Iivalvu ze-iron kunye ne-ductile iron butterfly zisetyenziswa ngokubanzi kulawulo lokuhamba kumashishini ahlukeneyo, kodwa ziyahluka kwizinto eziphathekayo, ukusebenza kunye nokusetyenziswa. Apha ngezantsi kukho uthelekiso oluneenkcukacha ukukunceda uqonde umahluko kwaye ukhethe ivalve eyilungele iimfuno zakho.
1. Ukubunjwa kwezinto
1.1 Ivalufa ye-Iron Butterfly:
- Intsimbi ye-Grey cast, i-alloy yensimbi enomxholo ophezulu wekhabhoni (2-4%).
- Ngenxa ye-microstructure yayo, ikhabhoni ikhona ngendlela ye-flake graphite. Esi sakhiwo sibangela ukuba loo nto itshatyalaliswe ecaleni kweeflakes zegraphite ngenxa yoxinezeleko, nto leyo eyenza ibe mnkumle kwaye ingabi bhetyebhetye.
- Ngokuqhelekileyo isetyenziswe kwi-low-pressure kunye nezicelo ezingabalulekanga.
1.2 IValve ye-Iron Butterfly ye-Ductile:
- Yenziwe kwi-iron ductile (eyaziwa nangokuthi i-nodular graphite cast iron or ductile iron), iqulethe ixabiso elincinci le-magnesium okanye i-cerium, ehambisa i-graphite kwi-spherical (nodular) shape. Olu lwakhiwo luphucula kakhulu ukuductility kunye nokuqina kwesixhobo.
-Yomelele, ibhetyebhetye ngakumbi, kwaye ayithandeki kakhulu ekuqhekezeni intsimbi kunentsimbi.
2. IiPropati zoomatshini
2.1 Intsimbi yentsimbi engwevu:
- Amandla: Amandla okuqina aphantsi (ngokuqhelekileyo i-20,000–40,000 psi).
-I-Ductility: I-Brittle, ithande ukudinwa kukuqhekeka phantsi koxinzelelo okanye impembelelo.
-Ukuchasana neMpembelelo: Iphantsi, ithanda ukuphuka phantsi kwemithwalo yequbuliso okanye ukothuka kwe-thermal.
- Ukumelana nokuMhlwa: Kuphakathi, kuxhomekeke kwindawo kunye nokwaleka.
2.2 Intsimbi yentsimbi:
- Amandla: I-graphite ye-Spherical inciphisa amanqaku oxinzelelo, okubangela amandla aphezulu aphezulu (ngokuqhelekileyo i-60,000-120,000 psi).
-I-Ductility: I-ductile eninzi, ivumela i-deformation ngaphandle kokuqhekeka.
-Ukuchasana neMpembelelo: Kugqwesileyo, kubhetele ukumelana nokothuka kunye nokungcangcazela.
- Ukumelana nokuNgxwala: Kuyafana nentsimbi ekhandiweyo, kodwa inokuphuculwa ngeengubo okanye iileyile.
3. Ukusebenza kunye noKuhlala ixesha elide
3.1 Phosa iiValufa ze-Iron Butterfly:
- Ifanelekile kwizicelo zoxinzelelo oluphantsi (umzekelo, ukuya kuthi ga kwi-150-200 psi, kuxhomekeke kuyilo).
- Indawo yokunyibilika ephezulu (ukuya kuthi ga kwi-1150 ° C) kunye ne-thermal conductivity egqwesileyo (efanelekile kwi-vibration damping applications, efana ne-braking systems).
-Ukuxhathisa okungalunganga kuxinzelelo oluguquguqukayo, okubenza bangafaneleki ukushukuma okuphezulu okanye indawo yokulayisha umjikelo.
- Ngokuqhelekileyo bunzima, obunokunyusa iindleko zofakelo.
3.2 IiValufa ze-Iron Butterfly zentsimbi:
- Ukwazi ukuphatha uxinzelelo oluphezulu (umzekelo, ukuya kwi-300 psi okanye ngaphezulu, kuxhomekeke kuyilo).
- Ngenxa yamandla ayo aphezulu kunye nokuguquguquka, i-iron ductile ayinakwenzeka ukuba iphuke phantsi kokugoba okanye impembelelo, endaweni yoko ikhubaze iplastiki, ihambelana nomgaqo "woyilo" wezinto zanamhlanje zesayensi. Oku kuyenza ifaneleke ngakumbi kwizicelo ezifunwayo.
-Ihlala ixesha elide kwindawo enokuguquguquka kobushushu okanye uxinzelelo lomatshini.
4. Iimeko zesicelo
4.1 Phosa iiValufa ze-Iron Butterfly:
- Ngokuqhelekileyo isetyenziswa kwiinkqubo zeHVAC.
- Isetyenziswa kwiinkqubo ezingabalulekanga apho iindleko ziphambili. - Ifaneleka kwi-low-pressure fluids njengamanzi, umoya, okanye i-non-corrosive gases (i-chloride ion <200 ppm).
4.2 IiValufa ze-Iron Butterfly zentsimbi:
- Ifanele unikezelo lwamanzi kunye nokunyangwa kwamanzi amdaka kunye nokungathathi hlangothi okanye ubuthathaka be-acidic / alkaline media (pH 4-10).
