PIB 103-125
Vim li cas thiaj ntxiv lub tog raj kheej no?
Nrog rau lub tog raj kheej sab nraud, thaum lub valve disc kaw sai sai tab sis tseem tshuav 30% sab laug kom kaw, lub tog raj kheej pib ua haujlwm, ua rau lub phaj valve maj mam kaw. Qhov no tuaj yeem tiv thaiv qhov nruab nrab hauv cov raj xa dej kom nrawm nrawm thiab ua rau cov kav dej puas
Vim li cas thiaj ntxiv qhov hnyav thaiv?
Nruab nrog lub qhov hnyav thaiv, nws tuaj yeem kaw sai sai hauv cov kav dej thiab tshem tawm cov dej rauj puas tsuaj
MSS SP-71 Class 125 Cast Iron Air Cushion Swing Check Valve yog cov cam khwb cia hlau cua cushion viav vias kos valve uas kuj ua raws li American Standard Manufacturing Society (MSS) tus qauv SP-71 thiab tau ntsuas Class 125. Cov hauv qab no yog cov yam ntxwv, Cov txiaj ntsig thiab kev siv ntawm no valve:
Txo cov dej rauj: Cov cua cushion tsim tuaj yeem txo cov dej rauj thiab kev co, txhim kho kev ruaj ntseg thiab kev nyab xeeb ntawm cov kav dej.
Kev ntseeg tau ntev ntev: Cov khoom siv hlau cam khwb cia muaj kev tiv thaiv corrosion zoo, ua kom ntseeg tau ntawm lub valve hauv kev siv mus ntev.
Tsis siv neeg ua haujlwm: Raws li cov dej ntws ntawm qhov nruab nrab, lub valve tuaj yeem qhib lossis kaw yam tsis muaj kev tuav haujlwm.
Kev siv:MSS SP-71 Class 125 Cast Iron Air Cushion Viav Vias Check Valve feem ntau yog siv rau hauv cov kav dej hauv kev lag luam, tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej uas cov dej ntws tawm tau hloov pauv, yooj yim ua rau dej rauj thiab kev co. Cov cheeb tsam uas siv tau zoo xws li cov kav dej, cov kav dej phwj tuaj, kev tsim khoom thiab cov txheej txheem tshuaj. Hom valve no tuaj yeem tiv thaiv cov raj xa dej kom zoo, ua kom ruaj khov ntawm kev tshaj tawm, txo qhov kev ntxhov siab thiab poob ntawm cov kav dej, thiab txhim kho kev nyab xeeb thiab kev ntseeg siab ntawm lub cev.
Huab cua cushion tsim: Nws muaj qhov tshwj xeeb huab cua cushion tsim uas siv lub hnab cua los yog cua cia chav los muab lub zog ntawm lub valve thiab txo cov dej rauj thiab kev co.
Ua los ntawm cam khwb cia hlau: Lub valve lub cev thiab lub hau npog feem ntau yog ua los ntawm cov hlau cam khwb cia, uas muaj kev tiv thaiv corrosion zoo thiab lub zog.
Lub viav vias valve npog: Lub viav vias tsim kom paub meej qhov tseeb ntws thiab tiv thaiv qhov nruab nrab rov qab.
· Tsim thiab Tsim Kho raws li MSS SP-71
· Flange qhov ntev raws li ASME B16.1
· Lub ntsej muag rau lub ntsej muag raws li ASME B16.10
· Kev ntsuam xyuas raws li MSS SP-71
LUB NPE | KHOOM |
Lub cev | ASTM A126 B |
SEAT RING | ASTM B62 C83600 Cov Lus Qhia Tshwj Xeeb |
DISC | ASTM A126 B |
CYLINDER APPARATUS | ASSEMBLY |
DISC RING | ASTM B62 C83600 Cov Lus Qhia Tshwj Xeeb |
KHOOM | Tom ntej: ASTM A536 65-45-12 |
STEM | ASTM A 276 410 Cov |
BONNET | ASTM A126 B |
LEVER | CARBON STEEL |
LUB SIJ HAWM | CAIS IRON |
NPS | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 |
Dn | 203 | 254 | 305 | 356 | 406 | 457 ib | 508 | 610 |
L | ib 495.3 | 622.3 ib | ib 698.5 | 787.4 ib | 914.4 ib | 965 ib | 1016 | 1219 |
D | 343 | 406 | 483 ib | 533 ib | 597 ib | 635 ib | 699 ib | 8 13 |
D1 | 298.5 ib | 362 ib | 431.8 ib | 476.3 ib | 539.8 ib | 577.9 ib | 635 ib | ib 749.3 |
b | 28.5 Nws | 30.2 ib | 31.8 ib | 35 | 36.6 ib | 39.6 ib | 42.9 ib | 47.8 ib |
nd | 8–22 | 12-25 | 12-25 | 12-29 | 16-29 | 16-32 : kuv | 20-32 : kuv | 20-35 : kuv |
H | 332 | ib 383 | 425 | 450 | 512 | 702 ib | 755 ib | 856 ib |