Valavu ya SDV (Valavu Yotseka)

Kufotokozera Kwachidule:

China, SDV Valve, Kupanga, Fakitale, Mtengo, Shut Down Valve, chidutswa chimodzi, zidutswa ziwiri, zidutswa zitatu, full bore, reduce bore, ESDV, ma valve zipangizo zili ndi A216 WCB, A351 CF3, CF8, CF3M, CF8M, A352 LCB, LCC, LC2, A995 4A. 5A, Inconel, Hastelloy, Monel ndi alloy ina yapadera. Kupanikizika kuchokera ku Class 150LB mpaka 2500LB.

Tumizani imelo kwa ife

Tsatanetsatane wa Zamalonda

Ma tag a Zamalonda

✧ Kufotokozera

Valavu ya SDV (Shut Down Valve) ndi valavu yokhala ndi potseguka ngati V mbali imodzi ya spool ya theka la mpira. Posintha potseguka kwa spool, dera lozungulira la kayendedwe kapakati limasinthidwa kuti lisinthe kayendedwe ka madzi. Ingagwiritsidwenso ntchito powongolera switch kuti iwonetse kutseguka kapena kutsekedwa kwa payipi. Imadziyeretsa yokha, imatha kusintha kayendedwe ka madzi pang'ono m'malo otseguka ang'onoang'ono, chiŵerengero chosinthika ndi chachikulu, choyenera ulusi, tinthu tating'onoting'ono, ndi slurry media.
Gawo lotsegulira ndi kutseka la valavu ya mpira ya mtundu wa V ndi lozungulira lokhala ndi njira yozungulira, ndipo ma hemispheres awiriwa amalumikizidwa ndi bolt ndikuzungulira 90° kuti akwaniritse cholinga chotsegulira ndi kutseka.
Amagwiritsidwa ntchito kwambiri mu makina owongolera odziyimira pawokha a mafuta, makampani opanga mankhwala ndi zina zotero.

✧ Magawo a Ma Valves a Mpira Omwe Anasefedwa Mokwanira

Chogulitsa	Vavu ya SDV (Shut Down Valve) (V port)
M'mimba mwake mwa dzina	NPS 2”, 3”, 4”, 6”, 8”, 10”, 12”, 14”, 16”, 20”
M'mimba mwake mwa dzina	Kalasi 150, 300, 600, 900, 1500, 2500.
Kulumikiza Komaliza	Flanged (RF, RTJ), BW, PE
Ntchito	Chivundikiro, Zida za Nyongolotsi, Tsinde Lopanda Chilema, Choyambitsa Mpweya, Choyambitsa Magetsi
Zipangizo	Kuponya: A216 WCB, A351 CF3, CF8, CF3M, CF8M, A352 LCB, LCC, LC2, A995 4A. 5A, Inconel, Hastelloy, Monel
Kapangidwe	Kutupa Konse Kapena Kochepa, RF, RTJ, BW kapena PE, Khomo lolowera m'mbali, khomo lapamwamba, kapena kapangidwe ka thupi lolumikizidwa Kutseka Kawiri & Kutuluka Magazi (DBB), Kudzipatula Kawiri & Kutuluka Magazi (DIB) Mpando wadzidzidzi ndi jakisoni wa tsinde Chipangizo Choletsa Kusasinthasintha
Kapangidwe ndi Wopanga	API 6D, API 608, ISO 17292
Maso ndi Maso	API 6D, ASME B16.10
Kulumikiza Komaliza	BW (ASME B16.25)
	MSS SP-44
	RF, RTJ (ASME B16.5, ASME B16.47)
Kuyesa ndi Kuyang'anira	API 6D, API 598
Zina	NACE MR-0175, NACE MR-0103, ISO 15848
Ikupezekanso pa	PT, UT, RT,MT.
Kapangidwe koteteza moto	API 6FA, API 607

✧ Makhalidwe a valavu ya SDV (Vavu Yotseka) (V port)

1. Kukana kwa madzi ndi kochepa, kuchuluka kwa madzi otuluka ndi kwakukulu, chiŵerengero chosinthika ndi chachikulu. Chimatha kufika :100:1, chomwe ndi chachikulu kwambiri kuposa chiŵerengero chosinthika cha valavu yowongolera yokhala ndi mpando umodzi wowongoka, valavu yowongolera yokhala ndi mipando iwiri ndi valavu yowongolera yokhala ndi manja. Makhalidwe ake otuluka ndi ofanana.

