Optic fibre rupture indicators

Managing instances of excessive pressure in industrial plants is a basic element of safety both for structures and technicians. Rupture discs are, as of today, the perfect tools to guarantee complete safety.

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The rupture indicator for ultra-low pressures

In all those cases where it is necessary to signal the breakage of a rupture disc designed for ultra-low pressures, a significant difficulty often arises; the extremely reduced thicknesses and sizes of such discs make it impractical, or at times even impossible, to install any traditional kind of sensor, either for simple lack of space or because the material involved in a breakage would be of such small quantity that the signal would not activate.

To solve this issue, DonadonSDD has created a market exclusive with its unique optic fibre rupture indicators, specifically developed for the ultra-low pressures which we are specialists of. Optic fibre in these sensors makes it possible to signal breakage even with disc models designed for extremely low pressures, and thus extremely small and thin in construction – at any temperature, even the highest.

Products

Frequently Asked Questions

What size discs are available?

Depending on disc’s type, DonadonSDD can supply discs from 1/8” (3mm) up to 40” (1000mm) in diameter.

What information is needed in order to be able to specify the correct disc?

You can download here the RUPTURE DISC FORM that will guide You to collect all the data required, which can be also summarized as below specified:

required burst pressure & burst temperature
nominal size, flange rating & face finishing
disc and holder material
vacuum resistance (if requested)
Pressure Safety Valve protection (if requested)

There are several other factors as well, so DonadonSDD specialists are always at disposal to specify the correct disc for any application. Each and every rupture disc we design and deliver to our customers is scrupulously custom-built, so as to match the industrial plant’s specific and unique needs.

What different types of discs are available?

Main Families: Forward / Reverse / Sanitary
The categories of rupture & bursting disks which we manufacture for our customers, are:

NS NANOSCORED RUPTURE DISCS – a unique, top-performing product.
SANITARY RUPTURE DISCS – for pharmaceutical, food and biotech industries.
FORWARD ACTING – the traditional, time-tested solution.
REVERSE ACTING – sporting better resistance to different operating pressures.
ULTRA LOW PRESSURE RUPTURE DISCS – sensitive to even the lightest pressures.
DOUBLE WAY – protects both ways: against pressure and vacuum.
GRAPHITE RUPTURE DISCS – for aggressive fluids.
SEALED UNIT – simple and quick to install.

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Safety devices such as rupture discs and explosion venting panels are essential for modern, eﬃcient industrial plants.

Let’s ﬁnd out together which ones are ideal for you!
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