Vavhavha yekuisa chisimbiso pamusoro pezvinhu zvinoshanda tembiricha yepakati kuenzanisa tafura yevhavha yekumanikidza bvunzo inofanirwa kuenderana neiyo 16 misimboti uye zvinhu zvinoda kutariswa.
Valve sealing surface material inoshanda tembiricha yepakati kuenzanisa tafura
zvinhu
Inokodzera tembiricha yebasa
Nhungamiro dzekushandisa
Butyl rabha Buna-N
-23 ℃ ~ 82 ℃
Pfupi -23 ℃ ~ 120 ℃
Butadiene rubber ine yakanaka self-malleability, kupfeka resistance uye hydrocarbon resistance properties, as a general material inogona kushandiswa mumvura, vacuum, acid, munyu, alkali, lipid, oil, butter, hydraulic oil, glycol nemamwe midhiya, asi haigoni. Inoshandiswa mu **, ketone, nitrate uye fluorinated hydrocarbon nzvimbo.
YiBing rabha
EPDM
-40 ℃ ~ 135 ℃
Pfupi -50 ℃ ~ 170 ℃
Ethylene propylene rubber yakanaka universal synthetic rubber, inogona kushandiswa mumvura inopisa, zvinwiwa, zvigadzirwa zvemukaka, methyl ketone, doro, nitrate uye glycerol nemamwe midhiya, asi haigone kushandiswa muhydrocarbon based oil, inorganic matter kana solvent.
Fluoroprene Neoprene
-29 ℃ ~ 135 ℃
Pfupi -35 ℃ ~ 113 ℃
Fluoroprene rabha inogona kushandiswa muasidhi, oiri, mafuta, bhotela zvinonyungudutsa uye mamwe midhiya, ine kurwisa kwakanaka kune anhydrous ammonia uye kuita kwedoro.
Fluorinated rabha
Viton
-29 ℃ ~ 205 ℃
Fluorinated rabha inopesana nehydrocarbon based oiri, gasi remafuta uye zvimwe zvigadzirwa zvepetroleum zverabha yakanyungudutswa, inokodzera mvura, mafuta, mweya, asidhi uye mamwe midhiya, asi haigone kushandiswa kupfungaira, pamusoro pe82 ℃ mvura inopisa kana kunyudzwa. alkali system.
Silicone rabha
Silicone
-40 ℃ ~ 180 ℃
Silicone rubber kuramba kune tembiricha yakadzika, tembiricha yakaderera, kugadzikana kwemakemikari, inoshandiswa zvakanyanya muasidhi yakasimba, isina simba alkali uye maindasitiri ezvekudya.
PTFE PTFE
-10 ℃ ~ 200 ℃
Polytetrafluoroethylene ine yakagadzikana makemikari zvimiro, yakasarudzika pamusoro isiri-viscosity, yakanaka lubricity uye anti-kuchembera zvivakwa, inoshandiswa zvakanyanya mumaasidhi akasimba, mabhesi asina simba, maoxidants akasimba uye mamwe ma media anoparadza.
Kuongororwa kwevhavhavhavha inoteerana nemisimboti uye zvinhu zvinoda kutariswa mu16 valve yekugadzira dhizaini yakaoma uye yakapusa, yakajairika kugadzirwa kwemavharuvhu senge gedhi vharafu, bhora vharafu, globe vharafu, butterfly vharafu, cheki vharafu, kutenderera kwekugadzira kazhinji. mumazuva matatu, mavharuvhu akanaka ekugadzira anofanirwa kupfuura nemhando dzakasiyana dzekuongorora kwekuita, kusanganisira * * yakakosha bvunzo ndeyekuyedza. Kudzvanya bvunzo ndeyekuyedza kana iyo yekumanikidza kukosha kwevhavha inogona kutakura inosangana nezvinodiwa zvekugadzira mirairo, iyo general valve pressure test inofanirwa kutevedzera zvinotevera misimboti uye zvinhu zvinoda kutariswa:
Kugadzirwa kwemavharuvhu inzira yakaoma uye iri nyore. Kutenderera kwekugadzirwa kwemavharuvhu akajairwa senge mavharuvhu egedhi, mavharuvhu ebhora, mavharuvhu epasi, butterfly mavharuvhu uye cheki mavharuvhu kazhinji ari mumazuva matatu. Kugadzirwa kwemavharuvhu kunofanirwa kuyedzwa neakasiyana maitiro ebvunzo, pakati peiyo inonyanya kukosha bvunzo ndeyekumanikidza bvunzo. Kudzvanya bvunzo ndeyekuyedza kana iyo yekumanikidza kukosha kwevhavha inogona kutakura inosangana nezvinodiwa zvekugadzira mirairo, iyo general valve pressure test inofanirwa kutevedzera zvinotevera misimboti uye zvinhu zvinoda kutariswa:
(1) Mumamiriro ezvinhu akajairwa, vharuvhu haisati yaiswa pakuyedzwa kwesimba, asi muviri wevharuvhu uye chivharo chevhavha mushure mekugadzirisa kana kukuvadzwa kwekuora kunofanira kuiswa pakuyedzwa kwesimba. Pavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavha,kuramba kumanikidzika uye kudzosa kumanikidzwa uye mamwe maedzo anofanirwa kuenderana netsanangudzo uye zvipimo zvemaitiro akakodzera.
