ASME A112.18.6-2009 pdf download

ASME A112.18.6-2009 pdf download.Flexible water connectors.
4.3.8 Push-fit fittings Connections achieved by push-fit fittings shall comply with ASSE 1 061 and the applicable requirements of this Standard. 4.3.9 Alternate connections Alternate connections shall meet the performance requirements of this Standard. 4.4 Water heater flexible connectors Metallic water heater flexible connectors shall be made of (a) 300 series stainless steel with a minimum wall thickness of 0.25 mm (0.01 0 in); or (b) copper with a minimum wall thickness of 0.7 mm (0.026 in). 4.5 Working pressure Flexible connectors shall function at (a) supply pressures between 1 40 and 860 kPa (20 and 1 25 psi); and (b) intermittent impulse pressures not exceeding 1 240 kPa (1 80 psi). 4.6 Working temperature Flexible connectors shall (a) function at supply temperatures between 4 and 71 °C (40 and 1 60°F); and (b) withstand water at 82 °C (1 80°F) for 0.5 h without failure of the pressure envelope. 5 Performance requirements and test methods 5.1 General 5.1.1 A specimen representing each combination of nominal diameter, connection type, and material shall be tested. 5.1.2 Separate specimens shall be used for each test specified in this Standard. 5.2 Intermittent impulse pressure test 5.2.1 Performance Flexible connectors shall withstand intermittent impulse pressures not exceeding 1 280 kPa (1 85 psi) when tested in accordance with Clause 5.2.2. In addition, on completion of such testing, the flexible connectors shall not leak when tested in accordance with the blocked outlet procedure specified in Clause 5.3.1 .3 of ASME A1 1 2.1 8.1 /CAN/CSA-B1 25.1 . 5.2.2 Procedure The intermittent impulse pressure test shall be conducted as follows: (a) Supply water at 82 ± 3 °C (1 80 ± 5°F) to the specimen in such a manner that the flowing pressure upstream of the specimen is a maximum of 51 7 kPa (75 psi) and the flow rate is 7.6 ± 1 .9 L/min (2.0 ± 0.5 gpm). (b) For each cycle, stop the flow and increase the pressure from 51 7 kPa (75 psi) to 1 240 ± 35 kPa (1 80 ± 5 psi). (c) Cycle the specimen for 1 00 000 cycles at a minimum of 7 cycles/min at the following rates: (i) 3 ± 1 s at 51 7 kPa (75 psi) maximum; and (ii) 3 ± 1 s at 1 240 ± 35 kPa (1 80 ± 5 psi) maximum.
5.3 Burst pressure test 5.3.1 Performance Flexible connectors shall not leak when subjected to the hydrostatic burst pressure test specified in Clause 5.3.2. 5.3.2 Procedure The burst pressure test shall be conducted as follows: (a) Fill the specimen with water. (b) Submerge the specimen in water at 82 ± 3 °C (1 80 ± 5°F) for 30 min. Alternatively, if the medium is air, condition the specimen for 60 min at ambient laboratory conditions while flowing water at 82 ± 3 °C (1 80 ± 5°F) through it. (c) Pressurize the specimen at 1 724 ± 35 kPa (250 ± 5 psi). (d) Hold the specimen at the temperature and pressure specified in Items (b) and (c) for 30 min. (e) Remove the specimen from the water, if applicable. (f) Inspect the specimen for leaks while it is still being subjected to the test pressure. 5.4 Pressure drop test 5.4.1 Performance The pressure drop across the specimen shall not exceed the applicable value specified in Table 1 when it is tested in accordance with Clause 5.4.3. This requirement shall not apply to flexible connectors that are an integral part of a faucet that complies with ASME A1 1 2.8.1 /CAN/CSA-B1 25.1 . 5.4.2 Set-up The test assembly shall be set up in accordance with Part 4 of ANSI/ISA-75.02. The test specimen shall consist of a flexible water connector bent 1 80° around a mandrel of the applicable size specified in Table 1 . 5.4.3 Procedure The pressure drop test shall be conducted as follows: (a) Supply water at the applicable flow rate specified in Table 1 for at least 30 s. (b) At the end of the 30 s, measure the pressure drop across the specimen. 5.5 Torque test Flexible connectors shall not leak or otherwise fail when tested in accordance with Clause 5.3.4.2 of ASME A1 1 2.1 8.1 /CAN/CSA-B1 25.1 . 6 Markings 6.1 Except as specified in Clause 6.2, flexible connectors shall be permanently marked with the manufacturer’s recognized name, trademark, or other mark. 6.2 Flexible connectors that are not permanently marked with the manufacturer’s recognized name, trademark, or other mark shall be permanently marked with the recognized name, trademark, or other mark of the customer for whom the connector was manufactured.