Ukoyisa ukuxhathisa kwentwasahlobo kwenza ivalvu ivuleke okanye ivalwe. Xa uxinzelelo oluphakathi kwisiphelo sokungenisa luphantsi kunesiphelo sokungenisa, ivalvu yokujonga ethe nkqo: ngenxa yoxinzelelo lwesixhobo esikwisiphelo sokungenisa sepayipi. Intwasahlobo ityhala umongo wevalvu kwisihlalo sevalvu ukuze ivale ivalvu, ithintele isixhobo ukuba singabuyeli umva, ngoko ke inomsebenzi wokungabuyi. Iivalvu zokujonga ezithe nkqo zisetyenziswa kakhulu kwimichiza, igesi yepetroleum emanzi, ulwelo kunye neminye imimandla. Ngokwesakhiwo sevalvu yokujonga, inokwahlulwa ibe ziintlobo ezintathu: ivalvu yokujonga i-lift, ivalvu yokujonga i-lift kunye nevalvu yokujonga ibhabhathane.
Ivalvu esetyenziselwa ukuthintela i-medium ukuba ingabuyeli umva ikwabizwa ngokuba yi-check valve, i-one-way valve, i-reverse flow valve, kunye ne-back pressure valve. Ivalvu yokukhangela luhlobo lwevalvu ezenzekelayo, umsebenzi wayo ophambili kukuthintela ukuhamba ngasemva kwe-medium, ukuthintela ipompo kunye ne-drive motor ukuba ingabuyeli umva, kunye nokukhutshwa kwe-container medium. Iivalvu zokukhangela zingasetyenziselwa ukubonelela ngemibhobho apho uxinzelelo lunokunyuka luye kwinkqubo encedisayo edlula uxinzelelo lwenkqubo. Iivalvu zokukhangela zingahlulwa zibe zii-swing check valves (ezijikeleza ngokweziko lomxhuzulane) kunye neevalvu zokuphakamisa (ezihamba nge-axis). Umsebenzi wolu hlobo lwevalvu kukuvumela kuphela i-medium ukuba ihambe kwicala elinye kwaye ithintele ukuhamba kwecala. Ngokwesiqhelo olu hlobo lwevalvu lusebenza ngokuzenzekelayo phantsi kwesenzo soxinzelelo lolwelo oluhamba kwicala elinye, i-valve flap iyavuleka; xa ulwelo luhamba kwicala elichaseneyo, uxinzelelo lolwelo kunye nokuzihambela kwe-valve flap kusebenza kwisihlalo sevalvu, ngaloo ndlela kunqunyulwa ukuhamba. Phakathi kwazo, ivalvu yokujonga umsonto wangaphakathi kunye nevalvu yokujonga ethe nkqo zibhekisa ekuvulekeni nasekuvalekeni ngokuzenzekelayo kwevalvu clack kuxhomekeke ekuhambeni kombane ngokwawo. Iivalvu zokujonga ezidityanisiweyo zezo hlobo lwevalvu, kubandakanya iivalvu zokujonga iswing kunye neevalvu zokujonga iphakamisa. Ivalvu yokujonga iswing inendlela yokunxibelelana yetyathanga kunye nediski yevalvu efana nocango oluhlala ngokukhululekileyo kumphezulu wesihlalo sevalvu esithambekileyo. Ukuqinisekisa ukuba ivalvu clack inokufikelela kwindawo efanelekileyo kumphezulu wesihlalo sevalvu ngalo lonke ixesha, ivalvu clack yenzelwe indlela yetyathanga ukuze ivalvu clack ibe nendawo eyaneleyo yokujika kwaye yenze ivalvu clack iqhagamshelane ngokupheleleyo nesihlalo sevalvu. Ivalvu clack ingenziwa ngesinyithi, isikhumba, irabha, okanye isigqubuthelo esenziwe ngokwenziwa sinokufakwa kwisinyithi, kuxhomekeke kwiimfuno zokusebenza. Xa ivalvu yokujonga iswing ivuliwe ngokupheleleyo, uxinzelelo lolwelo aluthintelwa, ngoko ke ukuhla koxinzelelo kwivalvu kuncinci kakhulu. Idiski yevalvu yevalvu yokujonga iphakamisa ihleli kumphezulu wokuvala wesihlalo sevalvu emzimbeni wevalvu. Ngaphandle kokuba idiski inokuphakanyiswa ize yehliswe ngokukhululekileyo, yonke enye ivalvu ifana nevalvu evaliweyo. Uxinzelelo lolwelo luphakamisa idiski kumphezulu wokuvala wesihlalo sevalvu, kwaye ukuhamba komoya ophakathi kubangela ukuba idiski iwele esihlalweni ize inqumle ukuhamba. Ngokwemiqathango yokusetyenziswa, idiski yevalvu inokuba yisakhiwo sesinyithi, okanye ingaba ngendlela yephedi yerabha okanye iringi yerabha efakwe kwisakhelo sediski. Njengevalvu yokumisa, ukuhamba kolwelo kwivalvu yokujonga ukuphakama nako kuncinci, ngoko ke ukuhla koxinzelelo kwivalvu yokujonga ukuphakama kukhulu kunevalvu yokujonga ukujika, kwaye ukuhamba kwevalvu yokujonga ukuphakama akuthintelwanga kangako.

INortech ngomnye wabavelisi beevalvu zoshishino abaphambili eTshayina abanesiqinisekiso somgangatho se-ISO9001.

Iimveliso eziphambili:Ivalvu yebhabhathane,Ivalvu yeBhola,Ivalvu yeSango,Jonga iValve,IGlobe Vavlve,Ii-Y-Strainers,Isixhobo sombane,Ii-Acurators ze-Pneumatic.