Ukuhlelwa kunye neempawu eziphathekayo zeevalvu ubukhulu becala ngenxa yeevalvu. Khumbula ii-taboos ezili-14 zokufakela iivalvu
2022-07-16
Ukuhlelwa kunye neempawu eziphathekayo zeevalvu ubukhulu becala ngenxa yeevalvu. Khumbula i-14 taboos yokufakela iivalvu Kukho iintlobo ezininzi zeevalvu. Ngophuculo oluqhubekayo lwenkqubo yezobuchwepheshe kunye nokusebenza kwazo zonke iintlobo zeeseti ezipheleleyo zezixhobo, iintlobo zeevalvu zisakhula, kwaye kukho iindlela ezahlukeneyo zokuhlela. I-valve ezenzekelayo: thembela kwi-medium (ulwelo, igesi, umphunga, njl.) kunye nokukwazi kwayo ukusebenzisa ivalve. Ivalve esebenzayo: Ivalvu esebenza ngesandla, umbane, ihydraulic okanye ipneumatic means. Ukuhlelwa ngokomgaqo wesakhiwo ngoku kuyeyona ndlela ixhaphakileyo yokuhlela yasekhaya nakwamanye amazwe, uhlobo ngalunye lwevalve lunokwahlulwa lube ziindidi ezahlukeneyo zesakhiwo ngokweempawu zesakhiwo. Kukho iintlobo ezininzi zeevalvu. Ngophuculo oluqhubekayo lwenkqubo yezobuchwepheshe kunye nokusebenza kwazo zonke iintlobo zeeseti ezipheleleyo zezixhobo, iintlobo zeevalvu zisakhula, kwaye kukho iindlela ezahlukeneyo zokuhlela. 1. I-Classified ngokuzenzekelayo kwaye iqhube i-valve ye-Automatic: uthembele kwi-medium (ulwelo, igesi, i-steam, njl.) kunye nokukwazi kwayo ukusebenzisa i-valve. Njengevalve yokhuseleko, ivalve yokukhangela, ivalve yokunciphisa uxinzelelo, ivalufa yomoya, ivalufa yokunqunyulwa kwengxakeko, ivalve yokulawula uxinzelelo, ivalve yokulawula ubushushu, njl njl. , i-hydraulic okanye i-pneumatic means. Njengevalve yesango, ivalve yeglowubhu, ivalve yeglowubhu, ivalve yebhabhathane, ivalve yebhola, ivalve yeplagi, ivalve yediaphragm, ivalve yokulawula ifilimu yepneumatic, ivalve yokulawula ipiston yomoya, njl. njl. jonga iSahluko sesi-3 ngenkcazo yobungakanani begama) Ivalve encinci yedayamitha: ubungakanani obuqhelekileyo ≤DN40 ivalve. Ivalve yedayamitha ephakathi: ubungakanani obuqhelekileyo DN50 ~ DN300 ivelufa. Ivalve enkulu yedayamitha: ubukhulu begama DN350 ~ DN1200 ivalve. Ivalve yedayamitha enkulu: ubungakanani obuqhelekileyo ≥DN1400 ivalve. B. Ukuhlelwa ngoxinzelelo lwegama (jonga iSahluko sesi-3 ngenkcazo yemilinganiselo yegama) Ivalve yokufunxa: ivelufa enoxinzelelo lokusebenza ngaphantsi koxinzelelo oluqhelekileyo lwe-atmospheric. Ivalve yoxinzelelo oluphantsi: uxinzelelo lwegama PN≤16 valve. Ivalve yoxinzelelo oluphakathi: uxinzelelo lwegama PN25 ~ 63 valve. Ivalve yoxinzelelo oluphezulu: uxinzelelo lwegama PN100 ~ 800 valve. Ivalve yoxinzelelo oluphezulu: uxinzelelo lwegama PN≥1000 valve. C, ngokohlelo oluphakathi lobushushu obusebenzayo ivelufa yobushushu obuphezulu: T> 425℃ ivalve. Ivalve yobushushu obuphakathi: 120℃ Ivalve yobushushu obuqhelekileyo: -29℃≤ T ≤120℃ ivalve. Ivalve yobushushu obuphantsi: -101℃≤ T ** Ivalve yobushushu: T