{"id":90388,"date":"2026-07-07T07:47:17","date_gmt":"2026-07-06T23:47:17","guid":{"rendered":"https:\/\/www.solar-machinery.com\/how-to-choose-a-deep-well-solar-pump-head-flow-and-voltage.html"},"modified":"2026-08-03T01:55:31","modified_gmt":"2026-08-02T17:55:31","slug":"how-to-choose-a-deep-well-solar-pump-head-flow-and-voltage","status":"publish","type":"post","link":"https:\/\/www.solar-machinery.com\/pt\/how-to-choose-a-deep-well-solar-pump-head-flow-and-voltage.html","title":{"rendered":"Como escolher uma bomba solar para po\u00e7os profundos: explica\u00e7\u00e3o sobre a altura manom\u00e9trica, o caudal e a tens\u00e3o"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><p>Os po\u00e7os profundos e as perfura\u00e7\u00f5es necessitam de uma bomba capaz de extrair \u00e1gua a partir de profundidades significativas, utilizando apenas a energia fornecida pelos pain\u00e9is solares. A escolha do modelo errado pode resultar num caudal fraco, no sobreesfor\u00e7o do motor ou num sistema que fica paralisado quando a luz solar \u00e9 mais fraca. Este guia explica os tr\u00eas valores que determinam tudo \u2014 altura manom\u00e9trica, caudal e tens\u00e3o \u2014 e como os adequar a uma bomba solar para po\u00e7os profundos.<\/p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.solar-machinery.com\/wp-content\/uploads\/2022\/07\/deepwell01.jpg\" alt=\"Deep well DC solar pump for borehole water supply\"\/><\/figure>\n<h2>Passo 1: Calcular a altura manom\u00e9trica total<\/h2>\n<p>A altura manom\u00e9trica \u00e9 a altura total a que a bomba tem de impulsionar a \u00e1gua e \u00e9 o valor mais importante na sele\u00e7\u00e3o de uma bomba para po\u00e7os profundos. Inclui tr\u00eas componentes: a dist\u00e2ncia vertical entre o n\u00edvel da \u00e1gua no interior do po\u00e7o e o solo (n\u00e3o a profundidade do po\u00e7o \u2014 o que importa \u00e9 o n\u00edvel da \u00e1gua), a altura adicional desde o solo at\u00e9 \u00e0 sa\u00edda do seu reservat\u00f3rio de armazenamento e a perda por atrito na tubagem, que aumenta com tubos longos ou estreitos.<\/p>\n<p>Me\u00e7a o n\u00edvel est\u00e1tico da \u00e1gua e pergunte tamb\u00e9m ao perfurador qual \u00e9 o n\u00edvel de rebaixamento \u2014 o n\u00edvel durante o bombeamento. Escolha sempre a bomba tendo em conta o n\u00edvel de bombeamento, mais a altura do dep\u00f3sito e as perdas na tubagem, com alguma margem. Uma bomba escolhida apenas com base na profundidade do po\u00e7o acaba, muitas vezes, por ser demasiado grande ou demasiado pequena.<\/p>\n<h2>Passo 2: Confirme o caudal de que realmente necessita<\/h2>\n<p>O caudal deve ser calculado com base na vossa necessidade di\u00e1ria de \u00e1gua, e n\u00e3o no valor mais elevado indicado num cat\u00e1logo. Somem o consumo di\u00e1rio \u2014 uso dom\u00e9stico, gado, \u00e1rea de irriga\u00e7\u00e3o \u2014 em metros c\u00fabicos por dia e, em seguida, dividam esse valor pelas horas efetivas de insola\u00e7\u00e3o no local. Esse c\u00e1lculo d\u00e1 o caudal que a bomba deve fornecer durante as horas de insola\u00e7\u00e3o.<\/p>\n<p>Lembre-se de que a altura manom\u00e9trica e o caudal est\u00e3o em contraposi\u00e7\u00e3o: a mesma bomba fornece menos caudal quando a altura manom\u00e9trica \u00e9 mais elevada. Verifique a curva de desempenho para a SUA altura manom\u00e9trica e dimensiona um dep\u00f3sito de armazenamento com capacidade para, pelo menos, um dia de consumo, para que o sistema consiga fazer face a per\u00edodos de tempo nublado sem recorrer \u00e0s baterias.<\/p>\n<h2>Passo 3: Adequar a plataforma de tens\u00e3o ao painel solar<\/h2>\n<p>As bombas solares para po\u00e7os profundos funcionam com tens\u00f5es cont\u00ednuas fornecidas por um painel solar atrav\u00e9s de um controlador de bomba. Uma altura manom\u00e9trica mais elevada e um caudal maior exigem uma pot\u00eancia superior e, normalmente, uma tens\u00e3o mais elevada. O painel solar deve fornecer tens\u00e3o suficiente para que o controlador ligue a bomba logo pela manh\u00e3 e pot\u00eancia suficiente para manter o ponto de funcionamento ao longo do dia.<\/p>\n<p>A <a href=\"https:\/\/www.solar-machinery.com\/pt\/wide-voltage-solar-water-pump.html\/\">bomba de \u00e1gua solar com ampla gama de tens\u00f5es<\/a> tolera uma gama mais ampla de tens\u00e3o de entrada, o que \u00e9 \u00fatil em regi\u00f5es com incid\u00eancia solar vari\u00e1vel. Se houver energia da rede ou de um gerador dispon\u00edvel como reserva, um <a href=\"https:\/\/www.solar-machinery.com\/pt\/ac-dc-hybrid-solar-water-pump.html\/\">Bomba h\u00edbrida CA\/CC<\/a> pode continuar a extrair leite \u00e0 noite ou em condi\u00e7\u00f5es meteorol\u00f3gicas adversas.