Screw Type – ST Series Holder:

1. Designed for use with PBST, FPB, DST or FD Series Rupture Disks
2. Available in Standard 30° angle or flat seat designs
3. Ideal for application pressures up to 15,000 psig
4. Standard materials of construction: 300 series stainless steel.
5. Standard inlet connections: 1/4″ MNPT or 1/2″ MNPT
6. Standard outlet connections: muffled*, free (open to atmosphere) or threaded
7. Standard unit consists of 3 components: Inlet, Hold-down Ring and Outlet. The rupture disk mounts between the inlet and the hold-down ring. The outlet nut provides compression required to seal the disk
8. ASME UD marking is available upon request