Rapid Shutdown of Failed Pipeline Systems and Limiting of Pressure to Prevent Pipeline Failure Due to Overpressure, Part 2Department of Transportation, Office of Pipeline Safety, 1974 - Pipelines |
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101 LEAKAGE SURVEY 71 LOWER LIMIT ACTUATOR alarm ARNOR automatic valves block valves CALL FROM OBSERVER CHANGE OF PRESSURE CLAMPS close Company components cost describe Distribution Systems TABLE EXCESS FLOW DEVICES false closures February 9 FIELD RESPONSES DEVIATION FLAME IONIZATION GAS flow rate flowmeters Gas Distribution Systems Gas Transmission Lines HIGH PRESSURE SHUTDOWN inch installed IONIZATION GAS DETECTOR leak detection system LIMIT RESPONSE QUALIFIER line break control Liquid Pipelines TABLE LOWER LIMIT RESPONSE mainline valves MANUAL Manufacturer MAXIMUM MINIMUM MEAN meter methods miles MINIMUM MEAN STANDARD MLIST MRI/Survey Number of failures PLUG PNEUMATIC psi per minute psig pumping stations QUALIFIER UPPER LIMIT QUESTION ANSWER questionnaire responses rapid shutdown RATE OF CHANGE remotely controlled valves reported RESPONSE QUALIFIER UPPER RESPONSES RESPONSES QUESTIONNAIRES rupture sectionalizing valves service lines setpoint shutoff STANDARD DEVIATION STOPPERS surge TAHLE TELEMETERED TOTAL RESPONSES TRANSDUCERS Transmission Lines TABLE trunkline UNDEFINED CODE UPPER LIMIT RESPONSE