use with PEX systems shall be tested and comply with ASTM F TEST METHODS 4.1 Hydrostatic Pressure Test: Push-fit fittings shall be hydrostatic-tested in accordance with the requirements in Section or Section When testing to Section 4.1.2, there is no requirement to measure slippage For each tubing or pipe material, two of the smallest size fittings and two of the largest size fittings shall be assembled as noted in Figure 1 and subjected to the hydrostatic test pressures and temperatures noted in Section or Section The pressure shall be increased from zero to the test pressure within one minute and maintained for a minimum of 720 hours. The pressure shall be maintained within ± 10 psi (± 0.07 MPa) and the temperature shall be maintained within ± 5 F (± C) for the duration of the test. The condition of acceptance is that no failure shall occur over the duration of the test Copper Tubing: Copper tubing shall be subjected to the hydrostatic test pressure and temperatures noted in Table 1a CPVC Piping: CPVC piping shall be subjected to the hydrostatic test pressure and temperatures noted in Table 1c For each tubing or pipe material, two of the smallest fitting size and two of the largest fitting size shall be assembled as shown in Figure 1. The sample shall be filled with water and tested at the pressure, temperature and duration as specified in Table 1b. The condition of acceptance is that no failure shall occur over the duration of the test. 4.2 Thermal Cycling Test: Sample assemblies shall be thermal-cycle tested by the method defined in Section or

6 and Radiant Heating Systems Page 6 of Flow Loop: For each tubing or pipe material as noted in Sections.2 through.5, above, one assembly each of the smallest and largest fitting size shall be tested by temperature cycling from 7.4 F ±.6 F (2 C ± 2 C) to 180 F ±.6 F (82 C ± 2 C). Water at the lower temperature and at a pressure of 200 ± 5 psi (179 ± 5 kpa) shall flow through the assembly and the fitting for a minimum of five minutes; then be replaced by the higher temperature water, which shall be maintained for 15 minutes. Then the process shall be repeated. This constitutes one cycle. The process shall be continued for 5000 cycles. The test assembly shall be fabricated as shown in Figures 2 and as appropriate for the fitting size being tested and using the components shown. The temperature of the fitting assembly shall reach the target temperature within a maximum of two minutes of the water temperature s changing. The condition of acceptance is that no failure shall occur over the duration of the test Air-under-water: For each tubing or pipe material as noted in Sections.1.2 through.1.4, above, one assembly of each size shall be tested by temperature cycling from 60 F ±.6 F (16 C ± 2 C) to 180 F ±.6 F (82 C ± 2 C). Each assembly shall consist of at least six joints, randomly selected, with suitable lengths of tubing or pipe, attached to a common manifold. The tubing shall have a minimum length of 4 inches (100 mm), or at least three times the nominal size, whichever is greater. Assembly shall be in accordance with the instructions of the fitting manufacturer. The open ends of the assemblies are sealed with any suitable end closures that allow free-end mounting and that will not leak under the thermal cycling conditions. The manifold is connected to a nitrogen or air pressure source and the assemblies are pressurized to 100 ± 10 psi (689 ± 69 kpa) and immersed in water at a temperature of 60 F ±.6 F (16 C ± 2 C). The pressurized samples are checked for visible leaks. If no leaks are visible, the test cycle is started. One complete cycle shall consist of immersion in water at 180 F ±.6 F (82 C ± 2 C) for 125 seconds ± 5 seconds, air immersion at ambient temperature for 115 seconds ± 5 seconds, immersion in water at 60 F ±.6 F (16 C ± 2 C) for 125 seconds ± 5 seconds, and air immersion at ambient temperature for 115 seconds ± 5 seconds. This cycle shall be repeated 1000 times. Upon completion of the 1000 thermal cycles, the specimen assemblies are immersed again in 60 F ±.6 F (16 C ± 2 C) water and checked for any sign of gas leakage. Any visual evidence of leakage at the fitting joints or separation from the tubing or pipe shall constitute failure.

7 and Radiant Heating Systems Page 7 of Hydrostatic Rupture Test: Push-fit fittings that are hydrostatic tested in accordance with Section shall be subjected to a hydrostatic rupture test. Fittings hydrostatic tested in accordance with Section are not required to undergo this test. For each tubing or pipe material, two of the smallest size fittings and two of the largest size fittings shall be assembled as noted in Figure 1 and subjected to the hydrostatic rupture testing. Each fitting assembled shall be filled with water; and while the temperature, as noted in Table 2, is maintained, the pressure shall be increased until rupture occurs. The condition of acceptance is that no failure shall occur below the minimum rupture pressures, as specified in Table Hydraulic Shock (Water Hammer) Test: For each tubing or pipe material, two of the smallest size fittings and two of the largest size fittings shall be assembled and tested by filling with water at 68 ± 6 F (20 ± C) at atmospheric pressure and applying a hydraulic shock once every two seconds for a total of 10,000 times. The hydraulic shock shall consist of a sudden increase in pressure to 400 ± 29 psi (2759 ± 200 kpa) lasting 0.01 ± second. The condition of acceptance is that no failure shall occur over the duration of the test. 4.5 Bending Test: Test assemblies shall be fabricated using the smallest and two of the largest size fittings. Each assembly shall consist of a straight coupling with internal stop, assembled in the center of the span as shown in Figure 2 with a straight pipe or tubing at both ends. Each assembly shall be filled with water at room temperature, and pressure shall be maintained at 200 ± 5 psi (179 ± 4 kpa) for a duration of one hour. The assembly shall be centered between supports spaced 6 feet (1829 mm) apart. CPVC plastic pipe assemblies shall be centered between supports spaced 4 feet (1219 mm) apart. A vertical load, as specified in Table, shall be applied at the center of the fitting to induce bending. Condition of acceptance is that no failure shall occur over the duration of the test. 4.6 Vibration Test: For each tubing or pipe material, one assembly incorporating the smallest size fitting and one assembly incorporating the largest size fitting shall be fabricated. Each of the test assemblies shall be fabricated using five lengths of tubing, two couplings and two elbows similar to that shown in Figure. The assembly shall be filled with water at a pressure of 200 psi (1.45 MPa) and a temperature of 68 ± 6 F (20 ± C). The assembly shall then be subjected to vibration with a forward and

