OVERPRESSURE SAFETY ARRANGEMENT FOR MEASURING INSTRUMENT CASINGS

摘要

1489340 Bursting discs TEMPRESS AS 18 Dec 1974 [28 Dec 1973] 60066/73 Heading F1D [Also in Division G1] A pressure relief device for e.g. a pressure gauge comprises a bellows 10 and a blow-out disc 6 fitting into a hole 5 on the rear wall of the instrument, a vent aperture 8 being provided in the disc. The disc may be adhered to the bellows or a separate flanged insert, Fig. 3 (not shown).