Dị ka ụdị njikọ flange si dị, nkeahụ urukurubụba valvụA na-ekewakarị n'ime: ụdị wafer A, ụdị wafer LT, otu flange, flange abụọ, ụdị flange U.
Ụdị Wafer A bụ njikọ oghere na-enweghị eriri, LT ụdị 24 "n'elu nnukwu nkọwa na-ejikarị ike U-ụdị valvụ ahụ mee njikọ eriri, njedebe nke pipeline kwesịrị iji ụdị LT.
Dị ka ihe owuwu akara, naahụ urukurubụba valvụnwere ike kewaa rọba vulcanized ahu (na-abụghị nnọchi oche ahụ), gbawara valvụ ahụ (n'ozuzu na corrosion na-eguzogide oche), na nnọchi oche oche (na ike azụ oche na nro oche).
Ihe ahụ anyị na-ejikarị na valves concentric urukurubụba bụ: nkedo ígwè, ductile ígwè, nkedo ígwè ahụ, nkedo igwe anaghị agba nchara ahụ, nkedo ọla kọpa ahụ, nkedo aluminum ahu na nkedo super duplex ígwè ahụ.
Igwe ihe nkedo: Ihe a na-ahụkarị n'ime valvụ urukurubụba, nke a na-ejikarị na usoro mmiri, dị mfe imebi, obere ọrụ ndụ, ọnụ ala.
Nkedo ígwè: Nkedo ígwè bụ adabara nominal mgbali PN ≤ 1.0MPa, okpomọkụ -10 ℃ ~ 200 ℃ mmiri, uzuoku, ikuku, gas na mmanụ na ndị ọzọ na mgbasa ozi.Ọkọlọtọ na akara ule ndị a na-ejikarị agba ntụ bụ: GB/T 12226, HT200, HT250, HT300, HT350.
Ductile iron: Na nru ububa valvụ arụmọrụ bụ tụnyere carbon ígwè a ihe onwunwe, na-ejikarị na mmiri usoro pipeline, ma ugbu a usoro mmiri na ojiji nke a dịgasị iche iche nke ihe.
Iron ductile: Kwesịrị ekwesị maka PN ≤ 2.5MPa, okpomọkụ -30 ~ 350 ℃ mmiri, uzuoku, ikuku na mmanụ na mgbasa ozi ndị ọzọ.Ụkpụrụ na akara ule ndị a na-ejikarị bụ: GB/T12227:2005 QT400-15, QT450-10, QT500-7;EN1563 EN-GJS-400-15,ASTM A536,65 45-12,ASTM A395,65 45 12.
Carbon ígwè: Enwere ike iji na usoro mmiri, carbon steel nru ububa valvụ nwere okpomọkụ dị elu na nguzogide nrụgide, valvụ nchara siri ike n'ozuzu ya na ihe eji carbon ígwè.
Carbon ígwè: Kwesịrị ekwesị maka nominal mgbali PN ≤ 3.2MPa, okpomọkụ -30 ~ 425 ℃ mmiri, uzuoku, ikuku, hydrogen, amonia, nitrogen na mmanụ ala ngwaahịa na ndị ọzọ na-ajụ.Akara ule na ụkpụrụ ndị a na-ejikarị bụ ASTM A216 / 216M: 2018WCA, WCB, ZG25 na ígwè dị elu 20, 25, 30 na ala alloy structural steel 16MN.
Igwe anaghị agba nchara: valvụ nchara nchara nwere ezigbo nchara na nguzogide corrosion, a na-ejikwa ya na pipeline nke chọrọ nrụrụ na nchara nchara, ọnụ ahịa ya dịkwa oke elu.Ọdabara na nrụgide n'ọnụ PN ≤ 6.4.0MPa, ọnọdụ okpomọkụ: -268 ° C ruo + 425 ° C, a na-ejikarị na mmiri, mmiri mmiri, ụlọ ọrụ kemịkalụ, mmanụ na gas, ọgwụ, nri nri.Ụkpụrụ na akara ule ndị a na-ahụkarị: ASTM A351/351M:2018, SUS304,304, SUS316, 316
ọla kọpa alloy: ọla kọpa alloy urukurubụba valvụ adabara PN ≤ 2.5MPa mmiri, oké osimiri, oxygen, ikuku, mmanụ na ndị ọzọ na-ajụ, yana uzuoku media na okpomọkụ nke -40 ~ 250 ℃, a na-ejikarị akara ule maka ZGnSn10Zn2 (tin bronze). ), H62, Hpb59-1 (ọla), QAZ19-2, QA19-4 (aluminom ọla).Ụkpụrụ na akara ule ndị a na-ahụkarị: ASTM B148:2014, UNS C95400, UNS C95500, UNS C95800;ASTM B150 C6300.