8 and Radiant Heating Systems Page 8 of 12 reverse movement and frequency as specified in Table 4. After the vibration cycling, each assembly shall be hydrostatically pressure tested as specified in Table 5. Condition of acceptance is that no failure shall occur during the tests. 4.7 Vacuum Test: For each tubing or pipe material, two of the smallest size fittings and two of the largest size fittings shall be assembled with two lengths of pipe or tubing. The fittings shall be subjected to a vacuum pressure, temperature and duration as specified in Table 6. The assembly shall be isolated and the vacuum pressure monitored for the duration specified in Table 6. The maximum change in vacuum during the testing shall be as specified in Table 6. The condition of acceptance is that the fitting connections shall not leak. 5.0 LISTING RECOGNITION 5.1 The listing shall limit push-fit fittings to joining the type(s) of materials successfully tested. 5.2 The listing shall prohibit piping installed with push-fit fittings from supporting additional weight to that indicated by the testing covered in Section 4.5 of this criteria. 5. Push-fit fitting listings recognizing applications with PEX shall contain the following condition of use: Use of push-fit fittings is limited to PEX tubing listed as complying with ASTM F 876 and ASTM F877 and labeled to indicate use with fittings complying with ASSE *Uniform Mechanical Code and the Uniform Plumbing Code are copyrighted publications of the International Association of Plumbing and Mechanical Officials, East Philadelphia Street, Ontario, California

9 and Radiant Heating Systems Page 9 of 12 TABLE 1A PRESSURES FOR HYDROSTATIC PRESSURE TEST FOR COPPER TUBE TEST TEMPERATURE TEST PRESSURE EF EC psi MPa For SI: 1 inch = 25.4 mm. NOMINAL SIZE (inches) TABLE 1B PERFORMANCE REQUIREMENTS FOR HYDROSTATIC PRESSURE TEST AT 68EF TEST DURATION (hours) PRESSURE (psi) TEMPERATURE (EF) Minimum Maximum Minimum Maximum / / / / / / / For SI: 1 inch = 25.4 mm, 1 psi = MPa, tec = ( tef - 2) ) 1.8. TABLE 1C PRESSURES FOR HYDROSTATIC PRESSURE TEST FOR CPVC PIPE TEST TEMPERATURE TEST PRESSURE F C psi MPa NOMINAL SIZE (inches) TABLE 2 MINIMUM HYDROSTATIC RUPTURE STRENGTH FOR COPPER TUBE Pressure at 7.4EF (psi) MINIMUM PRESSURE AT DIFFERENT TEMPERATURES Pressure at 2EC (MPa) Pressure at 180EF (psi) Pressure at 82EC (MPa) 1 and smaller / / / / For SI: 1 inch = 25.4 mm.

10 and Radiant Heating Systems Page 10 of 12 TABLE BENDING TEST NOMINAL SIZE MINIMUM LOAD (COPPER TUBING) MINIMUM LOAD (CPVC) (inches) lbf N lbf N / / / / / / / For SI: 1 inch = 25.4 mm. TABLE 4 PERFORMANCE REQUIREMENTS FOR VIBRATION TEST SIZE TEST DURATION FREQUENCY (Hz) CYCLE DISPLACEMENT (inches) (cycles) Minimum Maximum in mm / 8-4 1,000, " " 0.04 For SI: 1 inch = 25.4 mm. TABLE 5 HYDROSTATIC REQUIREMENTS FOR VIBRATION TEST SIZE TEST DURATION PRESSURE TEMPERATURE (inches) (minutes) psi MPa EF EC / " " 6EF (20 " EC) For SI: 1 inch = 25.4 mm. TABLE 6 PERFORMANCE REQUIREMENTS FOR VACUUM TEST AT 68EF SIZE (inches) TESTING FLUID TEST DURATION PRESSURE (in Hg) TEMPERATURE (EF) CHANGE IN VACUUM (in Hg) (hours) Minimum Maximum Minimum Maximum Maximum / 8-4 Water " 1.0 " 0.50 For SI: 1 inch = 25.4 mm, tec = ( tef - 2) ) 1.8.

11 and Radiant Heating Systems Page 11 of 12 FIGURE 1 TEST SETUP FOR HYDROSTATIC PRESSURE TESTS FIGURE 2 TEST SETUP FOR BENDING TEST

12 and Radiant Heating Systems Page 12 of 12 FIGURE TEST SETUP FOR VIBRATION TEST 1