Awọn ipese ti o yẹ ni orilẹ-edeflangeboṣewa “GB/T9124-2010 Awọn ipo Imọ-ẹrọ fun Awọn Flanges Pipe”:

3.2.1 Fun flanges pẹlu awọn titẹ ipin ti PN2.5-PN16 Class150, irin kekere carbon, ati austenitic alagbara, irin forgings ti wa ni laaye lati wa ni Class I forgings (lile ti wa ni idanwo nkan nipa nkan).

3.2.2 Ti awọn ipo wọnyi ba pade, awọn ayederu fun awọn flanges yoo pade awọn ibeere ti Kilasi III tabi awọn ayederu loke (ayẹwo fifẹ iṣapẹẹrẹ ati idanwo ultrasonic ọkan nipasẹ ọkan):

1. Forgings fun flanges pẹlu ipin titẹ ≥PN100 ati ≥Class600;

2. Chromium-molybdenum irin forgings fun awọn flanges pẹlu awọn titẹ orukọ ≥PN63 ati ≥Class300;

3. Ferrite forgings fun flanges pẹlu ipin titẹ ≥ PN25 ati Class ≥ 300 ati awọn ọna otutu ≤ -20 ° C.

3.2.3 Miiran flange forgings yẹ ki o wa ni ibamu pẹlu awọn ibeere fun ite II tabi loke forgings (ayẹwo iranran ati iyaworan).