Cov li qub npauj npaim yog cov khoom tseem ceeb rau kev tswj cov kav dej ntws hauv ntau yam lag luam. Ntawm ntau hom muaj, cov li qub npauj npaim wafer thiab flange thiab cov li qub npauj npaim ib leeg sawv cev rau lawv cov yam ntxwv tshwj xeeb thiab kev siv. Hauv qhov kev tshuaj xyuas sib piv no, peb yuav tshawb nrhiav qhov tsim, kev ua haujlwm, qhov zoo, thiab qhov txwv ntawm peb hom no kom nkag siab txog lawv qhov haum rau ntau qhov xwm txheej.
Lus Cim: Ntawm no peb xa mus rau Centerline Valve,Concentric Valve.
IB. Kev Taw Qhia
1. Lub wafer npauj npaim valve yog dab tsi?
Wafer Npauj Npaim ValveHom lub valve no yog tsim los rau nruab nrab ntawm ob lub yeeb nkab flanges, feem ntau yog ib lub wafer flange. Nws muaj ib qho profile nyias nrog ib lub phaj valve uas tig rau ntawm ib lub ncej kom tswj tau dej ntws.
Qhov zoo ntawm wafer npauj npaim valve:
· Lub wafer-type butterfly valve muaj qhov ntev ntawm cov qauv luv luv, uas txhais tau tias nws yog ib qho qauv nyias nyias, uas ua rau nws tsim nyog heev rau cov chaw uas muaj qhov chaw tsawg.
Lawv muab ob txoj kev kaw, kaw nruj thiab tsim nyog rau cov kab ke uas muaj qhov xav tau siab qis mus rau nruab nrab.
Qhov zoo tshaj plaws ntawm lub wafer npauj npaim valve yog nws txoj kev tsim me me.
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2. Dab tsi yog flange npauj npaim valve
Flange npauj npaim valve: Lub flange npauj npaim valve muaj cov flanges sib xyaw rau ob sab thiab tuaj yeem ncaj qha bolted ntawm cov flanges hauv cov kav dej. Piv rau cov pinch valves, lawv muaj qhov ntev dua.
Qhov zoo ntawm flange npauj npaim valve:
· Lub flange npauj npaim valve muaj qhov kawg flange uas ncaj qha bolted rau lub yeeb nkab flange. Qhov kev tsim no ua rau muaj kev ruaj khov thiab kev ruaj khov, ua rau nws haum rau cov ntawv thov hluav taws xob siab qhov twg kev sib txuas zoo yog qhov tseem ceeb.
· Cov li qub flange kuj yooj yim dua rau kev teeb tsa thiab rhuav tshem, yog li ua kom yooj yim rau kev saib xyuas thiab txuag cov nqi.
· Lub flange butterfly valve tuaj yeem ntsia tau rau ntawm qhov kawg ntawm cov kav dej thiab siv tau ua lub valve kawg.
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3. Dab tsi yog ib qho flange npauj npaim valve
Cov qauv ntawm lubib qho flange npauj npaim valveyog tias muaj ib lub flange nyob rau hauv nruab nrab ntawm lub cev valve, uas yuav tsum tau kho rau ntawm lub flange ntawm cov yeeb nkab nrog cov bolts ntev.
Qhov zoo ntawm ib qho flange npauj npaim valve:
Nws muaj qhov ntev ntawm cov qauv ntawm lub valve npauj npaim clamped thiab nyob hauv thaj chaw me me.
· Cov yam ntxwv ntawm kev sib txuas ruaj khov zoo ib yam li cov ntawm flange npauj npaim li qub.
· Haum rau cov tshuab siab nruab nrab thiab qis.
OB. qhov txawv
1. Cov qauv kev sib txuas:
a) Wafer npauj npaim valve: Lub valve no feem ntau yog tus qauv sib txuas ntau yam thiab tuaj yeem sib xws nrog DIN PN6 / PN10 / PN16, ASME CL150, JIS 5K / 10K, thiab lwm yam.
b) Flange npauj npaim valve: feem ntau yog ib qho kev sib txuas txheem. Tsuas yog siv cov kev sib txuas flange txheem.
c) Ib lub flange npauj npaim valve: feem ntau kuj muaj ib qho kev sib txuas tus qauv.
2. Qhov loj me
a) Wafer npauj npaim valve: DN15-DN2000.
b) Flange npauj npaim valve: DN40-DN3000.
c) Ib lub flange npauj npaim valve: DN700-DN1000.
3. Kev teeb tsa:
a) Kev teeb tsa ntawm wafer npauj npaim li qub:
Kev teeb tsa yooj yim heev vim tias lawv tuaj yeem raug muab tais rau ntawm ob lub flanges siv 4 lub bolts ntev. Cov bolts hla dhau lub flange thiab lub cev valve, qhov kev teeb tsa no tso cai rau kev teeb tsa sai thiab tshem tawm.
b) Kev teeb tsa ntawm flange npauj npaim valve:
Vim tias muaj cov flanges sib xyaw ua ke ntawm ob sab, cov flange li qub loj dua thiab xav tau ntau qhov chaw. Lawv tau kho ncaj qha rau ntawm cov yeeb nkab flange nrog cov studs luv luv.
