Accessories for rupture disc systems and pressure safety
Accessories designed to support installation, monitoring and performance of rupture disc pressure safety systems.
DonadonSDD excess flow valves have been designed to prevent pressure accumulation in the space between the rupture disk discharge and the second safety device.
Since rupture discs are differential pressure devices, avoiding pressure accumulation is essential to ensure correct disc opening at the desired bursting point. Excess flow valves are usually used when rupture discs are used together with a safety valve or when installed on multiple rupture discs in series. Excess flow valves close when exposed to the rupture disc discharge flow.
DonadonSDD excess flow valves are available in ¼” or ½” versions and can be supplied with T connectors, nipples and pressure gauges upon request. All Rupture Discs accessories are made of stainless steel.
Frequently Asked Questions
Depending on disc’s type, DonadonSDD can supply discs from 1/8” (3mm) up to 40” (1000mm) in diameter.
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.
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.
CERTIFICATIONS
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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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