Amavalvu okuphonsa angamavalvu enziwe ngokuphonsa. Ngokuvamile, izilinganiso zokucindezela zamavalvu okuphonsa ziphansi kakhulu (njenge-PN16, PN25, PN40, kodwa kukhona nalawo anomfutho ophezulu, angafinyelela ku-1500Lb, 2500Lb), futhi iningi lama-caliber awo lingaphezu kwe-DN50. Amavalvu okuphonsa aqoshiwe futhi ngokuvamile asetshenziswa kumapayipi ebanga eliphezulu anama-caliber amancane, ngokuvamile angaphansi kwe-DN50.
1. Ukuphonsa
1. Ukubumba: Kuyinqubo yokuncibilikisa insimbi ibe uketshezi oluhlangabezana nezidingo ezithile bese luthululelwa esikhumbeni. Ngemva kokupholisa, ukuqina, nokuhlanza, kutholakala ukubumba (ingxenye noma ingenalutho) okunesimo, usayizi kanye nokusebenza okunqunyiwe. Ubuchwepheshe obuyisisekelo bomkhakha wokukhiqiza imishini yesimanje.
2. Uboya obukhiqizwe ngobumba buphansi futhi ngezindleko, futhi bungabonisa ukusebenza kahle kwayo okonga izingxenye ezinezimo eziyinkimbinkimbi, ikakhulukazi ezinezimbobo zangaphakathi eziyinkimbinkimbi; ngesikhathi esifanayo, buyakwazi ukuzivumelanisa nezimo eziningi kanye nezakhiwo ezingcono kakhulu zemishini.
3. Izinto (ezifana nensimbi, ukhuni, uphethiloli, izinto zokwenza imodeli, njll.) kanye nemishini (ezifana nezitofu zensimbi, abaxubi besihlabathi, imishini yokubumba, imishini yokwenza umongo, imishini yokushukumisa, imishini yokuqhumisa ngokudubula, amapuleti ensimbi aqoshiwe, njll.) adingekayo ekukhiqizeni ukuthunga) Kuningi, futhi kuzokhiqiza uthuli, igesi eyingozi nomsindo futhi kungcolise imvelo.
4. Ukusakaza uhlobo lobuchwepheshe bokucubungula ukushisa kwensimbi isintu esibufundile ngaphambilini, olunomlando weminyaka engaba ngu-6000.
Ngo-3200 BC, kwavela ukuthungwa kwamaxoxo ethusi eMesopotamia. Phakathi kwekhulu le-13 BC nekhulu le-10 BC, iShayina isingene esikhathini sokuqhakaza kokuthungwa kwethusi.
Ubuciko bufinyelele ezingeni eliphezulu kakhulu, njenge-Simuwu Fangding Ding engu-875 kg evela kuBukhosi baseShang, ipuleti likaZenghou Yizun elivela eNkathini Yezizwe Ezilwayo, kanye nesibuko esikhanyayo esivela kuBukhosi baseWestern Han konke lokhu kumelele ukubunjwa kwasendulo.
umkhiqizo. Ukubumba kwasekuqaleni kwakuthonywe kakhulu yizinto zobumba, futhi iningi lokubumba kwakungamathuluzi noma izitsha zokukhiqiza kwezolimo, inkolo, kanye nokuphila.
Umbala wobuciko unamandla. Ngo-513 BC, iShayina yaphonsa izinsimbi zokuqala emhlabeni (ezinesisindo esingamakhilogremu angu-270), ezingatholakala emarekhodini abhaliwe.
Cishe ngekhulu lesi-8, iYurophu yaqala ukukhiqiza izinto zokuthunga zensimbi. Ngemva kweNguquko Yezimboni ngekhulu le-18, izinto zokuthunga zangena enkathini entsha yokukhonza izimboni ezinkulu.
Ekhulwini lama-20, intuthuko esheshayo yokwenziwa kwensimbi ithuthukiswe. Insimbi ehlanganisiwe enezimbotshana, insimbi ehlanganisiwe ethambile, insimbi engagqwali enekhabhoni ephansi kakhulu, ithusi le-aluminium, i-silicon ye-aluminium, kanye nama-aluminium-magnesium alloys athuthukiswe ngokulandelana.
Izinto zokusika insimbi ezifana ne-alloys esekelwe ku-titanium kanye ne-nickel, futhi basungula inqubo entsha yokugoma insimbi empunga. Ngemva kweminyaka yawo-1950, kwavela imodeli yesihlabathi esimanzi enomfutho ophezulu,
Ukumodela isihlabathi sokuqinisa amakhemikhali kanye nokwenza i-core, ukumodela i-negative pressure, okunye ukuphonswa okukhethekile, ukuqhumisa ama-shot kanye nobunye ubuchwepheshe obusha.
5. Kunezinhlobo eziningi zokubumba, ezihlukaniswe kanje: ①Ukubumba isihlabathi okuvamile, okuhlanganisa izinhlobo ezintathu zesihlabathi esiluhlaza, isihlabathi esomile nesihlabathi esiqiniswe ngamakhemikhali. ②Ukubumba okukhethekile, ngokusho kwezinto zokubumba, kungahlukaniswa kube ukubumba okukhethekile ngesihlabathi samaminerali semvelo kanye netshe eliyigugu njengezinto eziyinhloko zokubumba (njengokubumba okutshalwe imali, ukubumba ngobumba, ukubumba igobolondo le-workshop, ukubumba okunengcindezi engemihle, ukubumba okuqinile, ukubumba ngobumba) Njll.) kanye nokubumba okukhethekile ngensimbi njengezinto eziyinhloko zokubumba (njengokubumba kwensimbi, ukubumba ngokucindezela, ukubumba okuqhubekayo, ukubumba okuphansi, ukubumba nge-centrifugal, njll.).
6. Inqubo yokubumba ivame ukufaka: ①Ukulungiswa kwezinhlobo zesikhunta (izitsha ezenza insimbi ewuketshezi ibe yizinhlobo zesikhunta eziqinile). Izinhlobo zesikhunta zingahlukaniswa zibe yisihlabathi, insimbi, i-ceramic, ubumba, i-graphite, njll., ngokwenani lezikhathi zokusetshenziswa. Ukuze zisetshenziswe ngokulahlwayo, ezihlala isikhathi eside nezihlala njalo, ikhwalithi yokulungiswa kwezinhlobo zesikhunta iyisici esiyinhloko esithinta ikhwalithi yezinhlobo zesikhunta; ②Ukuncibilika nokuthululwa kwezinhlobo zensimbi ezibunjiwe, izinsimbi ezibunjiwe (ama-alloy okubhaka) ikakhulukazi zifaka insimbi ebunjiwe, insimbi ebunjiwe kanye nama-alloy angenawo u-ferrous; ③ Ukucubungula nokuhlola ubumba. Ukucubungula ubumba kufaka phakathi ukususwa kwezinto zangaphandle enkabeni nasophahleni lwezinhlobo zesikhunta, ukususwa kwama-risers okuthulula, ukufoshwa kwama-burrs kanye nama-drape seams, kanye nokwelashwa kokushisa, ukwakheka, ukwelashwa kokulwa nokugqwala kanye nomshini onzima. I-valve yepompo yokungenisa

INortech ingenye yabakhiqizi bama-valve ezimboni abahamba phambili eShayina abanesitifiketi sekhwalithi se-ISO9001.

Imikhiqizo emikhulu:I-Butterfly Valve,I-Ball Valve,I-Valve yeSango,Hlola i-Valve,I-Globe Vavlve,Izihlungi ze-Y,I-Acurator kagesi,Ama-Acurators omoya.