Quais s\u00e3o os problemas relacionados \u00e0 manuten\u00e7\u00e3o da v\u00e1lvula esfera pneum\u00e1tica antes da opera\u00e7\u00e3o? E quais s\u00e3o as solu\u00e7\u00f5es? Vamos dar uma olhada!<\/p>\n\n\n\n\n\n
Ap\u00f3s a inje\u00e7\u00e3o de graxa, verifique se a porta esf\u00e9rica da v\u00e1lvula est\u00e1 alinhada com o plano da cavidade interna da sede da v\u00e1lvula. Se houver alguma diferen\u00e7a, ajuste o parafuso de limite de abertura no atuador para garantir que a v\u00e1lvula esteja totalmente aberta. Caso contr\u00e1rio, n\u00e3o ser\u00e1 poss\u00edvel avaliar se a v\u00e1lvula est\u00e1 totalmente aberta depois que a v\u00e1lvula esf\u00e9rica pneum\u00e1tica for montada.<\/p>\n\n\n\n
1. Quando o eixo da v\u00e1lvula (haste) \u00e9 lubrificado, a press\u00e3o de veda\u00e7\u00e3o no eixo da v\u00e1lvula esf\u00e9rica pneum\u00e1tica (haste) n\u00e3o deve exceder 20,68mpa. Uma vez excedido, verifique se a pistola de graxa est\u00e1 com defeito e se a v\u00e1lvula de sa\u00edda na sa\u00edda de graxa da pistola de graxa est\u00e1 aberta.<\/p>\n\n\n\n
2. Se n\u00e3o houver falha na pistola de graxa, verifique se o bico de graxa est\u00e1 bloqueado, ou seja, desparafuse lentamente o bico de graxa e instale-o no orif\u00edcio de sa\u00edda de graxa da pistola de graxa. Observe se o bocal de graxa pode descarregar graxa injetando graxa no bocal de graxa. Se n\u00e3o descarregar graxa, indica que a v\u00e1lvula unidirecional no bocal de graxa est\u00e1 com defeito e o bocal de graxa deve ser substitu\u00eddo.<\/p>\n\n\n\n
Se o bico de inje\u00e7\u00e3o de graxa puder descarregar graxa, verifique a v\u00e1lvula unidirecional localizada no orif\u00edcio de inje\u00e7\u00e3o de graxa no lado a jusante do bico de inje\u00e7\u00e3o de graxa (geralmente, esta v\u00e1lvula unidirecional \u00e9 instalada no orif\u00edcio de inje\u00e7\u00e3o de graxa da v\u00e1lvula importada) e aparafuse retire-o com ferramentas especiais para inspe\u00e7\u00e3o. Qualquer bloqueio, como correia de mat\u00e9ria-prima, deve ser removido e a v\u00e1lvula deve ser substitu\u00edda se houver falha grave. Se ainda n\u00e3o for poss\u00edvel injetar graxa, o problema dever\u00e1 ser relatado ao engenheiro profissional e ao supervisor local para solu\u00e7\u00e3o no local pelo fabricante.<\/p>\n\n\n\n
Ap\u00f3s a inje\u00e7\u00e3o de graxa da v\u00e1lvula de esfera pneum\u00e1tica, o bloqueio pode ocorrer no tubo de inje\u00e7\u00e3o de graxa de veda\u00e7\u00e3o da sede da v\u00e1lvula, resultando em descarga irregular ou nenhuma descarga de graxa do orif\u00edcio de inje\u00e7\u00e3o de graxa da sede da v\u00e1lvula. Esta situa\u00e7\u00e3o requer um giro de 15\u00b0 a 25\u00b0 a partir da posi\u00e7\u00e3o totalmente aberta. Em seguida, observe o orif\u00edcio de sa\u00edda de graxa da sede da v\u00e1lvula, drene-o suavemente com uma ferramenta macia e continue observando a inje\u00e7\u00e3o de graxa.<\/p>\n\n\n\n
Aten\u00e7\u00e3o especial deve ser dada ao fato de que a graxa n\u00e3o deve ser injetada durante a rota\u00e7\u00e3o da v\u00e1lvula esfera pneum\u00e1tica para evitar danos \u00e0 veda\u00e7\u00e3o da sede. Geralmente, h\u00e1 4 bicos de inje\u00e7\u00e3o de graxa em cada lado da v\u00e1lvula esf\u00e9rica, enquanto 2 s\u00e3o relativamente irregulares.<\/p>\n\n\n\n
Nossa empresa se concentra na fabrica\u00e7\u00e3o de v\u00e1lvula gaveta em cunha, v\u00e1lvula gaveta para dutos, v\u00e1lvula esf\u00e9rica flutuante, v\u00e1lvula esf\u00e9rica fixa, v\u00e1lvula esf\u00e9rica montada na parte superior, v\u00e1lvula de parada, v\u00e1lvula de reten\u00e7\u00e3o de giro, v\u00e1lvula de reten\u00e7\u00e3o de placa dupla e v\u00e1lvula forjada. Se voc\u00ea tiver alguma necessidade, n\u00e3o hesite em nos consultar.<\/p>\n\n\n\n\n
