{"id":22769,"date":"2025-06-30T14:40:06","date_gmt":"2025-06-30T06:40:06","guid":{"rendered":"https:\/\/kingdapump.com\/?p=22769"},"modified":"2025-07-10T09:59:04","modified_gmt":"2025-07-10T01:59:04","slug":"cabeca-da-bomba","status":"publish","type":"post","link":"https:\/\/kingdapump.com\/pt\/pump-head\/","title":{"rendered":"Explica\u00e7\u00e3o da cabe\u00e7a da bomba: c\u00e1lculo, f\u00f3rmula, curvas de desempenho"},"content":{"rendered":"<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-Head-Banner.jpg\" alt=\"O que \u00e9 bomba de press\u00e3o\" class=\"wp-image-22775\" srcset=\"https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-Head-Banner.jpg 1920w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-Head-Banner-300x169.jpg 300w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-Head-Banner-1024x576.jpg 1024w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-Head-Banner-768x432.jpg 768w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-Head-Banner-1536x864.jpg 1536w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\">Ao selecionar uma bomba, aprenderemos sobre a altura manom\u00e9trica da bomba. Talvez voc\u00ea esteja confuso com isso, mas n\u00e3o se preocupe, este artigo explicar\u00e1 em detalhes a altura manom\u00e9trica da bomba, como calcul\u00e1-la, os fatores que a influenciam e como selecion\u00e1-la, para que voc\u00ea possa ter uma compreens\u00e3o clara do assunto.<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-51a545eb4d1c4a10800809a32612610a\" id=\"h-what-is-pump-head\" style=\"color:#1f365c;font-size:25px\">O que \u00e9 cabe\u00e7a de bomba?<\/h2>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\">Simplificando, a altura da bomba \u00e9 a altura do l\u00edquido que a bomba extrai da piscina, pressuriza-o e ent\u00e3o o eleva at\u00e9 uma determinada posi\u00e7\u00e3o. <\/p>\n\n\n\n<p style=\"font-size:18px\">A unidade de medida da altura manom\u00e9trica da bomba \u00e9 metros ou p\u00e9s, sendo um par\u00e2metro importante para medir a capacidade de entrega da bomba. Combinado com o <a href=\"https:\/\/kingdapump.com\/pt\/curva-da-bomba\/\">curva da bomba<\/a>, ele pode determinar a vaz\u00e3o que a bomba pode bombear quando a altura da bomba est\u00e1 em uma altura espec\u00edfica.<\/p>\n\n\n\n<p style=\"font-size:18px\">Para entender claramente o cabe\u00e7ote da bomba, voc\u00ea precisa primeiro entender seus componentes. O cabe\u00e7ote da bomba consiste em cabe\u00e7ote de suc\u00e7\u00e3o, cabe\u00e7ote de descarga e cabe\u00e7ote total.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"2560\" height=\"2219\" src=\"https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-head-composition-diagram-total-head-1-scaled.jpg\" alt=\"componentes da cabe\u00e7a da bomba\" class=\"wp-image-22777\" srcset=\"https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-head-composition-diagram-total-head-1-scaled.jpg 2560w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-head-composition-diagram-total-head-1-300x260.jpg 300w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-head-composition-diagram-total-head-1-1024x887.jpg 1024w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-head-composition-diagram-total-head-1-768x666.jpg 768w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-head-composition-diagram-total-head-1-1536x1331.jpg 1536w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-head-composition-diagram-total-head-1-2048x1775.jpg 2048w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/figure>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-6bc62c408d24b5ec9f0af035e2f5a5e1\" id=\"h-suction-head\" style=\"color:#1f365c;font-size:20px\">Cabe\u00e7a de suc\u00e7\u00e3o<\/h3>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\">A altura de suc\u00e7\u00e3o refere-se \u00e0 dist\u00e2ncia vertical da altura entre o n\u00edvel do l\u00edquido na piscina de \u00e1gua e a entrada de suc\u00e7\u00e3o da bomba.