Izinhlelo zamanzi zidinga izixazululo eziqinile, ezisebenzayo, nezithembekile.I-valve yesango le-PPRihlola wonke la mabhokisi, okwenza kube ukukhetha okuvelele kwamapayipi esimanje. Ukuqina nokusebenza kwayo kusekelwa izibalo ezihlaba umxhwele:

1. Imelana nokucindezela okungaphezu kwe-5 MPa, iqinisekisa amandla okushaya.
2. Isebenza kahle emazingeni okushisa afinyelela ku-100°C.
3. Inikeza isikhathi sokuphila seminyaka engama-50 noma ngaphezulu, ihlangabezana nezindinganiso zomhlaba wonke.

Lezi zici ziqinisekisa ukusebenza kahle, umsindo oncishisiwe, kanye nesivinini sokugeleza esifanele—izimfanelo eziphakamisa ukusebenza kahle kwesistimu yamanzi kanye nenduduzo.

Izinto Ezibalulekile Okufanele Uzicabangele

• Amavalvu esango le-PPR aqinile futhi angasebenza iminyaka engama-50.inketho ethembekile yezinhlelo zamanzi.
• Lawa ma-valve aphephile futhi ahlanzekile, agcina amanzi okuphuza engenamakhemikhali ayingozi.
• Amavalvu esango le-PPR agcina ukushisa ngaphakathi, onge amandla futhi asize imvelo.

Izici Eziyingqayizivele Zamavalvu Esango Le-PPR

Izinzuzo zezinto ze-PPR

Izinto ezisetshenziswa kumavalvu esango le-PPR ziwahlukanisa nezinketho zendabuko. I-polypropylene random copolymer (PP-R) inikeza inhlanganisela eyingqayizivele yokuphepha, ukuqina, kanye nokusebenza kahle. Ayinabo ubuthi futhi ihlanzekile, okwenza ifaneleke kakhulu ezinhlelweni zamanzi okuphuza. Ngokungafani namavalvu ensimbi, ayigqwali noma ikhiphe izinto eziyingozi emanzini.

Izinto ze-PP-R nazo ziphumelela kakhulu ekumelaneni nokushisa. Zingamelana namazinga okushisa afinyelela ku-95°C, okwenza kube kuhle kakhulu kumapayipi amanzi ashisayo. Ukushisa kwayo kuphansi kakhulu kunensimbi, okusiza ukugcina ukushisa nokunciphisa ukusetshenziswa kwamandla. Lesi sici siwusizo ikakhulukazi ezinhlelweni zokushisa lapho ukusebenza kahle kwamandla kubalulekile khona.

Nasi ukubuka okusheshayo izinzuzo zezinto ze-PPR:

Inzuzo	Incazelo
Akunabo ubuthi futhi kuhlanzekile	Kwenziwe ngekhabhoni ne-hydrogen, okuqinisekisa ukuthi azikho izinto eziyingozi, kufanelekile ezinhlelweni zamanzi okuphuza.
Ukulondolozwa kokushisa nokonga amandla	Ukushisa kuphansi kakhulu kunensimbi, okuthuthukisa ukusebenza kahle kwamandla.
Ukumelana nokushisa okungcono	Ingamelana namazinga okushisa afinyelela ku-95℃, ifanele izinhlelo zamanzi ashisayo.
Impilo yenkonzo ende	Isikhathi sokuphila esilindelekile sidlula iminyaka engama-50 ngaphansi kwezimo ezijwayelekile, cishe iminyaka engaphezu kweyikhulu emazingeni okushisa ajwayelekile.
Ukufakwa okulula nokuxhumeka okuthembekile	Ukusebenza kahle kokushisela kuvumela ukufakwa okulula ngamajoyinti aqinile.
Izinto zingaphinde zisetshenziswe	Imfucuza ingacutshungulwa futhi isetshenziswe kabusha ekukhiqizeni ngaphandle kokwehlisa ikhwalithi.

Lezi zici zenzaAmavalvu esango le-PPRukukhetha okuhlakaniphile kunoma ubani ofuna ukuthuthukisa izinhlelo zakhe zamanzi.

Izinzuzo Zokuklama Zezinhlelo Zamanzi

Umklamo wamavalvu esango le-PPR wenzelwe izidingo zamapayipi zesimanje. Isakhiwo sawo esilula senza ukuphathwa nokufakwa kube lula uma kuqhathaniswa namavalvu ensimbi amakhulu. Amavalvu aklanyelwe ukuhlinzeka ngokugeleza kwamanzi okubushelelezi, ukunciphisa umsindo nokuqinisekisa ukucindezela okuqhubekayo.

