Valve CE certification operation process

Valve CE certification operation process

Some standards of valve CE certification:

1. Design and manufacture standards, such as EN 13709 for globe valves

2. Length standard: EN 558

3. Flange standard: EN 1092

4. Inspection and pressure test standard: EN 12266

5. Welding end standard: EN 12627

Conditions for valve manufacturers to reach the PED directive:

When valve manufacturers apply for EU certification, they often encounter the EU's PED directive. To pass PED certification, companies have to do a lot of work.

1. Determine the compliance review mode.

2. Material control. EU standards require that the selected materials must ensure that the valve is safe and reliable within the expected life, and the mechanical properties and chemical composition of the material must be consistent with the valve's operating conditions.

3. Welding control. EU standards require that welding must be completed by qualified personnel in accordance with reasonable process regulations.

4. Non-destructive testing. Non-destructive testing of permanent welding of valves must be performed by qualified personnel, and the qualifications of non-destructive testing personnel must be recognized by authorized agencies or third-party agencies recognized by member states.

5. Pressure detection.

6. Manufacturing control. Valve production should have good technology, such as forging technology, heat treatment technology, etc.

7. Valve manufacturers not only need to have a series of ISO 9000 related documents, such as procedure documents and quality manuals, etc., but also PED requires special quality assurance manuals as supplementary procedure documents to ensure product safety.

8. Other requirements, such as joint coefficient requirements, pressure limiting device requirements, and instantaneous pressure must be controlled within a certain range of the maximum allowable pressure.