Imisebenzi eqakathekileko nemigomo yokukhetha yamavalvu

Amavalvu ayingcenye eqakathekileko yamaphayiphi wamabubulo begodu adlala indima eqakathekileko emsebenzini wokukhiqiza.

I. Umsebenzi omkhulu wevalvu

1.1 Ukutjhugulula nokusika imidiya:ivalvu yesango, ivalvu yevivane, i-valve yebholo ingakhethwa;

1.2 Vimbela ukubuyela emuva kwendlela:ivalvu yokuhlolaingakhethwa;

1.3 Lungisa umfutho nezinga lokugeleza kwendawo: ivalvu yokuvala ongakhetha kiyo kanye nevalvu yokulawula;

1.4 Ukuhlukaniswa, ukuhlanganisa nofana ukusabalaliswa kwemidiya: ivalvu yepulagi,ivalvu yesango, ivalvu yokulawula ingakhethwa;

1.5 Vimbela umfutho ophakathi ungadluli inani elibekiweko ukuqinisekisa ukusebenza okuphephileko kwepayipi nofana imitjhini: ivalvu yokuphepha ingakhethwa.

Ukukhethwa kwamavalvu kuvela khulukhulu embonweni wokusebenza ngaphandle kwemiraro nokonga.

II. Umsebenzi wevalvu

Kunezinto ezimbalwa eziqakathekileko ezibandakanyekako, begodu nansi ikulumo enabileko ngazo:

2.1 Ubujamo be-fluid edlulisako

Umhlobo we-Fluid: Ukuthi u-fluid uketshezi, irhasi, nofana umhwamuko kuthinta ngqo ukukhetha kwevalvu. Ukwenza isibonelo, amanzi angatlhoga ivalvu yokuvala, kuthi amagesi angafaneleka khulu kumavalvu webhola. Ukugqwala: Iinsetjenziswa ezigqwalako zitlhoga izinto ezijamelana nokugqwala ezifana nensimbi engagqwali nofana ama-alloy akhethekileko. Ukunamathelana: Amanzi anamathelana khulu angatlhoga ububanzi obukhulu nofana amavalvu aklanyelwe ngokukhethekileko ukwehlisa ukuvaleka. Okuqukethwe ziinhlayiya: Amanzi aneenhlayiya eziqinileko angatlhoga izinto ezijamelana nokuguga nofana amavalvu aklanyelwe ngokukhethekileko, njengamavalvu wokunciphisa.

2.2 Umsebenzi wevalvu

Ukulawula ukutjhugulula: Esikhathini lapho kutlhogeka khona umsebenzi wokutjhugulula kwaphela, amavalvu webholo nofanaamavalvu wesangoziinkhetho ezijayelekileko.

Ukulawulwa kokugeleza: Lokha nakutlhogeka ukulawulwa kokugeleza okunembileko, amavalvu we-globe nofana amavalvu wokulawula afaneleka khulu.

Ukukhandela ukubuyela emuva:Hlola amavalvuzisetjenziselwa ukukhandela ukubuyela emuva kwe-fluid.

I-Shunt nofana i-Merge: I-valve eneendlela ezintathu nofana i-valve eneendlela ezinengi isetjenziselwa ukuphambukisa nofana ukuhlanganisa.

2.3 Ubukhulu bevalvu

Ubukhulu bephayiphu: Ubukhulu bevalvu kufanele bufane nobukhulu bephayiphu ukuqinisekisa ukudlula kwe-fluid. Iimfuneko zokugeleza: Ubukhulu bevalvu butlhoga ukuhlangabezana neemfuneko zokugeleza kwesistimu, begodu inkulu khulu nofana encani khulu kuzokuthinta ukusebenza kuhle. Isikhala sokufaka: Ukulinganiselwa kwesikhala sokufaka kungaba nomthelela ekukhethweni kobukhulu bevalvu.

2.4 Ukulahlekelwa kumelana kwevalvu

Ukwehla komfutho: Ivalvu kufanele yehlise ukwehla komfutho ukugwema ukuthinta ukusebenza kuhle kwehlelo.

Umklamo wetjhaneli yokugeleza: Amavalvu apheleleko, afana namavalvu webhola apheleleko, anciphisa ukulahlekelwa kudonsa.

Umhlobo weValvu: Amanye amavalvu, afana namavalvu we-butterfly, anokujamelana okuncani lokha nakavulwa, okwenza bona alungele izehlakalo zokwehla kwegandelelo eliphasi.

2.5 Izinga lokutjhisa lokusebenza kanye nomfutho wokusebenza wevalvu

Ibanga lokutjhisa: Iinsetjenziswa zevalvu zitlhoga ukutjhugulukela emazingeni womtjhiso we-fluid, begodu izinto ezijamelana namazinga womtjhiso zitlhoga ukukhethwa eendaweni ezinezinga lokutjhisa eliphezulu nofana eliphasi.

Izinga lomfutho: Ivalvu kufanele ikghone ukujamelana nomfutho omkhulu wokusebenza wesistimu, begodu ihlelo elinomfutho omkhulu kufanele likhethe ivalvu enezinga eliphezulu lomfutho.

Umthelela ohlanganisiweko wezinga lokutjhisa nokugandeleleka: Indawo yokutjhisa ephezulu neyomfutho ephezulu idinga ukucabangela okukhethekileko kwamandla wezinto kanye nezakhiwo zokuvala.

2.6 Into yevalvu

Ukujamelana nokugqwala: Khetha izinto ezifaneleko ngokuya ngokugqwala kwe-fluid, njenge-stainless steel, i-Hastelloy, njll.

Amandla womtjhini: Into yevalvu itlhoga ukuba namandla aneleko womtjhini ukujamelana nomfutho wokusebenza.

Ukutjhuguluka emazingeni womtjhiso: Iinsetjenziswa zitlhoga ukuzivumelanisa namazinga womtjhiso wokusebenza, indawo enamazinga womtjhiso aphezulu itlhoga izinto ezijamelana nokutjhisa, begodu indawo enamazinga womtjhiso aphasi idinga izinto ezijamelana namakhaza.

Umnotho: Ngokwesisekelo sokuhlangabezana neemfuneko zokusebenza, khetha izinto ezinomnotho ongcono.