Izigaba eziyisi-6 zevalve uvemvane evala uphawu

Njengengxenye esetshenziselwa ukuqaphela ukulawulwa kokuvala nokugeleza kwesistimu yepayipi, i-valve uvemvane evalwe ngokuthambile iye yasetshenziswa kabanzi emikhakheni eminingi efana ne-petroleum, imboni yamakhemikhali, i-metallurgy, i-hydropower njalonjalo.I-disc yevalve uvemvane evalekayo ethambile ifakwe endleleni eqondile yepayipi.Endlini eyisilinda yomzimba wevalvu uvemvane, ipuleti uvemvane okumise okwediski lizungeza i-eksisi, futhi i-engeli yokuzungeza iphakathi kuka-0° no-90°.Uma ijikeleza ku-90 °, i-valve ivuleke ngokugcwele.

1. Ukuhlelwa ngokuvala impahla engaphezulu

1) I-valve uvemvane evala uphawu: Ukuvala kwakhiwe ngezinto ezithambile ezingezona ezensimbi ukuya kuzinto ezithambile ezingezona ezensimbi.

I-2) I-valve ye-butterfly eqinile yensimbi eqinile: Ipheya elivalayo lakhiwe ngezinto eziqinile zensimbi kuya kwensimbi eqinile.

2. Ukuhlukaniswa ngesakhiwo

1) Isivalo se-butterfly valve

2) I-valve yevemvane evala uphawu olulodwa

3) I-valve yevemvane evala uphawu ephindwe kabili

4) I-valve yevemvane evala uphawu kathathu

3. Ukuhlukaniswa ngefomu lokuvala

1) I-valve uvemvane evala uphawu ngempoqo: Ukuvala kukhiqizwa ipuleti levalvu elicindezela isihlalo sevalvu lapho ivalvu ivaliwe, kanye nokunwebeka kwesihlalo sevalvu noma ipuleti levalvu.

I-2) I-valve ye-butterfly yokuvala i-torque esetshenziswayo: ukuvala uphawu kukhiqizwa yi-torque efakwe ku-valve shaft.

3) I-valve uvemvane evala ngomfutho: Ukuvala kukhiqizwa ngokushajwa kwesici sokuvala esinwebekayo esihlalweni sevalvu noma ipuleti levalvu.

I-4) I-valve ye-butterfly evala ngokuzenzakalelayo: ukuvala uphawu kukhiqizwa ngokuzenzakalelayo ukucindezela okuphakathi.

4. Ukuhlukaniswa ngengcindezi yomsebenzi

1) I-vacuum butterfly valve: i-valve uvemvane umfutho wayo wokusebenza uphansi kunomfutho ojwayelekile womkhathi.

I-2) I-valve ye-butterfly enengcindezi ephansi: i-valve ye-butterfly ene-pressure ye-PN <1.6MPa.

3) I-valve uvemvane enengcindezi emaphakathi: ivalve uvemvane ene-PN yokucindezela okuzisholo okungu-2.5 kuya ku-6.4MPa.

I-4) I-valve ye-butterfly enengcindezi ephezulu: i-valve ye-butterfly ene-PN ye-PN engu-10.0 kuya ku-80.0MPa.

5) I-valve uvemvane enomfutho ophakeme kakhulu: iveluvu yevemvane enomfutho wegama elithi PN>100MPa.

5. Ukuhlelwa ngendlela yokuxhuma

1) I-valve ye-butterfly ye-wafer

2) I-valve ye-butterfly ene-flanged

3) Lug butterfly valve

4) Welded butterfly valve

6. Ukuhlelwa ngokushisa okusebenzayo

1) I-valve ye-butterfly yokushisa ephezulu: > 450 ℃

2) Izinga lokushisa elimaphakathi uvemvane valve: 120℃

3) Izinga lokushisa elivamile uvemvane valve: -40 ℃

4) I-valve ye-butterfly yokushisa ephansi: -100 ℃

5) Izinga lokushisa eliphansi kakhulu le-butterfly valve: <-100℃