Qhov hnyav ntawm anpauj npaim valveNws yog ib qho tseem ceeb rau kev tsim tag nrho ntawm ib qho system. Nws cuam tshuam rau kev teeb tsa, kev saib xyuas, thiab kev ua haujlwm tag nrho. Paub txog nws cov qauv tsim thiab kev tswj kom zoo, npauj npaim li qub yog qhov tseem ceeb hauv ntau yam kev siv los ntawm kev kho dej mus rau roj thiab roj.
1. Txheej txheem cej luam ntawm Npauj Npaim Valve Qhov hnyav.
Qhov hnyav ntawm npauj npaim valve yog nyob ntawm qhov sib npaug ntawm txhua qhov hnyav. Qhov hnyav ntawm npauj npaim valve txawv nyob ntawm tus qauv thiab kev teeb tsa ntawm npauj npaim valve.
1.1 Cov Qauv Txheej Txheem
A npauj npaim valvemuaj lub cev valve, disc, qia, lub rooj zaum, thiab lub actuator. Lub cev lub cev yog lub cev tseem ceeb, lub luag haujlwm rau kev sib txuas cov yeeb nkab flange, tsim lub voj kaw, thiab vaj tse lwm yam khoom. Lub disc tig ib ncig ntawm lub hauv paus axis, thiab qhov kev sib hloov no tso cai rau lub valve qhib lossis kaw, yog li tswj cov dej ntws los yog cov pa roj. Lub qia valve txuas lub disc rau lub actuator, uas tuaj yeem ua haujlwm manually lossis txiav. Lub rooj zaum ua kom lub kaw ntom ntom kom tiv thaiv kom tsis txhob tawg.
Qhov tseem ceeb ntawm Valve Nyhav
-Cov kev txiav txim siab
Valve hnyav plays lub luag haujlwm tseem ceeb hauv kev tsim qauv. Lub peev xwm ntawm cov qauv txhawb nqa yuav tsum tau txiav txim siab thaum tsim. Hnyav li qub tej zaum yuav xav tau kev txhawb nqa ntxiv, uas ua rau kom qhov nyuaj ntawm kev teeb tsa.
- Kev txhim kho thiab tu
Lub teeb li qub feem ntau ua kom yooj yim rau kev teeb tsa thiab txo cov nqi zog. Lawv xav tau kev tuav thiab kev txhawb nqa tsawg dua, ua rau kev saib xyuas yooj yim dua thiab siv tau. Qhov yooj yim ntawm kev saib xyuas no tuaj yeem txo qis qis thiab txo cov nqi khiav haujlwm.
-Txoj kev cuam tshuam
Lub teeb li qub tuaj yeem muab lub sijhawm teb sai dua. Kev xaiv tsim qauv tuaj yeem ua kom zoo dua qub, ua kom lub valve ua tau raws li cov kev xav tau tshwj xeeb. Piv txwv li, npauj npaim li qub feem ntau sib zog dua li qub rooj vag li qub, yog li npauj npaim li qub tuaj yeem txhim kho kev ua haujlwm ntawm cov kua dej.
-Cov nqi txiav txim siab
Qhov hnyav ntawm lub valve cuam tshuam nws cov nqi hauv ntau txoj hauv kev. Hnyav li qub yuav ua rau muaj kev xa khoom ntau dua thiab kev siv nyiaj. Tsis tas li ntawd, cov khoom siv hauv kev tsim khoom tuaj yeem cuam tshuam tus nqi tag nrho. Kev xaiv lub qhov hnyav li qub tuaj yeem txuag tau cov nqi tseem ceeb, ob qho tib si ntawm kev yuav khoom thiab kev saib xyuas mus sij hawm ntev.
