Umenzi kunye nomcebisi wokukhetha iivalvu zemibhobho kulawulo lolwelo lwemizi-mveliso
Singumvelisi weevalvu ochwephesha onamava eminyaka emininzi kwimveliso nasekuthumeleni kwamanye amazwe. Siqhelene nolwakhiwo kunye nemigaqo yeevalvu ezahlukeneyo kwaye sinokukunceda ukhethe uhlobo lweevalvu olufanelekileyo ngokweendlela ezahlukeneyo zokuhambisa iipayipi kunye neendawo ezingqongileyo. Siza kukunceda uchithe iindleko ezincinci ngelixa uhlangabezana ngokupheleleyo neemeko zokusetyenziswa kwaye uqinisekisa ubomi benkonzo.
Iimeko zokusebenza ezifanelekileyo zevalvu
Iivalvu zethu zisetyenziswa kakhulu kwi-petroleum, kwishishini leekhemikhali, kwigesi yendalo, ekwenzeni amaphepha, ekunyangweni kwamanzi amdaka, kumandla enyukliya, njl. Zijoliswe kwiimeko ezahlukeneyo zokusebenza ezinzima, ezinje ngobushushu obuphezulu, uxinzelelo oluphezulu, i-asidi enamandla, i-alkalinity enamandla, ukungqubana okuphezulu, njl. Iivalvu zethu zinokuguquguquka kakhulu. Ukuba ufuna ulawulo lokuhamba kwamanzi, ulawulo lobushushu, ulawulo lwe-pH, njl.njl. lwemidiya yepayipi, iinjineli zethu ziya kukunika iingcebiso zobungcali kunye nokukhetha.
Iivalvu ze-NSW
I-NSW ihambelana ngokungqongqo nenkqubo yolawulo lomgangatho ye-ISO9001. Siqala kwiindawo zokuqala ezingenanto zomzimba wevalvu, isigqubuthelo sevalvu, iindawo zangaphakathi kunye nezibophelelo, emva koko sicubungule, sidibanise, sivavanye, sipeyinte, size ekugqibeleni sipakishe size sithumele. Sivavanya ngononophelo ivalvu nganye ukuqinisekisa ukuba ivalvu ayivuzi kwaye ikhuselekile ukuyisebenzisa, ikumgangatho ophezulu, isemgangathweni ophezulu kwaye ihlala ixesha elide.
Iimveliso zeevalvu ezisetyenziswa kakhulu kwimibhobho yemizi-mveliso
Iivalvu kwimibhobho yemizi-mveliso zizixhobo zemibhobho ezisetyenziselwa ukuvula nokuvala imibhobho, ukulawula indlela yokuhamba, ukulungisa nokulawula iiparameter (ubushushu, uxinzelelo kunye nokuhamba) kwesixhobo esithuthwayo. Ivalvu yinxalenye yolawulo kwinkqubo yokuthutha ulwelo kwimibhobho yemizi-mveliso. Inemisebenzi yokusika, ukusika ngokukhawuleza, ukuvala, ukulawula, ukuphambukisa, ukuthintela ukuhamba okungasemva, ukuzinzisa uxinzelelo, ukuphambukisa okanye ukunciphisa uxinzelelo olugqithisileyo kunye neminye imisebenzi yolawulo lolwelo. Ingasetyenziselwa ukulawula ukuhamba kweentlobo ezahlukeneyo zolwelo ezifana nomoya, amanzi, umphunga, imidiya eyahlukeneyo ebolileyo, udaka, ioyile, isinyithi esilulwelo kunye nemidiya enemisebe.
Iintlobo zeevalvu zemibhobho yemizi-mveliso yaseNSW
Iimeko zokusebenza kwimibhobho yemizi-mveliso ziyinkimbinkimbi, ngoko ke i-NSW iyila, iphuhlisa, kwaye ivelise iintlobo ezahlukeneyo zeevalvu kwiindawo ezahlukeneyo zokusetyenziswa ukuze ihlangabezane nemisebenzi kunye neemfuno ezifunekayo ngabasebenzisi ngexesha lokusetyenziswa.
Ivalvu Yokuvala Uxinzelelo yivalvu eyilwe ngokukodwa, esetyenziswa kakhulu kwimibhobho yegesi okanye yolwelo, enokusika ulwelo olukwimibhobho ngokukhawuleza ngexesha likaxakeka ukuqinisekisa ukhuseleko lwabasebenzi nezixhobo. Le valve idla ngokufakwa kwizixhobo zegesi ezinyibilikisiweyo, izikhongozeli zeetanki, iitanki zokugcina okanye imibhobho, kwaye ingavalwa ngokukhawuleza ngesandla okanye ngokuzenzekelayo ngexesha likaxakeka. Umsebenzi ophambili weValvu Yokuvala Uxinzelelo kukuvala okanye ukuvula ngokukhawuleza ngexesha likaxakeka ukuthintela iingozi okanye ukunciphisa ububanzi beengozi.
