ASME Code Cases are approved exceptions or alternatives to code rules. They include specific requirements that, when fully and correctly implemented, help users achieve continued quality and safety. Code Cases are not mandatory but may be used for Code compliance …
The maximum allowable working pressure MAWP is a very important therm in the ASME BPVC and therefore essential for construction safety. The ASME BPVC requires, that the manufacturer specify the MAWP on the nameplate of the pressure vessel and should …
The maximum allowable working pressure MAWP is a very important therm in the ASME BPVC and therefore essential for construction safety. Note: The MAWP is not defined in the PED. The maximum allowable working pressure (MAWP) is: (see also UG-98)
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At the valve seat leakage test (also called closure test), one side (valve inlet) shall be subjected to the test pressure and amount of leak shall be measured on the opposite side of the valve. The seat leakage of control …
Understanding the differences between Pressure Safety Valves – PSV and Pressure Relief Valves – PSV is essential for selecting the appropriate device for a specific application. Pressure relieving devices include mechanisms such as Pressure Safety Valves (PSV) and Pressure Relief …
Piping in acc. to ISO 3183 and API SPEC 5L must be evaluated with regard to their suitability for the use of hydrogen. Additional test procedures at qualifications of line pipes are required. Specifications and standards Specifications and standards for …
HIC-resistant steels are used when carbon steel is exposed to hydrogen sulphide (H2S) in the acidic or humid H2S environment of electrochemical corrosion reactions. HIC (Hydrogen Induced Cracking) is prevalent in wet H2S environments, which is often known as sour …
The common austenitic grades of stainless steel, such as 304 and 316, are also available “standard” and with controlled low carbon “L” or high carbon “H” contents, with particular applications. Grade UNS EN-Number Specified Carbon (%) Remarks 304 S30400 1.4301 …
The EN material number according to EN 10027-2 is a unique number and is primarily based on the chemical composition and is primarily used in Europe. However, there are also other systems which are explained below. The regulations for pressure …
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