Mofuta oa "stop valve" oa "silent check valve" ke valve e sebelisetsoang ho fetola phallo ea phaephe.E na le ntho e tsamaeang e bōpehileng joaloka disc le setulo sa selikalikoe se tsitsitseng se kentsoeng ka 'mele o pota-potileng ka kakaretso.Ho tloha ka 2020, 'maraka oa lefats'e oa li-valve tsa cheke o boleng ba lidolara tse limilione tse xx mme o lebelletsoe ho fihla ho lidolara tse limilione tse xx bofelong ba 2026, ka sekhahla sa kholo ea selemo le selemo sa xx% nakong ea 2021-2026.(Sena ke sehlahisoa sa rona sa morao-rao. Tlaleho ena e boetse e sekaseka phello ea COVID-19 ho valve e koalang le ho e nchafatsa ho latela maemo a hajoale (haholo-holo ponelopele)) Tlaleho ea lipatlisiso e kopanya tlhahlobo ea lintlha tse fapaneng tse khothaletsang kholo ea 'maraka. .E theha mekhoa, litšitiso le matla a ho khanna a fetolang 'maraka ka tsela e ntle kapa e mpe.Karolo ena e boetse e fana ka likarolo tse fapaneng tsa 'maraka le lits'ebetso tse ka amang mmaraka nakong e tlang.Lintlha tse qaqileng li itšetlehile ka mekhoa ea morao-rao le liketsahalo tsa bohlokoa tsa histori.Karolo ena e boetse e fana ka tlhahlobo ea 'maraka oa lefats'e le tlhahiso ea mofuta o mong le o mong ho tloha 2015 ho ea ho 2026. Karolo ena e boetse e bua ka tlhahiso ea sebaka se seng le se seng ho tloha 2015 ho ea 2026. Theko ka mofuta o mong le o mong e kenyelelitsoe tlalehong ho tloha 2015 ho ea ho 2026; moetsi ho tloha 2015 ho 2020, sebaka ho tloha 2015 ho 2020, le theko ea lefats'e ho tloha 2015 ho ea ho 2026. Tlhahlobo e pharaletseng ea lithibelo tse teng tlalehong e ile ea etsoa, ​​​​e bapisoa le mokhanni, 'me e siea sebaka sa moralo oa leano.Lintlha tse koahelang kholo ea 'maraka li bohlokoa, hobane hoa utloahala hore lintlha tsena li tla rala litsela tse fapaneng ho nka menyetla ea phaello e teng' marakeng o ntseng o hola.Ho phaella moo, maikutlo a litsebi tsa 'maraka a ne a utloisisoa ka botebo ho utloisisa' maraka hantle.Libapali tse ka sehloohong 'marakeng li kenyelletsa Valvotubi, Henry Pratt, Flomatic Valve, Milliken Valves, joalo-joalo Tlaleho e akaretsa United States, Canada, Germany, France, United Kingdom, Italy, Russia, China, Japan, Korea Boroa, Taiwan, Asia Boroa-bochabela, Mexico le Brazil.Libaka tse kholo tse koahetsoeng ke tlaleho ke Amerika Leboea, Europe, Asia Pacific le Latin America.Tlaleho e hlophisitsoe ka mor'a ho shebella le ho ithuta lintlha tse fapaneng tse khethollang kholo ea sebaka (joaloka boemo ba moruo, tikoloho, sechaba, theknoloji, le lipolotiki tsa sebaka se itseng).Bahlahlobisisi ba ithutile lekeno, tlhahiso le lintlha tsa moetsi sebakeng ka seng.Karolo ena e sekaseka chelete e kenang le bophahamo ba sebaka nakong ea bolepi ho tloha 2015 ho isa 2026. Litlhahlobo tsena li tla thusa babali ho utloisisa boleng bo ka bang teng ba matsete a sebaka se itseng.Karolo ena ea tlaleho e supa baetsi ba ka sehloohong 'marakeng.E ka thusa babali ho utloisisa maano le tšebelisano ea libapali tse shebaneng le tlholisano ea ntoa 'marakeng.Tlaleho e felletseng e sekaseka mmaraka ho tsoa ponong e nyane.Babali ba ka tseba sebaka sa moetsi ka ho utloisisa lekeno la lefats'e la moetsi, theko ea lefats'e ea moetsi, le bophahamo ba tlhahiso ea moetsi nakong ea kemiso ho tloha 2015 ho isa 2019.