Loto e ka metsing a nooang e baka likotsi tse kholo tsa bophelo bo botle, haholo-holo bakeng sa bana. Lintlha tsa bophelo bo botle ba sechaba tsa UK li hokahanya ho pepesehela loto ho likhaello tsa nts'etsopele ea methapo le mathata a boitšoaro.Lisebelisoa tsa li-valvetse entsoeng ka thepa e se nang loto li thusa ho thibela tšilafalo. Lihlahisoa tse netefalitsoeng li netefatsa hore metsi a tla ka mokhoa o sireletsehileng 'me li sireletsa baahi ba kotsing liphellong tse kotsi.
Lintlha tsa Bohlokoa
- Li-valve tse se nang loto tse netefalitsoeng, joalo ka tse amohetsoeng ke WRAS, li netefatsa metsi a nooang a sireletsehileng ka ho thibela tšilafalo ea loto le ho fihlela maemo a bophelo bo botle a UK.
- Ho khetha thepa e nepahetseng joalo ka koporo ea DZR, tšepe e sa ruseng, kapa polasetiki e netefalitsoeng ho ntlafatsa ho tšoarella ha li-valve le ho sireletsa boleng ba metsi ha nako e ntse e ea.
- Tlhahlobo ea kamehla le tlhokomelo e nepahetseng ea li-valve fittings li thusa ho thibela ho lutla le ho bola, ho lelefatsa bophelo ba sistimi le ho sireletsa bophelo bo botle ba sechaba.
Setifikeiti le Polokeho ea Lisebelisoa tsa Valve
Kamohelo ea WRAS le Melao ea Metsi a Nooang ea UK
Tumello ea WRAS e eme e le tekanyetso ea polokeho le ho latela melao litsamaisong tsa metsi a nooang tsa UK. Morero oa Boeletsi ba Melawana ea Metsi (WRAS) o netefatsa hore li-valve fittings li fihlela litlhoko tse tiileng ho sireletsa bophelo bo botle ba sechaba. Lisebelisoa li lokela ho se be chefo le ho sireletseha bakeng sa metsi a nooang, ho thibela tšilafalo mohatong o mong le o mong. Bahlahisi ba rala li-valve ho hanela ho bola le ho senyeha, ho netefatsa ho tšepahala ha nako e telele. Ho latela Melao ea Phepelo ea Metsi ea UK (Li-Water Fittings) ho ntse ho tlama bakeng sa lits'ebetso tsohle.
Li-valve tse amohetsoeng ke WRAS li tlameha ho fihlela litekanyetso tse 'maloa tsa bohlokoa:
- Tšebeliso ea lintho tse sireletsehileng, tse seng chefo tse loketseng metsi a nooang
- Ho tšoaneleha ha mechini le ho hanyetsa ts'enyeho
- Saese e nepahetseng e lumellanang le litlhoko tsa liphaephe le phallo
- Litekanyetso tsa khatello le mocheso tse lumellanang le litlhoko tsa sistimi
- Mefuta ea khokahano e lumellanang, joalo ka li-fittings tsa BSP tse nang le khoele kapa tsa compression
- Litokomane tse netefalitsoeng tsa setifikeiti sa WRAS pele ho ho kenngwa
Li-valve tse fihlelang maemo ana li thusa ho boloka boleng ba metsi le botšepehi ba sistimi. Moralo le thepa ha lia lokela ho arabela ka metsi kapa ho tsoa linthong tse kotsi. Setifikeiti sa WRAS se fana ka tiisetso ea hore sehlahisoa se ke ke sa beha polokeho ea metsi kotsing kapa ho tšepahala.