Esinye isici esivelele ukwakheka kwazo okungenawo amanzi. Ukusebenza kahle kokushisela kwezinto ze-PPR kuqinisekisa ukuxhumana okuqinile okungeke kuphele ngokuhamba kwesikhathi. Lokhu kuthembeka kubalulekile kokubili ezisetshenziswayo zokuhlala kanye nezebhizinisi lapho izinhlelo zamanzi zidinga ukusebenza ngaphandle kokuphazamiseka.

Amavalvu esango le-PPR nawo eza ngobukhulu obuhlukahlukene, okwenza abe nokuguquguquka ezinhlotsheni ezahlukene zamapayipi. Kungakhathaliseki ukuthi uhlelo lwasekhaya oluncane noma isethaphu esikhulu sezimboni, lawa mavalvu angena kalula ekwakhiweni.

Ukufakwa Kwe-Thermal Nokusebenza Kahle Kwamandla

Ukufakwa kokushisa kungenye yezici ezihlaba umxhwele kakhulu zamavalvu esango le-PPR. Njengoba ekwazi ukudlulisa ukushisa okungu-0.21 W/mK kuphela, anciphisa kakhulu ukulahleka kokushisa uma kuqhathaniswa namavalvu ensimbi endabuko. Lesi sici sisiza ukugcina izinga lokushisa lamanzi ezinhlelweni zamanzi ashisayo, songa amandla futhi wehlise izindleko zikagesi.

Ukusetshenziswa kahle kwamandla akukhona nje ukonga imali—kuphinde kube nokusimama. Ngokunciphisa ukulahleka kokushisa, ama-valve esango le-PPR anegalelo emikhubeni yokwakha eluhlaza. Ahambisana nesidingo esikhulayo sezixazululo ezinobungani nemvelo ekwakheni nasekufakeni amapayipi.

Ngaphezu kwalokho, ikhono lamavalvu lokubekezelela amazinga okushisa aphezulu liqinisekisa ukuthi asebenza kahle ezindaweni ezidinga amandla amaningi. Kungakhathaliseki ukuthi uhlelo lokushisa lwendlu noma ipayipi lamanzi ashisayo lezentengiselwano, amavalvu esango le-PPR anikeza ukusebenza okuthembekile ngenkathi egcina ukusetshenziswa kwamandla kulawuleka.

Izinzuzo Ezisebenzayo Zamavalvu Esango Le-PPR

Ukulawula Ukugeleza Okuthembekile

Uhlelo lwamanzi oluthembekile luncike ekulawuleni ukugeleza okubushelelezi nokungaguquguquki. Ivalvu yesango le-PPR iphumelela kakhulu kule ndawo, ngenxa yomklamo wayo othuthukisiwe kanye nezakhiwo zezinto ezibonakalayo. Izindonga zayo zangaphakathi ezibushelelezi zinciphisa ukungqubuzana, okuvumela amanzi ukuthi ageleze ngokukhululeka ngaphandle kokuvinjelwa. Lesi sici asigcini nje ngokuqinisekisa ukucindezeleka kwamanzi okuzinzile kodwa futhi sinciphisa nokulahlekelwa amandla ngesikhathi sokusebenza.

Ukusebenza kwe-hydraulic kwe-valve kungenye into evelele. Ukwakheka kwayo kuvimbela ukunqwabelana kwama-deposit, kugcina uhlelo lusebenza kahle ngokuhamba kwesikhathi. Kungakhathaliseki ukuthi uhlelo lwamapayipi oluhlala ekhaya noma ukusetha okukhulu kwezentengiselwano, i-valve yesango le-PPR inikeza ukulawula ukugeleza okuthembekile.

Nasi incazelo esheshayo yokusebenza kwayo kokulawula ukugeleza:

Isilinganiso sokusebenza	Incazelo
Ukumelana Nokushisa Okuphezulu	Izinga lokushisa eliphezulu lokusebenza elihlala isikhathi eside lifinyelela ku-70°C; izinga lokushisa lesikhashana lifinyelela ku-95°C.
Amandla Okugeleza Okuphezulu	Izindonga zangaphakathi ezibushelelezi ziholela ekulahlekelweni kwengcindezi okuphansi kanye nokugeleza kwevolumu ephezulu.
Impilo Ende	Impilo yesevisi elindelekile yeminyaka engaphezu kwengu-50 ngaphansi kwezimo ezijwayelekile.
Izindleko Zokufaka Eziphansi	Ilula futhi kulula ukuyiphatha, kunciphisa izindleko zokufaka ezijwayelekile.
Ukusebenza Okuhle Kakhulu Kwe-Hydraulic	Isikhumba sangaphakathi esibushelelezi sivimbela ukwakheka, okuqinisekisa ukugeleza kwamanzi okusebenzayo.
Ukumelana namakhemikhali	Ayimelani nokugqwala okuvela enhlabathini enolaka nenosawoti kanye nokungcola kwendle.

