
API 594 ndi muyezo wa American Petroleum Institute womwe umakhudza kapangidwe, zipangizo, miyeso, mayeso, ndi kuwunika ma valve oyesera. Makamaka, umayang'ana kwambiri pa zofunikira za ma valve oyesera awiriawiri, omwe amadziwikanso kuti ma valve oyesera wafer, omwe amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana kuphatikiza mafuta ndi gasi, petrochemical, ndi kuyeretsa. Muyezo wa API 594 umafotokoza zofunikira za ma valve oyesera awiriawiri malinga ndi kapangidwe kawo, kuchuluka kwa kutentha kwa kupanikizika, zipangizo, kutsimikizika kwa kapangidwe, ndi njira zoyesera. Muyezo uwu umatsimikizira kuti ma valve akukwaniritsa zofunikira zina zogwirira ntchito komanso chitetezo pakugwiritsa ntchito zomwe zimaphatikizapo kupewa kuyenda mobwerera m'mbuyo. Zinthu zazikulu za ma valve oyesera awiriawiri opangidwa motsatira miyezo ya API 594 zitha kuphatikizapo kapangidwe ka wafer, mbale zodzaza ndi masika, ndi kapangidwe kakang'ono, kopepuka koyenera kuyikidwa pakati pa ma flange. Ma valve awa nthawi zambiri amakondedwa chifukwa cha kutsika kwawo kwa kuthamanga, kutseka kodalirika, komanso kusavuta kuyika ndi kukonza. Ngati muli ndi mafunso enieni okhudza ma valve oyesera awiriawiri opangidwa motsatira miyezo ya API 594 kapena mukufuna zambiri zokhudza zomwe amafotokoza, zipangizo, kapena zofunikira zoyesera, chonde musazengereze kufunsa zambiri.
1. kutalika kwa kapangidwe kake ndi kochepa, kutalika kwa kapangidwe kake ndi 1/4 mpaka 1/8 yokha ya valavu yowunikira flange yachikhalidwe
2. kukula kwake kakang'ono, kulemera kwake kopepuka, kulemera kwake ndi 1/4 mpaka 1/20 yokha ya valavu yoyesera yotseka pang'onopang'ono yachikhalidwe
3. Disk ya valavu yoyezera clamp imatsekedwa mwachangu, ndipo kuthamanga kwa nyundo yamadzi kumakhala kochepa
4. chitoliro chofufuzira chopingasa kapena choyimirira chingagwiritsidwe ntchito, chosavuta kuyika
5. Njira yoyendera valavu yoyezera clamp ndi yosalala, kukana kwa madzi ndi kochepa
6. Kuchitapo kanthu mwanzeru, kugwira ntchito bwino kosindikiza
7. Kugunda kwa diski ndi kochepa, mphamvu yotseka valavu yowunikira clamping ndi yaying'ono
8. kapangidwe kake konse, kosavuta komanso kakang'ono, mawonekedwe okongola
9. moyo wautali wautumiki, kudalirika kwambiri
Pakutsegula ndi kutseka valavu yachitsulo chopangidwa ndi chitsulo, chifukwa kukangana pakati pa diski ndi pamwamba pa valavu kumakhala kochepa kuposa kwa valavu ya chipata, sikutha kusweka.
Kutsekeka kapena kutseka kwa tsinde la valavu ndi kochepa, ndipo kuli ndi ntchito yodalirika yodulira, ndipo chifukwa kusintha kwa doko la mpando wa valavu kumafanana ndi kutsekeka kwa diski ya valavu, ndikoyenera kwambiri kusintha kuchuluka kwa madzi. Chifukwa chake, valavu yamtunduwu ndi yoyenera kwambiri kudula kapena kulamulira ndi kugwedeza.
| Chogulitsa | API 594 Dual Plate Check Valve |
| M'mimba mwake mwa dzina | NPS 1/2”, 3/4”, 1”, 1-1/4”, 1-1/2”, 2”, 3”, 4”, 6”, 8”, 10”, 12”, 14”, 16”, 18”, 20” 24”, 28”, 32”, 36”, 40”, 48” |
| M'mimba mwake mwa dzina | Kalasi 900, 1500, 2500. |
| Kulumikiza Komaliza | Yopindika (RF, RTJ, FF), Yolumikizidwa. |
| Ntchito | Hammer Yolemera, Palibe |
| Zipangizo | A216 WCB, WC6, WC9, A352 LCB, A351 CF8, CF8M, CF3, CF3M, A995 4A, A995 5A, A995 6A, Alloy 20, Monel, Inconel, Hastelloy, Aluminiyamu Bronze ndi alloy ina yapadera. |
| A105, LF2, F5, F11, F22, A182 F304 (L), F316 (L), F347, F321, F51, Alloy 20, Monel, Inconel, Hastelloy | |
| Kapangidwe | Chivundikiro Cholimba, Chivundikiro Chosindikizidwa Chopanikizika |
| Kapangidwe ndi Wopanga | API 6D |
| Maso ndi Maso | ASME B16.10 |
| Kulumikiza Komaliza | ASME B16.5 (RF & RTJ) |
| ASME B16.25 (BW) | |
| Kuyesa ndi Kuyang'anira | API 598 |
| Zina | NACE MR-0175, NACE MR-0103, ISO 15848, API624 |
| Ikupezekanso pa | PT, UT, RT,MT. |
Monga katswiri wa API 594 Dual Plate Check Valve komanso wogulitsa kunja, tikulonjeza kupatsa makasitomala ntchito yabwino kwambiri yogulitsa pambuyo pogulitsa, kuphatikizapo izi:
1. Perekani malangizo ogwiritsira ntchito mankhwala ndi malingaliro osamalira.
2. Pa zovuta zomwe zachitika chifukwa cha mavuto a khalidwe la malonda, tikulonjeza kupereka chithandizo chaukadaulo ndi kuthetsa mavuto mkati mwa nthawi yochepa kwambiri.
3. Kupatula kuwonongeka komwe kumachitika chifukwa chogwiritsa ntchito bwino, timapereka ntchito zokonzanso ndi kusintha kwaulere.
4.Tikulonjeza kuyankha mwachangu zosowa za makasitomala panthawi ya chitsimikizo cha malonda.
5. Timapereka chithandizo chaukadaulo cha nthawi yayitali, upangiri pa intaneti ndi maphunziro. Cholinga chathu ndikupatsa makasitomala chithandizo chabwino kwambiri ndikupangitsa kuti zomwe makasitomala amakumana nazo zikhale zosangalatsa komanso zosavuta.