Quais s\u00e3o os problemas relacionados com a manuten\u00e7\u00e3o da v\u00e1lvula de esfera pneum\u00e1tica antes do funcionamento? E quais s\u00e3o as solu\u00e7\u00f5es? Vamos dar uma olhada ... Ler mais<\/a><\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1927],"tags":[2204,1841,2180],"class_list":["post-16731","post","type-post","status-publish","format-standard","hentry","category-ball-valve","tag-ball-valves","tag-how-to-open-a-stuck-ball-valve","tag-pneumatic-ball-valve","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":false,"author_info":{"display_name":"Jerry","author_link":"https:\/\/zecovalve.com\/pt\/author\/jerry"},"comment_info":0,"category_info":[{"term_id":1927,"name":"Ball Valve","slug":"ball-valve","term_group":0,"term_taxonomy_id":1927,"taxonomy":"category","description":"Ball Valve Description","parent":0,"count":82,"filter":"raw","cat_ID":1927,"category_count":82,"category_description":"Ball Valve Description","cat_name":"Ball Valve","category_nicename":"ball-valve","category_parent":0}],"tag_info":[{"term_id":2204,"name":"Ball Valves","slug":"ball-valves","term_group":0,"term_taxonomy_id":2204,"taxonomy":"post_tag","description":"","parent":0,"count":38,"filter":"raw"},{"term_id":1841,"name":"How to Open a Stuck Ball Valve","slug":"how-to-open-a-stuck-ball-valve","term_group":0,"term_taxonomy_id":1841,"taxonomy":"post_tag","description":"\r\n\r\n\r\n\r\nHOW TO OPEN A STUCK BALL VALVE<\/strong><\/a>\r\n\r\n\r\n\r\n\r\nWhat Causes Stuck Ball Valve<\/a><\/mark><\/strong>?<\/h2>\r\n\r\n\r\n\r\n\r\nOne of the most common types of ball valve failures involves a buildup of dirt and sediment within the valve, making it difficult to open and close. The use of solvent cement glue can also clog up the ball, causing it to stick to the inside of the valve and resist turning. If this happens, you\u2019ll want to take the valve apart and clean out any grime you see.\r\n\r\n\r\n\r\n\r\n\r\nAnother frequent ball valve failure occurs when the elastic used to seal the valve (often in the form of an O-ring) gets worn down over time due to liquid or gas getting pushed through it. Since this is a natural symptom of use, you\u2019ll want to swap out the elastic when you notice cracks or leakage. Turning down the intensity of liquid flowing through the valve can also help extend the lifespan of the O-ring.\r\n\r\n\r\n\r\n\r\n\r\nAs the elastic starts to go, so too does the inner packing of the valve stem. Any scratching or damage to the valve stem requires someone to either replace the stem or the whole valve before the whole thing falls apart.\r\n\r\n\r\n\r\n\r\n\r\nMake sure to look for leak points at the nuts holding the bolts in as well. This indicates that the nuts are too loose or that the end connector needs realignment. Damage to O-rings around the nuts can also prove a culprit of these leaks.\r\n\r\n\r\n\r\n\r\n
How to Open A Stuck Ball Valve?<\/h2>\r\n\r\n\r\n\r\n\r\nBall valves are commonly used valves for main water and various branch shutoffs. This valve functions as an ON\/OFF valve which means that the valve should be either completely open allowing full flow, or completely closed, stopping the entire water flow. Occasionally, it may be necessary to loosen a ball valve because it is stuck or tight, thereby creating an obstruction to fluid flow. If a ball valve won\u2019t open, perform the following steps to rectify the issue:\r\n\r\n\r\n\r\n\r\n
\r\n \t