Pneumatic ball valvee bolela thepa ea valve ea bolo e nang le mochine oa pneumatic valve.E tsamaisoa ke actuator, valve e tla bula kapa e koalehe ka bo eona.Ho o thusa ho eketsa tlhahiso le ho fumana melemo e mengata.E sebelisoa haholo holimela tse nolofatsang, li-membrane filtration systems, mekhoa ea ho hloekisa metsi ka holim'a metsi joalo-joalo.Tlhokahalo efe kapa efe ea li-valve tsa bolo ea moea, ikutloe u lokolohile ho ikopanya le rona ho sales@covnavalves.com, 'me re thabela ho u thusa ho rarolla tharollo ea valve.

COVNA e thehiloe ka 2000, e sebetsa ka ho khetheha ka li-valve tse ikemetseng Chaena.Re na le ISO9001: 2015 setifikeiti.Mefuta e mengata ea lihlahisoa bakeng sa khetho ea hau ho kenyelletsa li-valve tsa bolo ea pneumatic, li-valve tsa bolo ea motlakase joalo-joalo.Boiphihlelo bo ruileng bo re thusa ho tseba valve le indasteri ka botebo.Re tla fana ka tharollo ho ea ka litlhoko tsa hau.

Pipe ea GFe thehiloe ka 1802, e na le ntlo-khōlō Switzerland, ’me hona joale e na le liofisi linaheng tse 31 lefatšeng ka bophara.Kahoo ho sa tsotellehe hore na u Amerika Leboea kapa Europe, u ka fumana lihlahisoa tsa GF.Ofisi ea lehae e tla u fa tšebeletso ea karabo e potlakileng.
GF e na le lihlahisoa tse fetang 60,000, tse ka u fang tharollo e felletseng ea sistimi.Lihlahisoa li kenyelletsa li-valve tsa bolo ea pneumatic, li-valve tsa bolo ea polasetiki, liphaephe le lihlahisoa tse ling tsa indasteri.

Bürkertke moetapele oa tsamaiso ea mokelikeli 'me o sebelisitse nako e ngata le matla tšimong ea taolo ea metsi le khase ka lilemo tse 70.Bürkert e na le liofisi libakeng tse ngata ho pota lefatše, ho kenyeletsoa China, Russia, Netherlands, Canada le libaka tse ling, ho fana ka litšebeletso tsa karabo e potlakileng bakeng sa litlhoko tsa hau tse potlakileng.

Valve ea Gemini, e thehiloeng ka 1917, ke moetsi oa li-valve oa Amerika eo lihlahisoa tsa hae li sebelisoang tsamaisong ea ho laola metsi.Lihlahisoa li entsoe ka 100% United States.Gemini Valve e na le ntlo-khōlō ea eona United States 'me e na le lisebelisoa tse tsoetseng pele ka ho fetisisa ho eketsa tlhahiso le ho netefatsa boleng ba sehlahisoa.Gemini Valve e fana ka mefuta e fapaneng ea li-valve tsa pneumatic ball ho fihlela litlhoko tsa hau tse fapaneng tsa li-valve.

MOGASe thehiloe ka 1973 mme e entse katoloso ea lefats'e.Hona joale, e na le litsi tsa thekiso le litšebeletso Chaena, Australia, Amerika Leboea, Europe le libakeng tse ling.MOGAS e shebane le bareki 'me e fana ka litharollo tse entsoeng ka mokhoa o ikhethileng.MOGAS e tšepisa ho fa moreki e mong le e mong lihlahisoa tse ntle haholo, lits'ebeletso, tsebo le bokhoni bo lumellanang.

E thehiloe ka 1991,Valworxke e 'ngoe ea li-valve tse itlhommeng pele tsa ISO9001 tse netefalitsoeng, tse nang le letoto le felletseng la li-valve tse iketsetsang.Valworx e ikemiselitse ho fana ka litšebeletso tsa karabelo e potlakileng tse fanoang ka letsatsi lona leo.Lihlahisoa li kenyelletsa li-valve tsa bolo ea tšepe ea pneumatic, li-valve tsa bolo ea sanitary, li-valve tsa bolo ea pneumatic, joalo-joalo.