Rupture discs: technical guide in Spanish

A rupture disc is a non-reclosing pressure relief device: a calibrated membrane that bursts at a defined pressure and temperature to protect vessels, piping and valves against overpressure. On this portal we explain, in engineering language and without detours, how they work, what types exist, how they are selected, which standards apply and how they are installed and maintained.

Technical guides

  1. What a rupture disc is and how it works
  2. Types: forward-acting, reverse-acting, composite and graphite
  3. How to select a disc: pressure, tolerance, temperature and material
  4. Rupture disc vs pressure relief valve (and combined use)
  5. Standards: ASME VIII and XIII, ISO 4126, API 520 and NOM-020-STPS
  6. Installation and types of disc holders
  7. Maintenance and replacement interval
  8. Materials: 316L, nickel alloys, tantalum and graphite
  9. Relief area calculation per API 520
  10. Sanitary discs for food, beverage and pharmaceutical
  11. Common failures and how to diagnose them
  12. Glossary of terms
  13. Frequently asked questions

Content prepared by the P&V Control Devices technical team. If you already have your application data and need a quote, visit pvcontrol.com.mx.

Technical guides

Common rupture disc failures and how to diagnose them

Common rupture disc failures and how to diagnose them

Short answer: rupture disc failures are of two types: opening early (burst...

Sanitary rupture discs for food, beverage and pharmaceutical applications

Sanitary rupture discs for food, beverage and pharmaceutical

Short answer: a sanitary rupture disc is a disc designed for food, bever...

Relief area calculation for a rupture disc according to API 520

Rupture disc relief area calculation per API 520

Short answer: the relief area of a rupture disc is calculated with the API 520 equations ...

Materials for rupture discs: how to choose the right one

Rupture disc materials: how to choose the right one

Short answer: the material of a rupture disc is chosen on three criteria: that it resists corr...

Frequently asked questions about rupture discs

Frequently asked questions about rupture discs

Short answer: here we answer in two or three sentences the most common questions about rupture di...

Rupture disc glossary: technical terms explained

Rupture disc glossary: technical terms explained

Short answer: this glossary gathers, in alphabetical order, the technical terms that appear in...

Rupture disc maintenance and replacement interval

Rupture disc maintenance and replacement interval

Short answer: a rupture disc is not repaired or recalibrated: it is inspected and replaced. The...

Rupture disc installation and types of disc holders

Rupture disc installation and disc holder types

Short answer: a rupture disc is always installed in the disc holder for which it was designed,...

Rupture disc standards: ASME VIII, ISO 4126 and API 520

Rupture disc standards: ASME VIII, ISO 4126 and API 520

Short answer: rupture discs are designed, tested, and certified primarily under the Cod...

Rupture disc vs pressure relief valve: differences and combined use

Rupture disc vs pressure relief valve: differences and combined use

Short answer: a rupture disc opens instantly, does not leak, and has no moving parts,...

How to select a rupture disc step by step

How to select a rupture disc step by step

Short answer: to select a rupture disc, start from the maximum allowable pressure of the...

Types of rupture discs: forward-acting, reverse-acting, composite and graphite

Types of rupture discs: forward-acting, reverse-acting, composite and graphite

Short answer: rupture discs are classified by the way they work under pressure. The...

What a rupture disc is: definition, operation and uses

What is a rupture disc: definition, operation and uses

Short answer: a rupture disc is a calibrated metal (or graphite) membrane designed to burst...

Rupture disc models: descriptive datasheets

STD rupture disc for screw-type and disposable disc holders

STD rupture disc for screw-type and disposable disc holders

In short: It is the variant of the STD disc (solid-metal domed, tension-loaded) prepared for mounting...

Rupture Discs overpressure flat seat screw supports disposable disc holders

STD rupture disc

STD rupture disc

In short: The STD is the conventional solid-metal, pre-bulged rupture disc, which ...

Rupture Discs process safety overpressure vacuum support solid metal instantaneous relief flow tag LaMOT

MICRO X™ rupture disc

MICRO X™ rupture disc

In short: The MICRO X™ is a forward-acting (tension-loaded), flat-seat rupture disc with scoring...

Rupture Discs flat seat four petals clean processes corrosion resistance UNISERT

ICON™ rupture disc

ICON™ rupture disc

In short: The ICON™ is a forward-acting (tension-loaded) rupture disc with cross scores and non-frag...

Rupture Discs safe transport ISO tank tank car tank truck non-fragmenting pressure relief valve

GRAFSERT rupture disc

GRAFSERT rupture disc

In short: The GRAFSERT is a graphite rupture disc: a solid sheet impregnated with resin...

Rupture Discs low pressure industrial safety corrosive processes graphite reduced maintenance aggressive environments

ENVIRO-SEAL rupture disc

ENVIRO-SEAL rupture disc

In short: The ENVIRO-SEAL is a flat-seat composite rupture disc that, rather than protecting ...

Rupture Discs process safety low pressure environmental seal corrosion barrier vent isolation standard flanges

RCS® rupture disc

RCS® rupture disc

In short: The RCS® is a reverse-acting rupture disc with cross cuts and indentation...

Rupture Discs reverse-acting overpressure protection low pressure chemical resistance corrosive processes cross scores

LOTRX® rupture disc

LOTRX® rupture disc

In short: The LOTRX® is a reverse-acting metal rupture disc with a semicircular score...

Rupture Discs process safety chemical industry reverse-acting low pressure full vacuum emissions control

Share:

Follow us

Contact us

By submitting this form you accept the processing of your data in accordance with our Privacy Notice.

© 2026 P&V Control Devices. All rights reserved.