ductile iron rabara yosindikiza gulugufe valavu

Henry Pratt ndi wotsogola wopanga mavavu ndi zowonjezera, ali ndi zaka zopitilira 60 zautumiki mumakampani opanga magetsi.
Pratt adalowa mumakampani opanga magetsi pogwiritsa ntchito kukonza pa Federal Edison Building ku Chicago. Malowa anali amodzi mwa malo opanga magetsi a Edison panthawiyo. Valavu ikufunika mupaipi yamadzi yomwe pakadali pano ilibe valavu ndipo ili ndi mutu wawung'ono. Henry Pratt adafunsidwa kuti apange valavu yowonongeka kuti athetse vutoli. Mapangidwe opangidwa ndi valavu yagulugufe yotanuka, yomwe tsiku lina idzakhala chinthu chachikulu pakampani.
Mpaka pakati pa zaka za m'ma 1940, Pratt adapitiliza kupanga mavavu agulugufe osindikizira molingana ndi mikhalidwe yake, koma nkhondo yachiwiri yapadziko lonse itatha, Pratt adaganiza zopanga valavu ngati chingwe chopangira magetsi ndi madzi. Masiku ano, Henry Pratt ndi mtsogoleri pamisika yamagetsi ndi madzi.
Vavu yamadzi a nyukiliya ya 1100 ndi gawo la ASME 2 ndi 3 valavu ya butterfly yokhudzana ndi chitetezo cha nyukiliya, yoyambira kukula kuchokera mainchesi 6 mpaka 36 mainchesi (ndi yokulirapo ngati pakufunika). Kapangidwe ka kalasi ndi koyenera kwa ANSI 150 # kalasi yapakatikati yokhazikika. Kwa mavavu akulu kuposa mainchesi 24, 75 psig service grade, ASME Sec imalola. III code gulu 1678, likupezeka.
Mapangidwe a mndandanda wa 1100 amaphatikizapo thupi la flange, lomwe limapangidwa ndi zipangizo zogwirizana ndi SA-216, Gr. WCB kapena SA-516, Gr. 70; A valve disc, yomwe imatha kupangidwa kapena kuponyedwa mawonekedwe kapena chitsulo cha carbon. The carbon zitsulo chimbale ali zosapanga dzimbiri valavu mpando m'mphepete, kuphimba lonse m'lifupi mwa valavu mpando pamwamba; ndi mpando wa vavu wa rabara, womwe umamangiriridwa kosatha kapena umakanizidwa mwamakina mu thupi la valavu popanda Kugwiritsa ntchito zomangira za ulusi. Mtsinje wa valve ukhoza kukhala chinthu chimodzi chomwe chimadutsa mu diski ya valve, kapena chikhoza kukhala ndi nthiti ziwiri zomwe zimalowetsedwa mu nthiti ya valve.
Vavu ya nyukiliya ya 1200 ndi ASME Class 2 ndi Class 3 yokhudzana ndi chitetezo cha nyukiliya ya butterfly air service, kuyambira kukula kwa mainchesi 6 mpaka 48 mainchesi. Mapangidwe apangidwe ndi ofanana ndi mndandanda wa 1100.
Mapangidwe a mndandanda wa 1200 ndi ofanana ndi a mndandanda wa 1100, kuphatikizapo thupi la flange, chojambula chokhazikika kapena chopangidwa ndi chitsulo chopangidwa ndi chitsulo chokhala ndi mpando wa rabara wokhazikika komanso wosinthika, ndi chidutswa chimodzi kapena nthiti ziwiri. .
Vavu yamadzi a nyukiliya ya 1400 ndi gawo la ASME 2 ndi 3 valavu ya butterfly yokhudzana ndi chitetezo cha nyukiliya, yoyambira kukula kuchokera mainchesi 3 mpaka 24 mainchesi. Kalasi kamangidwe ndi oyenera muyezo kuthamanga kalasi ANSI 150# kalasi.
Mapangidwe ndi zida zamapangidwe amtundu wa 1400 amatsanzira mndandanda wa 1100 chifukwa ntchito zawo ndizofanana.
Vavu yagulugufe yosindikizidwa ndi mphira ya Triton XR-70 imakwaniritsa zofunikira za AWWA C504, kuyambira kukula kwa mainchesi 24 mpaka mainchesi 144. Mitundu yodziwika bwino ya valavu ya thupi ndi flange x flange end, mechanical joint (MJ) mapeto (24 mainchesi-48 mainchesi), ndi flange ndi MJ mapeto (24 mainchesi, 30 mainchesi, ndi 36 mainchesi).
Zinthu za Triton zikuphatikiza mapangidwe a mpando wa Pratt E-Lok ndi kapangidwe ka tray yozungulira. Mapangidwe a mpando wa valve wa E-Lok amavomerezedwa, ndipo mpando wa valve wa rabara umayikidwa mu thupi la valve kuti utseke mpweya. Mapangidwe a thireyi ozungulira amakhala ndi mphamvu zapamwamba ndi kulemera kopepuka kuposa kapangidwe ka thireyi kalikonse pamsika pano. Ulalo wamakampani www.henrypratt.com
Nkhani zamphamvu komanso zakuya zili ndi nkhani zokhuza mphamvu zamphamvu komanso zomwe zikuchitika m'magawo aposachedwa kwambiri amagetsi, mphamvu zongowonjezwdwa, solar, mphepo yamkuntho, mphamvu yamadzi, malasha, ndi mphamvu yanyukiliya.