✧ Kufotokozera
Ma valve oyezera ma flapper amaphatikizapo ma valve oyezera pamwamba ndi ma valve oyezera ma flapper omwe ali pamzere, omwe amalola madzi kuyenda kupita ku chitsime ndikuletsa kuyenda mmbuyo. Pa ma valve oyezera ma dart, kuyenda kudzatsegula dart pogonjetsa mphamvu yaying'ono ya kasupe.
Pamene madzi akuyenda mosiyanasiyana, kasupe amakankhira dart pa chosungira mpando kuti aletse madzi kubwerera m'mbuyo.
Timapereka ma valve oyesera okhazikika komanso obwerera m'mbuyo. Ndipo tapanganso ma valve oyesera kuti agwiritsidwe ntchito mopanda mphamvu motsatira NACE MRO175.
Valvu Yoyang'anira Chophimba Chophimba cha API 6A ndiyo njira yabwino kwambiri yowongolera kuyenda kwa madzi mu ntchito zopangira mafuta ndi gasi. Kaya ndi yokhazikitsa zatsopano kapena yokonzanso zida zomwe zilipo, valve yoyang'anira iyi ndi gawo lofunikira kwambiri pakuwonetsetsa kuti mitengo ya zitsime ndi mitengo ya Khrisimasi ikugwira ntchito bwino komanso motetezeka mumakampani opanga mafuta ndi gasi.
(1). Ma valve oyesera ndi oyenera kusiyanitsa madzi omalizidwa, kukonza kuthamanga kwamphamvu komanso kukonza zida zomangira.
(2). Pamwamba pa valve internal baffle pamakhala ndi rabara ya nitrile-butadiene kuti pakhale nthawi yayitali.
(3). Ulusi ndi cholumikizira cha nkhope ya mpira zimagwiritsa ntchito muyezo waku America.
(4). Vavu imapangidwa ndi chitsulo cholimba cha alloy ndipo imagwiritsa ntchito mgwirizano wa union.
✧ Zofotokozera
| Kalasi Yopangira Zinthu | AA-EE |
| Zofalitsa Zogwira Ntchito | Mafuta osakonzedwa ndi gasi wachilengedwe |
| Muyezo Wogwiritsira Ntchito | API 6A |
| Kupanikizika kwa Ntchito | 3000~15000 psi |
| Mtundu Wopangira | Forge |
| Zofunikira pakuchita bwino | PR 1-2 |
| Mulingo Wofotokozera Zamalonda | PSL 1-3 |
| Mwadzina Bore awiri | 2"; 3" |
| Mtundu Wolumikizira | Mgwirizano, Ulusi wa Bokosi, Ulusi wa Pin |
| Mitundu | Flapper, Dart |
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