Maemo a Lefatše bakeng sa Lisebelisoa tsa Valve
Li-valve tse sebelisoang lits'ebetsong tsa metsi a nooang hangata li tlameha ho latela maemo a naha le a machaba. Litifikeiti tse 'maloa tse tsebahalang lefatšeng ka bophara li netefatsa polokeho ea sehlahisoa le ts'ebetso libakeng tse fapaneng. Tsena li kenyelletsa:
- Letšoao la Metsi la Kiwa (Netherlands): Setifikeiti sa lihlahisoa tse kopaneng le metsi a nooang
- NSF (Amerika Leboea): Setifikeiti sa liphaephe le lisebelisoa tse amanang le metsi a nooang
- WRAS (Great Britain): Setifikeiti sa ho latela melao ea metsi ea UK
- DVGW-W270 (Jeremane): Setifikeiti se kenyeletsang liteko tsa kholo ea baktheria
- ACS (Fora): Tumello e tlamang bakeng sa thepa e kopaneng le metsi a nooang
- WaterMark (Australia le New Zealand): Setifikeiti se tlamang bakeng sa dihlahiswa tsa diphaephe le tsa drainage
| Nomoro e Tloaelehileng | Tlhaloso | Sebaka |
|---|---|---|
| ISO 1452-4:2009 | Mekhoa ea liphaephe tsa polasetiki bakeng sa phepelo ea metsi — PVC-U — Karolo ea 4: Li-valve | E koahela li-valve tsa PVC tse sa sebelisoang ka polasetiki tse sebelisoang lits'ebetsong tsa phepelo ea metsi |
| ISO 1452-5:2009 | Mekhoa ea liphaephe tsa polasetiki bakeng sa phepelo ea metsi — PVC-U — Karolo ea 5: Boikoetliso bakeng sa morero | E netefatsa hore sistimi e loketse morero ho kenyeletsoa le li-valve |
| ISO 2531:1998 le 2009 | Liphaephe tsa tšepe tse entsoeng ka ductile, li-fittings, lisebelisoa le manonyeletso bakeng sa ts'ebeliso ea metsi | E totobatsa litlhoko tsa li-valve le li-fitting tsa tšepe tse ductile |
| ISO 11177:2016 le 2019 | Li-enamel tsa vitreous le porcelain — Li-valve tse nang le enamel le lisebelisoa tsa metsi a nooang | Litlhoko tsa boleng le liteko tsa li-valve tse tšetsoeng ka enamel phepelong ea metsi |
Litifikeiti tsa machaba tse kang ISO, ASTM, ANSI/ASME, DIN, JIS, API, NSF, le DVGW li akaretsa litlhoko tse fapaneng. Litekanyetso tsena li shebana le litekanyo, thepa, liteko, ts'ebetso le polokeho. Litifikeiti tse ikhethileng tsa UK, ho kenyeletsoa le Litekanyetso tsa Brithani (BS) le BSI Kitemark, li shebana le melaoana ea naha le netefatso ea boleng. BSI Kitemark e ananeloa UK le machabeng, e tšehetsa setifikeiti sa letšoao la CE la Europe. Litekanyetso tsa UK hangata li lumellana le melaoana ea Europe le ea ISO empa li boloka litlhoko tse ikhethang bakeng sa li-fittings tse itseng. Litumello tsa WRAS li hatisa ho latela melaoana ea phepelo ea metsi ea UK, ho netefatsa hore lihlahisoa li fihlela litekanyetso tsa machaba le tsa naha.
Setifikeiti se Bolelang Bakeng sa Bophelo bo Botle le ho Latela Melao
Setifikeiti sa di-valve fittings se bapala karolo ya bohlokwa ho lateleng molao le tshireletsong ya bophelo bo botle ba setjhaba. Setifikeiti sa WRAS se netefatsa hore di-valve ha di silafatse metsi a nowang kapa ho baka ditshila, ho latela melao ya phepelo ya metsi ya UK. Bafepedi ba metsi ba itshetlehile ka dihlahiswa tse dumelletsweng ke WRAS ho qoba ditlamorao tsa molao, tse kang dikotlo kapa ho qoswa. Di-valve tse sa netefatswang di ka lebisa tshilafatsong, ho hloleheng ha tshebetso, le dikotlong tsa molao.
