
Rupture Disc
A non-mechanical safety device to release overpressure exceeding the limit pressure in the pressure system.





Reverse Dome Shear Type for VCR
Using the KSRRK model for fitting connections
Shear-actuated structure that ruptures by a knife ring attached to the rupture disc, as the dome shape is inverted
Vacuum support required |
No |
Spark |
No |
Fragment |
No |
Max. operating ratio |
90 % |
Available service phase |
Gas or vapor : Yes |
Liquid : Yes |
4~50kg/cm² [1/4"~1"(8A~25A)]
Other specifications upon request




Reverse Dome Shear Type for PLUG
Use KSRRK model for Fitting Connection
Shear-type structure where the dome shape reverses and ruptures by the Knife Ring attached to the rupture disk
Vacuum support required |
No |
Spark |
No |
Fragment |
No |
Max. operating ratio |
90 % |
Available service phase |
Gas or vapor : Yes |
Liquid : Yes |
4~50kg/cm² [1/4"~2"(8A~50A)]
Other specifications upon request




Reverse Dome Shear Type for UNION
Use KSRRK model for Fitting Connection
Shear type structure where the dome shape is reversed and ruptured by the Knife Ring attached to the rupture disc
Vacuum support required |
No |
Spark |
No |
Fragment |
No |
Max. operating ratio |
90 % |
Available service phase |
Gas or vapor : Yes |
Liquid : Yes |
4~50kg/cm² [1/4"~2"(8A~50A)]
Other specifications upon request




Reverse Dome Scored type
Structure that ruptures along precisely machined scored lines as the dome reverses
Vacuum support required |
No |
Spark |
No |
Fragment |
No |
Max. operating ratio |
90 % |
Available service phase |
Gas or vapor : Yes |
Liquid : Yes |
10.5~355kg/cm² [1/4"~1"(8A~25A)]
Other specifications available upon request