- Ifanelekile kwizicelo zemizi-mveliso, kubandakanywa ioli kunye negesi, ukulungiswa kweekhemikhali, kunye neenkqubo zoxinzelelo lwamanzi aphezulu.
- Isetyenziswe kwiinkqubo ezifuna ukuthembeka okuphezulu, njengeenkqubo zokukhusela umlilo okanye iipayipi ezinoxinzelelo oluguquguqukayo.
- Ilungele ulwelo oludlekayo xa lusetyenziswa kunye nelinen efanelekileyo (umz., EPDM, PTFE).
5. Iindleko
5.1 Intsimbi yokuphosa:
Ngenxa yenkqubo yayo yokuvelisa elula kunye neendleko eziphantsi zezinto eziphathekayo, ngokuqhelekileyo amaxabiso aphantsi. Ilungele iiprojekthi ezinohlahlo lwabiwo-mali olunyiniweyo kunye neemfuneko ezingabizi kakhulu. Ngelixa i-iron etyhidiweyo ingabizi, i-brittleness yayo ikhokelela ekutshintsheni rhoqo kunye nokunyuka kwenkunkuma.
5.2 Intsimbi yentsimbi:
Ngenxa yenkqubo ye-alloying kunye nokusebenza okuphezulu, ixabiso liphezulu. Kwizicelo ezifuna ixesha elide kunye namandla, ixabiso eliphezulu liyathetheleleka. I-Ductile iron ihambelana nokusingqongileyo ngenxa yokusetyenziswa kwayo kwakhona okuphezulu (>95%).
6. Imigangatho kunye neNgcaciso
- Zombini iivalvu zihambelana nemigangatho efana ne-API 609, i-AWWA C504, okanye i-ISO 5752, kodwa iivalve zentsimbi ezidonsayo zihlangabezana neemfuno eziphezulu zeshishini loxinzelelo kunye nokuqina.
-Iivalvu zentsimbi ezirhuqwayo zisetyenziswa ngokuxhaphakileyo kwizicelo ezifuna ukuthotyelwa kwemigangatho yoshishino olungqongqo.
7. Ukonakala kunye noLondolozo
- Zombini izinto eziphathekayo ziyakwazi ukubola kwiindawo ezinzima, kodwa amandla aphezulu e-iron ductile enza ukuba isebenze ngcono xa idibene neengubo zokukhusela ezifana ne-epoxy okanye i-nickel coatings.
-Iivalvu zentsimbi zinokufuna ulondolozo oluthe kratya kwindawo ezonakalisayo okanye ezinoxinzelelo oluphezulu.
8. Itheyibhile yesishwankathelo
| Uphawu | Cast Iron Butterfly Valve | IValve ye-Iron Butterfly eDuctile |
| Izinto eziphathekayo | Intsimbi engwevu, ibhityile | Intsimbi ye-nodular, i-ductile |
| Tensile strength | 20,000–40,000 psi | 60,000–120,000 psi |
| I-Ductility | Iphantsi, i-brittle | Phezulu, bhetyebhetye |
| Ixabiso loxinzelelo | Phantsi (150–200 psi) | Phezulu (300 psi okanye ngaphezulu) |
| Ukuchasa impembelelo | Ihlwempu | Egqwesileyo |
| Usetyenziso | I-HVAC, amanzi, iinkqubo ezingabalulekanga | I-oyile / igesi, ikhemikhali, ukukhusela umlilo |
| Iindleko | Ngasezantsi | Phezulu |
| Ukunyangwa kokuMhlwa | Ephakathi (eneengubo zokwaleka) | Iphakathi (ngcono ngeengubo) |
9. Ukukhetha njani?
- Khetha ivalve yentsimbi yebhabhathane ukuba:
- Udinga isisombululo esinexabiso eliphantsi, izicelo ezingabalulekanga ezifana nokubonelela ngamanzi okanye i-HVAC.
- Inkqubo isebenza kwindawo ezinzileyo kunye noxinzelelo oluncinci okanye ukungcangcazela.
- Khetha ivalve yebhabhathane yentsimbi ukuba:
-Usetyenziso lubandakanya uxinzelelo oluphezulu, imithwalo eguqukayo, okanye ulwelo oludlekayo.
- Ukuqina, ukuxhathisa impembelelo, kunye nokuthembeka kwexesha elide zizinto eziphambili.
- Isicelo sidinga iinkqubo zoshishino okanye ezibalulekileyo ezifana nokukhuselwa komlilo okanye ukulungiswa kweekhemikhali.
10. Ingcebiso ye-valve ye-ZFA
Njengomvelisi onamava eminyaka emininzi kwiivalve zebhabhathane, i-ZFA Valve incoma i-iron ductile. Ayisebenzi nje kuphela kakuhle, kodwa i-valve ye-butterfly ye-iron i-ductile iphinda ibonise ukuzinza okungaqhelekanga kunye nokulungelelaniswa kweemeko eziyinkimbinkimbi kunye nokutshintsha iimeko zokusebenza, ukunciphisa ngokufanelekileyo ukuphindaphinda kokugcinwa kunye neendleko zokutshintshwa, okubangelwa iindleko eziphezulu zeendleko kwixesha elide. Ngenxa yokwehla kwemfuno yentsimbi engwevu, izivalo zebhabhathane zentsimbi ziyaye zicinywe kancinci kancinci. Ukusuka kwimbono yempahla ekrwada, ukunqongophala kuya kusiba nexabiso.