BS 1868 ndeyeBritish Standard inotsanangura zvinodikanwa zvesimbi cheki mavharuvhu kana asingadzose mavharuvhu ane zvigaro zvesimbi kuti zvishandiswe mumaindasitiri akadai sepetroleum, petrochemical, uye akabatana maindasitiri. Iyi chiyero inovhara zviyero, kudzvanywa-tembiricha kuyerwa, zviwanikwa, uye zvinodiwa zvekuyedzwa zveswing cheki mavharuvhu.Mukati meiyo swing cheki vharafu inogadzirwa zvinoenderana neBS 1868, ichave yakagadzirirwa kuzadzisa chaiyo dimensional uye maitiro ekuita anotsanangurwa muchiyero. Izvi zvinovimbisa kuti vheji inogona kunyatsodzivirira kudzoka shure uye inosangana nekuchengetedzwa kwakakodzera uye hutano hwehutano hwekushandiswa kwayo.Zvimwe zvezvinhu zvakakosha zve swing check valve inogadzirwa kuBS 1868 mitemo inogona kusanganisira chivharo chakavharidzirwa, zvindori zvechigaro zvinogadziriswa, uye swing-type disc. Aya mavharuvhu anowanzo shandiswa mukutsikirira uye kutonhora kwakanyanya uko kudzivirira kudzoka shure kunokosha.Kana uine mibvunzo yakananga nezve swing cheki vharafu inogadzirwa kune BS 1868 miyero kana kuti inoda mamwe mashoko pamusoro pezvainoda, zvinhu, kana zvinodiwa zvekuedza, ndapota ndiudzei, uye ndingafara kubatsira mberi.
1. Muviri wevhavhavha uye chivharo chevhavha yekubatanidza fomu: Kirasi150 ~ Kirasi600 uchishandisa chivharo chevhavhavhavha; Kirasi900 kusvika Kirasi2500 inotora yekuzvimanikidza yekuvharisa chisimbiso chivharo.
2. Kuvhura nekuvhara zvikamu (valve disc) dhizaini: dhisiki revharuvhu rakagadzirwa semhando yekuzunguza, ine simba rakakwana uye kuoma, uye chisimbiso chepamusoro chevhavha disc chinogona kunge chiri pamusoro welding yegoridhe zvinhu kana inlaid isiri-simbi zvinhu zvinoenderana nemushandisi zvinodiwa.
3. Vavhavha inovhara yepakati gasket yakajairika fomu: Kirasi150 cheki vharafu uchishandisa Stainless simbi graphite composite gasket; C|ass300 cheki vharafu nesimbi isina tsvina graphite ronda gasket; Kirasi600 cheki vharafu inogona kushandiswa Stainless simbi ibwe 4. Ingi inomonereka gasket inogonawo kushandiswa simbi mhete gasket; Iyo Kirasi900 kune Kirasi2500 cheki mavharuvhu anoshandisa ega-kumanikidza kuvhara mhete dzesimbi.
5. Fomu yekushanda: Chengetedza valve inovhura kana kuvhara maererano nemamiriro ekuyerera kwepakati.
6. Rocker design: The rocker ine simba rakakwana, rusununguko rwakakwana rwekuvhara diski yevhavha, uye yakashongedzerwa nemudziyo wekudzivirira kudzivirira nzvimbo yekuvhura kubva pakakwirira kuti ivhare.
7. Kusimudza mhete yekugadzira: Ivhavha yakakura-caliber cheki yakagadzirwa nemhete yekusimudza uye chigadziro chekutsigira, iyo yakanakira kusimudza.
Munguva yekuvhura nekuvhara nzira yesimbi yakaumbwa yeglobe valve, nekuti kukweshera pakati pe disc uye yekuvharisa pamusoro pemuviri wevharuvhu idiki pane iyo yevhavha yegedhi, haibatike.
Kuvhura kana kuvhara kwevhavha yevhavha ipfupi, uye ine yakavimbika kwazvo yekucheka-kubvisa basa, uye nekuti shanduko yevhavha yechigaro chevhavha inoenzana nekurohwa kwevhavha disc, yakanyatso kuenderana nekugadziriswa kweyero yekuyerera. Naizvozvo, rudzi urwu rwevharuvhu rwakanyatsokodzera kucheka-kubvisa kana kudzora uye throttling.
Product | BS 1868 Swing Check Valve |
Zita dhayamita | NPS 2”, 3”, 4”, 6”, 8” , 10” , 12” , 14”, 16”, 18”, 20” 24”, 28”, 32”, 36”, 40”, 48” |
Zita dhayamita | Kirasi 150, 300, 600, 900, 1500, 2500. |
End Connection | Flanged (RF, RTJ, FF), Welded. |
Operation | Heavy Hammer, Hapana |
Zvishandiso | A216 WCB, WC6, WC9, A352 LCB, A351 CF8, CF8M, CF3, CF3M, A995 4A, A995 5A, A995 6A, Alloy 20, Monel, Inconel, Hastelloy, Aluminium Bronze uye mamwe alloy yakakosha. |
A105, LF2, F5, F11, F22, A182 F304 (L), F316 (L), F347, F321, F51, Alloy 20, Monel, Inconel, Hastelloy | |
Chimiro | Bolted Cover, Pressure Seal Cover |
Dhizaini uye Mugadziri | API 6D |
Takatarisana | ASME B16.10 |
End Connection | ASME B16.5 (RF & RTJ) |
ASME B16.25 (BW) | |
Kuedza uye Kuongorora | Purogiramu inonzi 598 |
Zvimwe | NACE MR-0175, NACE MR-0103, ISO 15848, API624 |
Uyewo inowanikwa per | PT, UT, RT,MT. |
Senyanzvi BS 1868 Swing Tarisa Valve uye mutengesi kunze, tinovimbisa kupa vatengi nemhando yepamusoro-soro mushure mekutengesa sevhisi, kusanganisira zvinotevera:
1.Kupa mazano ekushandiswa kwechigadzirwa uye mazano ekugadzirisa.
2.Nekukundikana kunokonzerwa nezvinetso zvehutano hwechigadzirwa, tinovimbisa kupa rubatsiro rwehutano uye kugadzirisa matambudziko mukati menguva pfupi.
3.Kunze kwekukuvadza kunokonzerwa nekushandiswa kwakajairika, tinopa mahara kugadzirisa uye kutsiva masevhisi.
4.Tinovimbisa kupindura nekukurumidza kune zvinodiwa nevatengi panguva yechigadzirwa waranti nguva.
5. Isu tinopa tsigiro yenguva refu yehunyanzvi, kubvunzana pamhepo uye masevhisi ekudzidzisa. Chinangwa chedu ndechekupa vatengi ruzivo rwesevhisi yakanakisa uye kuita kuti ruzivo rwevatengi ruwedzere kunakidza uye nyore.