What is BS EN 15776 - Requirements for unfired pressure vessels about?
BS EN 15776 specifies requirements for the design, material, manufacturing, and testing of pressure vessels and pressure vessel parts made from materials for which details are specified from the following material standards for specific grades which meet the criterion of elongation after fracture less than or equal to 15 %:
EN 1561:2011, Founding — Grey cast irons
EN 1563:2011, Founding — Spheroidal graphite cast irons
EN 13835:2012, Founding — Austenitic cast irons
The allowed content of the vessel or pressure part is a fluid of group 2 only, according to Directive 97/23/EC. Pressure vessels usually hold materials at a high pressure they can be dangerous if not properly manufactured and tested. Inspection on a regular basis is a critical part of the maintenance process for pressure vessels, which helps in revealing potential problems before they develop further.
Who is BS EN 15776 - Requirements for unfired pressure vessels for?
BS EN 15776 on requirements for unfired pressure vessels is useful for:
- Machinery (pressurized equipment)
- The automation industry
- Electricity
- Fire protection
- The petrochemical industry
- The food processing industry
Why should you use BS EN 15776 - Requirements for unfired pressure vessels?
BS EN 15776 is a stand-alone document and may be used for pressure equipment with certain restrictions and limitations. For the design and fabrication of cast iron pressure equipment standards with higher elongations and ductility, see EN 13445-6:2014. Attention is drawn to the references to EN 13445-6:2014 for design and fabrication according to specific grades of material standards EN 1563:2011 and EN 13835:2012 which are found in some clauses of BS EN 15776. Requirements for the design, material, manufacturing, and testing of pressure vessels and pressure vessel parts made from ferritic or austenitic spheroidal graphite cast iron grades with an elongation after fracture higher than 15 % are given in EN 13445-6:2014.
Cast iron with elongation after fracture equal or less than 15 % may only be used for pressure equipment when operational and technical advantages are dictating its use instead of the cast iron grades are given in EN 13445-6:2014 with elongation after fracture higher than 15 %. By acting as a heat exchanger, unfired pressure vessels aid in the prevention of corrosion. The occurrence of corrosion owing to excessively high temperatures and other associated conditions can be avoided with these vessels.