Kwinkqubo yemibhobho yamanzi, i-valve yinto yokulawula, umsebenzi wayo oyintloko kukwahlula izixhobo kunye nenkqubo yombhobho, ukulawula ukuhamba, ukuthintela ukubuya umva, ukulawula kunye nokukhupha uxinzelelo.
Iivalvu zingasetyenziselwa ukulawula ukuhamba komoya, amanzi, umphunga, imithombo yeendaba eyonakalisayo, udaka, i-oyile, isinyithi esilulwelo kunye nemidiya ye-radioactive kunye nezinye iintlobo zolwelo.Njengoko inkqubo yepayipi yokukhetha eyona valve ifanelekileyo ibaluleke kakhulu, ngoko ke, ukuqonda iimpawu zevalve kunye nokukhethwa kwamanyathelo evalve kunye nesiseko kubaluleke kakhulu.
Ukuhlelwa kweevalvu:
Enye, ivalve inokwahlulwa ibe ngamacandelo amabini:
Uhlobo lokuqala lwevalve oluzenzekelayo: thembela kumbindi (ulwelo, igesi) isakhono sayo kunye nesenzo sayo sevalve.
Njengevalve yokukhangela, ivalve yokhuseleko, ivalve elawulayo, ivalve yomgibe, ivalve yokunciphisa njalo njalo.
Uhlobo lwesibini lwevalve yokuqhuba: manual, electric, hydraulic, pneumatic ukulawula isenzo sevalve.
Okufana nevalve yesango, ivalve yeglowubhu, ivalve ye-throttle, ivalve yebhabhathane, ivalve yebhola, ivalve yeplagi njalo njalo.
Emibini, ngokweempawu zolwakhiwo, ngokwesalathiso seendawo zokuvala ezihambelana nentshukumo yesitulo sevalve inokwahlulwa:
1. Imilo yokuvala: inxalenye yokuvala ihamba embindini wesihlalo;
2. Ubume besango: indawo yokuvala ihamba embindini wesihlalo esithe nkqo;
3. Iqhude kunye nebhola: inxalenye yokuvala yi-plunger okanye ibhola, ejikelezayo kumgca wayo ophakathi;
4. Ubume be-Swing: iindawo zokuvala zijikeleza i-axis ngaphandle kwesihlalo;
5. I-Disc: i-disc yeendawo ezivaliweyo zijikeleza kwi-axis yesihlalo;
6. Ivalve yesilayidi: inxalenye yokuvala isilayidi kwicala le-perpendicular kumjelo.
Ezintathu, ngokusetyenziswa, ngokweendlela ezahlukeneyo zevalve zinokwahlulwa:
1. Ukusetyenziswa kokuqhawula: esetyenziselwa ukufaka okanye ukusika umbhobho ophakathi, onjengevalve yeglowubhu, ivalve yesango, ivelufa yebhola, ivelufa yebhabhathane, njl.
2. Khangela: isetyenziselwa ukuthintela ukubuyela umva kwemidiya, njengeevalve zokujonga.
Ummiselo we-3: isetyenziselwa ukulungelelanisa uxinzelelo kunye nokuhamba kwe-medium, njenge-valve yokulawula, i-valve yokunciphisa uxinzelelo.
4. Ukusabalalisa: kusetyenziselwa ukutshintsha ukuhamba kwe-medium, medium distribution medium, njenge-cock yeendlela ezintathu, i-valve yokusabalalisa, i-valve yesilayidi, njl.
Ivalve yokhuseleko ye-5: xa uxinzelelo oluphakathi ludlula ixabiso elichaziweyo, lisetyenziselwa ukukhupha i-medium engaphezulu ukuqinisekisa ukhuseleko lwenkqubo yombhobho kunye nezixhobo, ezifana nevalve yokhuseleko kunye nevalve yengozi.
6.Olunye usetyenziso olukhethekileyo: njenge-valve yomgibe, i-valve ye-vent, i-valve ye-sewage, njl.
