This reverse-acting rupture disc is ideal for primary and secondary system relief protection or, when used to isolate a safety relief valve, provides an effective means of fugitive emission control. Additional system-protection applications include installation in transfer piping, chemical reactors, pressure vessels, storage vessels and heat exchangers.

The STAR X incorporates a handling ring to reduce torque sensitivity. As with all our other reverse-acting rupture discs, every STAR X rupture disc is proof pressure-tested to 90% prior to shipment. The STAR X is compatible with the BDI alarm system.

The STAR X rupture disc features:

A safety ratio of 1.5 or less – designed so a damaged rupture disc will provide pressure relief at or less than 1.5 times the rated burst pressure of the rupture disc

Operational capacity in pressure-to-full-vacuum cycling without additional vacuum support

A standard zero manufacturing range and an optional -5% or -10% manufacturing range

A permanent flow-direction tag for visual verification of proper orientation

Our precision failure-initiating indent, to:

Weaken thicker materials to achieve low reversal pressures: the use of thicker materials also provides sturdier and more corrosion-resistant discs

Ensure thicker material properly collapses and fully opens along the score line

Help ensure the rupture disc dome will not fragment

Nominal Size Range: 1″ – 6″ (25 mm – 150 mm)

Burst Pressure Range: 13 psig – 140 psig (0,896 barg – 9,65 barg)

Maximum Recommended Operating Ratio: 90% of the rupture disc’s rated (stamped) burst pressure

Seating Configuration: Flat seat

Service: Liquid or Gas

BDI Alarm System Compatible?: Yes

ASME Code Symbol Stamp Available?: Yes

Materials not indicated or shown may be available by special design. Contact us for more information.