2. Npauj Npaim Valve Nyhav Daim Ntawv Qhia
| DN | INCH | Nyhav kg | Nyhav kg | |||||
| Wafer hom | LUG type | Flange hom | handel | Gearbox | ||||
| DN 50 | 2” | 2.6 | 3.8 | 8.9 ib | 0.4 | 4.2 | ||
| DN 65 | 2-1/2 " | 3.4 | 4.7 | 11.9 ib | 0.4 | 4.2 | ||
| DN80 ua | 3” | 4.0 | 5.2 | 13.1 | 0.4 | 4.2 | ||
| DN100 | 4” | 4.6 | 7.9 ib | 15.5 ib | 0.4 | 4.2 | ||
| DN125 | 5” | 7.0 ib | 9.5 ib | 19.9 Nws | 0.7 | 4.2 | ||
| DN150 | 6” | 8.0 ib | 12.2 | 22.8 ib | 0.7 | 4.2 | ||
| DN200 | 8 " | 14.0 Nws | 19.0 Nws | 37.8 ib | - | 10.8 | ||
| DN 250 | 10” | 21.5 ib | 28.8 ib | 55.8 ua | - | 10.8 | ||
| DN 300 Nws | 12 " | 30.7 ib | 49.9 ib | 68.6 ib | - | 14.2 | ||
| DN350 | 14" | 44.5 ib | 63.0 ua | 93.3 ib | - | 14.2 | ||
| DN400 | 16” | 62.0 ua | 105 | 121 | - | 25 | ||
| DN450 | 18" | 95 | 117 | 131 | - | 25 | ||
| DN500 | 20" | 120 | 146 | 159 | - | 25 | ||
| DN 600 Nws | 24" | 170 | 245 | 218 | - | 76 | ||
| DN 700 Nws | 28" | 284 | - | 331 | - | 76 | ||
| DN 800 Nws | 32 " | 368 | - | 604 ib | - | 76 | ||
| DN900 Nws | 36 " | 713 ib | - | 671 ib | - | 88 | ||
| DN1000 | 40 " | 864 ib | - | 773 ib | - | 88 | ||
Kev faib tawm los ntawm Hom
Hom npauj npaim valve cuam tshuam nws qhov hnyav thiab haum rau daim ntawv thov. Npauj npaim valve hnyav lub rooj faib lub valve rau hauv peb hom tseem ceeb, txhua tus muaj cov yam ntxwv sib txawv thiab siv.
Hom Wafer
Wafer npauj npaim li qub haum nruj ntawm flanges thiab tsuas yog plaub lub bolts, siv qhov chaw tsawg dua. Qhov kev tsim no txo qhov hnyav, ua wafer li qub zoo tagnrho rau cov ntawv thov qhov chaw thiab qhov hnyav hnyav yog qhov tseem ceeb.
Lug Type
Lug npauj npaim li qub feature threaded inserts uas tuaj yeem ntsia tau siv bolts, tsis muaj txiv ntoo. Qhov kev tsim no muab kev ruaj ntseg thiab yooj yim ntawm kev saib xyuas, tshwj xeeb tshaj yog nyob rau hauv cov tshuab uas yuav tsum tau nquag disassembly. Qhov hnyav ntawm cov npauj npaim li qub yog nyob ntawm cov khoom xws li cov khoom muaj pes tsawg leeg thiab qhov loj, uas tseem cuam tshuam rau lawv cov nqi thiab kev ua haujlwm.
Hom Flanged
Flanged npauj npaim li qub muab kev nyab xeeb thiab ruaj ntseg txuas rau cov kav dej. Lawv tsim muaj xws li flanges uas yog bolted ncaj qha mus rau cov yeeb nkab, uas txhim khu kev ruaj ntseg thiab tsis kam. Txawm hais tias flanged li qub yuav hnyav dua, lawv cov kav ntev thiab lub zog ua rau lawv haum rau cov ntawv siv siab.
Cov ntsiab lus
Nkag siab txog qhov hnyav ntawm npauj npaim li qub yog qhov tseem ceeb rau kev txhim kho kev tsim qauv thiab kev ua haujlwm. Valve qhov hnyav tuaj yeem cuam tshuam rau kev teeb tsa, kev saib xyuas, thiab kev ua haujlwm tag nrho. Los ntawm kev txiav txim siab qhov hnyav ntawm lub valve, engineers tuaj yeem txiav txim siab paub qhov sib npaug ntawm kev ua haujlwm, ua haujlwm ntev, thiab tus nqi. Qhov no ua kom ntseeg tau tias qhov kev xaiv valve ua tau raws li kev thov tshwj xeeb.
"Kev xaiv lub valve zoo suav nrog kev tshuaj xyuas cov ntawv thov los ntawm kev xav ntawm lub valve loj, tsim qauv, cov khoom siv, kev teeb tsa thiab kev saib xyuas xav tau, cuam tshuam rau cov nqi thiab kev ua raws cai."