Graphite Rupture Disks

SAF-T-GRAF System Introduction Saf-T-Graf® graphite Rupture Disks are manufactured from a single piece of high quality graphite that is impregnated with an environmentally safe high temperature resin to provide excellent leak performance. All Saf-T-Graf disks may be applied in gas, liquid or two phase flow. At the heart of the Saf-T-Graf product is its Monobloc construction; the rupture disk and holder are integral, designed for simple installation between companion flanges with no potential for leakage between separate disk and holder components. Depending upon the application, different models...

Model MBTM , MBVTM, AMBTM, AMBVTM Monobloc disks fit most applications where graphite disks are needed. When using a monobloc disk in application: • Vacuum supports are needed for disks rated below 22 psig (1.52 bar) and where a vacuum condition exists. Model MBV or AMBV Vacuum supports are not required on 0.5” and 0.75” (15mm and 20mm) monobloc disks • Temperature ranges -100ºF to 400ºF (-73ºC to 205ºC). MBTM, MBVTM, AMBTM, AMBVTM Specifications Nominal Size Sizes 0.5” to 24” (15mm to 600 mm)with temperature range to 400ºF (205º C). Burst Ratings ANSI Flange Rating FSMTM, IMBTM, AIMBTM, IMBLTM,...

Venting Capacities Venting capacities are expressed below in standard cubic feet per minute of air x 1000 at standard conditions. Adjustments must be made when utilizing vacuum supports. Vacuum Example: An 8" Monobloc disk (a 10 psig utilizing a bar type of vacuum support, reduces the original capacity by a factor of Venting capacities are based upon ASME VIII UG 131, using a 0.62 Disk Diameter (in/mm] coefficient of discharge*, ratio of specific heats of 1.4 and a "Z" (compressibility) of 1.0 which simulates an entry into a vent system from a process vessel. Below 15 psig the flow becomes subcritical...