<\/p>\n\n\n\n<p style=\"font-size:18px\">Ao calcular, precisamos prestar aten\u00e7\u00e3o que a altura de suc\u00e7\u00e3o tamb\u00e9m precisa considerar a cavita\u00e7\u00e3o e o atrito da tubula\u00e7\u00e3o.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-5bc0e4d9eff2465580914874dc77c8bf\" id=\"h-discharge-head\" style=\"color:#1f365c;font-size:20px\">Cabe\u00e7a de descarga<\/h3>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\">A altura de descarga refere-se \u00e0 dist\u00e2ncia vertical da sa\u00edda da bomba at\u00e9 a altura m\u00e1xima que a bomba pode elevar o l\u00edquido.<\/p>\n\n\n\n<p style=\"font-size:18px\">Assim como a altura de suc\u00e7\u00e3o, isso n\u00e3o se refere apenas \u00e0 altura vertical. Em aplica\u00e7\u00f5es pr\u00e1ticas, tamb\u00e9m precisamos considerar a dist\u00e2ncia horizontal da tubula\u00e7\u00e3o e a perda por atrito da tubula\u00e7\u00e3o.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-1b63d6d488f3780d08a6d07269315d13\" id=\"h-total-head\" style=\"color:#1f365c;font-size:20px\">Cabe\u00e7a total<\/h3>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\">A altura manom\u00e9trica total refere-se \u00e0 soma da altura manom\u00e9trica de suc\u00e7\u00e3o e da altura manom\u00e9trica de descarga. Mas isso n\u00e3o significa que seja a altura manom\u00e9trica total. H\u00e1 outro par\u00e2metro importante, a saber, a perda na tubula\u00e7\u00e3o, que ser\u00e1 explicado em detalhes no conte\u00fado a seguir.<\/p>\n\n\n\n<p style=\"font-size:18px\">Leia o seguinte para que voc\u00ea possa entender melhor os c\u00e1lculos da f\u00f3rmula de carga total.<\/p>\n\n\n\n<div style=\"height:120px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-3778286143f521c42f5991b2d65a620a\" id=\"h-how-to-calculate-pump-head\" style=\"color:#1f365c;font-size:25px\">Como calcular a altura manom\u00e9trica da bomba?<\/h2>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-97e430e519a5ce0bb5cb5143e95df134\" id=\"h-total-pump-head-formula\" style=\"color:#1f365c;font-size:20px\">F\u00f3rmula da altura manom\u00e9trica total da bomba<\/h3>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\"><strong>H=H<sub>d <\/sub>+ H<sub>s<\/sub><\/strong><\/p>\n\n\n\n<p style=\"font-size:16px\">H=Carga Total<\/p>\n\n\n\n<p style=\"font-size:16px\">H<sub>s<\/sub>=Cabe\u00e7a de suc\u00e7\u00e3o<\/p>\n\n\n\n<p style=\"font-size:16px\">H<sub>d<\/sub>=Cabe\u00e7a de descarga<\/p>\n\n\n\n<p style=\"font-size:16px\">(A f\u00f3rmula da cabe\u00e7a total s\u00f3 se aplica a casos simples.)<\/p>\n\n\n\n<p style=\"font-size:18px\">Quando o n\u00edvel do l\u00edquido est\u00e1 acima da entrada da bomba, a bomba est\u00e1 em suc\u00e7\u00e3o de press\u00e3o positiva, portanto, a altura de suc\u00e7\u00e3o \u00e9 positiva. Por outro lado, a bomba est\u00e1 em suc\u00e7\u00e3o de press\u00e3o negativa, e a altura de suc\u00e7\u00e3o \u00e9 negativa. (consulte a figura abaixo)<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1000\" height=\"965\" src=\"https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-head-composition-diagram-total-head-2.jpg\" alt=\"O n\u00edvel do l\u00edquido est\u00e1 abaixo da sa\u00edda\" class=\"wp-image-22778\" srcset=\"https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-head-composition-diagram-total-head-2.jpg 1000w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-head-composition-diagram-total-head-2-300x290.jpg 300w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-head-composition-diagram-total-head-2-768x741.jpg 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-f7c8e1920d03fe7289fcee78db309d65\" id=\"h-notes-on-pump-head-calculation-static-pressure\" style=\"color:#1f365c;font-size:20px\">Notas sobre o c\u00e1lculo da altura manom\u00e9trica da bomba: press\u00e3o est\u00e1tica<\/h3>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\">Ao calcular a altura manom\u00e9trica total da bomba, precisamos prestar aten\u00e7\u00e3o a uma quest\u00e3o: a dist\u00e2ncia vertical entre o n\u00edvel do l\u00edquido e a entrada da bomba.