7.Four, ngokwendlela yokuqhuba, ngokwendlela eyahlukileyo yokuqhuba inokwahlulwa:
1. Incwadi: ngoncedo lwevili lesandla, umqheba, i-lever okanye i-sprocket, njl., ngokuqhuba komntu, qhuba i-torque fashion worm gear enkulu, igiya kunye nesinye isixhobo sokunciphisa.
2. Umbane: uqhutywa yinjini okanye esinye isixhobo sombane.
3. Hydraulic: Ukuqhuba ngoncedo lwe (amanzi, ioli).
4. I-pneumatic: iqhutywa ngumoya oxinanisiweyo.
Ezintlanu, ngokoxinzelelo, ngokoxinzelelo oluqhelekileyo lwevalve lunokwahlulwa:
1. I-valve ye-vacuum: uxinzelelo olupheleleyo < I-Valves enobude be-0.1mpa, okanye i-760mm hg, idla ngokuboniswa nge-mm hg okanye ikholomu yamanzi.
2. Ivalve yoxinzelelo oluphantsi: uxinzelelo lwegama PN≤ 1.6mpa valve (kubandakanya i-PN≤ 1.6mpa ivalve yentsimbi)
3. Ivalve yoxinzelelo oluphakathi: uxinzelelo lwegama PN2.5-6.4mpa valve.
4. Ivalve yoxinzelelo oluphezulu: uxinzelelo lwegama PN10.0-80.0mpa valve.
5. Ivalve ephezulu yoxinzelelo oluphezulu: uxinzelelo lwegama PN≥ 100.0mpa valve.
Ezintandathu, ngokweqondo lobushushu eliphakathi, ngokwevalve esebenzayo ubushushu obuphakathi bunokwahlulwa:
1. Ivalve eqhelekileyo: ilungele ubushushu obuphakathi -40℃ ~ 425℃ ivalve.
2. Ivalve yobushushu obuphezulu: ilungele ubushushu obuphakathi 425℃ ~ 600℃ ivalve.
3. Ivalve ekwazi ukumelana nobushushu: ilungele ubushushu obuphakathi ngaphezu kwe-600℃ ivelufa.
4. Ivalve yobushushu obuphantsi: ilungele ubushushu obuphakathi -150℃ ~ -40℃ ivalve.
5. Ivalve yobushushu obuphantsi kakhulu: ilungele ubushushu obuphakathi ngaphantsi kwe -150℃ ivelufa.
Isixhenxe, ngokwe-diameter ye-nominal, ngokwe-diameter ye-valve inokwahlulwa:
1. Ivalve yedayamitha encinci: i-diameter ye-nominal DN< 40mm valve.
2. Ivalve yedayamitha ephakathi: ivalve yedayamitha ye-DN50 ~ 300mm.
3. Ivalve yedayamitha enkulu: i-diameter ye-DN350 ~ 1200mm ivalve.
4. Ivalve yedayamitha egqithisileyo: i-valve yedayamitha engu-DN≥1400mm.
Viii.Inokwahlulwa ngokwendlela yoqhagamshelo lwevalve kunye nombhobho:
1. Ivalve eneflange: umzimba wevalvu eneflange, kunye nombhobho onevalve eneflange.
2. Ivalve yoqhagamshelo olunemisonto: umzimba wevalve onentambo yangaphakathi okanye intambo yangaphandle, ivalve yoqhagamshelo enemibhobho.
3. Ivalve yodibaniso oludityanisiweyo: umzimba wevalve oneentsimbi, kunye nemibhobho enevalve ezidityanisiweyo.
4. Ivalve yoqhagamshelo lweclamp: umzimba wevalve onesibambeli, kunye nevalve yoqhagamshelo lombhobho.
5. I-valve yokudibanisa i-sleeve: i-valve idibene nomkhono kunye nombhobho.
Ixesha lokuposa: Nov-11-2021