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These pressure relief devises are designed to protect plastic extruders for overpressure. A soldered or welded rupture disc is placed at on the threaded hollow bolt to fit flush in the extruder barrel. Mounting these flush in the barrel prevents plastic buildup and hardening which would deem the rupture disc ineffective.
Standard rupture disks are raited at 750 deg F using a standard inconel diaphragm. Standard threads are 1/2"-20UNF, 5/8"-11NC, 3/4"-16NC (+/- 5% accuracy). Options include high-temperature (1000 deg F) and hastelloy diaphragm, custom tip dimensions, 1"-20UNF, M18X1.5, and many more options. Contact us for details.