c) Kev teeb tsa ntawm ib lub flange npauj npaim valve:
xav tau cov ntsia hlau ntev ob lub taub hau uas muab tais rau ntawm ob lub flanges ntawm cov yeeb nkab. Tus naj npawb ntawm cov ntsia hlau uas xav tau tau qhia nyob rau hauv lub rooj hauv qab no.
| DN700 | DN750 | DN800 | DN900 | DN1000 |
| 20 | 28 | 20 | 24 | 24 |
4. Tus nqi:
a) Wafer npauj npaim valve: Piv nrog rau flange valves, wafer valves feem ntau pheej yig dua. Lawv qhov ntev tsim luv luv xav tau cov khoom siv tsawg dua thiab tsuas yog xav tau plaub lub ntsia hlau xwb, yog li txo cov nqi tsim khoom thiab kev teeb tsa.
b) Flange Butterfly Valve: Flange valves feem ntau kim dua vim lawv txoj kev tsim kho ruaj khov thiab flange sib xyaw ua ke. Cov bolts thiab kev teeb tsa uas xav tau rau kev sib txuas flange ua rau tus nqi siab dua.
c) Ib lub flange npauj npaim valve:
Lub valve ib-flange npauj npaim muaj ib lub flange tsawg dua li lub valve ob-flange npauj npaim, thiab kev teeb tsa yooj yim dua li lub valve ob-flange npauj npaim, yog li tus nqi nyob nruab nrab.
5. Qib siab:
a) Wafer npauj npaim valve: Piv nrog rau flange valve, qib siab ntawm wafer npauj npaim valve qis dua. Lawv tsim nyog rau kev siv hluav taws xob qis PN6-PN16.
b) Flange npauj npaim valve: Vim nws cov qauv khov kho thiab flange integral, lub flange valve yog tsim rau cov qib siab dua, PN6-PN25, (cov npauj npaim kaw ruaj khov tuaj yeem ncav cuag PN64 lossis siab dua).
c) Ib lub flange npauj npaim valve: ntawm wafer npauj npaim valve thiab flange npauj npaim valve, tsim rau PN6-PN20 daim ntawv thov.
6. Daim Ntawv Thov:
a) Lub Rooj Vag Npauj Npaim Wafer: Feem ntau siv rau hauv cov tshuab HVAC, cov chaw kho dej thiab cov ntawv thov kev lag luam uas muaj qhov chaw tsawg thiab kev siv nyiaj tsawg yog qhov tseem ceeb. Siv rau hauv cov tshuab raj uas muaj qhov chaw tsawg thiab qhov poob siab tsawg yog qhov lees txais. Lawv muab kev tswj hwm dej ntws sai thiab zoo ntawm tus nqi qis dua li cov flanged valves.
b) Lub qhov dej npauj npaim flange: Lub qhov dej npauj npaim flange siv rau hauv kev lag luam xws li roj thiab roj av, kev ua tshuaj lom neeg thiab kev tsim hluav taws xob, qhov twg cov qib siab dua thiab kev ua haujlwm zoo heev yog qhov tseem ceeb. Vim tias lub qhov dej npauj npaim flange tuaj yeem xa cov qib siab dua thiab kev sib khi zoo dua thiab kev sib txuas muaj zog dua. Thiab lub qhov dej npauj npaim flange tuaj yeem ntsia tau rau ntawm qhov kawg ntawm cov kav dej.
c) Ib lub flange npauj npaim valve:
Ib lub flange npauj npaim li qub feem ntau siv rau hauv cov dej hauv nroog, cov txheej txheem kev lag luam xws li tshuaj lom neeg, cov khoom siv roj av thiab cov dej khib nyiab hauv kev lag luam, tswj cov cua sov lossis dej txias hauv HVAC systems, kev kho dej phwj tuaj, kev lag luam zaub mov thiab dej haus thiab lwm yam.
PEB. Xaus lus:
Cov li qub wafer npauj npaim, cov li qub flange npauj npaim thiab cov li qub flange ib leeg muaj cov txiaj ntsig tshwj xeeb thiab tsim nyog rau ntau yam kev siv. Cov li qub wafer npauj npaim nyiam vim lawv qhov ntev ntawm cov qauv luv, tsim qauv me me, ua haujlwm tau zoo thiab yooj yim teeb tsa. Cov li qub flange ib leeg kuj zoo tagnrho rau cov tshuab nruab nrab thiab qis siab nrog qhov chaw tsawg vim lawv cov qauv luv. Cov li qub flanged, ntawm qhov tod tes, ua tau zoo hauv cov ntawv thov siab uas xav tau kev ua haujlwm zoo heev thiab kev tsim kho ruaj khov, tab sis kim dua.
Hauv ntej, yog tias qhov kev tshem tawm ntawm cov yeeb nkab raug txwv thiab qhov siab yog qhov siab qis DN≤2000 system, koj tuaj yeem xaiv lub wafer npauj npaim valve;
Yog tias qhov kev tshem tawm ntawm cov yeeb nkab raug txwv thiab qhov siab yog qhov nruab nrab lossis qis, 700≤DN≤1000, koj tuaj yeem xaiv ib lub flange npauj npaim valve;
Yog tias qhov kev tshem tawm ntawm cov yeeb nkab txaus thiab qhov siab yog qhov nruab nrab lossis qis DN≤3000 system, koj tuaj yeem xaiv flange npauj npaim valve.