T/CAS ES460102003-2022 Active

Scope: This document specifies the evaluation procedures and requirements, evaluation methods, and quality grading for forged steel valves (gate valves, globe valves, and check valves). This document applies to the quality grading evaluation of forged steel valves with a nominal pressure of less than or equal to PN420 (Class 2500) and a nominal size of DN15 to DN100 (NPS1/2 to NPS4). Main Technical Content: 1. Scope: This document specifies the evaluation procedures and requirements, evaluation methods, and quality grading for forged steel valves (gate valves, globe valves, and check valves). This document applies to the quality grading evaluation of forged steel valves with a nominal pressure of less than or equal to PN420 (Class 2500) and a nominal size of DN15 to DN100 (NPS1/2 to NPS4). 2. Normative References: The content of the following documents is incorporated into this document through normative references. Among them, the referenced documents with a specified date only apply to this document in the version corresponding to that date; the unspecified date referenced documents apply to this document in their latest version (including all amendment sheets). - GB/T 228 Metal Materials - Tensile Testing - Part 1: Room Temperature Test Methods - GB/T 12224 Steel Valves - General Requirements - GB/T 26480 Valve Inspection and Testing - GB/T 26481 Valve Leakage Testing - NB/T 47013.3 Pressure Equipment Non-Destructive Testing - Part 3: Ultrasonic Testing - NB/T 47013.4 Pressure Equipment Non-Destructive Testing - Part 4: Magnetic Particle Testing - JB/T