I-PVC Ball Valve vs Intsimbi Engagqwaliyo, Intsimbi Yekhabhoni - Indlela Yokukhetha

Ukukhetha iValve yeBhola echanekileyo: iPVC vs. iNtsimbi, iNtsimbi engatyiwayo, kunye neNtsimbi yeKhabhoni – Oko ndikufundileyo kweli candelo

Kwiminyaka eli-15 edlulileyo, nditshintshe iivalvu zebhola ezininzi kunokuba ndifuna ukuvuma. Kwaye inyani? Uninzi lokusilela lubangelwa yimpazamo enye: ukukhetha izinto ezingafanelekanga.Ivalvu yebhola yePVCingasebenza kakuhle kwi-skid yokulinganisa iikhemikhali - kodwa yibeke kumgca womphunga, kwaye uya kuba nomxube onyibilikisiweyo kwimizuzu elishumi. Kwelinye icala,ivalvu yebhola yentsimbi yekhabhoniIqinile kwaye ingabizi kakhulu, kodwa yishiye ngaphandle emvuleni kangangexesha elithile, kwaye iya kujongeka njengeankile enomhlwa.

Ngoko ke mandikucacisele into endiyicingayo xa ndikhetha phakathiI-PVC, intsimbi ngokubanzi, yenziwe ngentsimbi eshayinayokunyeiivalvu zebhola zentsimbi yekhabhoniAkukho nto imbi. Yinto esebenzayo, yintoni engasebenziyo, kwaye ndibone abantu betsha phi.

Ivalvu yebhola yePVC: Ilungele iikhemikhali, ayisebenzi kubushushu

Ndakha ndanceda ivenkile encinci yokucoca iipleyiti ukuze isebenze ngokuzenzekelayo. Babefuna i-asidi engabizi kakhulu, ngoko sasebenzisa i-Ivalvu yebhola yePVCngeenjongo ze-true-union. Oko kwakuyiminyaka emihlanu eyadlulayo - isasebenza. Ngoba? Kuba i-PVC ayikhathali nge-hydrochloric acid okanye i-sodium hypochlorite. Phantse ayichaphazeleki ziikhemikhali ezininzi ezirhabaxa.

Oko ndikuthandayo:

• Ukumelana nokugqwala okungenakunqotshwa ngexabiso.

• Ilula ngokwaneleyo ukubamba ngesandla esinye.

• Akukho ngxaki ze-galvanic xa uqhagamshelwe kwi-PVC okanye kwipayipi ye-CPVC.

Oko ndikuthiyileyo:

• Ubushushu. Ngaba kukho into engaphezulu kwe-140°F (60°C) kwaye ivalvu iyathamba. Ingaphantsi kwengqele? Iyaqhekeka. Ndibone ivalvu yePVC iqhekeka njengeglasi emva kokuqhawuka okungalindelekanga kwengqele.

• Uxinzelelo oluphantsi - yigcine ingaphantsi kwama-230 psi okanye ngaphezulu.

• Ukukhanya kwelanga kuyayibulala i-PVC eqhelekileyo. Ukuba uyisebenzisa ngaphandle, hlawula imali eyongezelelweyo nge-UV-stabilized.

Apho ndiyicacisa khona:

Unyango lwamanzi, umlinganiselo weekhemikhali, ukulima amachibi, imibhobho yamanzi echibini. Ungaze utshise, ungaze utshise ioyile, ungaze ucinezelwe umoya ongaphezulu kwe-150 psi.

Ivalvu yeBhola yeNtsimbi Engagqwaliyo – Ihashe Elisebenzayo (304 vs. 316)

Ukuba bendinokugcina uhlobo olunye lwevalvu kwilori yam, ibiya kuba yi-ivalvu yebhola yentsimbi engagqwaliyo. Kungcono i-316 stainless. Ngoba? Kuba iphatha phantse yonke into ngaphandle kwe-hydrochloric acid eshushu kunye nezinye izinto ezimbalwa ezinobungozi kakhulu.

Ndikhumbula isityalo sokutya esasihlala sitshintsha iivalvu zentsimbi yekhabhoni kwi-CIP eshushu (ecocekileyo endaweni). Iivalvu zaziza kugqwala ngaphakathi kwaye zingcolise imveliso. Sitshintshele kwiivalvu zebhola ezingenasici ezingama-316 - ingxaki iphelile. Umphezulu ogudileyo awubambi iintsholongwane, kwaye ukuhlamba okubangela umhlaza akuyonzakalisi.

Iingenelo onokuthembela kuzo:

• Amaqondo obushushu aqala kwi -20°F ukuya kwi-450°F (kunye nezihlalo ze-PTFE eziqhelekileyo). Iinguqulelo ezikhethekileyo zobushushu obuphezulu ziphezulu nangakumbi.

• Uvavanyo loxinzelelo olufikelela kwi-1,000–6,000+ psi kuxhomekeke kuyilo.

• I-316 SS ine-molybdenum – loo nto ngumhlobo wakho wamanzi olwandle okanye iindawo ezigcwele i-chloride.

