Sehlahisoa se Molemohali sa Mini Backflow Prevention se ka Fepela Linaheng Tsohle Tse Entsoeng ka TWS
Tlhaloso:
Bongata ba baahi ha ba kenye sesebelisoa sa ho thibela phallo ea metsi ka har'a liphaephe tsa bona tsa metsi. Ke batho ba 'maloa feela ba sebelisang valve e tloaelehileng ea ho hlahloba ho thibela ho theoha ha metsi. Kahoo e tla ba le monyetla o moholo oa ho sebelisa metsi. 'Me mofuta oa khale oa sesebelisoa sa ho thibela phallo ea metsi o bitsa chelete e ngata ebile ha ho bonolo ho o ntša. Kahoo ho ne ho le thata haholo ho sebelisoa haholo nakong e fetileng. Empa joale, re nts'etsapele mofuta o mocha ho rarolla tsohle. Sesebelisoa sa rona sa ho thibela phallo ea metsi se tla sebelisoa haholo ho basebelisi ba tloaelehileng. Ena ke sesebelisoa sa ho kopanya taolo ea matla a metsi ka ho laola khatello e ka har'a phaephe ho phethahatsa phallo ea tsela e le 'ngoe. E tla thibela phallo ea metsi, e qobe ho kheloha ha mithara ea metsi le ho thibela ho theoha ha metsi. E tla netefatsa metsi a nooang a sireletsehileng le ho thibela tšilafalo.
Litšobotsi:
1. Moralo o otlolohileng ka ho feletseng oa ho teteana, ho hanyetsa phallo e tlase le lerata le tlase.
2. Sebopeho se senyane, boholo bo bokgutshwane, ho kenya habonolo, ho boloka sebaka sa ho kenya.
3. Thibela ho fetoha ha mithara ya metsi le mesebetsi e phahameng ya ho thibela ho thekesela ha metsi,
Ho nosetsa metsi ka thata ho thusa ho laola metsi.
4. Thepa e khethiloeng e na le bophelo bo bolelele ba tšebeletso.
Molao-motheo oa ho Sebetsa:
E entsoe ka li-valve tse peli tsa ho hlahloba tse fetang ka har'a khoele
khokahano.
Sena ke sesebelisoa sa ho kopanya taolo ea matla a metsi ka ho laola khatello e ka har'a phaephe ho phethahatsa phallo ea tsela e le 'ngoe. Ha metsi a fihla, li-disc tse peli li tla buleha. Ha e ema, e tla koaloa ke seliba sa eona. E tla thibela phallo ea metsi ho khutlela morao 'me e qobe ho kheloha ha mithara ea metsi. Valve ena e na le molemo o mong: Tiisetso ea toka pakeng tsa mosebelisi le Mokhatlo oa Phepelo ea Metsi. Ha phallo e le nyane haholo hore e ka e tjhaja (joalo ka: ≤0.3Lh), valave ena e tla rarolla boemo bona. Ho ea ka phetoho ea khatello ea metsi, mithara ea metsi ea reteleha.
Ho kenya:
1. Hloekisa phaephe pele o kenya sale.
2. Valve ena e ka kenngoa ka ho rapama le ka ho otloloha.
3. Netefatsa hore phallo e mahareng e lebile hokae le hore na motsu o lebile hokae ha o kenya.
Litekanyo:
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