Ukhetha ivalve yenkqubo entsha. Ukuchola enye engakwaziyo ukumelana noxinzelelo lomgca kunokukhokelela kuqhushumbo oluyintlekele, okubangela izandyondyo zemvula, umonakalo wepropathi, kunye nexesha elibiza imali eninzi.

Ivalve yebhola ye-PVC eqhelekileyo inikwe i-150 PSI (iiponti nge-Inch yesikwere) kwi-73 ° F (23 ° C). Olu qondo loxinzelelo lwehla kakhulu njengoko ubushushu obumanzi bukhula, ke kufuneka usoloko ujonga idatha yomenzi.

Le yenye yezona nkcukacha zibalulekileyo zobuchwephesha endixoxa ngazo namaqabane afana noBudi. Ukuqondaukukala uxinzeleloayikokufunda nje inani; imalunga nokuqinisekisa ukhuseleko nokuthembeka kubathengi bakhe. Xa iqela likaBudi linokucacisa ngokuzithemba ukuba kutheni a150 ivalve yePSIigqibelele kwinkqubo yokunkcenkceshela kodwa hayi kumgca wolwelo olushushu, basuka ekubeni ngabathengisi baye kubacebisi abathembekileyo. Olu lwazi luthintela ukusilela kwaye lwakha ubudlelwane bexesha elide, lokuphumelela olusisiseko seshishini lethu ePntek.

Uxinzelelo olungakanani iPVC ikalelelwe?

Umxhasi wakho ucinga ukuba onke amalungu ePVC ayafana. Le mpazamo eyingozi ingabakhokelela ekusebenziseni umbhobho ophantsi ophantsi kunye ne-valve ephezulu, ukudala ibhomu yexesha lokuphawula kwinkqubo yabo.

Iqondo loxinzelelo lwePVC lixhomekeke kubukhulu bodonga lwayo (iShedyuli) kunye nobubanzi. Umbhobho oqhelekileyo weShedyuli ye-40 unokusuka kwi-PSI ye-400 kwiisayizi ezincinci ukuya ngaphantsi kwe-200 ye-PSI enkulu.

Yimpazamo eqhelekileyo ukucinga ukuba inkqubo inikwe i-150 PSI ngenxa yokuba ivalve yebhola. Ndihlala ndigxininisa kuBudi ukuba yonke inkqubo yomelele njengeyona ndawo ibuthathaka. Iqondo loxinzelelo lwePVCumbhobhoyahlukile kwivalve. Ichazwa yi "Shedyuli" yayo, ebhekisa kubunzima bodonga.

• Ishedyuli 40:Lo bubunzima bodonga olusemgangathweni kuninzi lwemibhobho yamanzi kunye nokunkcenkceshela.
• IShedyuli 80:Lo mbhobho unodonga olungqingqwa kakhulu kwaye, ngenxa yoko, inqanaba loxinzelelo oluphezulu kakhulu. Ihlala isetyenziswa kwimizi-mveliso.

Into ephambili yokuthathwa kukuba ukulinganiswa koxinzelelo kuyatshintsha kunye nobukhulu bombhobho. Nalu uthelekiso olulula lweShedyuli yama-40 yombhobho ku-73°F (23°C):

Inkqubo ene-4 ″ Sch 40 yombhobho kunye neevalvu zethu zebhola eziyi-150 zePSI inoxinzelelo oluphezulu lokusebenza lwe-150 PSI. Kufuneka usoloko uyila elona candelo linomlinganiselo ophantsi.

Ithini iqondo loxinzelelo lwevalve yebhola?

Ubona ivalve yobhedu elinganiselwe kwi-600 PSI kunye nevalve ye-PVC ye-150 PSI. Ukungaqondi ukuba kutheni bohlukile kunokwenza kube nzima ukuthethelela ukukhetha owulungeleyo umsebenzi.

Iqondo loxinzelelo lwevalve yebhola limiselwa yimathiriyeli kunye nolwakhiwo. Iivalvu ze-PVC ziqhele ukuba yi-150 PSI, ngelixa iivalvu zesinyithi ezenziwe ngobhedu okanye intsimbi zinokulinganiselwa kwi-600 PSI ukuya kwi-3000 PSI.

Igama elithile"ivalve yebhola"ichaza umsebenzi, kodwa amandla oxinzelelo avela kwizinto eziphathekayo. Yimeko eqhelekileyo yokusebenzisa isixhobo esifanelekileyo somsebenzi. Kubathengi bakhe, iqela likaBudi kufuneka libakhokele ngokusekelwe kwisicelo.