2. kutseka kodalirika. Mlingo wotuluka wa kapangidwe ka chisindikizo cholimba chachitsulo ndi Gulu IV la GB/T4213 "Pneumatic Control Valve". Mlingo wotuluka wa kapangidwe ka chisindikizo chofewa ndi Gulu V kapena Gulu VI la GB/T4213. Pa kapangidwe kolimba kotseka, pamwamba pa chisindikizo cha mpira pakati pa chitsulo chingapangidwe ndi pulasitiki yolimba ya chromium, carbide yopangidwa ndi simenti ya cobalt, kupopera tungsten carbide yolimba, ndi zina zotero, kuti chisindikizo cha valve pakati chikhale cholimba.

3. Tsegulani ndi kutseka mwachangu. Valavu ya mpira ya mtundu wa V ndi valavu yozungulira, kuyambira yotseguka kwathunthu mpaka yotsekedwa kwathunthu. Angle 90°, yokhala ndi AT piston pneumatic actuator ingagwiritsidwe ntchito podula mwachangu. Mukayika malo oimika mavavu amagetsi, imatha kusinthidwa malinga ndi chiŵerengero cha chizindikiro cha analog 4-20Ma.

4. Kuchita bwino koletsa. Chopondacho chimagwiritsa ntchito mawonekedwe a hemispherical 1/4 okhala ndi kapangidwe ka mpando waumodzi. Ngati pali tinthu tolimba m'malo olumikizirana, kutsekeka kwa m'mimba sikungachitike ngati ma valve wamba a mpira wamtundu wa O. Palibe mpata pakati pa mpira wooneka ngati V ndi mpando, womwe uli ndi mphamvu yayikulu yodula, makamaka yoyenera kuwongolera zoyimitsidwa ndi tinthu tolimba tomwe tili ndi ulusi kapena tinthu tating'onoting'ono tolimba. Kuphatikiza apo, pali ma valve a mpira wooneka ngati V okhala ndi spool yapadziko lonse, omwe ndi oyenera kwambiri pamavuto apamwamba ndipo amatha kuchepetsa bwino kusintha kwa pakati pa mpira pamene kusiyana kwakukulu kwa kuthamanga kwapangidwa. Imagwiritsa ntchito kutseka mpando umodzi kapena kapangidwe kawiri kotseka mpando. Valavu ya mpira wooneka ngati V yokhala ndi chisindikizo cha mpando wauwiri imagwiritsidwa ntchito kwambiri poyendetsa kayendedwe kabwino ka pakati, ndipo chopondacho chokhala ndi tinthu timene tingayambitse ngozi yotseka m'mimba wapakati.

5. Valavu ya mpira wa mtundu wa V ndi kapangidwe ka mpira wokhazikika, mpando uli ndi kasupe wodzaza, ndipo ukhoza kuyenda m'njira yoyenda. Imatha kubweza yokha kuwonongeka kwa spool, kutalikitsa moyo wa ntchito. Kasupe ali ndi kasupe wa hexagonal, kasupe wa mafunde, kasupe wa disc, kasupe wopondereza wa cylindrical ndi zina zotero. Pamene sing'anga ili ndi zonyansa zazing'ono, ndikofunikira kuwonjezera mphete zotsekera ku kasupe kuti muteteze ku zonyansa. Pa mavavu awiri a global spool V-ball otsekedwa, kapangidwe ka mpira woyandama kamagwiritsidwa ntchito.

6. Ngati pali zofunikira pa moto ndi zotsutsana ndi static, valvu yapakati imapangidwa ndi kapangidwe kachitsulo kolimba, chodzaza chimapangidwa ndi graphite yosinthasintha ndi zinthu zina zosagwirizana ndi kutentha kwambiri, ndipo tsinde la valvu lili ndi phewa lotsekera. Chitani njira zoyendetsera magetsi pakati pa thupi la valvu, tsinde ndi mpira. Tsatirani kapangidwe ka GB/T26479 kosagwirizana ndi moto ndi zofunikira pa GB/T12237 zotsutsana ndi static.

