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Calculation tool for determining the PWHT parameters
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Hollomon-Jaffe Parameter: Minimizing negative effects through multiple PWHT Cycles
Leakage rate conversion
Hydrogen generator systems – safety requirements
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Piping Codes suitable for PED applications?
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Additional requirements for welding procedure qualification (WPQR) in accordance with EN 13445-4 clause 8.3
Carbon Equivalent formula for steel – An overview
CE (IIW) – Carbon Equivalent Calculator

Category: Testing and inspection

Industrial piping En 13480
What means ISO 5208 leakage rate A?

The ISO 5208 rate A specify a leakage by internal tightness seat test (or often also called closure test) of valves. Usually one side (more…)

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Industrial piping En 13480
ISO 5208: Valve seat leakage rate

The internal tightness of valves is an essential safety requirement in pressurized systems. Leaks can be a danger to people and the environment or (more…)

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industrial piping EN 13480
Valve seat test – What are Standards for leakage acceptance?

At the valve seat leakage test (also called closure test), one side (valve inlet) shall be subjected to the test pressure and amount of (more…)

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pressure-gauge
EN 13445: Hydrostatic Pressure Test Requirements

The PED pressure test requirements are contain in the essential requirements in Annex I section 7.4. The hydrostatic pressure test is part of the final inspection in acc. to PED … more

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Leakage
Leakage detection limit for leakage tests in industrial applications?

Knowledge of the leakage detection limits for leakage test methods to prove “tightness”. Absolute “tightness” does not exist. Permissible limit values for leakages are (more…)

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Leakage
What is the definition of the leakage rate?

The definition of the leakage rate is necessary to make requirements comparable. The term leakage refers to the unintentional escape of gases or liquids (more…)

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Is leakage of pressure equipment covered by PED?

Yes, whenever internal or external leakage of pressure equipment (i.e. leakage to atmosphere/environment) is a hazard due to pressure, it is covered by the (more…)

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