Muzochitika zachizolowezi, ma valve a mafakitale sachita mayeso a mphamvu akagwiritsidwa ntchito, koma akakonza thupi la valve ndi chivundikiro cha valve kapena kuwonongeka kwa dzimbiri kwa thupi la valve ndi chivundikiro cha valve ayenera kuchita mayeso a mphamvu. Pa ma valve achitetezo, kuthamanga kwa malo ndi kuthamanga kobwerera ndi mayeso ena ziyenera kutsatira malangizo ndi malamulo oyenera. Valavu iyenera kuyesedwa kuti ione ngati ili ndi mphamvu komanso yolimba isanayambe kuyikidwa. Ma valve apakati ndi okwera ayenera kuyang'aniridwa. Mayeso a kuthamanga kwa valve omwe amagwiritsidwa ntchito kwambiri ndi madzi, mafuta, mpweya, nthunzi, nayitrogeni, ndi zina zotero. Mitundu yonse ya ma valve a mafakitale kuphatikiza ma valve a pneumatic ndi njira zoyesera kuthamanga kwa ma valve ndi izi:

1.Valavu ya mpiranjira yoyesera kupanikizika

Kuyesa mphamvu ya valavu ya mpira wa pneumatic kuyenera kuchitika mu theka lotseguka la mpira.

(1)Mpira woyandamamayeso okakamira kwa valavu: valavu yatseguka theka, mbali imodzi imalowetsedwa mu choyezera, ndipo mbali inayo imatsekedwa; Tembenuzani mpirawo kangapo, tsegulani mbali yotsekedwa valavu ikatsekedwa, ndipo yang'anani momwe kutsekera ndi gasket zimagwirira ntchito, ndipo sipayenera kukhala kutuluka. Kenako yambitsani choyezera kuchokera mbali inayo ndikubwereza mayeso omwe ali pamwambapa.

(2)Mpira wokhazikikaMayeso a valavu yolimba: Musanayambe mayeso, mpira umazunguliridwa kangapo popanda katundu, ndipo valavu yokhazikika ya mpira imakhala yotsekedwa, ndipo choyezera chimatengedwa kuchokera kumapeto ena kupita ku mtengo wotchulidwa; Choyezera cha kuthamanga chimagwiritsidwa ntchito kuwona momwe chimatsekera kumapeto kwa cholowera. Kulondola kwa choyezera cha kuthamanga ndi 0.5 ~ 1, ndipo mulingo woyezera ndi nthawi 1.5 ya kuthamanga kwa mayeso. Munthawi yotchulidwa, palibe chochitika cha kupsinjika chomwe chikuyenera; Kenako yambitsani choyezera kuchokera kumapeto ena ndikubwereza mayeso omwe ali pamwambapa. Kenako, valavu imatsegulidwa theka, malekezero onse awiri amatsekedwa, mkati mwake mumadzazidwa ndi media, ndipo kulongedza ndi gasket zimawunikidwa pansi pa kuthamanga kwa mayeso popanda kutuluka.

(3)Valavu ya mpira wa njira zitatu sayenera kuyesedwa kuti awone ngati ali olimba m'malo osiyanasiyana.

2.Valavu yowunikiranjira yoyesera kupanikizika

Mkhalidwe wa mayeso a valavu yowunikira: Mtundu wokweza, valavu yowunikira diski, uli pamalo opingasa komanso olunjika; Mzere wozungulira wa valavu yowunikira yozungulira ndi mzere wozungulira wa diski uli pafupi kufanana ndi mzere wopingasa.

Pa nthawi yoyesa mphamvu, choyezera chimayikidwa pamtengo wotchulidwa kuchokera kumapeto olowera, mbali inayo imatsekedwa, ndipo thupi la valavu ndi chivundikiro cha valavu zimayesedwa popanda kutuluka.

Kuyesa kotseka kuyenera kuyambitsa njira yoyesera kuchokera kumapeto kwa potulukira, kuyang'ana pamwamba pa chotseka kumapeto kwa polowera, ndipo kulongedza ndi gasket ziyenera kukhala zovomerezeka ngati palibe kutuluka.