AWM C518yog tus qauv raudual -discviav vias check valvestsim los ntawm American Water Engineers Association (AWWA). Nws lub npe tag nrho yog "ANSI/AWWA C518 Dual-Disc Viav Vias Check Valves rau Cov Khoom Siv Dej". Nws muaj feem xyuam rau cov dej nyoos, dej haus thiab cov dej rov qab uas muaj txoj kab uas hla ntawm 2 ntiv mus rau 48 ntiv tes (50 mm txog 1,200 mm) thiab qhia txog qhov tsawg kawg nkaus kev qhia tshwj xeeb rau li qub raws li cov khoom siv, qauv, ntsuas ntsuas, sealing kev ua tau zoo thiab cov kev xav tau ntawm kev sim.
AWWA C518 Specifications
| Parameters | Cov ntsiab lus technical | Lus hais |
| Txheem Specification | AWM C518 | Txheem rau Dual-Disc Spring-Loaded Check Valves. |
| Nominal Size Range | 2" - 48" (DN50 - DN1200) | Qhov loj dua (txog 72 ") muaj nyob rau ntawm qhov kev thov. |
| Rated Ua Haujlwm Siab | 150 psi, 250 psi | Nyob ntawm cov khoom siv thiab cov ntawv thov. |
| Hom kev sib txuas | Wafer, Lug, Ob Flanged | Hom wafer yog cov qauv kev lag luam tshaj plaws. |
| Ntsej muag - mus rau - Lub ntsej muag Dimension | API 594 / AWWA C518 | Ultra- qauv luv luv rau txo qhov hnyav thiab qhov chaw. |
| Hydrostatic Plhaub Test | 1.5 x Rated Siab | Ua kom muaj kev sib koom ua ke thiab siab ncaj ncees. |
| Resilient Seat Test | 1.1 x Rated Siab | Guarantees "Bubble-Tight" kaw-tawm. |
| Kev Pabcuam Media | Cov dej haus, dej nyoos, dej huv | Haum rau hauv nroog thiab kev lag luam dej. |
AWWA C518 Materials of Construction
| Cheebtsam / Part Name | Cov Khoom Siv | Khoom Specification / ASTM Standard |
| Lub cev valve | Hlau Hlau / Grey Hlau | ASTM A536 / ASTM A126 Cl. B |
| Dual Discs (Plates) | Bronze / Stainless hlau / Ductile Hlau | ASTM B584 / ASTM A351 CF8M Cov Lus Qhia |
| Resilient zaum | EPDM / NBR (Buna-N) / Viton | Xyuas kom zero- leakage seal. |
| Torsion Springs | Stainless hlau 302 / 316 / Inconel | Muab lub zog kaw nrawm kom tsis txhob muaj kev kub ntxhov. |
| Pob khawm & nres Pins | Stainless hlau 304/316/410 | Txhawb kev sib hloov disc thiab txwv kev mus ncig. |
| Bearings / Bushings | PTFE / tooj liab | Txo kev sib txhuam thiab tiv thaiv tus pin seizing. |
| Kev tiv thaiv txheej | Fusion Bonded Epoxy (FBE) | Ua raws li AWWA C550 rau kev tiv thaiv corrosion. |
| Kho vajtse / Fasteners | Stainless hlau | Superior tiv thaiv oxidation thiab xeb. |
Vim li cas thiaj xaiv AWWA C518? (Kev sib piv nrog cov tsoos kos li qub)
| Pain Points / Engineering Challenges | Traditional Swing Check (AWWA C508) | Dual-Disc Spring-Loaded (AWWA C518) |
| Dej rauj (Slam) | Kev kaw qeeb: Tsuas yog kaw tom qab rov qab tau pib, ua rau muaj kev poob siab loj heev thiab "pipe slam." | Kev kaw nrawm: Snaps kaw ua ntej backflow pib, kom ntseeg tau tias ntsiag to thiab slam - ua haujlwm dawb. |
| Qhov chaw nruab | Loj: Lub ntsej muag ntev -rau- lub ntsej muag qhov ntev thiab qhov hnyav hnyav yuav tsum tau hneev taw loj. | Ultra{0}}Compact: Feem ntau tsuas yog1/4 rau 1/8lub ntsej muag - mus rau - lub ntsej muag ntev ntawm ib txwm li qub. |
| Installation Orientation | txwv: Feem ntau txwv rau cov kav dej kab rov tav nkaus xwb. | Ntau yam: Haum rau ob qho tib sikab rov tav thiab ntsug (nce ntws)kev teeb tsa. |
| Cov nqi kho mob | nyuaj: Muaj ntau qhov txav hauv qhov chaw; hinge pins thiab bushings yog nquag hnav ntxov ntxov. | Yooj yim: Streamlined design with high-qib springs and pins for long-term durability and minimal care. |
Applications of AWWA Valve
Municipal Water Pumping Stations
Pump Discharge
Ua haujlwm ntsiag to
High-Rise Building Water Systems
Vertical Installation
HVAC Systems
Kev Kho Dej & Cov Txheej Txheem Kev Lag Luam
Lim backwashing system
Seawater desalination thiab thauj cov dej nyoos
Industrial circulating dej txias
GNEE AWWA Valve Hoobkas
Nrhiav rau AWWA C518 Specifications? Download Peb 2 "mus rau 48" Cov Ntawv Teev Npe Hnub no.
FAQ
AWWA valves yog dab tsi?
AWWA li qubtsim los ua kom tau raws li kev nruj nruj ntawm American Water Works Association (AWWA) cov qauv, ua kom muaj kev ruaj khov thiab kev ntseeg siab hauv cov dej faib thiab kev kho dej.. Engineered rau lub neej ua haujlwm ntev, cov li qub no tau ua kom zoo rau hauv nroog, kev lag luam, thiab kev lag luam hauv dej.
Yuav ua li cas yuav tsum tau nruab ib lub viav vias kos valve?
Lub viav vias kos valve yog ib txwm ntsianrog HINGE PIN tso rau kab rov tav, thiab saum cov yeeb nkab centerline(raws li qhia hauv cov duab tom kawg ntawm ntu no). Kev teeb tsa tsis raug yuav ua rau muaj kev sib khi, siab lub taub hau poob, thiab / lossis ua rau hauv txoj haujlwm qhib.