CHV150-300
Kif jimplika l-ismijiet, dan il-valv fih xatba li titbandal li hija biċ-ċappetti fil-parti ta 'fuq u tiftaħ hekk kif fluwidu jgħaddi minnu. Passaġġ tal-fluss bla xkiel huwa pprovdut mill-valv ta 'kontroll swing meta d-diska tal-valv tkun fil-pożizzjoni miftuħa għal kollox. Fi ħdan il-valv, dan il-kanal lixx jiġġenera turbolenza baxxa u tnaqqis fil-pressjoni. Biex il-valv jaħdem perfettament, dejjem għandu jkun hemm pressjoni minima biex tiftaħ id-diska. Meta l-fluss tal-fluwidu jreġġa 'lura, il-pressjoni u l-piż tal-medju kontra d-diska jimbuttaw id-diska fis-sedil, u b'hekk jipprevjenu l-fluss lura kollu. Il-valvi ta 'kontroll huma tipikament meqjusa bħala tagħmir ta' sigurtà jew protettiv.
Klassi 150-300 Cast Steel Check Valve huwa valv ta 'kontroll magħmul minn azzar fondut. Huwa maqsum fi klassi 150 u klassi 300 skond il-klassi tal-pressjoni. Il-karatteristiċi tiegħu jinkludu struttura sempliċi, daqs żgħir, piż ħafif, prestazzjoni tajba tas-siġillar, u tħaddim faċli. Dan il-valv huwa adattat għal ambjenti ta 'pressjoni għolja u ta' temperatura għolja biex jipprevjeni fluss invers ta 'fluwidu fil-pipelines. Normalment jintuża f'sistemi ta 'pipeline f'oqsma industrijali bħall-pitrolju, l-industrija kimika u l-enerġija elettrika.
Huwa valv li juża tħaddim li jdur biex jikkontrolla l-fluss tal-fluwidu. Normalment jikkonsisti minn korp tal-valv, kopertura tal-valv, diska tal-valv, zokk tal-valv, u apparat operattiv. Dan it-tip ta 'valv jikseb il-fluss tal-medju biex jinfetaħ jew jagħlaq billi ddawwar id-diska tal-valv, u għandu prestazzjoni tajba tas-siġillar, li tista' effettivament tevita tnixxija medja.
LE. | PARTI | Materjal ASTM | ||||
WCB | LCB | WC6 | CF8(M) | CF3(M) | ||
1 | KORP | A216 WCB | A352 LCB | A217 WC6+STL | A351 CF8(M)+STL | A351 CF3(M)+STL |
2 | SEDIL | A105+13Cr | A105+13Cr | - | - | - |
3 | DISK | A216 WCB+13Cr | A352 LCB+13Cr | A217 WC6+STL | A351 CF8(M) | A351 CF3(M) |
4 | ĊAPPETTA | A216 WCB | A182 F6 | A182 F6 | A351 CF8(M) | A351 CF3(M) |
5 | PIN ĊAPPETTA | A276 304 | A182 F6 | A182 F6 | A182 F304(F316) | A182 F304(F316) |
6 | Furketta | A216 WCB | A352 LCB | A217 WC6 | A351 CF8(M) | A351 CF3(M) |
7 | KOPERTURA BOLT | A193 B7 | A320 L7 | A193 B16 | A193 B8(M) | A193 B8(M) |
8 | ĠEWŻ GĦAT-TAPER | A194 2H | A194 7 | A194 4 | A194 8(M) | A194 8(M) |
9 | GASKET | SS304+GRAFIT | PTFE/SS304+GRAFIT | PTFE/SS316 + GRAFIT | ||
10 | KOPERTURA | A216 WCB | A352 LCB | A217 WC6 | A351 CF8(M) | A351 CF3(M) |
Daqs | in | 1/2 | 3/4 | 1 | 11/2 | 2 | 21/2 | 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | 26 |
mm | 15 | 20 | 25 | 40 | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 650 | |
L/L1 (RF/BW) | in | 4.25 | 4.62 | 5 | 6.5 | 8 | 8.5 | 9.5 | 11.5 | 14 | 19.5 | 24.5 | 27.5 | 31 | 34 | 38.5 | 38.5 | 51 | - |
mm | 108 | 117 | 127 | 165 | 203 | 216 | 241 | 292 | 356 | 495 | 622 | 699 | 787 | 864 | 978 | 978 | 1295 | - | |
L2 (RTJ) | in | - | - | - | - | 8.5 | 9 | 10 | 12 | 14.5 | 20 | 25 | 28 | 31.5 | 34.5 | 39 | 39 | 21.5 | - |
mm | - | - | - | - | 216 | 229 | 254 | 305 | 368 | 508 | 635 | 711 | 800 | 876 | 991 | 991 | 1308 | - | |
H (Miftuħ) | in | 3.12 | 3.38 | 3.88 | 4.38 | 6 | 6.5 | 6.88 | 8 | 11.5 | 13.88 | 15.38 | 17 | 18.75 | 20.62 | 22.88 | 24.62 | 24.75 | - |
mm | 80 | 85 | 100 | 110 | 152 | 165 | 175 | 204 | 293 | 353 | 390 | 432 | 475 | 525 | 582 | 627 | 883 | - | |
WT (Kg) | BW | 2.5 | 3.5 | 5 | 7.5 | 14 | 20 | 25 | 40 | 71 | 118 | 177 | 263 | 353 | 542 | 632 | 855 | 970 | - |
RF/RTJ | 2 | 3 | 3.5 | 5.5 | 10 | 12 | 17 | 29 | 57 | 96 | 143 | 227 | 295 | 468 | 552 | 755 | 831 | - |
Dimensjonijiet u Piżijiet Klassi 150
Daqs | in | 1/2 | 3/4 | 1 | 11/2 | 2 | 21/2 | 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | 26 |
mm | 15 | 20 | 25 | 40 | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 650 | |
L/L1 (RF/BW) | in | 6 | 7 | 8 | 9 | 10.5 | 11.5 | 12.5 | 14 | 17.5 | 21 | 24.5 | 28 | 33 | 34 | 38.5 | 40 | 53 | - |
mm | 152 | 178 | 203 | 229 | 267 | 292 | 318 | 356 | 445 | 533 | 622 | 711 | 838 | 864 | 978 | 1016 | 1346 | - | |
L2 (RTJ) | in | - | - | - | - | 11.12 | 12.12 | 13.12 | 14.62 | 18.12 | 21.62 | 25.12 | 28.62 | 33.62 | 34.62 | 39.12 | 40.75 | 53.88 | - |
mm | - | - | - | - | 283 | 308 | 333 | 371 | 460 | 549 | 638 | 727 | 854 | 879 | 994 | 1035 | 1368 | - | |
H (Miftuħ) | in | 3.12 | 3.38 | 3.88 | 4.38 | 6 | 6.5 | 6.88 | 8 | 11.5 | 13.88 | 15.38 | 17 | 18.75 | 20.62 | 22.88 | 24.62 | 34.75 | - |
mm | 80 | 85 | 100 | 110 | 152 | 165 | 175 | 204 | 293 | 353 | 390 | 432 | 475 | 525 | 582 | 627 | 883 | - | |
WT (Kg) | BW | 3 | 4 | 6 | 10 | 16 | 23 | 29 | 46 | 82 | 136 | 204 | 302 | 405 | 625 | 730 | 985 | 1115 | - |
RF/RTJ | 2.5 | 3.5 | 5 | 7 | 11 | 13 | 18 | 31 | 61 | 103 | 155 | 245 | 315 | 503 | 593 | 812 | 895 | - |