Tulaga talafeagai i totonu o le atunuuflangetulaga masani "GB/T9124-2010 Tulaga Fa'ainisinia mo Flanges Paipa Uamea":

3.2.1 Mo flanges ma mamafa mamafa o le PN2.5-PN16 Class150, uamea kaponi maualalo, ma austenitic u'amea u'amea u'amea e fa'ataga e fa'atauva'a Vasega I (o le ma'a'a e fa'ata'ita'iina i lea vaega ma lea vaega).

3.2.2 Afai e ausia tulaga nei, o le faʻaogaina o flanges e tatau ona ausia manaʻoga o le Vasega III poʻo luga aʻe o faʻamaʻi (suʻega faʻataʻitaʻiga ma suʻega ultrasonic taʻitasi):

1. Fa'ailoga mo flanges fa'atasi ai ma le mamafa o le ≥PN100 ma le ≥Class600;

2. Chromium-molybdenum u'amea u'amea mo flanges ma mamafa mamafa ≥PN63 ma ≥Class300;

3. Ferrite forgings mo flanges ma le mamafa mamafa ≥ PN25 ma Vasega ≥ 300 ma faagaoioia vevela ≤ -20 °C.

3.2.3 O isi fa'a'au'au e tatau ona fa'amalieina ma mana'oga mo fa'amea ole Vasega II po'o luga atu (su'esu'ega ma ata tusi).