Kunezinhlobo eziningi zamavalvu ezimvemvane, futhi kunezindlela eziningi zokuhlukanisa.
1. Ukuhlukaniswa ngokwesakhiwo
(1)ivalvu yebhabhathane eliyindilinga(2) ivalvu yebhabhathane eliyindilinga elilodwa; (3) ivalvu ephindwe kabiliivalvu yebhabhathane engavamile(4) ivalvu yebhabhathane enezinhlangothi ezintathu
2. Ukuhlukaniswa ngokwezinto zokuvala ubuso
(1) Ivalvu yebhabhathane eqinile
(2) Ivalvu yebhabhathane eqinile evalwe ngohlobo lwensimbi. Ipheya lokuvala lakhiwe ngezinto eziqinile zensimbi nezinsimbi.
3. Ukuhlukaniswa ngokwesimo esivaliwe
(1) Ivalvu yebhabhathane evalwe ngenkani.
(2) Ivalvu yokuvala ingcindezi yebhathane. Ingcindezi yokuvala ikhiqizwa yisakhi sokuvala esinwebekayo esihlalweni noma epuletini.
(3) Ivalvu yebhabhathane evalwe ngokuzenzakalelayo. Ingcindezi ethile yesivalo ikhiqizwa ngokuzenzakalelayo yingcindezi ephakathi nendawo.
4. Ukuhlukaniswa ngokwengcindezi yomsebenzi
(1) Ivalvu yebhabhathane elingenalutho. Ivalvu yebhabhathane enomfutho osebenzayo ophansi kunomoya ojwayelekile.
(2) Ivalvu yebhabhathane enengcindezi ephansi. Ivalvu yebhabhathane enengcindezi encane engu-PN≤1.6MPa.
(3) Ivalvu yebhabhathane enomfutho ophakathi. I-PN yomfutho ojwayelekile iyivalvu yebhabhathane engu-2.5∽6.4MPa.
(4) Ivalvu yebhabhathane enomfutho ophezulu. I-PN yomfutho ojwayelekile iyivalvu yebhabhathane engu-10.0∽80.OMPa.
(5) Ivalvu yebhabhathane enengcindezi ephezulu kakhulu. Ivalvu yebhabhathane enengcindezi ejwayelekile ye-PN <100MPa.
5. Ukuhlukaniswa ngemodi yokuxhuma
(1)I-valve yebhabhathane ye-Wafer
(2) I-Flange butterfly valve
(3) Ivalvu yebhabhathane le-Lug
(4) Ivalvu yebhabhathane elishiselwe
I-Concentric Butterfly valve uhlobo lwe-valve evula futhi ivale nge-butterfly plate eyindilinga bese ivula, ivale futhi ilungise isiteshi soketshezi ngokujikeleza kwesiqu se-valve. I-butterfly plate ye-butterfly valve ifakwe ohlangothini lobubanzi bepayipi. Esiteshini esiyindilinga somzimba we-butterfly valve, i-disc butterfly plate ijikeleza i-axis, kanti i-rotation Angle iphakathi kuka-0 no-90. Lapho ukujikeleza kufinyelela ku-90, i-valve ivuleka ngokuphelele.
Amaphuzu abalulekile okwakha nokufaka
1) Indawo yokufaka, ukuphakama, ukungenisa kanye nesiqondiso sokuthumela kumele kuhlangabezane nezidingo zomklamo, futhi uxhumano kufanele luqine futhi luqine.
2) Isibambo sazo zonke izinhlobo zamavalvu esandla afakwe epayipini lokushisa akufanele sibe phansi.
3) Ivalvu kumele ihlolwe ngaphandle ngaphambi kokufakwa, futhi ipuleti legama levalvu kumele lihlangabezane nezinhlinzeko zezinga lamanje likazwelonke elithi “General Valve Mark” GB 12220. Kumavalvu anomfutho osebenzayo ongaphezu kwe-1.0 MPa kanye nokunqunywa kwepayipi eliyinhloko, kufanele kwenziwe ukuhlolwa kwamandla nokusebenza okuqinile ngaphambi kokufakwa futhi kufanele kusetshenziswe ngemuva kokuhlolwa. Ekuhlolweni kwamandla, umfutho wokuhlola uphindwe ka-1.5 womfutho ojwayelekile, futhi ubude bungaphansi kwemizuzu emi-5. Igobolondo levalvu kanye nokupakisha kufanele kuhlolwe ngaphandle kokuvuza. Ekuhlolweni kokuqina, umfutho wokuhlola uphindwe ka-1.1 womfutho ojwayelekile; umfutho wokuhlola kufanele uhlangabezane nezinga le-GB 50243 ngesikhathi sokuhlolwa, futhi ubuso besivalo bufanelekile.
Ukukhethwa komkhiqizo wamaphuzu abalulekile
1. Amapharamitha okulawula ayinhloko evalvu yebhabhathane yizincazelo nobukhulu.
2. I-valve ye-butterfly iyi-valve yomoya yepuleti elilodwa, isakhiwo sayo silula, ukucubungula okulula, izindleko eziphansi, ukusebenza okulula, kodwa ukunemba kokulungisa akukuhle, kufaneleka kuphela ohlelweni lokungenisa umoya kanye nokupholisa umoya ukuze kushintshwe noma kulungiswe kahle umcimbi.
3. Kungaba ukusebenza ngesandla, ngogesi noma ngohlobo lweziphu, kungalungiswa kunoma yiliphi i-engela yobubanzi obungu-90.
4. Ngenxa yepuleti levalvu elilodwa eliyindilinga elilodwa, amandla okuthwala anqunyelwe, esimweni somehluko omkhulu wokucindezela, izinga lokugeleza elikhulu lapho impilo yesevisi yevalvu imfushane. Ivalvu inohlobo oluvaliwe nohlobo olujwayelekile, ukuvikela kanye nokungavimbeli.
5. Ivalvu yebhabhathane kagesi inokulawula okubili kuphela, i-actuator kagesi ifana nevalvu enamaqabunga amaningi.
Isikhathi sokuthunyelwe: Okthoba-26-2023