<\/p>\n\n\n\n<p style=\"font-size:18px\">Quando o n\u00edvel do l\u00edquido est\u00e1 acima da entrada da bomba, o l\u00edquido fornece press\u00e3o est\u00e1tica \u00e0 bomba. Portanto, podemos entender que quanto maior a dist\u00e2ncia vertical do n\u00edvel do l\u00edquido acima da entrada da bomba, maior a press\u00e3o est\u00e1tica que ele fornece e mais alto a bomba pode elevar o l\u00edquido (observa\u00e7\u00e3o: considere tamb\u00e9m as perdas na tubula\u00e7\u00e3o).<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"861\" src=\"https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/pump-head-compare.jpg\" alt=\"comparar\" class=\"wp-image-22776\" srcset=\"https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/pump-head-compare.jpg 1920w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/pump-head-compare-300x135.jpg 300w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/pump-head-compare-1024x459.jpg 1024w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/pump-head-compare-768x344.jpg 768w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/pump-head-compare-1536x689.jpg 1536w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure>\n\n\n\n<div style=\"height:120px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-e3eff7089636da8cad5fbd112c941a6c\" id=\"h-factors-affecting-pump-head\" style=\"color:#1f365c;font-size:25px\">Fatores que afetam a altura da bomba<\/h2>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\"><strong>1. Perda de pipeline:<\/strong> Quando o fluido passa por um cano ou cotovelo, ele produz perdas como atrito, impacto e v\u00f3rtice.<\/p>\n\n\n\n<p style=\"font-size:18px\"><strong>2. Densidade e viscosidade do fluido:<\/strong> Quando o fluido que transportamos n\u00e3o \u00e9 apenas \u00e1gua limpa, por exemplo, ao utilizar um <a href=\"https:\/\/kingdapump.com\/pt\/bomba-de-polpa\/\">bomba de polpa<\/a> para transportar chorume, lodo, etc., a bomba precisa de uma altura manom\u00e9trica maior para superar essas dificuldades.<\/p>\n\n\n\n<p style=\"font-size:18px\"><strong>3. Taxa de fluxo:<\/strong> Em termos gerais, a vaz\u00e3o de uma bomba \u00e9 inversamente proporcional \u00e0 altura manom\u00e9trica, ou seja, quando a vaz\u00e3o aumenta, a altura manom\u00e9trica da bomba diminui e, inversamente, quando a vaz\u00e3o diminui, a altura manom\u00e9trica aumenta.<\/p>\n\n\n\n<p style=\"font-size:18px\">Claro, \u00e0s vezes a rela\u00e7\u00e3o n\u00e3o \u00e9 inversamente proporcional. Leia o conte\u00fado a seguir para saber mais sobre a curva de desempenho da bomba.<\/p>\n\n\n\n<div style=\"height:120px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-c8bb7a4adbe72c2342c6a7f8f1fd4104\" id=\"h-how-to-read-and-use-pump-performance-curves-for-proper-selection\" style=\"color:#1f365c;font-size:25px\">Como ler e usar curvas de desempenho da bomba para uma sele\u00e7\u00e3o adequada?<\/h2>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-a3f077219e0ef61864ec569f4ac8da1d\" id=\"h-how-to-read-a-pump-curve\" style=\"color:#1f365c;font-size:20px\">Como ler uma curva de bomba?<\/h3>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\">Antes de ler uma curva de desempenho de uma bomba, voc\u00ea deve primeiro entender as defini\u00e7\u00f5es dos valores na curva.<\/p>\n\n\n\n<p style=\"font-size:18px\">Por exemplo, a curva de desempenho da bomba do <a href=\"https:\/\/kingdapump.com\/pt\/bomba-de-polpa\/bomba-de-polpa-horizontal\/bomba-de-polpa-para-servico-pesado-ksh\/\">M150KSH<\/a> mostrado na figura.<\/p>\n\n\n\n<p style=\"font-size:18px\"><strong>Taxa de fluxo:<\/strong> O eixo X \u00e9 a vaz\u00e3o da bomba, em m<sup>3 <\/sup>\/h, que representa a vaz\u00e3o que a bomba pode fornecer.<\/p>\n\n\n\n<p style=\"font-size:18px\"><strong>Cabe\u00e7a: <\/strong>O eixo Y \u00e9 a altura da bomba, medida em metros, que representa a altura que a bomba pode elevar o fluido.