EN 12573-4:2000
(Main)Welded static non-pressurised thermoplastic tanks - Part 4: Design and calculation of flanged joints
Welded static non-pressurised thermoplastic tanks - Part 4: Design and calculation of flanged joints
This part of this standard specifies the design and calculation of circular flanged joints, fabricated in the following thermoplastics: Polyethylene (PE), Polypropylene (PP), Poly (vinyl chloride) (PVC), Ply (vinylidene fluoride) (PVDF)
Geschweißte orstfeste drucklose Behälter (Tanks) aus Thermoplasten - Teil 4: Konstruktion und Berechnung von Flanschverbindungen
Dieser Teil der Europäischen Norm legt die Konstruktion und Berechnung von runden Flanschverbindungen fest, die aus den folgenden Thermoplasten gefertigt werden: Polyethylen (PE), Polypropylen (PP), Polyvinylchlorid (PVC), Polyvinylidenfluorid (PVDF).
Cuves statiques soudées en matières thermoplastiques sans pression - Partie 4: Conception et calculs des joints à brides
La présente partie de cette norme européenne spécifie la conception et le calcul des joints circulaires à brides, fabriqués à l'aide des matières thermoplastiques suivantes: polyéthylène (PE), polypropylène (PP), polychlorure de vinyle (PVC), polyfluorure de vinylidène (PVDF).
Welded static non-pressurised thermoplastic tanks - Part 4: Design and calculation of flanged joints
General Information
Overview
EN 12573-4:2000 (CEN) is the part of the EN 12573 series that specifies the design and calculation of circular flanged joints for welded, static, non‑pressurised thermoplastic tanks. It applies to flanged joints fabricated in common thermoplastics: polyethylene (PE), polypropylene (PP), poly(vinyl chloride) (PVC) and poly(vinylidene fluoride) (PVDF). The standard focuses on ensuring safe, durable and leak‑resistant flange connections for stationary, non‑pressurised storage tanks.
Key topics
Typical technical topics and requirements you can expect in this part include:
- Scope and material applicability - coverage for PE, PP, PVC and PVDF flanged joints in welded non‑pressurised tanks.
- Flange geometry and dimensional considerations - guidance on circular flange profiles and interfaces compatible with thermoplastic construction.
- Design and calculation principles - mechanical load and stress assessment methods appropriate for non‑pressurised, static conditions.
- Sealing and gasket interface - considerations for achieving reliable sealing between thermoplastic flange faces and mating components.
- Bolting and fastener requirements - selection and arrangement of fasteners to meet mechanical loads without overstressing thermoplastic components.
- Thermal and material behaviour - allowance for thermal expansion, creep and long‑term material properties of PE, PP, PVC and PVDF.
- Fabrication and joint detailing - welding and assembly considerations specific to thermoplastic tank construction.
- Inspection and verification - recommended checks to confirm flange integrity after fabrication and assembly.
(Note: the standard itself should be consulted for exact formulas, limits and procedural requirements.)
Applications
EN 12573-4:2000 is intended for professionals involved in the design, manufacture and use of welded thermoplastic tanks where circular flanged joints are required:
- Tank designers and structural engineers calculating flange loads and detailing joints.
- Fabricators and welders implementing flange designs in PE, PP, PVC or PVDF.
- Plant engineers and asset owners specifying compliant storage tanks for chemical, water treatment or process applications.
- Inspectors and certification bodies assessing flange integrity and conformance for non‑pressurised tanks.
Related standards
- Part of the EN 12573 series on welded static thermoplastic tanks (other parts address general tank design, fabrication and testing).
- Users should cross‑reference material standards and fastener/gasket standards relevant to PE, PP, PVC and PVDF when specifying joint components.
EN 12573-4:2000 is a practical reference for ensuring safe, durable flanged joints in thermoplastic tank systems and should be used together with the other parts of the EN 12573 series and applicable material/product standards.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Welded static non-pressurised thermoplastic tanks - Part 4: Design and calculation of flanged jointsGeschweißte orstfeste drucklose Behälter (Tanks) aus Thermoplasten - Teil 4: Konstruktion und Berechnung von FlanschverbindungenCuves statiques soudées en matieres thermoplastiques sans pression - Partie 4: Conception et calculs des joints a bridesWelded static non-pressurised thermoplastic tanks - Part 4: Design and calculation of flanged joints23.040.60Prirobnice, oglavki in spojni elem
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Frequently Asked Questions
EN 12573-4:2000 is a standard published by the European Committee for Standardization (CEN). Its full title is "Welded static non-pressurised thermoplastic tanks - Part 4: Design and calculation of flanged joints". This standard covers: This part of this standard specifies the design and calculation of circular flanged joints, fabricated in the following thermoplastics: Polyethylene (PE), Polypropylene (PP), Poly (vinyl chloride) (PVC), Ply (vinylidene fluoride) (PVDF)
This part of this standard specifies the design and calculation of circular flanged joints, fabricated in the following thermoplastics: Polyethylene (PE), Polypropylene (PP), Poly (vinyl chloride) (PVC), Ply (vinylidene fluoride) (PVDF)
EN 12573-4:2000 is classified under the following ICS (International Classification for Standards) categories: 23.020.10 - Stationary containers and tanks; 23.040.60 - Flanges, couplings and joints. The ICS classification helps identify the subject area and facilitates finding related standards.
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