Celebrating 27 Years 1999-2026
CMC Technologies supplies FDC high-quality double acting rupture discs, composite flat, dome, and reverse dome types, compliant with key standards such as KS B ISO 4126, KOSHA, ASME Code Section VIII, API RP520, ISO-9001:2008, designed for flange or ferrule fittings, offering precise rupture pressure control and versatile installation options.




KSROD, KSROHD & KSROF Double Acting Rupture Discs
- Composite Flat Double Acting Type for Flange
- Used with installation on Flange without holder
- Composite/Flat structure ruptured by slit processed on Top disc
- It consists of Top disc, Seal disc and Vacuum disc
- Also available in KSROHD: Composite Flat Double Acting Type (same as KSROD but used with installation on FDC standard holder)
- Also available in KSROF: Composite Flat Double Acting Type for Ferrule (same as KSROD but used with installation on Ferrule Connection without holder)

KSRRLD Double Acting Rupture Discs

- Reverse Dome Knife Double Acting Type – Low Pressure
- It is used with installation on FDC standard holder
- Reversal structure ruptured by knife blade attached upper holder while dome is inverted
- It consists of Support disc, Disc seal and Vacuum support
- Possible to set differently rupture pressure to each direction
- It is used for ultra low pressure with minimum 100mmAq of set pressure
KSRRCHD & KSRRCFD Double Acting Rupture Discs
- Composite Dome Flat Seat Double Acting Type
- It is used with installation on FDC standard holder
- Composite/Dome structure ruptured by slit processed on Top disc
- It consists of Top disc, Seal disc and Vacuum disc
- Also available in KSRRCFD: Composite Dome Flat Seat Double Acting Type for Ferrule (same as KSRRCHD but used with installation on Ferrule Connection without holder)

