Forward Acting (Tension Loaded) Bursting Discs – Rupture Discs

FDC – Forward Acting (Tension Loaded) Bursting Discs – Rupture Discs

These rupture discs are produced by FDC, who have over 25 years of experience in this highly competitive international market. Their products can be specified to product standards including KS B ISO 4126, KOSHA, ASME Code Section VIII, API RP520, and the ISO-9001:2008 quality system.

KSRSF

Design:
· Forward Dome Scored Type
· It is used with installation on FDC standard holder
· Carved structure with Scored Damage processed precisely ruptured by tension

KSRST

Design:
· Forward Dome Tension Flat Seat Type
· It is used with installation on FDC standard holder
· Structure with disc ruptured by tension pressure

KSRCT

Design:
· Forward Dome Tension Sloped Seat Type
· It is used with installation on FDC standard holder
· Structure that the Disc is ruptured by tension owing to the pressure, Sloped Type Disc Seat structure
· It consists of Top disc, Support disc and Guide ring

MARSTON – Forward Acting (Tension Loaded) Bursting Discs – Rupture Discs

The simplest of all discs, usually a single domed metallic foil which will probably fragment upon disc rupture. This pre-bulged rupture disc has a flat seated design and is non- torque sensitive. It can be used on liquid or gas service and can be operated reliably in static pressure operations to 70 of it minimum burst pressure. It can resist vacuum for certain burst pressures or resist full vacuum or back pressure with the assistance of a vacuum support.

A single metallic foil which has grooved lines of weakness and is designed to be non-fragmenting.
It will normally withstand vacuum conditions without the aid of a vacuum support. It is also known as a scored rupture disc. The disc can be used in liquid or gas service and opens cleanly along the scored lines. This flat seated design is non torque sensitive. It can be operated to 80% of its minimum burst pressure in static conditions.

A forward acting disc which has two membranes. The CS disc is named afer its construction – Composite Slotted.
A load-bearing slotted metallic outer membrane and a weaker, usually fluoropolymer, seal membrane giving a non-fragmenting design. The burst pressure is controlled by the closeness of the slits in the outer membrane and the combination with the seal’s thickness. This disc is widely used for lower bursting pressures. It is flat seated and non torque sensitive. It can be operated reliably to 80% of its minimum burst pressure in static conditions,