Momwe mungasankhire flange

1. Pakali pano pali miyezo inayi ya flange ku China, yomwe ndi:

(1) National flange muyezo GB/T9112~9124-2000;

(2) Chemical makampani flange muyezo HG20592-20635-1997

(3) Makina opanga flange muyezo JB/T74~86.2-1994;

(4) Muyezo wa flange wamakampani a petrochemical SH3406-1996

Potengera muyezo wa dziko mwachitsanzo, fotokozani kusankha ma flanges. The national standard flange imagawidwa m'magulu awiri akuluakulu: European system ndi American system. Kupanikizika mwadzina kwa flanges ku Ulaya kumaphatikizapo: PN0.25, PN0.6, PN1.0, PN1.6, PN2.5, PN4.0, PN6.3, PN10.0, ndi PN16.0MPa; Kupanikizika mwadzina kwa ma flanges aku America kumaphatikizapo PN2.0, PN5.0, PN11.0, PN15.0, PN26.0, ndi PN42.OMpa

2. Maziko kusankha flanges

(1) Katundu wa sing'anga yotumizira, kuphatikiza sing'anga, sing'anga yapadera, sing'anga yapoizoni, sing'anga yoyaka ndi kuphulika;

(2) Malingana ndi magawo a sing'anga, kuthamanga kwa ntchito, ndi kutentha kwa ntchito, pamene sing'anga imatsimikiziridwa, kuthamanga kwadzina PN kwa flange kumatsimikiziridwa malinga ndi kutentha kwa ntchito ndi kupanikizika kwa sing'anga.

(3) Dziwani njira yolumikizirana ndi mawonekedwe osindikizira pamtunda pakati pa ma flanges ndi mapaipi potengera malo ogwiritsira ntchito ndi mikhalidwe yolumikizira.

(4) Dziwani zambiri za flange potengera chinthu cholumikizira.