Iivalve zokuphosa ziivalve ezenziwe ngokuphosa.Ngokuqhelekileyo, ukulinganiswa koxinzelelo lwee-valve ze-valve ziphantsi (ezifana ne-PN16, i-PN25, i-PN40, kodwa kukho noxinzelelo oluphezulu, olunokufikelela kwi-1500Lb, i-2500Lb), kwaye uninzi lwazo lungaphezulu kwe-DN50.Iivalvu ezibunjiweyo zenziwe ngenkohliso kwaye zisetyenziswa ngokubanzi kwimibhobho yodidi oluphezulu enemilinganiselo emincinci ngokwentelekiso, ngaphantsi kwe-DN50 ngokubanzi.
1. Ukuphosa
1. Ukuphosa: Yinkqubo yokunyibilikisa isinyithi ibe lulwelo oluhlangabezana neemfuno ezithile kwaye lugalele kubumba.Emva kokupholisa, ukuqina, kunye nokucoca, i-casting (inxalenye okanye ingenanto) enemilo enqunywe kwangaphambili, ubungakanani kunye nokusebenza kufunyenwe.Itekhnoloji esisiseko yoshishino lokwenziwa koomatshini banamhlanje.
2. Uboya obuveliswe ngokutyhidiweyo buphantsi kweendleko, kwaye bunokubonisa ukusebenza kakuhle kwezoqoqosho kwiindawo ezinemilo enzima, ngakumbi kunye nemigodi yangaphakathi enzima;kwangaxeshanye, inokuguquguquka okubanzi kunye neempawu ezingcono zoomatshini.
3. Izinto (ezifana nentsimbi, iinkuni, i-fuel, izinto zokubumba, njl. njl.) kunye nezixhobo (ezifana nezitofu zetsimbi, izixube zesanti, oomatshini bokubumba, oomatshini bokwenza izinto eziphambili, oomatshini bokushukuma, oomatshini bokuqhumisa, iipleyiti zentsimbi, njl.njl.) efunekayo kwimveliso yokusasa) Ingaphezulu, kwaye iza kuvelisa uthuli, igesi eyingozi kunye nengxolo kwaye ingcolise okusingqongileyo.
4. I-Casting luhlobo lwetekhnoloji ye-metal yokulungisa i-thermal ethe uluntu lwakwazi ngaphambili, kunye nembali malunga neminyaka engama-6000.
Ngo-3200 BC, ukuphoswa kwamasele obhedu kwavela eMesopotamiya.Phakathi kwenkulungwane ye-13 BC kunye nenkulungwane ye-10 BC, i-China ingene kwimbali yokwenziwa kobhedu.
Ubuchwephesha bufikelele kwinqanaba eliphezulu kakhulu, njenge-875 kg ye-Simuwu Fangding Ding esuka kwi-Shang Dynasty, i-Zenghou Yizun ipleyiti esuka kwi-War States Period, kunye nesibuko esiguquguqukayo esivela kwi-Western Han Dynasty bonke bamele ukuphosa kwamandulo.
imveliso.Ukubunjwa kwangaphambili kwakuphenjelelwa kakhulu zizitya zomdongwe, yaye inkoliso yezo zakhiwo zaziyizixhobo okanye izitya zemveliso yezolimo, unqulo nobomi.
Umbala wobugcisa unamandla.Ngo-513 BC, i-China yaphosa i-casting yentsimbi yokuqala yehlabathi (malunga ne-270 kilogram ubunzima), enokufumaneka kwiirekhodi ezibhaliweyo.
Malunga nenkulungwane ye-8, iYurophu yaqala ukuvelisa iintsimbi zentsimbi.Emva kweNguquko yoShishino ngenkulungwane ye-18, ukuphoswa kwangena kwixesha elitsha lenkonzo kumashishini amakhulu.
Ngenkulungwane yama-20, uphuhliso olukhawulezayo lokusakha luye lwaphuhliswa.Intsimbi etyhidiweyo eyi-nodular cast, intsimbi ekhatywayo ethambileyo, i-ultra-low carbon stainless steel, i-aluminium yobhedu, i-silicon ye-aluminium, kunye ne-aluminium-magnesium alloys ziye zaphuhliswa ngokulandelelana.
Ukuphosa izinto zetsimbi ezifana ne-titanium-based kunye ne-nickel-based alloys, kwaye kwavela inkqubo entsha yokutofa intsimbi engwevu.Emva kweminyaka yoo-1950, kwavela imodeli yoxinzelelo oluphezulu lwesanti emanzi.
Ukwenziwa lukhuni kweekhemikhali kwimodeli yesanti kunye nokwenziwa kondoqo, imodeli yoxinzelelo olubi, okunye ukuphosa okukhethekileyo, ukudubula kweetekhnoloji kunye nobunye ubuchwephesha obutsha.
5. Zininzi iintlobo zokusatywa, ezahlulahlulwe zibe: ①Ukugqwala kwesanti okuqhelekileyo, kuqukwa neentlobo ezi-3 zesanti eluhlaza, isanti eyomileyo kunye nesanti eqiniswe ngokwekhemikhali.②Ukuphoswa okukhethekileyo, ngokwezinto ezibonisa imodeli, kunokwahlulwa ngokuyilwa okukhethekileyo ngesanti yamaminerali yendalo kunye negrabile njengeyona nto iphambili yokwenza imodeli (efana nokuphosa utyalo-mali, ukubunjwa kodongwe, ukuphosa iqokobhe leworkshop, ukuphosa uxinzelelo olubi, ukuphosa okuqinileyo, ukuphosa ngeceramic) Njll.) kunye nokuphosa okukhethekileyo ngetsimbi njengento ephambili yokubumba (njengokubumba kwesinyithi, ukunyanzeliswa kwengcinezelo, ukuphosa okuqhubekayo, ukunyanzeliswa kwengcinezelo ephantsi, ukuphosa i-centrifugal, njl.).
6. Inkqubo yokuphosa idla ngokubandakanya: ①Ukulungiswa kokungunda (izikhongozelo ezenza isinyithi esilulwelo sibe ziintsimbi eziqinileyo).Iimbumba zinokwahlulwa zibe yintlabathi, isinyithi, i-ceramic, udongwe, igraphite, njl., ngokwenani lamaxesha okusetyenziswa.Ukulahla, i-semi-permanent kunye nesigxina, umgangatho wokulungiswa kwesikhunta yinto ephambili echaphazela umgangatho wokuphosa;②Ukunyibilika kunye nokugalelwa kwesinyithi, isinyithi esityhidiweyo (i-alloys yokuphosa) ikakhulu ibandakanya intsimbi etyhidiweyo, intsimbi etyhidiweyo kunye ne-alloys engena-ferrous;③ Ukusetyenzwa kunye nokuhlolwa.Ukusetyenzwa kwe-casting kubandakanya ukususwa kwemizimba yangaphandle kumbindi kunye nomphezulu wokuphosa, ukususwa kwezinyusi ezigalelayo, ukuhlatywa kwee-burrs kunye ne-drape seams, kunye nokunyanga ubushushu, ukubunjwa, unyango lokuchasa umhlwa kunye nomatshini ongcolileyo.Impompo ivelufa yokuthatha ngaphandle

I-Nortech ngomnye wabavelisi abakhokelayo bevalvu yeshishini e-China kunye nesiqinisekiso somgangatho we-ISO9001.

Iimveliso eziphambili:Ivalve yebhabhathane,Ivalve yeBhola,Ivalve yeSango,Jonga iValve,Iglobhu iVavlve,I-Y-Strainers,Iacurator yoMbane,I-Pneumatic Acurators .