I. Kutheniivalvu yebhabhathaneimigangatho ibalulekile?
Umgangatho uchaza uyilo lweevalvu zebhabhathane kunye novavanyo ekufuneka luphumelele kwivalvu nganye. Ngaphandle kwale migangatho, ukhuseleko lwenkqubo alunakuqinisekiswa. Iivalvu azinakulungelelaniswa, izinto azinakulingana, kwaye yonke inkqubo yemibhobho isengozini engeyomfuneko.
Umgangatho weenkcukacha zevalvu yebhabhathane owulandelayo umisela indlela yoqhagamshelo lweflange, umlinganiselo woxinzelelo kunye nomgangatho wezinto eziphathekayo. Oku kuthetha ukuba iinjineli kufuneka zidibanise umgangatho ngamnye wevalvu yebhabhathane noxinzelelo, ukuhamba kunye nemidiya yenkqubo ukuqinisekisa ukuba yonke into isebenza kakuhle.
Eli nqaku ligxile kwimigangatho emininzi ye-ISO butterfly valve kwaye liyichaza ngokweenkcukacha:
II.Ivalvu yebhabhathaneImigangatho yeMveliso ePhambili
| INOMBOLO EQHELEKILEYO. | Igama Eliqhelekileyo | Ububanzi besicelo | Iiparameters zoBugcisa ezibalulekileyo kunye neenkcukacha |
| I-ISO 10631 | Iivalvu zoshishino – Iivalvu zebhabhathane zentsimbi | Iivalvu zebhabhathane zesinyithi ezinobukhulu obuqhelekileyo DN40 ~ DN2000 kunye namanqanaba oxinzelelo PN10 ~ PN400 | Uhlobo lwesakhiwo (ulungelelwaniso oluphakathi/ubukhulu obufanayo), umgangatho wokutywina (ISO 5208 Class A~F), iimfuno zezinto (umzimba wevalvu, ipleyiti yebhabhathane, iringi yokutywina) |
| I-ISO 21159 | Iivalvu zebhabhathane zentsimbi zenkonzo yobushushu obuphantsi | Iimeko zokusebenza ezinobushushu obuphantsi kunye nobushushu bokusebenza obuyi-≤-46℃ (njenge-LNG, igesi enyibilikisiweyo) | Iimfuneko zokuqina kwezinto ezikwiqondo lobushushu obuphantsi (uvavanyo lwempembelelo lwe--196°C), uyilo lokutywina uyilo lokuhamba okuchasene nokubanda, indlela yokuvavanya i-torque ekwiqondo lobushushu obuphantsi |
| I-ISO 16136 | Iivalvu zebhabhathane ze-thermoplastic | Iivalvu zebhabhathane ze-PVC, PP, PVDF kunye nezinye iivalvu zebhabhathane ze-thermoplastic ezinobukhulu obuqhelekileyo be-DN50~DN1200 | Uvavanyo loxinzelelo lomzimba wevalvu yeplastiki (PN6~PN16), iimfuno zobushushu bokuguqulwa kobushushu, ukumelana nokugqwala kweekhemikhali ezimbini zokutywina (uvavanyo lwe-ISO 175) |
| I-ISO 22306 | Iivalvu zebhabhathane zeplastiki eziqiniswe ngefayibha | Ivalvu yebhabhathane yeplastiki eqinisiweyo yeglasi (GRP) enobukhulu obuqhelekileyo DN100 ~ DN3000 | Amandla olwakhiwo lwe-fiber laminate (uvavanyo lwe-ISO 527 tensile), ukumelana nokwaluphala kwe-UV(ISO 4892-3), ukumelana nokuguguleka kwesibini sokutywina |
III.Ivalvu yebhabhathaneimigangatho yobugcisa exhasayo
| INOMBOLO EQHELEKILEYO. | Igama Eliqhelekileyo | Ububanzi besicelo | Iiparameters zoBugcisa ezibalulekileyo kunye neenkcukacha |
| I-ISO 5752 | Iivalvu zesinyithi – Ubukhulu bobuso nobuso kunye nobukhulu bombindi nobuso | Iinkcukacha ngokubanzi zobude besakhiwo sazo zonke iivalvu zesinyithi (kubandakanya iivalvu zebhabhathane) | Uthotho olufutshane (Uthotho A/B), uthotho olude (Uthotho C/D) itafile yomlinganiselo, unyamezelo lobuso obuhambelanayo lweflange (≤0.3mm) |
| I-ISO 5211 | Iivalvu – Ukufakelwa kwee-actuators | Unxibelelwano phakathi kwevalvu kunye ne-actuator ye-pneumatic/electric | Ubungakanani beshaft yokuqhuba yesikwere (njenge-25×25mm), ukunyamezelana kobubanzi be-keyway (± 0.1mm), ukusebenza kakuhle kokudluliselwa kwe-torque (≥95%) |
| I-ISO 5208 | Iivalvu zesinyithi – Uvavanyo loxinzelelo | Iindlela zokuvavanya ukomelela kweqokobhe kunye nokuqina kweevalvu zesinyithi (kubandakanya iivalvu zebhabhathane) | Uxinzelelo lovavanyo lweShell (1.5×PN), uxinzelelo lovavanyo lwetywina (1.1×PN), izinga lokuvuza (ISO 5208 Class A~F) |