| Karolo | Tlhaloso |
|---|---|
| Tlhokahalo ea Molao | Li-fitting tsa metsi li tlameha ho latela Melao ea Li-Fitting tsa Metsi ho thibela tšilafalo, litšila le tšebeliso e mpe ea metsi Engelane le Wales. |
| Karolo ea Setifikeiti | Setifikeiti sa WRAS se fana ka tiisetso ea hore li-valve fittings li fihlela maemo ana a molao 'me li loketse ho kenngoa. |
| Phethahatso | Bafepedi ba metsi ba UK, joalo ka United Utilities, ba na le boikarabello ba molao ba ho phethahatsa melao ena ka ho hlahloba lits'ebetso tsa liphaephe le ho fana ka litsebiso bakeng sa ho se latele melao. |
| Liphello tsa ho se Latele Melao | Ho tlōla melaoana ke tlōlo ea molao e ka lebisang nyeoeng, liketsong tsa ho phethahatsa molao ho kenyeletsoa le ho khaoloa ha phepelo ea metsi, le likotlo tsa molao. |
| Tšehetso bakeng sa ho Latela Melao | Setifikeiti se thusa bafepedi ba metsi ho netefatsa ho latela melao ya diphaephe, ho nolofatsa ditlhahlobo le diketso tsa ho phethahatsa molao ho sireletsa bophelo bo botle ba setjhaba. |
WRAS ke mokhatlo o amohelang tumello o entsoeng ka bafepedi ba metsi ba UK. Ba khothalletsa ho latela Melao ea Phepelo ea Metsi (Lisebelisoa tsa Metsi). Ho sebelisa lisebelisoa tsa li-valve tse amohetsoeng ke WRAS ke tsela e tšepahalang ka ho fetisisa ea ho bontša ho latela melao le ho qoba likotsi tsa molao.
Li-valve tse nang le setifikeiti li thusa bafani ba metsi ho boloka polokeho le bokgabane ba sistimi. Setifikeiti se tšehetsa tlhahlobo le ts'ebetso, ho netefatsa hore ke lihlahisoa tse lumellanang le melao feela tse kenang 'marakeng. Ts'ebetso ena e sireletsa bophelo bo botle ba sechaba mme e boloka botšepehi ba phepelo ea metsi a nooang ea UK.
Ho Khetha Lisebelisoa tsa Valve tse se nang Lead, Zero-Leak
Bohlokoa ba Lisebelisoa tse se nang Loto ho Lisebelisoa tsa Valve
Lisebelisoa tse se nang loto li bapala karolo ea bohlokoa ho sireletseng bophelo bo botle ba sechaba. Melao ea UK, ho kenyeletsoa le Melao ea Phepelo ea Metsi (Lisebelisoa tsa Metsi) ea 1999, e behile litekanyetso tse tiileng bakeng sa lisebelisoa tse kopanang le metsi a nooang. Bahlahisi ba rala li-valve fittings ba sebelisa metsoako e kang koporo e hanyetsanang le dezincification (DZR), e fokotsang bokaholimo ba loto ho feta 0.25% ka boima holim'a libaka tse kolobisitsoeng. Mokhoa ona o lumellana le litaelo tsa UK le European Union, ho netefatsa hore metsi a nooang a lula a se na litšila tse kotsi. Koporo ea DZR e fana ka ho tšoarella le ho hanyetsa mafome, e leng se etsang hore e be khetho e ratoang bakeng sa litsamaiso tsa metsi a nooang. Tšepe e sa ruseng le polasetiki e tsoetseng pele le tsona li fana ka mekhoa e meng e se nang loto, e tšehetsang ho latela melao le polokeho ea nako e telele.
Keletso: Kamehla netefatsa tumello ea WRAS ha u khetha li-valve fittings. Setifikeiti sena se tiisa hore sehlahisoa se fihlela maemo a bophelo bo botle le polokeho a UK bakeng sa boleng ba loto le thepa.
Lisebelisoa tse Tloaelehileng tse se nang Loto tse Sebelisoang Li-valve tsa Metsi a Nooang UK:
- koporo e hanyetsanang le dezincification (DZR).
- Tšepe e sa ruseng (likereiti tsa 304 le 316)
- Liplastiki tse kopantsoeng (tse kang PVC, PTFE, le polyurethane)
Mefuta ea Lisebelisoa tsa Valve bakeng sa Mekhoa ea Metsi a Nooang
Li-fitting tsa valve li sebeletsa mesebetsi e fapaneng ka har'a litsamaiso tsa metsi a nooang tsa UK. Khetho e itšetlehile ka ts'ebeliso, taolo e hlokahalang ea phallo, le ho lumellana le likarolo tsa sistimi. Li-fitting tsa hose li tlameha ho lumellana le bophara ba hose ho thibela ho lutla le ho boloka phallo e ntle ea metsi. Ho lumellana ha thepa ho ntse ho le bohlokoa, kaha ho ama polokeho le ho tšoarella.
