Malo
SDV valavu (vundikirani valavu)
Kufotokozera
Valavu ya SDV (yotsekera Posintha kutsegulidwa kwa spool, malo okwera pamtanda amasinthidwa kuti asinthe kutuluka. Itha kugwiritsidwanso ntchito posinthira kuwongolera kuti muzindikire kutseguka kapena kutseka pa mapaipi. Imakhala ndi zotsatira zodziyeretsa, zimatha kusintha pang'ono pang'onopang'ono pamlingo wotseguka, kuchuluka kwake ndi kwakukulu, koyenera kumera, tinthu tating'onoting'ono, tinthu tating'onoting'ono.
Chigawo chotseguka ndi chotseka cha v-mtundu wa v-mtundu wa v-mtundu ndi njira yozungulira, ndipo ma hemispheres amalumikizidwa ndi bolt ndi kuzungulira 90 kuti akwaniritse cholinga chotsegulira ndikutseka.
Amagwiritsidwa ntchito kwambiri mu dongosolo lodzitchinjiriza la mafuta a petroleum, makampani amakampani ndi zina zotero.
✧ magawo a mavesi okwanira mpira
| Chinthu | STV valavu (tsekani valavu) (v doko) |
| Diamentine | NPS 2 ", 3", 4 ", 6", 8 ", 10", 12 ", 14", 16 ", 20", 20 " |
| Diamentine | Kalasi 150, 600, 900, 1500, 2500. |
| Kulumikizana | Wodzikonda (rf, RTJ), bw, pe |
| Kuyendetsa | Lever, giriya mafuta, wopanda pake, woyimbira wa chibayo, wochita magetsi |
| Zipangizo | Kuponyera: A216 WCB, A351 CF3, CF8, CF8M, CF8M, A352 LCB, LCC, LC2, A995 4a. 5a, suyansi, FOSTELOY, Monte |
| Sitilakichala | Lodzaza kapena kuchepetsedwa, Rf, rtj, bw kapena pe, Kulowera mbali, kulowa kolowera, kapena kapangidwe ka thupi Block yowirimitsa & magazi (DBB), kudzipatula kawiri & magazi (DIB) Mpando wadzidzidzi ndi jakisoni Chida chotsutsa-Static |
| Kapangidwe ndi kupanga | API 6D, API 608, ISO 17292 |
| Nkhope | API 6D, asme B16.10 |
| Kulumikizana | Bw (asme B16.25) |
| Mss spa-44 | |
| RF, RTJ (ASME B16.5, asme B16.47) | |
| Kuyesa ndi kuyang'ana | API 6D, API 598 |
| Ena | Nice mr-0175, nice mr-0103, iso 15848 |
| Kupezekanso pa | PT, UT, RT, MT. |
| Mapangidwe otetezeka moto | API 6FA, API 607 |
Zovala za SDV valavu (tsekani valavu) (v doko)
1. Kukana kwamadzi ndi kochepa, kukoma koyenda ndikokulira, kuchuluka kosinthika ndikokwera. Itha kufika: 100: 1, zomwe ndizokulirapo kuposa chiwerengero chosinthika cha valavu yolowera kolunjika, valavu yazitsulo ziwiri ndi valavu yowongolera zowoneka bwino. Makhalidwe ake oyenda ndi ofananira pafupifupi.
2. Kusindikiza kodalirika. Kalasi yopuma ya zitsulo zolimba ndi kalasi IV ya GB / T4213 "Varamatic Control Valve". Kalasi yotayidwa ya chisindikizo chofewa ndi kalasi V kapena kalasi VI ya GB / T4213. Kwa kapangidwe kovuta, mpirawo uja umapangidwa ndi ma chromium opanga, kupondaponda kwa cangside, kupopera mbewu mankhwala osokoneza bongo, etc., kukonza moyo wautumiki wa valavu.
3. Tsegulani ndikutseka mwachangu. V-mtundu wa V-LE BEL ndi valavu yamiyala ya Stroke, kuyambira kutseguka kwathunthu kuti mutsegule ndi ndulu yotsekedwa bwino 90 Pambuyo kukhazikitsa valavu yamagetsi, imatha kusinthidwa malinga ndi chizindikiro cha Analog Siginechal 4-20Ma Ratio.