Izinto ezingalunganga (intetho yokwenyani):

• Ixabiso liphezulu. Ivalvu yebhola ye-2” 316 ingabiza kahlanu ukuya kwi-10 ivalvu ye-PVC.

• Inzima. Izixhasi zakho zepayipi kufuneka zibe nomtsalane.

• I-304 stainless ingaqhekeka kwinkonzo ye-chloride eshushu - ndifunde ukuba yindlela enzima kwiprojekthi yaselunxwemeni. Sebenzisa i-316 kuyo nayiphi na into ekufutshane namanzi anetyuwa.

Umthetho wam:

Ukuba ulwelo luyatsha, lushushu, okanye kufuneka lucoceke (ukutya/ikhemesti), ndiyayeka ukusebenzisa i-stainless stain. Ukuba ixabiso alikho likhulu kwaye ulwelo alunamandla kakhulu, ndingacinga ngentsimbi yekhabhoni.

Ivalvu yeBhola yentsimbi yekhabhoni – Yomelele, ingabizi, kodwa iyagqwala

Masicacise: aivalvu yebhola yentsimbi yekhabhoniayisiyo-stainless stain. Ndibone iinjineli ezintsha zicinga ukuba “intsimbi yintsimbi” zize zibeke ivalvu yentsimbi yekhabhoni kumgca womoya omanzi. Emva kweenyanga ezintandathu, iyabanjwa okanye ivuza emzimbeni.

Oko kuthethiweyo, intsimbi yekhabhoni inendawo yayo - enkulu. Kwiifektri zokucoca ioyile, imibhobho yegesi yendalo, kunye neenkqubo zomphunga, intsimbi yekhabhoni yeyona iqhelekileyo ngesizathu. Iphatha uxinzelelo oluphezulu (ukuya kuthi ga kwi-1,500+ psi) kwaye amaqondo obushushu afikelela kwi-800°F ngokulungiswa okufanelekileyo.

Okulungileyo:

• Inamandla kakhulu kunePVC.

• Ixabiso liphantsi kune-stainless stainless.

• Iyashibilika, iyatshibilika, kulula ukuyifumana ngobukhulu obukhulu (ukuya kuthi ga kwi-48”).

Okubi (kwaye kubi):

• Umhlwa. Uchatshazelwe kukufuma, ukufuma, okanye nayiphi na i-asidi? Uza kubona imicu emdaka kwiiveki ezimbalwa.

• Ayifanelekanga kumanzi olwandle, i-chlorine, okanye ii-asidi.

• Intsimbi yekhabhoni eqhelekileyo iyaphuka ngaphantsi kwe -20°F – nditsale iivalvu ezaphukileyo kwifriji. Sebenzisa amazinga obushushu obuphantsi (LF2) ukuba kuyabanda.

Apho ndiyisebenzisa khona:

Igesi eyomileyo, ioyile yepetroli, umphunga (ogcweleyo okanye oshushu kakhulu), umoya ocinezelweyo owomileyo, kunye nemibhobho yamanzi omlilo egcinwa yomile okanye igqunywe ngaphakathi.

I-General Steel Ball Valve - kuthetha ukuthini oko?

Igama elithileivalvu yebhola yentsimbiayicacanga. Ngamanye amaxesha ithetha intsimbi yekhabhoni. Ngamanye amaxesha yintsimbi engenamthungo kangako njengentsimbi eyenziwe nge-A105. Kwaye ngamanye amaxesha - lumka - yivalvu yentsimbi eyenziwe ngexabiso eliphantsi enomgangatho ongathandabuzekiyo.

Ndiyiphatha ngokubanzi "ivalvu yebhola yentsimbi" njengohlobo olungabizi kakhulu lwentsimbi yekhabhoni. Ilungile kwiindlela ezingaboliyo, ezisetyenziswa ngoxinzelelo oluphantsi ukuya koluphakathi. Cinga nge-300–1,500 psi, amaqondo obushushu angaphantsi kwama-400°F, amanzi acocekileyo okanye ioyile. Kodwa ukuba unobungozi bokubola, yiya kwi-stainless okanye ubuncinci ucele uhlobo olufakwe i-epoxy.

Umzekelo omnye: inkqubo yokufudumeza impahla yokugcina impahla esebenzisa amanzi ashushu. Basebenzise iivalvu zentsimbi eziqhelekileyo ezingenayo i-lining. Emva kweminyaka emibini, kwavela ukuvuza kwemingxuma. Kwatshintshwa ngethusi (okanye i-stainless) kwaye kwayisombulula. I-Moral: yazi ukuba lithetha ukuthini ngokwenene igama elithi "intsimbi".

Indlela Endikhetha Ngayo Ngokwenene - Ukuhamba Kwezigqibo Ezilula

Libala iitafile ezinde okomzuzwana. Nantsi into efika engqondweni yam xa umntu ecela ingcebiso yevalvu yebhola:

1. Yintoni ulwelo?

   • I-asidi, i-caustic, amanzi anetyuwa, i-chlorine →I-PVC(ukuba iqondo lobushushu lingaphantsi kwe-140°F) okanye316 engenasici(ukuba kushushu/kuxinzelelo oluphezulu).