<\/p>\n\n\n\n<p style=\"font-size:18px\"><strong>Efici\u00eancia: <\/strong>A efici\u00eancia \u00e9 expressa em %. Quanto maior o valor, maior a efici\u00eancia da bomba e melhor o seu desempenho.<\/p>\n\n\n\n<p style=\"font-size:16px\"><em><a href=\"https:\/\/kingdapump.com\/pt\/curva-da-bomba\/\">Saiba mais: Como ler uma curva de bomba? F\u00f3rmula, sele\u00e7\u00e3o de bomba e muito mais<\/a><\/em><\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1057\" src=\"https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-performance-curves.jpg\" alt=\"Curvas de desempenho da bomba\" class=\"wp-image-22779\" srcset=\"https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-performance-curves.jpg 1000w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-performance-curves-284x300.jpg 284w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-performance-curves-969x1024.jpg 969w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-performance-curves-768x812.jpg 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-05b77d788398d15866d74417f8fe1cad\" id=\"h-how-to-select-a-pump-from-curve\" style=\"color:#1f365c;font-size:20px\">Como selecionar uma bomba da Curve?<\/h3>\n\n\n\n<p style=\"font-size:18px\"><strong>Fa\u00e7a uma sele\u00e7\u00e3o b\u00e1sica em 3 passos!<\/strong><\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\"><strong>1. Determine os requisitos do seu trabalho<\/strong><\/p>\n\n\n\n<p style=\"font-size:18px\">Por exemplo, voc\u00ea precisa de uma altura de bomba de 50 m e uma vaz\u00e3o de 600 m<sup>3 <\/sup>\/h.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\"><strong>2. Encontre o ponto de opera\u00e7\u00e3o correto da bomba<\/strong><\/p>\n\n\n\n<p style=\"font-size:18px\">Ponto de intersec\u00e7\u00e3o: Encontre o ponto de intersec\u00e7\u00e3o do eixo X (600m3\/h) e do eixo Y (50m) no gr\u00e1fico e veja em qual curva ele est\u00e1.<\/p>\n\n\n\n<p style=\"font-size:18px\">Velocidade de rota\u00e7\u00e3o: Por exemplo, se o ponto A estiver pr\u00f3ximo da curva de 1140 r\/min, significa que este modelo pode ser selecionado.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\"><strong>3. Verifique a efici\u00eancia e o NPSH<\/strong><\/p>\n\n\n\n<p style=\"font-size:18px\"><strong>Efici\u00eancia:<\/strong> O ponto A fica pr\u00f3ximo da curva de efici\u00eancia 52%, indicando que a efici\u00eancia da bomba \u00e9 52%.<\/p>\n\n\n\n<p style=\"font-size:18px\"><strong>NPSH:<\/strong> NPSHr (altura de suc\u00e7\u00e3o l\u00edquida positiva necess\u00e1ria) \u00e9 de cerca de 8 m no ponto A, ent\u00e3o o NPSHa (altura de suc\u00e7\u00e3o l\u00edquida positiva dispon\u00edvel) da bomba deve ser maior que 8 m para garantir a press\u00e3o m\u00ednima de entrada da bomba, caso contr\u00e1rio, pode ocorrer cavita\u00e7\u00e3o.<\/p>\n\n\n\n<p style=\"font-size:16px\"><a href=\"https:\/\/kingdapump.com\/pt\/o-que-e-cavitacao-de-bomba\/\"><em>Saiba mais: O que \u00e9 cavita\u00e7\u00e3o da bomba? Dicas para detect\u00e1-la e preveni-la<\/em><\/a><\/p>\n\n\n\n<p style=\"font-size:18px\"><strong>Observa\u00e7\u00e3o:<\/strong> Esta etapa \u00e9 uma sele\u00e7\u00e3o simples. Na aplica\u00e7\u00e3o real, a densidade, a viscosidade e as condi\u00e7\u00f5es de trabalho do fluido no local tamb\u00e9m devem ser consideradas. Se necess\u00e1rio, entre em contato com o fabricante da bomba para fazer a sele\u00e7\u00e3o.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:71% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"207\" src=\"https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-head-contact.jpg\" alt=\"contato\" class=\"wp-image-22807 size-full\" srcset=\"https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-head-contact.jpg 800w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-head-contact-300x78.jpg 300w, https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-head-contact-768x199.