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DRVZ ntsiag to check valve

DRVZ ntsiag to kos valve feem ntau yog tsim los ntawm lub cev lub cev, lub rooj zaum valve, lub cev qhia, valve disc, bearing, caij nplooj ntoos hlav thiab lwm yam tseem ceeb. Internal flow passage adopts streamline design, nrog tsawg kawg siab poob. Qhov qhib thiab kaw stroke ntawm lub valve disc yog luv heev, uas tuaj yeem kaw sai sai thaum lub twj tso kua mis nres kom tsis txhob muaj lub suab nrov rauj dej loj. Nws yog tsuas yog siv rau hauv cov dej xa dej thiab tso dej, hluav taws kub sib ntaus, cua sov thiab qhov cua, thiab tuaj yeem ntsia tau rau ntawm qhov hluav taws xob ntawm lub twj tso kua mis dej kom tsis txhob rov qab los thiab dej rauj puas tsuaj rau lub twj tso kua mis.
    DRVZ Technical parameters of silent check valve Khoom qauv DRVZ Nominal inch 2 "-12" (DN50-DN300) Nominal siab PN10/16/25 Siv nruab nrab dej huv Siv tau kub -10 ℃ ~ 80 ℃ Cov khoom siv ntawm cov khoom tseem ceeb Tshooj npe ntawm cov khoom siv Lub npe kev ntxhib los mos ntawm cov khoom siv valve lub cev GJS 500-7 shim EPDM Disc GJS 500-7 + EPDM Disc txiv ntoo ANSI 304 Caij nplooj ntoos hlav ANSI 304 Qhia tes tsho C61900 O-ring NBR Qhia lub cev GJS 500-7 qia ANSI 304 Main kev twb kev txuas qhov ntev D1 Nominal LD N-Φd DN(mm) NPS(in) PN10 PN16 PN25 PN10 PN10 PN16 PN25 PN10 PN16 PN25 50 2" 150 165 165 165 125 125 125 125 4-Φ19 4-Φ19 4-Φ19 4-Φ19 4-Φ19 185 185 145 145 145 4 ib -Φ19 4-Φ19 8-Φ19 80 3" 180 200 200 200 160 160 160 8-Φ19 8-Φ19 8-Φ19 100 4" 190 220 220 8019 Φ190 220 220 8019 Φ 8-Φ23 125 5" 200 250 250 270 210 210 220 8-Φ19 8-Φ19 8-Φ28 150 6" 210 285 285 300 240 240 250 8-Φ23 8-Φ3028 30-Φ428 30 0 295 295 310 8-Φ23 12-Φ23 12-Φ28 250 10" 250 395 405 425 350 355 370 12-Φ33 12-Φ28 12-Φ31 300 12" 270 445 460 Φ 33 402 485 4020 - Φ31