| I-ISO 10497 | Uvavanyo lweevalvu – Iimfuno zovavanyo lohlobo lomlilo | Ukusebenza ngokhuseleko lomlilo kweevalvu ezisetyenziswa kwishishini le-petrochemical | Ixesha lokuvezwa lilangatye (imizuzu engama-30), uxinzelelo lwangaphakathi (2.1 MPa), umda wesantya sokuvuza (≤ 0.5 L/min) |
| I-ISO 15848-1 | Ukulinganiswa kokukhutshwa komoya ongcolileyo | Uvavanyo lokulinganisa ukuvuza kwe-valve methane/VOCs | Ulwahlulo lwezinga lokuvuza (A~F), indlela yokubhaqa (i-helium mass spectrometer/indlela yamaqamza), iimfuno zobomi besitywina (≥imijikelo eyi-100,000) |
IV.Imigangatho Jikelele eSisiseko
| INOMBOLO EQHELEKILEYO. | Igama Eliqhelekileyo | Ububanzi besicelo | Iiparameters zoBugcisa ezibalulekileyo kunye neenkcukacha |
| I-ISO 16046 | Iivalvu – Isigama | Iinkcazo eziSiseko zeSigama kuzo zonke iintlobo zeevalvu | Amagama akhethekileyo kwiivalvu zebhabhathane(ezifana “ne-double eccentric”, “triple eccentric”, “soft seal”, “hard seal”) |
| I-ISO 15848-2 | Uvavanyo lokwamkelwa kwemveliso | Inkqubo yokufumanisa ukuvuza ngexesha lokuveliswa kweevalvu | Isicwangciso sokuvavanya (AQL 1.5), uxinzelelo lokufumanisa (1.1×PN),iikhrayitheriya zokufaneleka (ukuhamba okulinganiselweyo okungu-≤0.1%) |
V. Uhlalutyo lokulinganisa iiNkqubo eziMiselweyo eziPhambili
| Umgangatho we-ISO | I-API 609 (Umgangatho waseMelika) | GB/T 12238(Umgangatho weSizwe) | EN 593(Umgangatho waseYurophu) | UkulinganisaIimiyalelo |
| I-ISO 10631 | I-API 609 Udidi A/B | GB/T 12238-2008 | EN 593-2013 | Zonke ezi valvu zebhabhathane zesinyithi ezintathu zigquma, kodwa i-API 609 igxininisa uyilo "oluphindwe kabini", kwaye i-EN 593 yongeza iimfuno "eziphindwe kathathu" zesakhiwo |
| I-ISO 5752 | I-API 609 Isihlomelo B | GB/T 12221-2005 | EN 558-1/2 | I-ISO 5752 ihambelana ngokupheleleyo ne-EN 558, kwaye i-GB/T 12221 yongeza imilinganiselo ethile yaseTshayina (efana ne-DN2500) |
| I-ISO 5208 | I-API 598 | GB/T 13927-2008 | EN 12266-1 | Iindlela zovavanyo zezi zintathu ziyafana, kodwa i-API 598 ivumela izinga eliphezulu lokuvuza (iKlasi VI), kwaye i-ISO/EN ineemfuno ezingqongqo (iKlasi A) |
| I-ISO 10497 | I-API 607/6FA | GB/T 23935-2009 | I-ISO 10497(Yamkelwe ngokulinganayo) | Iimeko zovavanyo lomlilo ziyafana, kodwa i-API 6FA yongeza iimfuno ezongezelelweyo "zempembelelo yobushushu obuphantsi" |
VI. Isishwankathelo kunye neeNgcebiso
1. Ukugqibelela okuqhelekileyo kokugubungela:Inkqubo esemgangathweni ye-ISO igubungele ngokupheleleyo umjikelo wobomi beevalvu zeebhabhathane ukusuka kuyilo, ukwenziwa ukuya kuvavanyo, kwaye ilungile ngakumbi kwiindawo ezisakhasayo (ezifana nobushushu obuphantsi, iivalvu zeplastiki).
2. Umahluko kwiiparameter zobugcisa:
- Inqanaba lokutywina:I-ISO 5208 kunye ne-EN 12266 zingqongqo ngakumbi (izinga lokuvuza kweKlasi A ≤0.05% elilinganiswe ngokuhamba), i-API 598 ivumela iKlasi VI (≤0.3%).
- Iimfuneko zokukhusela umlilo:Iimeko zovavanyo lwe-ISO 10497 kunye ne-API 6FA ziyahambelana, kodwa i-ISO ayigunyazisi uvavanyo lwempembelelo yobushushu obuphantsi.
3. Iingcebiso zokukhetha iBhidi yeShishini:
-Ukuthumela ngaphandle eYurophu:Isatifikethi se-ISO/EN esiphindwe kabini (esifana ne-ISO 10631+EN 593) sinikwa ingqalelo ephambili.
- Ukuphelelwa lixeshaukuthumela eMelika:Kufuneka iziqinisekiso ezikhethekileyo ze-API 609 (ulwakhiwo) kunye ne-API 598 (uvavanyo).
- Iiprojekthi zasekhaya:I-GB/T 12238 inokujongana neemfuno eziqhelekileyo, kodwa iiprojekthi eziphezulu ziyacetyiswa ukuba zithobele i-ISO 15848 (ukuvuza okuphantsi) ngaxeshanye.
Iivalvu zebhabhathane, iivalvu zesango, iivalvu zokujonga, nangona iivalvu zahlukile, ukhuseleko luyafana.Tianjin Tanggu Water-Seal Valve Co., Ltd. inamathela kwinkqubo esemgangathweni ye-ISO, yakha umgangatho ngokungqongqo, kwaye ifumana ukuthenjwa ngobuchwephesha. Isekelwe kwimigangatho kwaye ijolise kwixesha elide -I-TWSyenza ihlabathi libe manzi ngakumbi.
Ixesha leposi: Julayi-22-2026