| Mofuta oa Valve | Tlhaloso le Tšebeliso |
|---|---|
| Li-valve tsa bolo | Disiki e chitja e laola phallo; e tšoarella ka ho tiisa ho babatsehang; e loketse litlhoko tsa ho koaloa ka thata. |
| Li-valve tsa ho hlahloba | Thibela phallo e khutlelang morao; etsa bonnete ba hore phallo e lebile lehlakoreng le le leng; ea bohlokoa bakeng sa thibelo ea tšilafalo; sebetsa ka bohona. |
| Li-valve tsa ho Fokotsa Khatello | Fokotsa khatello ea metsi a kenang ho ea boemong bo sireletsehileng; sireletsa liphaephe hore li se ke tsa senyeha le ho lutla; boloka ts'ebetso ea sistimi e sebetsa hantle. |
| Li-valve tsa Heke | E sebelisoa ho emisa phallo ea metsi ka botlalo; e loketse tlhokomelo kapa ho koaloa ha tšohanyetso; e tiile ebile e tiile. |
| Li-valve tsa Serurubele | Laola phallo ka diski e potolohang; e bobebe ebile e theko e tlase; e sebelisoa liphaepheng tse bophara bo boholo; e tima kapele. |
| Li-valve tsa Solenoid | E laoloa ka motlakase; e sebelisoa litsamaisong tse iketsang bakeng sa taolo e nepahetseng ea phallo; e tloaelehileng ts'ebelisong ea khoebo/indasteri. |
Mebele ea li-valve e ka sebelisa koporo e se nang loto, tšepe e sa ruseng, kapa polasetiki e kopaneng. Litiiso hangata li na le NBR (Nitrile Buna Rubber) bakeng sa maro a sa nke lehlakore kapa EPDM (Ethylene Propylene Diene Monomer) bakeng sa ho hanyetsa mocheso o phahameng. Lisebelisoa tse netefalitsoeng tse kang PVC le polyurethane li khothaletsoa bakeng sa liphaephe le likhokahano, ho netefatsa polokeho le ho tšoarella.
Ho Tsamaellana ha Lintho le ho Tšoarella
Ho tsamaellana ha thepa ho susumetsa ka ho toba nako le ho tšepahala ha li-fitting tsa li-valve. Koporo le tšepe e sa hloekang li fana ka matla a mangata a mechini, empa khetho e sa lokelang e ka lebisa mathateng a ho bola. Koporo e hananang le ho bola e hanela ho bola 'me e boloka matla, ha tšepe e sa hloekang e fana ka khanyetso e ntle ntle le libakeng tse nang le chloride e ngata, moo ho ka bang le masoba. Lipolasitiki tse kang PTFE li fana ka khanyetso e ikhethang ea lik'hemik'hale le ho thibela ho senyeha.
Li-fitting tsa li-valve li etsoa liteko tse matla tlas'a setifikeiti sa WRAS, ho kenyeletsoa tlhahlobo ea kutlo, liteko tsa kholo ea likokoana-hloko, le tlhahlobo ea ho ntšoa ha tšepe. Liteko tsena li etsisa maemo a sebele a lefats'e, ho netefatsa hore thepa ha e ame boleng ba metsi kapa ho tšoarella ha sistimi hampe. Balekane ba OEM ba tšehetsa bahlahisi ba nang le boiphihlelo ba tekheniki, ba thusa ho boloka boleng ba sehlahisoa ho pholletsa le potoloho ea bophelo.
Hlokomela: Meralo e kopaneng e kopanyang ditshipi le dipolasetiki e ntlafatsa ho tshwarella le tshebetso. Kamehla nahana ka k'hemistri e ikgethang ya metsi le maemo a tikoloho ha o kgetha thepa.
Ho kenya, ho hlokomela le ho thibela ho bola
Ho kenya hantle le tlhokomelo e nepahetseng khafetsa ho eketsa nako ea bophelo ba li-fitting tsa li-valve le ho thibela ho bola. Litlhahlobo tsa kamehla li thusa ho lemoha matšoao a pele a ho tsofala, mafome, kapa masoba. Litlhahlobo tse bonahalang tsa ho fifala ha 'mala le ho lutla ho potoloha litiiso li netefatsa botšepehi ba sistimi. Mekhoa ea ho hloekisa e kenyelletsa ho borashe ka mechine, lik'hemik'hale tse sireletsehileng, le ho hlatsoa ka metsi kapa li-solvent.
