Valve application classification vharafu gasket mhando
Universal inoshanda valve
General service mavharuvhu ndeaya akagadzirirwa maoperation akawanda ane low pressure ratings muANSI kirasi 150 kusvika 600 (dhayamita DN16 kusvika DN100) uye mwero tembiricha ratings kubva -50 kusvika 650H (-46 kusvika 343 c). Fly corrosive media uye yakajairwa kudzvanywa inodonha pasina kukonzera cavitation uye flash. General sevhisi mavharuvhu akagadzirwa ane dhigirii rekuchinjana uye kuchinjika kugonesa
Vanoshandiswa mumamiriro ezvinhu akaoma. Zvishandiso zvemuviri zvinotsanangurwa sekabhoni simbi uye simbi isina tsvina. Mufananidzo 1.9 inoratidza ngano yeaviri-sevhisi mavharuvhu, imwe inoshanda nemaoko uye imwe otomatiki.
Special kushanda valve
Special sevhisi mavharuvhu mavharuvhu akagadzirwa akagadzirirwa kushandiswa kumwe chete uko kwakajairwa mashandiro anoita zvisingatarisirwi. Nekuda kweiyo yakasarudzika dhizaini uye kugadzirwa kwayo, inogona chete kushandiswa pasi peiyo chaiyo yekushanda paramita uye mamiriro ekushanda. Chimiro ichi chinowanzo shandiswa kubata tembiricha inodiwa, kureba, kana zvepakati muyedzo yechipiri. FIG. 1.10 inoratidza vharafu yekudzora yakagadzirwa nemuviri wakareruka uye ceramic spool yekubata yakasakara mineral mamiriro anosanganisira jecha particles uye high pressure air.
Severe service valve
Kunyanya kushanda kwevhavha, iyo ine maitiro anokosha ekubata zvinhu zvinoputika, jekiseni repamusoro-soro rinodonha rinokonzera cavitation yakaoma, flash, kuvhara kana kukwirira kwemheremhere. Iyo valve inogona kugadzirwa zvakanaka pane globe valve spool. Kana yakakosha disc; Kana kuti mabhora akakosha anogona kubatanidzwa mumavharuvhu ekutenderera kuderedza kana kudzivirira kukanganisa panguva yekushanda. Uye zvakare, maopareta kana ma process operators anoda akakosha actuators kuti akunde simba rekuita. FIG. 1.11 inoratidza vharafu yebasa yakasimba inokwanisa kubata 1100H (593 c) liquid calcium ine spool yakawanda.
Bata high pressure drop ne special cool warping bonnet. Iyo electro-hydraulic actuator inokwanisa kugadzira 20,000 lb (889600N) yekusundira.
Mavharuvhu gaskets anowanzo shandiswa gaskets asiri-metallic gaskets, semi-simbi gaskets uye simbi gaskets. Non-metallic gasket inozivikanwawo segasket, yakadai seasbestos rabha sheet, rabha, ptfe, nezvimwewo, gasket yekushisa, kumanikidzwa haisi nguva dzakakwirira. Semi-metal gasket inoumbwa nesimbi zvinhu uye zvisiri-metal zvinhu, senge flexible graphite composite gasket, winding gasket, metal coated gasket uye zvichingodaro. Iyo semi-metal gasket inotakura yakafara siyana yekushisa uye kudzvanywa pane isiri-simbi gasket. Yese gaskets simbi yakagadzirwa nesimbi, kusanganisira waveform, mazino chimiro, elliptic, octagonal, lens pad, cone pad uye zvichingodaro. Metal gasket yekupisa yakanyanya uye yakanyanya kudzvanywa maapplication. 1 Mamiriro ekushandiswa kweasiri-metallic gaskets Ona Table 1-4-1 yemamiriro ekushandiswa kweasiri-metallic gaskets Mamiriro ekushandisa zita kodhi kumanikidza level MPA inoshanda tembiricha ℃ natural rubber nr2.0-50 ~90 chlorinated D rubber cr2.0 -40 ~100D nitrile rubber nbr2.0-30 ~110 styrene butadiene rubber sbr2.0-30 ~100 ethylene propylene rubber epdm2.0-40 ~130 fluorine rubber Viton2.0- 50~200 asbestos 5000000000000000000000000000000000000000000000000000-200 asbestos-asbestos shizha X4B00000000000000000000000000000000000000000000000000000000000000000000000000-2000 .t
Nguva yekutumira: Jun-22-2022
