Kutheni ukhetha iivalvu zeglobe

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1. Ubuchule bokulawula ukuhamba kwamanzi ngokuchanekileyo

Ulawulo oluhle kakhulu lokuthomalalisa: Intshukumo ethe tye okanye ecacileyo phakathi kwesiseko sevalvu (idiski yevalvu) kunye nesihlalo sevalvu ivumela ukulungiswa okucokisekileyo kokuhamba. Ukuvulwa kwevalvu kuhambelana notshintsho lokuhamba, okwenza ifaneleke ukusetyenziswa okufuna ukulawulwa rhoqo.

Ukuchaneka okuphezulu kommiselo: Xa kuthelekiswa neevalvu zesango (ezisetyenziselwa kakhulu ukusika) kunye neevalvu zebhabhathane (ezinommiselo ophantsi kommiselo), iivalvu zeglobe zilungele ngakumbi iinkqubo ezifuna ulawulo oluchanekileyo, ezifana nomphunga kunye nemidiya yamakhemikhali.

2. Ukusebenza kakuhle kokutywina

Ukonakala okuncinci kwiindawo zokutywina: Ukungqubana okutyibilikayo phakathi kwediski yevalvu kunye neendawo zokutywina zesihlalo sevalvu kuncinci ngexesha lokuvulwa nokuvalwa, kwaye zinokulungiswa ngokusila. Ukuthembeka kokutywina kuphezulu.

Izinga lokuvuza eliphantsi: Xa ivaliwe ngokupheleleyo, uxinzelelo oluphakathi lunceda idiski yevalvu ukuba icinezele ngokuqinileyo kwisihlalo sevalvu, kwaye ukusebenza kokutywina kwecala elingasemva kulungile (ezinye iindlela zoyilo zinokuxhasa ukutywina kwecala elingasemva).

3. Ukuvula nokuvala okufutshane, ukusebenza lula

Ukubetheka kwesiqu sevalvu emfutshane: Xa kuthelekiswa neevalvu zesango ezifuna ukuvulwa ngokupheleleyo okanye ukuvalwa ngokupheleleyo ukuze kuvulwe kwaye kuvalwe ngokupheleleyo, ulawulo lwevalvu yokumisa lunokufezekiswa ngokujikelezisa isiqu sevalvu nge-90° okanye ukubetheka okufutshane. Isantya sokuvula nokuvala siyakhawuleza.

I-torque yokusebenza ephantsi: Ingakumbi kwiimeko ezinoxinzelelo oluphezulu oluncinci, ukusebenza ngesandla kulula ngakumbi kunokusebenza ngeevalvu zesango.

4. Ulwakhiwo oluncinci, kulula ukulugcina

Umzimba wevalvu ulula ngendlela eyilwe ngayo: Ngexesha lokuqhaqha nokulungisa, akukho mfuneko yokususa umzimba wevalvu kumbhobho. Okufunekayo kukuvula isigqubuthelo sevalvu ukuze kutshintshwe idiski yevalvu, isihlalo sevalvu, kunye nezinye izinto zangaphakathi.

Ifanelekile kuxinzelelo oluphezulu kunye nobushushu obuphezulu: Isetyenziswa kakhulu kumphunga, emanzini anoxinzelelo oluphezulu, kwiimveliso zeoyile, nakwiindawo ezisebenzisa i-corrosive media (ezifana nemibhobho yeekhemikhali), kwaye inokumelana noxinzelelo okunamandla.

5. Uluhlu olubanzi lweendaba ezifanelekileyo

I-viscosity ephezulu okanye i-media equlethe amasuntswana: Xa kuthelekiswa nee-ball valves okanye ii-butterfly valves, uyilo lwe-flow channel ye-globe valve lunokwamkela inqanaba elithile le-viscous fluids (ii-flow channels ezithambekileyo okanye ii-globe valves zohlobo lwe-Y kufuneka zikhethwe).

Umphunga oshushu kakhulu noxinzelelo oluphezulu: Usetyenziswa kakhulu kwiinkqubo zomphunga wezityalo zamandla, amanzi okufunxa ibhoyila, njl. Ukusebenza kwawo kobushushu noxinzelelo kuphezulu kuneevalvu ezininzi zebhabhathane.