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color has-medium-font-size has-custom-font-size wp-element-button\" href=\"https:\/\/kingdapump.com\/pt\/contato-kingda\/\" style=\"background-color:#1f365c\">Mais perguntas<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\">Ou entre em contato conosco atrav\u00e9s de <a href=\"http:\/\/wa.me\/message\/CYA2SNBTFLXWM1\">Whatsapp: +86 186 3393 5649<\/a><\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-8d7a58480c468035814cb7a5c21102f7\" id=\"h-head-and-pressure\" style=\"color:#1f365c;font-size:25px\">Cabe\u00e7a e Press\u00e3o<\/h2>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\">Cabe\u00e7a e press\u00e3o s\u00e3o dois conceitos completamente diferentes, mas est\u00e3o intimamente relacionados entre si.<\/p>\n\n\n\n<p style=\"font-size:18px\">A altura manom\u00e9trica da bomba \u00e9 a altura em que a bomba consegue elevar o fluido, o que n\u00e3o tem rela\u00e7\u00e3o com a densidade do fluido. A press\u00e3o \u00e9 a press\u00e3o \u00e0 qual o fluido \u00e9 submetido na bomba e na tubula\u00e7\u00e3o, que est\u00e1 relacionada \u00e0 densidade do fluido.<\/p>\n\n\n\n<p style=\"font-size:18px\">Por exemplo, h\u00e1 uma bomba com uma altura manom\u00e9trica de 50 m. Se usarmos essa bomba para transportar \u00e1gua limpa e polpa, a press\u00e3o do fluido ser\u00e1 maior porque a densidade da polpa \u00e9 alta, mas a altura manom\u00e9trica dos dois fluidos n\u00e3o ser\u00e1 afetada e ambos ter\u00e3o 50 m.<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-2afbbf4945edcab5ea500a039a910e03\" id=\"h-faq\" style=\"color:#1f365c;font-size:25px\">Perguntas frequentes<\/h2>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-alpha-channel-opacity has-background is-style-wide\" style=\"background-color:#1f365c;color:#1f365c\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-24f90897207a5b9da65ccbe364ee045d\" id=\"h-rated-head-and-maximum-head\" style=\"color:#1f365c;font-size:20px\">Altura nominal e altura manom\u00e9trica m\u00e1xima<\/h3>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\">A altura manom\u00e9trica nominal \u00e9 a altura manom\u00e9trica da bomba quando ela atinge seu ponto de efici\u00eancia ideal. Nesse momento, a bomba apresenta a melhor efici\u00eancia, a opera\u00e7\u00e3o mais est\u00e1vel e a vida \u00fatil mais longa.<\/p>\n\n\n\n<p style=\"font-size:18px\">A altura manom\u00e9trica m\u00e1xima \u00e9 a altura manom\u00e9trica com vaz\u00e3o 0, tamb\u00e9m conhecida como altura manom\u00e9trica de fechamento. Este \u00e9 apenas um valor limite de altura manom\u00e9trica. Em condi\u00e7\u00f5es reais de opera\u00e7\u00e3o, a altura manom\u00e9trica da bomba n\u00e3o deve exceder 110%-120% da altura manom\u00e9trica nominal, caso contr\u00e1rio, a bomba ficar\u00e1 inst\u00e1vel durante a opera\u00e7\u00e3o, o que reduzir\u00e1 sua vida \u00fatil.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-alpha-channel-opacity has-background is-style-wide\" style=\"background-color:#1f365c;color:#1f365c\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-e715c635e26e1a010b4ab06fa20fdfd9\" id=\"h-what-is-head-range-in-water-pump\" style=\"color:#1f365c;font-size:20px\">O que \u00e9 a altura manom\u00e9trica de uma bomba d&#039;\u00e1gua?<\/h3>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\">A faixa de altura manom\u00e9trica \u00e9 o intervalo entre a altura manom\u00e9trica m\u00ednima e m\u00e1xima que a bomba pode fornecer durante o funcionamento.<\/p>\n\n\n\n<p style=\"font-size:18px\">Em termos simples, \u00e9 a diferen\u00e7a vertical entre as alturas m\u00ednima e m\u00e1xima que a bomba consegue elevar a \u00e1gua. Tamb\u00e9m pode ser entendida como a amplitude de energia que a bomba consegue fornecer ap\u00f3s superar o atrito e a gravidade da \u00e1gua.