   • Ioyile, igesi, umphunga owomileyo →Intsimbi yekhabhoniokanye intsimbi ngokubanzi.

   • Ukutya, ibhiya, amayeza →Yenziwe ngentsimbi eshayinayo, akukho mathandabuzo.

2. Kushushu kangakanani?

   • Ngaphezulu kwe-140°F? Akukho PVC.

   • Ngaphezulu kwama-450°F? Izitulo ezisemgangathweni ezingenasici (PTFE) ziyasilela. Udinga intsimbi yekhabhoni enezihlalo ezikhethekileyo (PEEK, metal).

   • Ngaphantsi kwama-32°F? I-PVC iyaphuka - sebenzisa intsimbi okanye i-stainless.

3. Uxinzelelo olungakanani?

   • Ngaphezulu kwe-230 psi → libale i-PVC.

   • Ngaphezulu kwe-1,500 psi → intsimbi yekhabhoni okanye i-stainless eyenziwe ngomatshini.

4. Indawo engaphandle okanye emanzi?

   • Imvula, ukufuma, unxweme → sebenzisa i-stainless (316 ukuba ikufutshane netyuwa). Intsimbi yekhabhoni iya kugqwala ngokukhawuleza ngaphandle kokuba ipeyintwe ngokugqibeleleyo kwaye ichukunyiswe rhoqo.

5. Ukuhlolwa kwemeko yohlahlo-lwabiwo mali

   • I-PVC ibiza kancinci kodwa incinci.

   • Intsimbi yekhabhoni yeyolandelayo – ixabiso elifanelekileyo kwiinkonzo ezomileyo.

   • I-stainless steel ibiza kakhulu kodwa ihlala iminyaka emininzi. Nditshintshe iivalvu ze-stainless steel ezineminyaka engama-30 ubudala ebezisasebenza kakuhle.

Itheyibhile yokuthelekisa ngokukhawuleza (Iphepha lokukhohlisa leNjineli)

Izifundo ezimbalwa ezivela kwiSikolo se-Hard Knocks

• Musa ukuxuba iintsimbi ngaphandle kokucinga.Ukuba uqhagamshela ivalvu yebhola yentsimbi engagqwaliyo kumbhobho wentsimbi yekhabhoni kwinkqubo emanzi, uya kufumana i-galvanic corrosion kwimisonto. Sebenzisa ii-dielectric unions.

• Imisonto yePVC ibuthathaka.Ndibone iivalvu zebhola zePVC eziqiniswe kakhulu ziqhekeka kanye kwindawo eqhagamshelweyo. Sebenzisa iteyiphu yePTFE uze uyeke xa iqinile – hayi “i-gorilla tight.”

• Soloko ujonga izinto zesihlalo.Ivalvu yebhola yentsimbi engagqwaliyo enezihlalo zeBuna-N ayizukumelana nobushushu obuphezulu, nokuba umzimba uyanyamezela. I-PTFE (Teflon) yeyona ikhuselekileyo.

• Gcina enye eyongezelelweyo.Ndilinde iiveki ezintandathu ukuze ndifumane ivalvu yebhola ekhethekileyo ye-alloy. Ukuba yinkqubo ebalulekileyo, gcina enye - ingakumbi kwintsimbi engatyiwayo okanye yekhabhoni ngobukhulu obungaqhelekanga.

Ukuthatha kokugqibela

Akukho valve yebhola yendalo yonke.Ivalvu yebhola yePVCiphumelela kwixabiso kunye nokumelana neekhemikhali - kodwa kuphela ukuba uhlala upholile kwaye uphantsi koxinzelelo.ivalvu yebhola yentsimbi engagqwaliyoyeyona nto ndiyithandayo kuyo nayiphi na into enoburhalarhume, eshushu, okanye ecocekileyo.ivalvu yebhola yentsimbi yekhabhoniisengukumkani weendawo zokucoca inkunkuma kunye negesi enoxinzelelo oluphezulu. Kwaye i-genericivalvu yebhola yentsimbiKulungile kwimisebenzi elula, kodwa funda umbhalo ocacileyo.

Xa ungaqinisekanga, bhala phantsi ubushushu bakho obuphezulu, ubushushu obuphantsi, ulwelo oluqulethwe kulo, kunye noxinzelelo. Emva koko fowunela umsasazi ubuze “ubungayifaka ntoni kwipompo yakho?” Uninzi luya kukunika impendulo enyanisekileyo – kwaye loo mpendulo idla ngokuquka ivalvu yebhola yentsimbi engagqwaliyo ukuba uhlahlo lwabiwo-mali luyavuma.

Ngaba une-application enzima? Lahla iinkcukacha ezingezantsi – ndiza kukuxelela into endingayisebenzisayo, kwaye okubaluleke ngakumbi, into endiyibonileyo ayiphumelelanga.