{"id":854,"date":"2024-09-26T15:37:26","date_gmt":"2024-09-26T07:37:26","guid":{"rendered":"https:\/\/www.darko-tech.com\/?post_type=products&p=854"},"modified":"2025-03-10T16:54:11","modified_gmt":"2025-03-10T08:54:11","slug":"valvula-pneumatica-de-abertura-e-fecho","status":"publish","type":"products","link":"https:\/\/www.darko-tech.com\/pt\/produtos\/valvula-pneumatica-de-abertura-e-fecho\/","title":{"rendered":"V\u00e1lvula pneum\u00e1tica de abertura e fecho"},"content":{"rendered":"

A v\u00e1lvula pneum\u00e1tica de abertura e fecho\u00a0<\/strong>\u00a0\u00e9 acionado por um cilindro para realizar a sua fun\u00e7\u00e3o de comuta\u00e7\u00e3o.<\/p>\n

 <\/p>\n

\"\"<\/p>\n

 <\/p>\n

Em termos de estrutura, n\u00e3o existe uma diferen\u00e7a significativa entre o corpo da v\u00e1lvula de uma v\u00e1lvula pneum\u00e1tica on-off e o corpo de uma v\u00e1lvula el\u00e9ctrica de controlo de comuta\u00e7\u00e3o. A principal diferen\u00e7a reside nas for\u00e7as motrizes que alteram a posi\u00e7\u00e3o da v\u00e1lvula.<\/p>\n

 <\/p>\n

A v\u00e1lvula pneum\u00e1tica on-off \u00e9 acionada pelo ar de controlo no circuito de ar, que actua no cilindro de funcionamento da v\u00e1lvula. Esta press\u00e3o empurra o pist\u00e3o para se mover, accionando o cursor para alterar a posi\u00e7\u00e3o da v\u00e1lvula.<\/p>\n

 <\/p>\n

Em contrapartida, a comporta el\u00e9ctrica de controlo do fluxo gera uma suc\u00e7\u00e3o electromagn\u00e9tica atrav\u00e9s de uma bobina em espiral, que acciona o cursor para alterar a posi\u00e7\u00e3o da v\u00e1lvula do corpo da v\u00e1lvula.<\/p>\n

 <\/p>\n

\"\"<\/p>\n

 <\/p>\n

A porta de controlo do interrutor pneum\u00e1tico muda a sua posi\u00e7\u00e3o controlando o ar no seu cilindro para criar uma certa press\u00e3o. Esta press\u00e3o empurra ent\u00e3o o pist\u00e3o e o cursor para alterar a posi\u00e7\u00e3o da v\u00e1lvula. Como resultado, a velocidade de controlo real \u00e9 relativamente lenta.<\/p>\n

 <\/p>\n

Em contrapartida, o comporta el\u00e9ctrica de controlo de fluxo<\/a> gera for\u00e7a de suc\u00e7\u00e3o a uma velocidade relativamente r\u00e1pida. Por conseguinte, do ponto de vista da velocidade de trabalho, a porta de controlo do interrutor el\u00e9trico funciona mais rapidamente.<\/p>\n

 <\/p>\n

\"\"<\/p>\n

 <\/p>\n

Al\u00e9m disso, o sinal de controlo ligado \u00e0 porta de comando do interrutor pneum\u00e1tico \u00e9 um sinal de press\u00e3o. Este sinal tem de ser ligado a um tubo e requer um grande volume.<\/p>\n

 <\/p>\n

Em contrapartida, o sinal de controlo das v\u00e1lvulas de comuta\u00e7\u00e3o el\u00e9ctrica \u00e9 geralmente um sinal de corrente. Este sinal pode ser ligado por fios e n\u00e3o existe um \u00eambolo de funcionamento. Por conseguinte, o volume da porta de controlo do fluxo el\u00e9trico \u00e9 inferior ao das portas de controlo do interrutor pneum\u00e1tico.<\/p>\n

 <\/p>\n

\"\"<\/p>\n

<\/h2>\n

Especifica\u00e7\u00e3o<\/strong><\/h2>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u00a0<\/b><\/strong>\u00a0\u00a0\u00a0projeto<\/b><\/strong><\/p>\n