Lezi zici zenza ivalvu yesango le-PPR ibe yisinqumo esihle kakhulu kunoma ubani ofuna ukulawula ukugeleza kwamanzi okuthembekile nokusebenzayo.

Ukumelana Nokucindezela Okuphezulu Nokushisa

Izinhlelo zamanzi zivame ukubhekana nezimo ezimbi kakhulu, njengokucindezela okuphezulu noma amazinga okushisa aphezulu. Ivalvu yesango le-PPR yakhelwe ukubhekana nalezi zinselele kalula. Ukwakhiwa kwayo okuqinile kuyivumela ukuthi igcine ukusebenza ngisho nangaphansi kwezimo ezinzima.

Ukuhlolwa kwengcindezi kanye nokushisa kuqinisekisa ukumelana kwayo okumangalisayo. Isibonelo, ku-20°C, ivalvu ingamelana nengcindezi efinyelela ku-30.0 MPa yezinhlelo ezilinganiselwe yi-PN10. Ngisho nasemazingeni okushisa aphezulu, njenge-75°C, isebenza ngokuthembeka, igcina isilinganiso sengcindezi esingu-12.3 MPa yezinhlelo ze-PN10.

Nasi ukubuka okuningiliziwe kokusebenza kwayo ngaphansi kwezimo ezahlukahlukene:

Izinga lokushisa	I-PN10	I-PN12.5	I-PN16	I-PN20
20℃	30.0	23.8	18.9	15.0
40℃	21.2	17.1	12.4	9.2
50℃	18.3	14.5	10.5	8.2
60℃	15.4	12.2	/	/
75℃	12.3	9.9	/	/

Leli zinga lokuqina liqinisekisa ukuthi ivalvu yesango le-PPR ingaphatha kokubili ukusetshenziswa kwansuku zonke kanye nezimo ezimbi kakhulu, okwenza kube ukukhetha okuthembekile kwezinhlelo zamanzi.

Izakhiwo Ezingavuzi Futhi Ezihlanzekile

Ukuvuza kungaphazamisa izinhlelo zamanzi futhi kuholele ekulungisweni okubizayo. Ivalvu yesango le-PPR iqeda lokhu kukhathazeka nge-umklamo ongavuziUkusebenza kwayo kokushisela kuqinisekisa ukuxhumana okuqinile, okungenamthungo okuhlala kuphephile ngokuhamba kwesikhathi. Lokhu kuthembeka kubaluleke kakhulu ezinhlelweni lapho ukugeleza kwamanzi okungaphazamiseki kubalulekile khona.

Ngaphezu kokumelana nokuvuza, ivalvu nayo ihlanzekile kakhulu. Yenziwe ngezinto ezingezona ezinobuthi, iphephile ukusetshenziswa ezinhlelweni zamanzi okuphuza. Izinto ze-polypropylene random copolymer (PP-R) azigqwali noma zikhiphe izinto eziyingozi emanzini. Lokhu kwenza kube ukukhetha okuhle kakhulu kokusetshenziswa lapho ikhwalithi yamanzi ibaluleke kakhulu.

Inhlanganisela yokuthembeka okuvikela ukuvuza kanye nezakhiwo zokuhlanzeka kwenza i-PPR gate valve ibe inketho evelele kokubili ezinhlelweni zamanzi zasemakhaya kanye nezebhizinisi. Inikeza ukuthula kwengqondo ngenkathi iqinisekisa ukuphepha nokusebenza kahle kwenethiwekhi yamapayipi.

Inani Lesikhathi Eside Lama-PPR Gate Valve

Ukuqina Okumangalisayo kanye Nesikhathi Sokuphila

Amavalvu esango le-PPR akhiwe ukuze ahlale isikhathi eside. Ukuqina kwawo kuqinisekiswe ngokuhlolwa okuqinile kanye nezindinganiso zomhlaba wonke. Isibonelo, i-ISO/TR9080-1992 kanye ne-DIN16892/3 ziqinisekisa ukuthi lawa mavalvu angasebenza ngokwethembeka iminyaka efinyelela kwengu-50 ngaphansi kwezimo zokusebenza eziqhubekayo. Ngobukhulu obufanele kanye nezilinganiso zokucindezela, angadlula ngisho nalesi sikhathi sokuphila ekushiseni kwegumbi.

