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DIF/LPD/B438 TYPE RUPTURE DISC, WITH THE FOLLOWING CHARACTERISTICS: DOUBLE COMPOSITE DISC; NPS 6" DIAMETER; ASME B 16.5 FLANGES; RATING 150; CLASS RF; 316L RUPTURE DISC; PTFE SEALING DIAPHRAGM; 316L CALIBRATION RING. SET PRESSURE: SET PRESSURE: 0.35 BARG ±10% AT 106°C; MAXIMUM ALLOWABLE OPERATING PRESSURE 0.157 BARG ±10% AT 106°C; DISCHARGE AREA 186.17 CM². VACUUM SETTING: SET PRESSURE -0.03 BARG ±20% AT 20°C; MAXIMUM ALLOWABLE OPERATING PRESSURE -0.012 BARG ±20% AT 20°C; DISCHARGE AREA 64.65 CM². DONADONSDD INTERNAL TESTING, WITH PRODUCT CERTIFICATE ISSUED