Iivalvu ze-pneumatic diaphragm ziivalvu zoshishino ezidibanisa ulawulo oluzenzekelayo kunye nobuchule bezandla ezingxamisekileyo, eziluncedo kakhulu kunye neemeko zokusetyenziswa ezifanelekileyo kakhulu kwiimeko zokusebenza ezinzima. Zixhomekeke kwi-diaphragm ukuze zahlukanise ngokupheleleyo igumbi eliphakathi kwigumbi le-actuator, zisuse ukuvuza kwangaphandle kumthombo ngoyilo olungenabhokisi yokuzalisa, ngelixa zikhusela izinto eziphezulu ezifana nesiqu sevalvu ekungcoleni yi-medium, zizenze zilungele iimeko zokusebenza ezibandakanya imidiya enobuthi kunye neyonakalisayo kakhulu. Ngomzila ogcweleyo wokuhamba okugudileyo onikezela ukumelana nokuhamba okuphantsi, ubungakanani be-DN40 bubonelela ngomthamo wokuhamba okuphezulu kwaye abunangxaki yokuvaleka, nto leyo eyenza ukuba ifaneleke kwimidiya equlethe amasuntswana okanye ithambekele ekukhanyeni.

(umfanekiso: DN40 Pneumatic Diaphragm Valve)

Umzimba wevalvu ungagqunywa ngeplastiki okanye wenziwe ngezinto ezimelana nokugqwala, kwaye udityaniswe neediaphragms ezifana ne-EPDM okanye i-PTFE, inokusingatha ngokuzinzileyo ulwelo olugqwala kakhulu njengezisombululo ze-asidi-base, iibrines, kunye namanzi amdaka. Ivili elingaphezulu lesandla livumela ukuvula/ukuvala ngesandla kunye nokutshixa kwindawo xa kungekho moya, kwaye xa zidityaniswe nomlawuli woxinzelelo lwesihluzo ecaleni, ixhasa ulawulo oluzenzekelayo olukude kunye nokusebenza okungxamisekileyo phantsi kweemeko ezingalindelekanga, ukuhlangabezana neemfuno zokwenza izinto ngokuzenzekelayo kunye nokugcinwa kokhuseleko. Inesakhiwo esilula ngokubanzi, idiaphragm kulula ukuyitshintsha, inikezela ukuya kuthi ga kumashumi amawaka emijikelo yokutshintsha, ukusebenza okuzinzileyo, kunye neendleko zokulungisa eziphantsi.

Zikwaneempawu ezintle kakhulu zokulwa nokungcola kunye neempawu ezilula ukuzicoca. Indlela yokuhamba engenazo iindawo ezifileyo ithintela intsalela ephakathi, iqinisekisa ukusebenza okuzinzileyo kokutywina naphantsi kweemeko eziqhelekileyo zokuma kokuqala, kwaye inokuqhelana neemeko ezahlukeneyo zemibhobho kuquka uxinzelelo oluhle kunye noxinzelelo oluncinci olubi.

Zisetyenziswa kakhulu kumashishini afana neekhemikhali, ukhuseleko lokusingqongileyo, unyango lwamanzi, kunye namayeza: kumashishini eekhemikhali, zisetyenziselwa ukuthutha ulwelo olubolayo olufana ne-hydrochloric acid kunye ne-lye; kunyango lwamanzi amdaka okusingqongileyo, zifanelekile ukukhupha amanzi amdaka kunye nokulinganisa iikhemikhali okubandakanya udaka kunye nokungcola; iinguqulelo zococeko kumashishini ezonyango kunye nokutya ziyahlangabezana neemfuno zolwelo olucocekileyo kunye neenkqubo ezicocekileyo. Zikwasetyenziswa kuthutho oluphakathi lwe-acid kunye nolawulo lwenkqubo kumashishini afana ne-metallurgy kunye nokuveliswa kombane, ngakumbi kwimibhobho yenkqubo eqhubekayo okanye eqhubekayo efuna ukuthembeka okuphezulu kokuvala kunye nokumelana nokugqwala, okwenza ukuba zibe sisisombululo esingabizi kakhulu kwiimeko zokusebenza ezinzima kunye neemeko ezikhethekileyo zemidiya.

I-Jinbin Valves yenza iintlobo ngeentlobo zeevalvu ezinamava eminyaka engama-20 okuvelisa iivalvu. Ukuba unayo nayiphi na imfuneko yeevalvu ezinxulumene noko, nceda ushiye umyalezo apha ngezantsi ukuze unxibelelane nathi.