Especifica\u00e7\u00e3o<\/b><\/strong><\/td>\n

\u00a0<\/b><\/strong><\/p>\n

U<\/b><\/strong>nit<\/b><\/strong><\/td>\n

B200<\/b><\/strong><\/td>\nB250<\/b><\/strong><\/td>\nB300<\/b><\/strong><\/td>\nB400<\/b><\/strong><\/td>\nB500<\/b><\/strong><\/td>\nB630<\/b><\/strong><\/td>\nB800<\/b><\/strong><\/td>\n<\/tr>\n
Gama de caudais<\/b><\/strong><\/td>\nm\u00b3\/h<\/td>\n40-260<\/td>\n60-360<\/td>\n70-480<\/td>\n90-650<\/td>\n10-820<\/td>\n140-1450<\/td>\n160-1600<\/td>\n<\/tr>\n
C<\/b><\/strong>\u00e1rea de c\u00e1lculo<\/b><\/strong><\/td>\nm\u00b2<\/td>\n0.012<\/td>\n0.014<\/td>\n0.017<\/td>\n0.026<\/td>\n0.032<\/td>\n0.051<\/td>\n0.073<\/td>\n<\/tr>\n
Alimenta\u00e7\u00e3o el\u00e9ctrica<\/b><\/strong><\/td>\nV<\/td>\nAC38050Hz (pode ser determinado de acordo com os requisitos do cliente)<\/td>\n<\/tr>\n
C<\/b><\/strong>orner<\/b><\/strong><\/td>\n\u03b8\u00b0<\/td>\n0\uff5e90<\/td>\n<\/tr>\n
I<\/b><\/strong>sinal de entrada<\/b><\/strong><\/td>\nmA<\/td>\n4\uff5e20<\/td>\n<\/tr>\n
Sinal de retorno<\/b><\/strong><\/td>\nmA<\/td>\n4\uff5e20<\/td>\n<\/tr>\n
B<\/b><\/strong>\u00e1rea de reabilita\u00e7\u00e3o<\/b><\/strong><\/td>\nm\u00b2<\/td>\n0.057<\/td>\n0.064<\/td>\n0.07<\/td>\n0.09<\/td>\n0.13<\/td>\n<\/tr>\n
Consumo de ar<\/b><\/strong><\/td>\nm\u00b3\/min<\/td>\n0.4<\/td>\n0.5<\/td>\n0.6<\/td>\n0.7<\/td>\n<\/tr>\n
Carater\u00edsticas do tr\u00e1fego<\/b><\/strong><\/td>\n<\/td>\nLinha reta ou percentagem igual<\/td>\n<\/tr>\n
A<\/b><\/strong>tempo de a\u00e7\u00e3o<\/b><\/strong><\/td>\n<\/td>\n30s<\/td>\n<\/tr>\n
Temperatura de funcionamento<\/b><\/strong><\/td>\n<\/td>\n\u2264180\u2103<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

\"Interruptor<\/p>\n

Desenho e dados<\/strong><\/h2>\n

\"\"<\/p>\n

\"\"<\/p>\n\n\n\n\n\n\n\n\n
Especifica\u00e7\u00e3o<\/td>\nL<\/td>\nLa<\/td>\nn*L1<\/td>\nL2<\/td>\nL3<\/td>\nL4<\/td>\nL5<\/td>\nn*L6<\/td>\nn*d<\/td>\nH<\/td>\n<\/tr>\n
B250<\/td>\n340<\/td>\n520<\/td>\n1*100<\/td>\n100<\/td>\n72<\/td>\n63<\/td>\n75<\/td>\n4*70<\/td>\n20*\u03c612<\/td>\n320<\/td>\n<\/tr>\n
B300<\/td>\n390<\/td>\n520<\/td>\n2*85<\/td>\n90<\/td>\n72<\/td>\n63<\/td>\n75<\/td>\n4*70<\/td>\n22*\u03c612<\/td>\n320<\/td>\n<\/tr>\n
B400<\/td>\n490<\/td>\n520<\/td>\n2*110<\/td>\n115<\/td>\n72<\/td>\n63<\/td>\n75<\/td>\n4*70<\/td>\n22*\u03c612<\/td>\n320<\/td>\n<\/tr>\n
B500<\/td>\n580<\/td>\n590<\/td>\n4*90<\/td>\n90<\/td>\n90<\/td>\n75<\/td>\n95<\/td>\n3*95<\/td>\n24*\u03c614<\/td>\n370<\/td>\n<\/tr>\n
B630<\/td>\n710<\/td>\n620<\/td>\n4*110<\/td>\n115<\/td>\n65<\/td>\n76<\/td>\n110<\/td>\n3*110<\/td>\n24*\u03c614<\/td>\n410<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"

Uma v\u00e1lvula pneum\u00e1tica on-off \u00e9 um tipo de v\u00e1lvula que utiliza ar comprimido para controlar o fluxo de fluidos ou gases num sistema de tubagem. Funciona de forma bin\u00e1ria, totalmente aberta ou totalmente fechada, permitindo um controlo r\u00e1pido e eficiente do fluxo de material.<\/p>","protected":false},"featured_media":1351,"parent":0,"menu_order":0,"template":"","product":[84],"size":[],"material":[],"class_list":["post-854","products","type-products","status-publish","has-post-thumbnail","hentry","product-high-quality-valves-reliable-solutions-for-fluid-control"],"acf":[],"yoast_head":"\non off valve | cement machine| Darko<\/title>\n<meta name=\"description\" content=\"A pneumatic on-off valve provides fast actuation, allowing for immediate control of flow. 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