For those specifically looking for information on used alone, you should instead consult ISO 4126-6 , which handles their selection and installation exclusively.
: Performing risk assessments and selecting appropriate relief systems.
: Traditional spring-loaded or weight-loaded valves. iso 41269 pdf
This standard acts as a comprehensive guide for installing a variety of ultimate safety devices. It assumes (liquid or gas) for the discharged fluid. If your system involves two-phase flow conditions, you must refer to ISO 4126-10 for specific sizing guidance. The standard specifically covers:
: Defining set pressures to ensure the maximum allowable accumulated pressure is never exceeded. For those specifically looking for information on used
: Identifying potential hazards and estimating the probability and severity of overpressure events.
A "safety system" under ISO 4126-9 includes the devices themselves and all piping connections to a safe disposal point. For a system to be compliant, the piping must have adequate capacity, be free from potential blockages, and contain that could bypass the safety function. Critical chapters within the standard include: This standard acts as a comprehensive guide for
This standard is a primary reference for several key roles in the industrial sector:
: Assessing plant compliance with international safety protocols. Procurement and Access
: Assemblies where safety valves and bursting disc devices work in tandem.