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AD 2000-Merkblatt W 0 report is a technical document used to certify that a manufacturer has been inspected and recognized as a material manufacturer for pressure-bearing components. It ensures compliance with the German AD 2000 Code European Pressure Equipment Directive (PED) 2014/68/EU Gravity Group of Companies Core Requirements for the Report
: Employment of skilled supervisory and inspection staff is mandatory to ensure technical standards are upheld during production. ad 2000-merkblatt w0 pdf
| Requirement Area | Description | |----------------|-------------| | | Must comply with European harmonized standards (EN) or AD 2000 W-series datasheets. | | Inspection documents | Minimum 3.1 or 3.2 certificate according to EN 10204. | | Traceability | Marking, separate lots, test piece identification. | | Retests | Conditions for repeating mechanical/chemical tests. | | Alternative materials | Procedure for approval if not listed in AD 2000. | AD 2000-Merkblatt W 0 report is a technical
: Must resist corrosion and avoid forming dangerous compounds with the vessel's contents. Testing Standards : Generally follows German DIN standards and Stahl-Eisen-Prüfblätter (SEP) for procedures. Certificates : Typically requires 3.1 or 3.2 inspection certificates according to DIN EN 10204 , depending on the specific material and thickness. 4. How to Use the Technical Code AD 2000 W0 - Certipedia | | Inspection documents | Minimum 3
: To ensure materials attain required mechanical properties (like strength and toughness) on the finished part and resist corrosion.
The "W" series (Werkstoffe/Materials) is just one part of the broader AD 2000 Code:
| | Key Requirements | |--------------------------|-------------------------------------------------------------------------------------| | Scope | Applies to pipes, ducts, and cables passing through unheated areas (e.g., within insulation layers, above ceilings, under slabs). | | Heat Loss Calculation | Specifies formulas to determine energy losses based on: - Pipe length and diameter - Insulation material (e.g., mineral wool, PUR) - Temperature difference between inside and outside. | | Insulation Standards | Minimum insulation thickness and thermal conductivity (λ-value) for different pipe types. For example, DN50 pipes may require ≥ 40 mm insulation with λ ≤ 0.035 W/(m·K). | | Installation Tips | Recommends avoiding thermal bridges (e.g., gaps in insulation) and securing insulation around joints. |