1997-07-21_GENERAL DOCUMENTS - M1977493

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4,,-17/21/1997 08: 45 3035724444 CROW COMPANY PAGE 02 II I I II I II I II IIII III chgym 999 %.-- 0.. Plexco Application Note No.8 QM system Testing Pressure Testing Considerations WARNING:Pips Res"int The pipe system section under test and any closur es in the test Guidelines for All Test Methods section should be restrained against sudden uncontrolled movement from catastrophic Leah testing may be conducted if specified by the fail Test equipment should be examined responsible Project Engineer or Owner. before pressure is app/kd to Insure that it Is tightly connected All low MsswvfUUng Imes Joints may be exposed to inspect for leakage. and other items not subject to the test pressure Testing may be conducted on the full system,or in should be disconnected or Isolated sections. The test section size is determined by WARNING: Personal Protection. Tate suitable test equipment capability. If the pressurizing or precautions to eliminate hazards to personnel pumping equipment is too small,it may not be near lines being tested Keep personnel a safe possible to complete the test within allowable distance away from the test section during testing time limits. If so,higher Capacity test testing, equipment,or a smaller test section may be WARNING: Test Equipment should be nece'ssary' examined before pressure Is applied to Insure Expansion Joints and expansion compensators that It is tightly connected AU low pressure should be temporarily restrained,or isolated,or flUing Ems and other items not subject to the test removed during the pressure test. pressure should be disconnected or Isolated The temperature of the test medium and the pipe test section should be the same,and if possible, References should be less than 100717.(38'C). Before applying test pressure,allow flare for the test The following reference publications provide medium and the pipe test section to equalize. At pressure testing information:ASME B31.1 Power temperatures above 100T(38°C),test pressure PiWM Section 137,Pressure Tests,and PPI must be reduced Contact Plexco/Spirolite for TR-31 Underground Installation of Polyolefin technical assistance with elevated temperature ,Section 7,System Testing. press testing. Plexco/Spirolite Technical Personnel should be Heat fusion Joints must be completely cooled consulted before using pressure testing procedures before pressure testing. See Plexco Bulletins 101 other than those presented here. Other pressure and 108 for fusion joining procedures, testing procedures may or may not be applicable depending upon piping products and/or piping CAUTION: Pipe system pressure testing Is applications. perfornned to discover unwpuptaWe faults in a piping system. Pressure testing may cause such faults to tan by leaking or rupturing. This may result In catastro"hic(allure. Piping system rupture may result in the sudden, forcible,uncontrolled movement of"an piping,or components,or parts of components.