Basebelisi ba sebelisa likoahelo tse sireletsang ho sireletsa li-valve boemong ba leholimo bo bobe. Litaolo tsa tikoloho tse kang taolo ea mongobo le ho thibela mocheso li fokotsa kotsi ea ho bola. Tšebeliso ea li-inhibitor tsa ho bola—anodic, cathodic, mixed, kapa volatility—e sireletsa li-valve nakong ea polokelo le ts'ebetso. Litlhare tsa bokaholimo tse kang epoxy, PTFE, polyamide, le polyurethane coating li eketsa ho hanyetsa ho bola.
- Tlhahlobo ea kamehla bakeng sa mafome, ho tsofala le ho lutla ha metsi
- Ho hlwekisa le ho hlatswa metsi ho tlosa ditshila
- Tšebeliso ea likoahelo tse sireletsang le taolo ea tikoloho
- Tšebeliso ea lithibela-mafome le lipeiti tsa holim'a metsi
Kotsi ea ts'enyeho e eketseha ka sekhahla se tlase sa phallo, e leng se etsang hore lintho tse tiileng li lule 'me li etse mapetso. Sekhahla se phahameng sa phallo se ka lebisa khoholehong le ho taboha ha metsi. Li-lining tsa ceramic le li-polyurethane coating li ntlafatsa ho hanyetsa liphello tsena. Tlhokomelo e thibelang le tlhokomelo ea boemo li ntse li le bohlokoa bakeng sa ho lelefatsa bophelo ba valve le pompo lits'ebetsong tsa metsi a nooang.
Li-valve tse nang le setifikeiti, tse se nang loto, tse se nang lerata li sireletsa bophelo bo botle ba sechaba, li tšehetsa polokeho ea metsi, 'me li fana ka boleng ba nako e telele.
| Melemo | Tšusumetso |
|---|---|
| Ho tšoarella | Teko e pharaletseng e netefatsa ts'ebetso e tšepahalang le poloko ea metsi. |
| Polokeho ea Metsi | Lintho tse se nang chefo, tse hanelang mafome li thibela likotsi tsa tšilafalo. |
| Tšepo ea Bareki | Setifikeiti se haha tšepo ho bafani ba metsi le botšepehi ba sistimi. |
LBH
Tumello ea WRAS e bolela'ng bakeng sa li-fitting tsa li-valve?
Tumello ea WRAS e tiisa hore li-valve fittings li fihlela maemo a polokeho ea metsi a UK. Li sebelisa thepa e seng chefo 'me li etsoa liteko tse matla. Bafani ba metsi ba tšepa lihlahisoa tse netefalitsoeng ke WRAS bakeng sa ho latela melao.
Keletso: Kamehla hlahloba setifikeiti sa WRAS pele o kenya.
Ke thepa efe e netefatsang hore ho na le li-valve tse se nang loto?
Bahlahisi ba sebelisa koporo ea DZR, tšepe e sa ruseng, le polasetiki e nang le setifikeiti. Lisebelisoa tsena li hanela mafome 'me ha li ntše lintho tse kotsi. Li tšehetsa polokeho ea metsi ea nako e telele.
- Koporo ea DZR
- Ts'epe e sa beng le mabali
- Lipolasitiki tsa PVC le PTFE
Basebetsi ba lokela ho hlahloba li-valve hangata hakae?
Basebetsi ba lokela ho hlahloba di-valve tse kentsweng dikgwedi tse ding le tse ding tse tsheletseng. Diteko tse etswang kgafetsa di thusa ho lemoha ho dutla ha metsi, mafome le ho tsofala. Ho lemoha kapele ho thibela tshilafatso mme ho eketsa nako ya tshebetso.
| Maqhubu a Tlhahlobo | Ketso e Khothaletsoang |
|---|---|
| Likhoeli tse ling le tse ling tse 6 | Tlhahlobo e bonahalang bakeng sa ho dutla ha metsi |
| Selemo le selemo | Ts'ebetso e hloekileng le ea teko |
Nako ea poso: Phato-13-2025