<\/p>\n\n\n\n<p style=\"font-size:18px\">A faixa de altura manom\u00e9trica \u00e9 geralmente expressa em m. Por exemplo, a faixa de altura manom\u00e9trica \u00e9 de 5 a 35 m. A faixa de altura manom\u00e9trica pode ajudar voc\u00ea a escolher o modelo adequado ao selecionar uma bomba e \u00e9 um par\u00e2metro importante para a sele\u00e7\u00e3o da bomba.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-alpha-channel-opacity has-background is-style-wide\" style=\"background-color:#1f365c;color:#1f365c\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-383e1189333f5daa900452fac4426986\" id=\"h-which-pump-is-suitable-for-small-discharge-and-high-head\" style=\"color:#1f365c;font-size:20px\">Qual bomba \u00e9 adequada para baixa vaz\u00e3o e alta altura manom\u00e9trica?<\/h3>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\">1. Bomba de pist\u00e3o\/bomba de \u00eambolo: A bomba de pist\u00e3o \u00e9 uma bomba de deslocamento positivo. Ela depende do movimento do pist\u00e3o na bomba para comprimir a \u00e1gua e descarreg\u00e1-la. A press\u00e3o \u00e9 muito alta e a vaz\u00e3o \u00e9 muito pequena. \u00c9 adequada para condi\u00e7\u00f5es de trabalho de precis\u00e3o e alta press\u00e3o.<\/p>\n\n\n\n<p style=\"font-size:18px\">2. Bomba centr\u00edfuga multiest\u00e1gio: A bomba centr\u00edfuga multiest\u00e1gio possui m\u00faltiplos impulsores, cada um dos quais pode fornecer uma parte da altura manom\u00e9trica. A altura manom\u00e9trica \u00e9 muito alta e adequada para condi\u00e7\u00f5es de trabalho de vaz\u00e3o m\u00e9dia e baixa, bem como de alta press\u00e3o e alta altura manom\u00e9trica.<\/p>\n\n\n\n<p style=\"font-size:18px\">3. Bomba de diafragma: A bomba de diafragma tamb\u00e9m \u00e9 uma bomba de deslocamento positivo. Ela depende do movimento alternativo do diafragma para movimentar a \u00e1gua. Possui press\u00e3o mais alta e \u00e9 adequada para condi\u00e7\u00f5es de vaz\u00e3o m\u00e9dia e baixa.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-alpha-channel-opacity has-background is-style-wide\" style=\"background-color:#1f365c;color:#1f365c\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-aba2153a2f62921a6f984dd1ad249016\" id=\"h-what-is-static-head-of-pump\" style=\"color:#1f365c;font-size:20px\">O que \u00e9 altura manom\u00e9trica est\u00e1tica da bomba?<\/h3>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\">A altura est\u00e1tica se refere \u00e0 diferen\u00e7a de altura vertical entre a porta de suc\u00e7\u00e3o da fonte de \u00e1gua e a porta de descarga da bomba d&#039;\u00e1gua, sem considerar fatores como o atrito da tubula\u00e7\u00e3o.<\/p>\n\n\n\n<p style=\"font-size:18px\">A altura manom\u00e9trica est\u00e1tica \u00e9 geralmente usada para determinar preliminarmente a altura manom\u00e9trica exigida pela bomba.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-alpha-channel-opacity has-background is-style-wide\" style=\"background-color:#1f365c;color:#1f365c\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-46e7175321dd3cd15d3fa14eaf63faea\" id=\"h-what-is-pump-shut-off-head\" style=\"color:#1f365c;font-size:20px\">O que \u00e9 o desligamento da bomba?<\/h3>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\">Como o nome sugere, a altura manom\u00e9trica de fechamento \u00e9 a altura manom\u00e9trica da bomba quando a sa\u00edda da bomba est\u00e1 fechada. Nesse momento, a vaz\u00e3o da bomba \u00e9 0 e a press\u00e3o da bomba \u00e9 m\u00e1xima. Tamb\u00e9m pode ser entendida como a altura manom\u00e9trica m\u00e1xima ou altura manom\u00e9trica morta da bomba. No entanto, a altura manom\u00e9trica de fechamento \u00e9 apenas um dado te\u00f3rico usado para determinar a press\u00e3o m\u00e1xima que a bomba pode suportar.