4.. Spool amatengera mawonekedwe 1/4 hemispherical mawonekedwe okhala ndi mpando. Pakakhala tinthu tating'onoting'ono tomwe timakhala okhazikika, mawonekedwe a canch driveke sadzapezeka ngati ma valve wamba. Palibe kusiyana pakati pa mpira wowoneka bwino ndi mpando, womwe umakhala ndi mphamvu yayikulu, makamaka yoyenera kuwongolera ndi tinthu tokhazikika. Kuphatikiza apo, pali mavuvu owoneka ngati a Vel ali ndi spofu yapadziko lonse lapansi, yomwe ndi yoyenera kwambiri yopanikizika kwambiri ndipo imatha kuchepetsa kuwonongeka kwa mpirawo pomwe kusiyana kwakukulu kumachitika. Imatengera mpando umodzi kapena malo olunjika pampando. Vorive yowoneka bwino ya V
5. V-mtundu wa mpira wa mpira ndi mawonekedwe okhazikika, mpando umadzaza ndi masika, ndipo amatha kuyenda m'njira yotuluka. Imatha kulipirira spoul kuvala, kutalikitsa moyo wa ntchito. Masika ali ndi hexalasal masika, funde la masika, disc Spring, cylindrical comprew ndi zina. Mkuluyo akakhala ndi zodetsa zazing'ono, ndikofunikira kuwonjezera mphete zopita kumapeto kwa kasupe kuti muteteze ku zosafunikira. Pa minda iwiri yosindikizidwa padziko lonse lapansi, nyumba yoyandama imagwiritsidwa ntchito.
. Tengani njira zamagetsi yolumikizira pakati pa thupi la valavu, tsinde ndi gawo. Tsatirani ndi GB / T26479 PROTORD-Poicent yolimba ndi GB / T12227 Intistriction.
7. Vomber Vanive wa mpira malinga ndi kapangidwe kosiyanasiyana kwa chipindacho, pali mawonekedwe a ectronent, kapangidwe kake, kapangidwe kawiri, kapangidwe kake ka eccentric. Kapangidwe kake kogwiritsidwa ntchito ndi zero eccentric. Kapangidwe ka eccentric kumatha kumasula ndulu pampando pomwe itsegulidwa, muchepetse kuvala kwa mphete ya Chisindikizo ndikukulitsa moyo wa ntchito. Pamene kutsekedwa, mphamvu ya eccentric imatha kupangidwa kuti ipititse patsogolo.
8. Njira yoyendetsa v-mtundu wa VEM ili ndi yogwirizira mtundu, kufalikira kwa nyongolotsi, kapamuni, magetsi, magetsi, elecraulic kulumikizana ndi njira zina zoyendetsera.
9.V
Varve valve valavu imakhalanso ndi mawonekedwe owoneka bwino. Kulephera kuvuta, komanso acid ndi alkali ogundana kwambiri, oyenera kuwongolera matchulankhani. Mafuta a fluorine omwe amakhala nawonso ali ndi kapangidwe kambiri kambiri, womwe umagwiritsidwa ntchito pokonzanso ndi kuwongolera acid ndi alkali. Kugwiritsa ntchito kwa v-mtundu wa v-mtundu wa mpira kumakhala kochulukirapo.
✧ Ntchito-yogulitsa
Ntchito yogulitsa pambuyo pa STV valavu (vundikirani valavu) (v doko) ndilofunika kwambiri, chifukwa ntchito yogulitsa itatha ingathe kugwira ntchito nthawi yayitali komanso yolimba. Otsatirawa ndi omwe agulitsa pambuyo-ankhondo ena oyendayenda:
1.Custallation ndi kutumiza: Ogwira ntchito ogulitsa pambuyo poti apite kumalowo kuti akhazikitse mavesi a mpira kuti awonetsetse kuti ntchito yake yokhazikika komanso yokhazikika.
Kukonzekeretsa: Sungani nthawi zonse za mpira wa mpira kuti muwonetsetse kuti zili bwino kwambiri ndikuchepetsa wolephera.
3.Koma: Ngati chipinda choyandama cha mpira chimalephera, ogwira ntchito ogulitsa omwe ali ndi vuto la ntchito amatenga nthawi yayitali kwambiri kuti atsimikizire kuti mwachita ntchito.
Kusintha kwa 4.Pambiri: Poyankha zida zatsopano ndi matekinoloje atsopano omwe akubwera pamsika, ogwira ntchito ogulitsa pambuyo pake amalimbikitsa njira zosinthira makasitomala kuti awapatse bwino zinthu.
5. Maphunziro a Chidziwitso: Ogwira ntchito ogulitsa pambuyo-atagulitsa anzeru kwa ogwiritsa ntchito kuti athandize oyang'anira ndi kuchuluka kwa ogwiritsa ntchito pogwiritsa ntchito ma Grave a mpira. Mwachidule, ntchito yogulitsa mpira ya mpira iyenera kutsimikiziridwa mbali zonse. Mwanjira imeneyi pokhapokha ngati zingathetse ogwiritsa ntchito bwino ndikugula chitetezo.