Ingaphakathi levalvu yibhola engqukuva enemingxuma. Ipleyiti ihambisa isiqu sevalvu ukuze ukuvulwa kwebhola kuvuleke ngokupheleleyo xa ijonge kumgca wombhobho, kwaye ivalwe ngokupheleleyo xa ijikwe ngama-90°. Ivalvu yebhola inomsebenzi othile wokulungisa kwaye ingavala kakuhle.
I-valve core yipleyiti yevalvu ejikelezayo enokujikeleziswa ecaleni kwe-axis ethe nkqo ukuya kwi-axis yombhobho. Xa iplane yepleyiti yevalvu ihambelana ne-axis yombhobho, ivuleka ngokupheleleyo; xa iplane yepleyiti yevalvu yebhabhathane imile nkqo kumbhobho, ivaliwe ngokupheleleyo. Ubude bomzimba wevalvu yebhabhathane buncinci kwaye ukumelana nokuhamba kwamanzi kuncinci.
Imilo yeplagi yevalvu inokuba yi-cylindrical okanye i-conical. Kwiiplagi zevalvu ze-cylindrical, iitshaneli zihlala zi-rectangular; kwiiplagi zevalvu ezi-tapered, iitshaneli ziyi-trapezoidal. Phakathi kwezinye izinto, ivalvu yeplagi ye-DBB yimveliso ekhuphisanayo kakhulu yenkampani yethu.
Yahlulwe yaba yi-stem evulekileyo ne-hidden stem, i-single gate kunye ne-double gate, i-wedge gate kunye ne-parallel gate, njl.njl., kwaye kukwakho ne-valve yesango efana nemela. Ubungakanani bomzimba we-valve yesango buncinci kwicala lokuhamba kwamanzi, ukumelana nokuhamba kwamanzi kuncinci, kwaye ububanzi be-valve yesango bukhulu.
Isetyenziselwa ukuthintela ukubuya kolwelo, isebenzisa amandla e-kinetic olwelo ngokwalo ukuzivula, kwaye izivaleka ngokuzenzekelayo xa kuvela ukubuya kolwelo. Ihlala ifakelwa kwindawo yokuphuma kwepompo yamanzi, kwindawo yokuphuma yetraphu yomphunga nakwezinye iindawo apho ulwelo olubuyela umva lungavumelekanga. Iivalvu zokujonga zahlulwe ngohlobo lwe-swing, uhlobo lwe-piston, uhlobo lokuphakamisa kunye nohlobo lwe-wafer.
Isetyenziselwa ukuthintela ukubuya kolwelo, isebenzisa amandla e-kinetic olwelo ngokwalo ukuzivula, kwaye izivaleka ngokuzenzekelayo xa kuvela ukubuya kolwelo. Ihlala ifakelwa kwindawo yokuphuma kwepompo yamanzi, kwindawo yokuphuma yetraphu yomphunga nakwezinye iindawo apho ulwelo olubuyela umva lungavumelekanga. Iivalvu zokujonga zahlulwe ngohlobo lwe-swing, uhlobo lwe-piston, uhlobo lokuphakamisa kunye nohlobo lwe-wafer.
Khetha iivalvu ze-NSW
Kukho iintlobo ezininzi zeevalvu ze-NSW, singakhetha njani ivalvu, Singazikhetha iivalvu ngokweendlela ezahlukeneyo, ezifana nendlela yokusebenza, uxinzelelo, ubushushu, izinto, njl. Indlela yokukhetha yile ilandelayo.
Khetha nge-actuator yokusebenza kweevalvu
Iivalvu ze-Actuator ze-Pneumatic
Iivalvu zepneumatic ziivalvu ezisebenzisa umoya ocinezelweyo ukutyhala amaqela amaninzi eepiston ezidibeneyo zepneumatic kwi-actuator. Kukho iintlobo ezimbini ze-pneumatic actuators: uhlobo lwe-rack kunye ne-pinion kunye ne-Scotch Yoke Pneumatic Actuator.
Iivalvu zombane
Ivalvu yombane isebenzisa i-actuator yombane ukulawula ivalvu. Ngokuqhagamshela kwi-terminal ye-PLC ekude, ivalvu inokuvulwa kwaye ivalwe kude. Ingahlulwahlulwa ibe ngamacandelo aphezulu nasezantsi, inxalenye ephezulu yi-actuator yombane, kwaye inxalenye esezantsi yivalvu.
