COMPLIANCE INFO 2018 - Laserfiche WebLink

Home Browse Search

JOINT CURE Industrial Heat Gun An industrial heat gun and heavy duty aluminum foil may also be used to create a mini oven around the secondary contain- ment fitting. Wrap foil around the fitting and cinch the ends down. Cut a 10" to 12" section of 2" or 3" pipe and place in- side of the foil. Place heat gun in the end of the pipe. Do not place heat gun any closer than 12" from the fitting. Cure time is approximately 15 minutes. For a proper cure, maintain the temperature between 250°F and 400`F. TESTING RECOMMENDATIONS FOR SECONDARY CONTAINMENT PIPING Secondary containment piping, 3"-6" (75 mm and 100 mm) diameter sizes, can be pressure tested by installing an in-line tee with a pressure gauge and a nipple in the 3/4" threaded outlet of a termination fitting. if the test piping is to be installed temporarily, use care not to over tighten when installing the steel pipe threads. Fiberglass threads may be damaged when removing the steel threads if over tightened. Use soft -set, non- metallic thread dope only. NOV Fiber Glass Systems recommends testing 3", 4", and 6" (75, 100, and 150 mm) secondary containment piping systems with air at pressures not to exceed 10 psig (0.069 MPa). The most convenient place to introduce air for the containment piping pressure test is at the threaded outlet located on the termination fitting near the underground storage tank. The system should stay pressurized until the installation is completed to monitor for possible damage to the containment piping system during additional construction. The low pressure and low volume of the secondary containment piping system makes air testing a relatively safe procedure if normal safety precautions are followed. Refer to air safety precautions on pages 10-11. TEST PROCEDURES FOR "IN SERVICE" SECONDARY CONTAINMENT UL PIPING SYSTEMS Secondary Containment piping systems can be tested after the line has been installed and in operation for a period of time. All systems mustbe shut off before testing. It Is recommended that where possible, the air input valve be. in a different location than the pressure gauge. Please read and understand all safety instructions and oonsiderations in the Installation Manual No. 92160 before testing. Closed System Test 3" and 4" secondary containment closed systems with air at pressures not to exceed 10 psig. Pressure should be left on the system for a minimum of one hour. The test pressure should not exceed the pressure rating of any component in the piping system. MAW Open System (Gravity Drain) Test 3"-6" secondary containment open systems with air to the equivalent static head test pressure listed in the table below. The pressure should be left on the system for a minimum of one hour. The system must be temporarily sealed during testing. Do not exceed the pressure rating of any component in the piping system. Test Pressure for Open System Feet of head' Test Pressure (psig) 2 1.0 4 2.0 6 2.5 8 3.0 10 4.0 12 5.0 Highest point in system minus the lowest point in system. These te8t procedures are designed specifically for the NOV Fiber Glass Systems' piping system. The company is not responsible for any damage to "other" products in the systems such as rubber boots, hoses, etc. Please contact the manufacturer of other products for their recommended maximum test pressure and time. Vaouum or Inert Gas Test Prooedures Testing with vacuum and/or pressurized inert gases have been successfully used with our piping systems. Although helium testing in a closed atmosphere and at measured levels is useful, testing in the field with helium has shown inconsistencies when trying to identify leak location. 21