A cikin HG,butt-welded flanges, lebur-welded flangeskumasoket welded flangessuna da ma'auni daban-daban.Abubuwan da ake amfani da su sun bambanta, bugu da ƙari, flange-welding shine diamita bututu da kauri na bangon ƙarshen mahaɗin kuma iri ɗaya ne da bututun da za a welded, kuma bututun biyu suna welded kuma.
Flat waldi flangewani dandali ne mai matsuguni wanda ya fi diamita na waje girma dan kadan a wurin sadarwa, kuma ana shigar da bututun a cikinsa.
A waldi yi na butt waldi ne mafi alhẽri da kuma lalata ne karami.
Flat waldi flangesana amfani da su gabaɗaya don ƙananan bututun matsa lamba,butt-welding flangesana amfani da su don haɗa bututun matsakaici da matsa lamba,butt-welding flangesGabaɗaya sun kasance aƙalla PN2.5Mpa, amfani da walƙiya na butt shine don rage ƙarfin damuwa.

Siffofindaban-daban flanges:
Socket waldi flangeya dace da ƙananan diamita, babban matsa lamba, haɗin bututu mai zafin jiki.
Lebur waldidaidai yake da waldar gindi da maigida, sai a yanke maigidan a cikin rami, sannan a sanya bututun a cikin walda.
Socket waldiba shugaba bane, a cikin jikin flange kai tsaye yanke tsagi, kamar rami a kan flange makaho, sannan a yanke tsagi.
Lebur waldiya fi socket waldi.