Lokhu kuphila isikhathi eside kubenza babe yitshalomali ehlakaniphile ezinhlelweni zamanzi. Ngokungafani namavalvu endabuko angadinga ukushintshwa njalo, amavalvu esango le-PPR anikeza ukuthula kwengqondo ngokuphila kwawo isikhathi eside. Kungakhathaliseki ukuthi asetshenziswa ezindaweni zokuhlala noma zezentengiselwano, aqinisekisa ukusebenza okuqhubekayo phakathi namashumi eminyaka.

Izindleko Zokulungisa Eziphansi Nezokusebenza

Amavalvu esango le-PPR aklanyelwe ukunciphisa izidingo zokulungisa. Ubuso bawo obubushelelezi bangaphakathi buthuthukisa ukugeleza koketshezi, kunciphisa ukusetshenziswa kwamandla ngesikhathi sokusebenza. Lokhu kusebenza kahle kunciphisa izindleko zikagesi ngokuhamba kwesikhathi. Ngaphezu kwalokho, izinto zawo ezingamelani nokugqwala ziqeda isidingo sokulungiswa okubizayo okubangelwa ukugqwala noma ukuguguleka.

Ukufakwa kuyashesha futhi kulula, konga isikhathi kanye nezindleko zabasebenzi. Amavalvu ahambisana newaranti yeminyaka eyi-10, okugcizelela kakhulu ukuthembeka kwawo. Ngokunciphisa kokubili izindleko zokulungisa nezokusebenza, amavalvu esango le-PPR ahlinzeka nge-ikhambi elingabizi kakhulukwezinhlelo zamanzi.

Izinto Ezinobungani Nemvelo Nezisimeme

Ukusimama kuyisici esibalulekile sama-valve esango le-PPR. Enziwe nge-polypropylene random copolymer engasetshenziswa kabusha, ahambisana nemikhuba yokwakha enobungani nemvelo. Noma yimuphi udoti okhiqizwa ngesikhathi sokukhiqiza ungasetshenziswa kabusha, okunciphisa umthelela emvelweni.

Lawa ma-valve aphinde abe negalelo ekusebenzeni kahle kwamandla. Ukushisa kwawo okuphansi kusiza ukonga ukushisa ezinhlelweni zamanzi ashisayo, kunciphisa ukusetshenziswa kwamandla. Ukukhetha ama-valve esango le-PPR kusho ukukhetha ikusasa eliluhlaza nelizinzile.

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Amavalvu esango le-PPR anikeza inhlanganisela ephumelelayo yezinto ezithuthukisiwe, ukwakheka okuhlakaniphile, kanye nokusebenza okuhlala isikhathi eside. Akhelwe ukubhekana nezidingo zezinhlelo zamanzi zasemakhaya nezamabhizinisi. Kungakhathaliseki ukuthi ukuqina, ukonga izindleko, noma ukusebenza kahle, lawa mavalvu ahlola ibhokisi ngalinye. Kunoma ubani othuthukisa uhlelo lwakhe lwamanzi, ivalvu yesango le-PPR iyisinqumo esithembekile.

Imibuzo Evame Ukubuzwa

Yini eyenza ama-valve esango le-PPR abe ngcono kune-valve yensimbi?

Amavalvu esango le-PPR ayamelana nokugqwala, anikeza ukuvikela okungcono kokushisa, futhi ahlala isikhathi eside. Ukwakheka kwawo okulula kwenza kube lula ukufakwa uma kuqhathaniswa namavalvu ensimbi esindayo.

Ingabe ama-valve esango le-PPR angaphatha izinhlelo zamanzi ashisayo?

Yebo! Zimelana namazinga okushisa afinyelela ku-95°C, okwenza zilungele amapayipi amanzi ashisayo kanye nezinhlelo zokushisa.

Ingabe ama-valve esango le-PPR anobungani nemvelo?

Impela! Zenziwe ngezinto eziphinde zisetshenziswe, zinciphisa imfucuza futhi zisekela imikhuba yokwakha esimeme. Umklamo wazo osebenzisa amandla kahle uyasiza nasekulondolozweni kwezinsiza.