(2) Simba uye kusimba kwevhavha kunofanira kuongororwa. Low-pressure valve spot check 20%, yakadai seyasina kukodzera inofanira kuva 100% yekuongorora; Mavharuvhu epakati nepamusoro anofanira kuongororwa 100%.
(3) Panguva yekuedzwa, valve inofanira kuiswa munzira yekuongorora nyore.
(4) Kune mavharuvhu ari muchimiro chewelded yekubatanidza, conical chisimbiso kana O-ring chisimbiso chinogona kushandiswa pakumanikidza bvunzo kana bvunzo yekumanikidza ine bofu ndiro isingagoneke.
(5) hydraulic test inoedza kubvisa mhepo yevhavha.
(6) Kumanikidzwa kunofanira kuwedzera zvishoma nezvishoma panguva yekuedzwa, uye kukurumidza uye kamwe-kamwe kudzvinyirira hakubvumirwi.
(7) Kuyedzwa kwesimba uye yekuisa chisimbiso bvunzo nguva inowanzo 2-3 maminetsi, akakosha uye akakosha mavharuvhu anofanirwa kugara maminetsi mashanu. Diki dhayamita yevharuvhu yekuyedza nguva inogona kupfupika, hombe dhayamita yevharuvhu yekuyedza nguva inogona kuenzana kureba. Panguva yekuedzwa, kana pasina mubvunzo, nguva yekuedza inogona kuwedzerwa. Panguva yekuyedzwa kwesimba, usatendera muviri uye kuvhara kudikitira kana kudonha. Kuisa chisimbiso bvunzo, iyo yakajairika vharafu inongova kamwe chete, vharafu yekudzivirira, yakakwira vharafu uye mamwe mavharuvhu mbishi anoda kuitwa kaviri. Munguva yekuedzwa, kudzvinyirira kwakaderera, hombe dhayamita isingakoshi mavharuvhu uye mavharuvhu ane zvigadziro zvinobvumira kubuda kunobvumirwa kuve netrace leakage phenomenon; Nekuda kwezvinodiwa zvakasiyana zvemavharuvhu epasirese, magetsi echiteshi mavharuvhu, Marine mavharuvhu uye mamwe mavharuvhu, izvo zvinodikanwa zvekudonha zvinofanirwa kuitwa zvinoenderana nemirairo yakakodzera.
(8) Iyo throttle valve haina kuvharwa yekuisa chisimbiso bvunzo, asi inofanirwa kuve bvunzo yesimba uye kurongedza uye gasket kuvhara bvunzo.
(9) Mukuedza kwekumanikidza, simba rekuvhara valve rinobvumira chete simba remuviri remunhu kuti rivhare; Hazvibvumirwi kushandisa simba nemagetsi kana mamwe maturusi (kunze kwe torque wrenches). Kana iyo dhayamita yevhiri reruoko yakakura kupfuura 320mm, vanhu vaviri vanobvumidzwa kuivhara pamwechete.
(10) Ivhavha ine chisimbiso chepamusoro inofanira kubudiswa kunze kwekurongedza kuti iedzwe kuiswa chisimbiso. Mushure mekunge chisimbiso chepamusoro chavharwa, tarisa kana pane kuvuza. Paunenge uchiyedza negasi, zadza bhokisi rekuisa nemvura kuti riongororwe. Usabvumira chisimbiso chepamusoro kuti ive munzvimbo yepedyo kana uchirongedza bvunzo dzekusimba.
(11) uko valve ine mudziyo wekutyaira, painoyedza kuiswa kwayo chisimbiso, mudziyo wekutyaira unofanirwa kushandiswa kuvhara vharafu yekuvharisa bvunzo. Manual drive mudziyo, inofanirawo kushandiswa kuvhara iyo valve seal test.
(12) Muedzo wesimba uye bvunzo yekuisa chisimbiso yakaiswa pane hombe yevhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavha, musimba guru revharuvhu uye chisimbiso bvunzo; Kana iyo huru valve shutoff yakavhurwa, inofanirawo kuvhurwa maererano.
(13) Panguva yekuyedzwa kwesimba revharuvhu yesimbi yakakandwa, sando yemhangura inofanira kushandiswa kubaya muviri wevharuvhu uye chivharo chevharuvhu kutarisa kana pane kuvuza.
(14) Kana vheji ichiedzwa, chisimbiso chepamusoro chevhavha hachibvumirwi kuiswa mafuta kunze kwekuti chisimbiso chevhavha yevhavha inobvumirwa kuiswa mafuta.
(15) Munguva yekumanikidzwa kwevhavhavhavha, kumanikidzwa kweplate yebofu pavhavha haifaniri kunge yakakura zvikuru, kuitira kuti udzivise deformation yevhavha uye inokanganisa maitiro ekuedza (kana simbi yakakandwa yakamanikidzwa zvakasimba; ichakuvadzwa).
(16) Mushure mokunge kuedzwa kwevhavha yevhavha kwapera, mvura iri muvhavha inofanira kubviswa munguva uye kuchenesa, uye rekodhi rekodhi rinofanira kuitwa.
Nguva yekutumira: Aug-25-2022