7. Valavu ya mpira yooneka ngati V malinga ndi kapangidwe kosiyana ka kutsekereza kwa pakati pa mpira, palibe kapangidwe kosiyana, kapangidwe kamodzi kosiyana, kapangidwe kawiri kosiyana, kapangidwe katatu kosiyana. Kapangidwe kamene kamagwiritsidwa ntchito kwambiri ndi kosiyana. Kapangidwe kosiyana kameneka kangathe kutulutsa mwachangu spool kuchokera pampando ikatsegulidwa, kuchepetsa kutopa kwa mphete yosindikizira ndikuwonjezera moyo wautumiki. Ikatsekedwa, mphamvu yosiyana ikhoza kupangidwa kuti iwonjezere mphamvu yosindikiza.

8. Njira yoyendetsera ya valavu ya mpira wa V-type ili ndi mtundu wa chogwirira, cholumikizira cha nyongolotsi, cholumikizira cha pneumatic, chamagetsi, chamadzimadzi, cholumikizira chamagetsi ndi njira zina zoyendetsera.

Cholumikizira cha valavu ya mpira ya mtundu wa V-mtundu wa 9. Chili ndi kulumikizana kwa flange ndi clamp m'njira ziwiri, cha global spool, kapangidwe ka kutseka mipando iwiri ndi kulumikizana kwa ulusi ndi socket welding, welding matako ndi njira zina zolumikizira.

10. Valavu ya mpira wa ceramic ilinso ndi kapangidwe ka pakati pa mpira wooneka ngati V. Imalimbana bwino ndi kukalamba, komanso imalimbana ndi dzimbiri la asidi ndi alkali, ndipo ndi yoyenera kwambiri kuwongolera zinthu zozungulira. Valavu ya mpira yokhala ndi fluorine ilinso ndi kapangidwe ka pakati pa mpira wooneka ngati V, komwe kamagwiritsidwa ntchito powongolera ndikuwongolera zinthu zowononga za asidi ndi alkali. Mitundu yosiyanasiyana ya valavu ya mpira wa V ndi yayikulu kwambiri.

✧ Utumiki Wogulitsa Pambuyo Pogulitsa

Ntchito yogulitsa valavu ya SDV (Shut Down Valve) (V port) pambuyo pogulitsa ndi yofunika kwambiri, chifukwa ntchito yogulitsa pambuyo pogulitsa ndi yothandiza komanso yanthawi yake yokha yomwe ingatsimikizire kuti ikugwira ntchito kwa nthawi yayitali komanso mokhazikika. Izi ndi zomwe zili mu ntchito yogulitsa pambuyo pogulitsa m'mavalavu ena oyandama:
1. Kukhazikitsa ndi kuyambitsa: Ogwira ntchito yogulitsa pambuyo pa malonda adzapita kumaloko kukayika ndikukonza valavu yoyandama kuti atsimikizire kuti ikugwira ntchito bwino komanso mokhazikika.
2. Kukonza: Sungani valavu yoyandama nthawi zonse kuti muwonetsetse kuti ikugwira ntchito bwino komanso kuchepetsa kulephera.
3. Kuthetsa Mavuto: Ngati valavu yoyandama yalephera, ogwira ntchito yogulitsa pambuyo pogulitsa adzachita kukonza mavuto pamalopo nthawi yochepa kwambiri kuti atsimikizire kuti ikugwira ntchito bwino.
4. Kusintha ndi kukweza zinthu: Poyankha zida zatsopano ndi ukadaulo watsopano womwe ukutuluka pamsika, ogwira ntchito yogulitsa pambuyo pa malonda adzapereka malangizo mwachangu kwa makasitomala kuti asinthe ndikusintha zinthu kuti awapatse zinthu zabwino kwambiri.
5. Maphunziro a chidziwitso: Ogwira ntchito yogulitsa pambuyo pogulitsa adzapereka maphunziro a chidziwitso cha ma valavu kwa ogwiritsa ntchito kuti akonze kayendetsedwe ka kayendetsedwe ka ntchito ndi kukonza kwa ogwiritsa ntchito pogwiritsa ntchito ma valavu a mpira woyandama. Mwachidule, ntchito yogulitsa pambuyo pogulitsa ya valavu ya mpira woyandama iyenera kutsimikizika mbali zonse. Mwanjira imeneyi yokha ndi yomwe ingapatse ogwiritsa ntchito chidziwitso chabwino komanso chitetezo chogula.