Imiba ephambili emisela umlinganiselo woxinzelelo:

1. Izinto zoMzimba:Lo ngowona mba mkhulu. I-PVC yomelele, kodwa intsimbi yomelele. Ubhedu lukhetho oluqhelekileyo lokuhlala kwamanzi ashushu kunye nezicelo zenjongo jikelele ukuya kuthi ga kwi-600 PSI. Intsimbi yeCarbon kunye nensimbi engenasici isetyenziselwa iinkqubo zoshishino eziphezulu zoxinzelelo apho uxinzelelo lunokuba ngamawaka e-PSI.
2. Isitulo kunye neMathiriyeli yokutywina:Iindawo “ezithambileyo” ngaphakathi kwevalve, njengezihlalo zePTFE ezisetyenziswa ziivalvu zethu zePntek, nazo zinemida yoxinzelelo kunye nobushushu. Kufuneka babe nako ukwenza itywina ngaphandle kokukhubazeka okanye ukutshatyalaliswa luxinzelelo lwenkqubo.
3. Ulwakhiwo:Indlela umzimba wevalvu odityaniswe ngayo nawo udlala indima ekomeleleni kwawo.

A Iivalve zePVCI-150 PSI rating ingaphezulu kokwaneleyo kuninzi lwamanzi asetyenzisiweyo enzelwe wona, njengokunkcenkceshela, amadama, kunye nemibhobho yokuhlala.

Yintoni umlinganiselo woxinzelelo lwevalvu?

Ubona “150 PSI @ 73°F” kumzimba wevalvu. Ukuba ugxininise kuphela kwi-PSI ye-150 kwaye ungayihoyi iqondo lokushisa, unokufaka i-valve kumgca apho uqinisekisiwe ukuba awuphumeleli.

Umgangatho woxinzelelo lwevalve lolona xinzelelo luphezulu olukhuselekileyo lokusebenza ivalve inokusingatha kwiqondo lobushushu elithile. Kwiivalvu zamanzi, oku kudla ngokubizwa ngokuba yi-Cold Working Pressure (CWP).

Le nkcazo-mbini-uxinzeleloatiqondo lobushushu—yeyona ngcamango ibalulekileyo yokufundisa. Ubudlelwane bulula: njengoko ubushushu bukhuphuka, amandla ezinto zePVC ahla, kwaye kunjalo noxinzelelo lwawo. Oku kubizwa ngokuba "yi-de-rating." Iivalvu zethu zePntek zilinganiswe kwi-150 PSI kwindawo yobushushu obuqhelekileyo begumbi. Ukuba umthengi wakho uzama ukusebenzisa kwaloo valve kumgca onamanzi angama-120°F (49°C), uxinzelelo olukhuselekileyo anokuluphatha lunokwehla nge-50% okanye ngaphezulu. Wonke umenzi ohloniphekileyo unikezela ngetshati yokunciphisa ukulinganisa ebonisa uxinzelelo oluphezulu oluvumelekileyo kumaqondo aphezulu. Ndiye ndaqinisekisa ukuba uBudi unazo ezi tshathi zazo zonke iimveliso zethu. Ukungahoyi olu budlelwane yeyona nto ibangela ukusilela kwezinto kwiinkqubo zemibhobho ye-thermoplastic.

Ithini iqondo loxinzelelo lwevalve yebhola yeClass 3000?

Umthengi wefektri ucela “Ivalve ye-3000″. Ukuba awuyazi ukuba ithetha ukuthini le nto, ungazama ukufumana i-PVC elingana nayo, engekhoyo, kwaye ibonisa ukunqongophala kobuchule.

I-valve yebhola ye-Class 3000 yi-valve ye-industrial-high-pressure ye-industrial eyenziwe ngentsimbi ekhandiweyo, ilinganiswe ukuphatha i-3000 PSI. Olu ludidi olwahluke ngokupheleleyo kwiivalvu zePVC kwaye lusetyenziselwa ioli kunye negesi.

Lo mbuzo unceda ukudweba umgca ocacileyo kwisanti yokusetyenziswa kwemveliso. "Iiklasi" zokulinganisa (umzekelo, iKlasi ye-150, i-300, i-600, i-3000) iyingxenye yomgangatho othile we-ANSI / ASME osetyenziselwa iiflange zoshishino kunye neevalvu, phantse zihlala zenziwe ngesinyithi. Le nkqubo yokulinganisa inzima kakhulu kunokulinganisa kwe-CWP kwivalve ye-PVC. AIklasi ye-3000 valveayenzeli nje uxinzelelo oluphezulu; yenzelwe amaqondo obushushu agqithisileyo kunye neemekobume ezirhabaxa ezifana nezo zifumaneka kwishishini leoli negesi. Yimveliso ekhethekileyo exabisa amakhulu okanye amawaka eedola. Xa umthengi ecela oku, basebenza kwishishini elithile elingafanelekanga kwiPVC. Ukwazi oku kuvumela iqela likaBudi ukuba lichonge ngokukhawuleza isicelo kwaye liphephe ukucaphula emsebenzini apho iimveliso zethu zinokusetyenziswa gwenxa ngokuyingozi. Iqinisa ubuchwephesha ngokwazi into oyiyomusathengisa, kangangoko wenza.

Ukuqukumbela

Iqondo loxinzelelo lwevalve yebhola ye-PVC lihlala li-150 PSI kwiqondo lobushushu begumbi, kodwa oku kuyehla njengoko ubushushu bunyuka. Soloko udibanisa ivalve kuxinzelelo lwenkqubo kunye neemfuno zobushushu.