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-alpha-channel-opacity has-background is-style-wide\" style=\"background-color:#1f365c;color:#1f365c\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-4dc697de54eacdd18844ef090bb53343\" id=\"h-pump-capacity-vs-head\" style=\"color:#1f365c;font-size:20px\">Capacidade da bomba vs. altura manom\u00e9trica<\/h3>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p style=\"font-size:18px\">A capacidade da bomba e a altura manom\u00e9trica da bomba s\u00e3o inversamente proporcionais na curva da bomba. Quanto maior a capacidade da bomba (vaz\u00e3o), menor a altura manom\u00e9trica. Por outro lado, quando menor a capacidade da bomba (vaz\u00e3o), maior a altura manom\u00e9trica.<\/p>\n\n\n\n<p style=\"font-size:18px\">A unidade de capacidade da bomba \u00e9 geralmente expressa em m\u00b3\/h, e a altura manom\u00e9trica \u00e9 expressa em m.<\/p>\n\n\n\n<div style=\"height:200px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>","protected":false},"excerpt":{"rendered":"<p>When we select a pump, we will learn about the pump head. Maybe you will be confused about this, don\u2019t worry, this article will explain to you in detail the pump head, how to calculate, the influencing factors and how to select, so that you can have a clear understanding of it. What Is Pump [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":22775,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30,41],"tags":[],"class_list":["post-22769","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-pump-knowledge"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.8 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Pump Head Explained: Calculation, Formula, Performance Curves - Kingda Pump<\/title>\n<meta name=\"description\" content=\"Pump head refers to the height a pump lifts and pressurizes liquid from a pool, moving it to a set position for efficient fluid transfer.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kingdapump.com\/pt\/cabeca-da-bomba\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pump Head Explained: Calculation, Formula, Performance Curves\" \/>\n<meta property=\"og:description\" content=\"Pump head refers to the height a pump lifts and pressurizes liquid from a pool, moving it to a set position for efficient fluid transfer.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/kingdapump.com\/pt\/cabeca-da-bomba\/\" \/>\n<meta property=\"og:site_name\" content=\"Kingda Pump\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-30T06:40:06+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-10T01:59:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/kingdapump.com\/wp-content\/uploads\/2025\/03\/Pump-Head-Banner.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1080\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Kingda\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Kingda\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"9 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/kingdapump.com\\\/pump-head\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/kingdapump.com\\\/pump-head\\\/\"},\"author\":{\"name\":\"Kingda\",\"@id\":\"https:\\\/\\\/kingdapump.com\\\/#\\\/schema\\\/person\\\/a355650a2ea35277ae3800891889153b\"},\"headline\":\"Pump Head Explained: Calculation, Formula, Performance Curves\",\"datePublished\":\"2025-06-30T06:40:06+00:00\",\"dateModified\":\"2025-07-10T01:59:04+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/kingdapump.com\\\/pump-head\\\/\"},\"wordCount\":1583,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/kingdapump.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/kingdapump.com\\\/pump-head\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/kingdapump.com\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/Pump-Head-Banner.jpg\",\"articleSection\":[\"Blog\",\"Pump Knowledge\"],\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/kingdapump.com\\\/pump-head\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/kingdapump.com\\\/pump-head\\\/\",\"url\":\"https:\\\/\\\/kingdapump.com\\\/pump-head\\\/\",\"name\":\"Pump Head Explained: Calculation, Formula, Performance Curves - 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