Ukuvalwa okuthambile kanye nokuvalwa okuqinile kwe-valve yesango

1. Kuyini uphawu oluthambile nophawu oluqinile lwevalvu yesango?

Amavalvu esango avaliwe athambile asebenzisa izinto ezinwebekayo ezingezona ezensimbi njengerabha kanye ne-PTFE njengezimpawu, ezithambile futhi eziqinile kanye nesihlalo sevalvu yensimbi. Athembele ekuguqulweni kwe-elastic kwezinto zokuvala ukuze agcwalise igebe futhi afeze ukuvalwa, njengoba kuboniswe kuMfanekiso 01. Amavalvu esango avaliwe aqinile anesakhiwo sokuvala sensimbi yonke. Ubuso bokuvala buphansi futhi buphezulu nge-alloy eqinile, futhi ukuvalwa kufezwa ngokubopha kwensimbi, njengoba kuboniswe kuMfanekiso 02.

Umfanekiso 01 Umfanekiso 02

2. Uyini umehluko omkhulu phakathi kuka-tyakheezimbili?

Umehluko oyinhloko usezintweni zokuvala kanye nezimo zokusebenza ezisebenzayo. Izivalo ezithambile zinokunwebeka okuhle futhi zingafinyelela "ukuvuza okungekho", kodwa azimelani namazinga okushisa aphezulu kanye nokuguguleka. Izivalo eziqinile ziyamelana namazinga okushisa aphezulu, ukucindezela okuphezulu, kanye nokuguguleka, kodwa zinezindleko eziphezulu zokucubungula futhi kunzima ukufeza ukuvuza okungekho ngokuphelele.

3. Lingakanani izinga lokushisa eliphakeme kakhulu elitholakala ku-ivalvu yesango lokuvala elithambileingabe ingamelana?

Ngokuvamile, umkhawulo ophezulu wokushisa okusebenzayo kwezinto zokuvala ezithambile cishe u-120°C. Irabha evamile ye-EPDM cishe i-120℃, i-PTFE cishe i-200℃ (kodwa ingcindezi idinga ukuncishiswa). Uma izinto zokuvala zidlula leli banga, izinto zokuvala zizothamba, ziguge noma ziguge futhi zehluleke.

4. Ithiniamavalvu esango avaliwe ngokuqinileukufeza ukuvuza okungenalutho?

Izivalo zensimbi ezigayiwe kahle zingafinyelela amazinga aphezulu okuvuza (njenge-ANSI Level V noma i-Level VI), kodwa ngokuvamile kunzima ukufinyelela izinga le-bubble "lokuvuza okuphelele kwe-zero" njengezivalo ezithambile. Kodwa-ke, ezimweni zokusebenza ezinzima njengokushisa okuphezulu kanye nokucindezela okuphezulu, ukuvala okuqinile kuyindlela ethembekile kuphela.

5. Ungayikhetha kanjani uphawu oluthambile noma uphawu oluqinile?

Ngamafuphi: izivalo ezithambile zikhethwa ngenxa yezimo zokusebenza ezifana namanzi okushisa ajwayelekile, indle, kanye negesi okungadingi ukuvuza nhlobo kanye nemidiya ehlanzekile; izivalo eziqinile zikhethwa ngenxa yezimo zokusebenza zezimboni ezihilela umusi okushisa okuphezulu, uwoyela ocindezelwe kakhulu, izinhlayiya, noma imithombo ebolile.

6. Ingabe isikhathi sesevisi yevalvu yesango lesivalo esithambile sifushane kunesosivalo esiqinile?

Akuqiniseki. Ngaphansi kwezimo zokusebenza ezifanele, impilo yesivalo esithambile ingaba yinde kakhulu; noma kunjalo, uma isivalo esithambile sisetshenziswa ezindaweni eziqukethe izinhlayiya noma endaweni eshisa kakhulu, impilo yaso izofinyezwa kakhulu. Ngaphansi kwesisekelo sokukhetha okulungile, kokubili kungafinyelela impilo yesevisi eyanelisayo.

7. Ingabe kukhona umehluko omkhulu ngentengo phakathi kwalezi zinhlobo ezimbili zokuvala?

Ngokuvamile, ama-valve esango avaliwe kahle anezindleko zokukhiqiza eziphansi futhi ayonga kakhulu;amavalvu esango avaliwe ngokuqinilezibiza kakhulu ngenxa yezindleko eziphezulu zezinto zokwakha kanye namasu okucubungula ayinkimbinkimbi (njengokugqwala okungaphezulu, ukugaya ngokunemba).

8. Uyini umehluko ekunakekelweni?

Ukugcinwa kwamavalvu esango avaliwe kalula kulula, vele ufake indandatho yokuvala esikhundleni; uma indawo yokuvala yamavalvu esango avaliwe kanzima yonakele, ukulungiswa endaweni kunzima, futhi ngokuvamile kudinga ukubuyiselwa kumkhiqizi ochwepheshe ukuze ayigaye noma ayiphinde ayifake.

I-TWS: I-valve yesango lokuvala elithambileifanele amanzi ahlanzekile, igesi nezinye izimo zokusebenza futhi ingafinyelela ekungavuzi nhlobo; ukuvala okuqinile kusetshenziselwa ukushisa okuphezulu kanye nokucindezela okuphezulu.Amavalvu ebhabhathane, ama-valve okuhlola, futhii-valve yokukhipha umoyazikhethwa ngokusekelwe kulesi simiso, kucatshangelwa ukusebenza kokuvala, ukumelana nokushisa, kanye nokumelana nokucindezela.