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Yav dhau los: Lub qhov rooj valve tes Tom ntej no: Lub ntiaj teb oxygen valve
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Lub valve no yog ua los ntawm lub thav duab, lub rooj vag, txoj kev qhia, daim kab xev kaw thiab lub foob hloov kho tau. Nws muaj cov yam ntxwv hauv qab no: cov qauv yooj yim, lub foob zoo, tiv thaiv kev sib txhuam zoo dua, yooj yim rau kev teeb tsa thiab ua haujlwm, ua haujlwm ntev dua thiab siv dav thiab lwm yam.
Lub valve yog dav siv hauv kev tswj hwm hauv nroog, kev txuag dej, kev kho dej phwj tuaj thiab lwm yam. Nws tuaj yeem ua haujlwm los ntawm phau ntawv, hluav taws xob thiab pneumatic. Qhov kawg txuas muaj hom phab ntsa, hom flange thiab hom raj xa dej.


| Tsis yog. | Ib feem | Khoom siv |
| 1 | Kev nqa khoom | Hlau cam khwb cia |
| 2 | Kev txhawb nqa | Hlau Casrbon / Hlau Stainless |
| 3 | Ncej | Cov hlau tsis xeb |
| 4 | Kev txhawb nqa phau ntawv qhia | Cov hlau carbon |
| 5 | Lub foob | Tooj dag |
| 6 | Rooj vag | Hlau nplaum |
| 7 | Kev taw qhia tsheb ciav hlau | Hlau nplaum |
| 8 | Lub cev | Hlau nplaum |

| Loj | K | D1 | G | H1 | L | nd | H |
| DN200 | 307 | 200 | 385 | 200 | 64 | ||
| DN250 | 384 | 250 | 482 | 250 | 85 | ||
| DN300 | 461 | 300 | 578 | 300 | 95 | ||
| DN400 | 615 | 400 | 684 | 400 | 105 | ||
| DN500 | 676 | 500 | 840 | 500 | 116 | ||
| DN600 | 816 | 600 | 1187 | 600 | 134 | ||
| DN800 | 1026 | 800 | 1507 xyoo | 800 | 170 | ||
| DN1000 | 1269 | 1000 | 1790 xyoo | 1000 | 178 |