Iivalvu ezenziwe ngesandla
Ngokusebenzisa ngesandla isiphatho sevalvu, ivili lesandla, iturbine, igiya ye-bevel, njl.njl., izinto zolawulo kwinkqubo yokuhambisa ulwelo lombhobho ziyalawulwa.
Iivalvu ezizenzekelayo
Ivalvu ayifuni mandla angaphandle ukuze iqhube, kodwa ixhomekeke kumandla esixhobo ngokwayo ukuze isebenze ivalvu. Ezifana neevalvu zokhuseleko, iivalvu zokunciphisa uxinzelelo, imigibe yomphunga, iivalvu zokujonga, iivalvu zokulawula ngokuzenzekelayo, njl.
Khetha ngokwemisebenzi yeevalvu
Ivalvu yokusika
Ivalvu yokusika ikwabizwa ngokuba yivalvu yesekethe evaliweyo. Umsebenzi wayo kukudibanisa okanye ukusika i-medium ekwipayipi. Iivalvu zokusika ziquka iivalvu zesango, iivalvu zeglobe, iivalvu zeplagi, iivalvu zebhola, iivalvu zebhabhathane kunye neediaphragms, njl.njl.
Ivalvu yokujonga
Ivalvu yokukhangela ikwabizwa ngokuba yivalvu yendlela enye okanye ivalvu yokukhangela. Umsebenzi wayo kukuthintela ukuba i-medium ekwipayipi ingabuyeli umva. Ivalvu esezantsi yevalvu yokufunxa ipompo yamanzi ikwakwicandelo levalvu yokukhangela.
Ivalvu yokhuseleko
Umsebenzi wevalvu yokhuseleko kukuthintela uxinzelelo oluphakathi kumbhobho okanye kwisixhobo ukuba lungadluli kwixabiso elichaziweyo, ngaloo ndlela kufezekiswa injongo yokhuseleko.
Ivalvu yokulawula: Iivalvu zokulawula ziquka iivalvu zokulawula, iivalvu zombhobho kunye neevalvu zokunciphisa uxinzelelo. Umsebenzi wazo kukulawula uxinzelelo, ukuhamba kunye nezinye iiparameter zesixhobo.
Ivalvu yokujika
Iivalvu ezijikajikayo ziquka iivalvu ezahlukeneyo zokusasaza kunye neetraphu, njl. Umsebenzi wazo kukusasaza, ukwahlula okanye ukuxuba imidiya esendleleni.
Khetha ngokweevalvu zoxinzelelo
Ivalvu yokufunxa umoya
Ivalvu enoxinzelelo olusebenzayo oluphantsi kunoxinzelelo oluqhelekileyo lomoya.
Ivalvu yoxinzelelo oluphantsi
Ivalvu enoxinzelelo oluqhelekileyo ≤ Udidi lwe-150lb (PN ≤ 1.6 MPa).
Ivalvu yoxinzelelo oluphakathi
Ivalvu enoxinzelelo oluqhelekileyo yiKlasi ye-300lb, iKlasi ye-400lb (i-PN yi-2.5, 4.0, 6.4 MPa).
Iivalvu ezinoxinzelelo oluphezulu
Iivalvu ezineengcinezelo eziqhelekileyo zeKlasi 600lb, iKlasi 800lb, iKlasi 900lb, iKlasi 1500lb, iKlasi 2500lb (i-PN yi-10.0~80.0 MPa).
Ivalvu yoxinzelelo oluphezulu kakhulu
Ivalvu enoxinzelelo oluqhelekileyo ≥ Udidi lwe-2500lb (PN ≥ 100 MPa).
Khetha ngeevalvu zobushushu obuphakathi
Iivalvu zobushushu obuphezulu
Isetyenziselwa iivalvu ezinobushushu obuphakathi bokusebenza t > 450 ℃.
Iivalvu zobushushu obuphakathi
Isetyenziselwa iivalvu ezinobushushu obuphakathi obuyi-120°C.
Iivalvu zobushushu eziqhelekileyo
Isetyenziselwa iivalvu ezinobushushu obuphakathi bokusebenza obuyi -40 ℃ ≤ t ≤ 120 ℃.
Iivalvu zeCryogenic
Isetyenziselwa iivalvu ezinobushushu obuphakathi bokusebenza obuyi -100 ℃ ≤ t ≤ -40 ℃.
Iivalvu zobushushu obuphantsi kakhulu
Isetyenziselwa iivalvu ezinobushushu obuphakathi bokusebenza t < -100 ℃.
Ukuzibophelela koMvelisi weValve ye-NSW
Xa ukhetha iNkampani yaseNSW, awukhethi nje kuphela umthengisi weevalvu, kodwa sikwanethemba lokuba liqabane lakho lexesha elide nelithembekileyo. Sithembisa ukubonelela ngeenkonzo ezilandelayo