<\/p>\n<h2>Constru\u00e7\u00e3o de bombas: Por que raz\u00e3o os materiais s\u00e3o importantes nos furos de perfura\u00e7\u00e3o<\/h2>\n<ul>\n<li>Os corpos das bombas e os impulsores em a\u00e7o inoxid\u00e1vel resistem \u00e0 corros\u00e3o e ao desgaste causado pela areia \u2014 o que \u00e9 importante para garantir uma longa vida \u00fatil no interior de um furo, tal como acontece com as nossas <a href=\"https:\/\/www.solar-machinery.com\/pt\/stainless-steel-solar-submersible-pump.html\/\">bomba submers\u00edvel solar em a\u00e7o inoxid\u00e1vel<\/a>.<\/li>\n<li>Os motores CC sem escovas evitam a substitui\u00e7\u00e3o das escovas, o que \u00e9 importante porque retirar uma bomba de um po\u00e7o profundo para manuten\u00e7\u00e3o \u00e9 dispendioso, tal como no <a href=\"https:\/\/www.solar-machinery.com\/pt\/brushless-dc-solar-water-pump.html\/\">bomba de \u00e1gua solar de corrente cont\u00ednua sem escovas<\/a>.<\/li>\n<li>No caso de po\u00e7os arenosos ou com elevado teor de s\u00f3lidos, uma bomba de parafuso (rotor helicoidal), como a <a href=\"https:\/\/www.solar-machinery.com\/pt\/dc-screw-solar-water-pump.html\/\">Bomba de \u00e1gua solar com parafuso de corrente cont\u00ednua<\/a> suporta caudais baixos com altura manom\u00e9trica elevada, com boa toler\u00e2ncia.<\/li>\n<li>Antes de encomendar, verifique se o di\u00e2metro exterior da bomba corresponde ao tamanho do revestimento do seu furo.<\/li>\n<\/ul>\n<h2>Lista de verifica\u00e7\u00e3o para a sele\u00e7\u00e3o de bombas solares para po\u00e7os profundos<\/h2>\n<ul>\n<li>Di\u00e2metro interior do revestimento do furo<\/li>\n<li>N\u00edvel est\u00e1tico da \u00e1gua e n\u00edvel da \u00e1gua devido ao bombeamento (rebaixamento)<\/li>\n<li>Altura do reservat\u00f3rio e dist\u00e2ncia at\u00e9 \u00e0 cabe\u00e7a do po\u00e7o, di\u00e2metro e comprimento da tubagem<\/li>\n<li>Necessidade di\u00e1ria de \u00e1gua em metros c\u00fabicos<\/li>\n<li>Horas efetivas de insola\u00e7\u00e3o no local<\/li>\n<li>Disponibilidade de energia de reserva (rede el\u00e9trica ou gerador) \u2014 sim ou n\u00e3o<\/li>\n<\/ul>\n<p>Envie estes seis elementos ao seu fornecedor e obter\u00e1 uma configura\u00e7\u00e3o precisa da bomba, do controlador e do painel, em vez de uma estimativa.<\/p>\n<h2>Perguntas frequentes<\/h2>\n<h3>A profundidade do po\u00e7o \u00e9 igual \u00e0 altura manom\u00e9trica?<\/h3>\n<p>N\u00e3o. A bomba tem de superar o n\u00edvel da \u00e1gua durante o bombeamento, al\u00e9m da altura do reservat\u00f3rio e do atrito na tubagem \u2014 e n\u00e3o a profundidade da perfura\u00e7\u00e3o. Um furo de 100 m com \u00e1gua a 30 m de profundidade representa uma condi\u00e7\u00e3o de funcionamento muito diferente daquela em que a \u00e1gua se encontra a 90 m.<\/p>\n<h3>E se o meu furo for estreito?<\/h3>\n<p>Verifique primeiro o di\u00e2metro exterior da bomba. As bombas solares submers\u00edveis para po\u00e7os profundos s\u00e3o fabricadas com perfis estreitos para tubagens padr\u00e3o, mas o modelo exato deve encaixar na sua tubagem, deixando espa\u00e7o suficiente para a circula\u00e7\u00e3o de ar de arrefecimento.<\/p>\n<h3>Preciso de pilhas para uma bomba de po\u00e7o profundo?<\/h3>\n<p>Normalmente, n\u00e3o. Bombear para um tanque de armazenamento elevado durante o dia \u00e9 mais barato e mais simples do que utilizar baterias. S\u00f3 deve adicionar baterias ou um modelo h\u00edbrido CA\/CC se for necess\u00e1rio bombear \u00e0 noite.<\/p>\n<h2>Solicitar uma configura\u00e7\u00e3o de bomba para po\u00e7os profundos<\/h2>\n<p>A Suntrica fornece <a href=\"https:\/\/www.solar-machinery.com\/pt\/deep-well-dc-solar-pump.html\/\">bombas solares de corrente cont\u00ednua para po\u00e7os profundos<\/a> e concluir <a href=\"https:\/\/www.solar-machinery.com\/pt\/category\/products\/solar-water-pumps\/\">sistemas de bombas de \u00e1gua solares<\/a> com pain\u00e9is e controladores compat\u00edveis. Envie os dados do seu furo atrav\u00e9s do <a href=\"https:\/\/www.solar-machinery.com\/pt\/contact-us\/\">p\u00e1gina de contacto<\/a> e os nossos engenheiros responder\u00e3o indicando um modelo recomendado, dados de desempenho e um or\u00e7amento.<\/p>\n<h2>Produtos e solu\u00e7\u00f5es solares relacionados<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.solar-machinery.com\/pt\/deep-well-dc-solar-pump.html\/\">Bomba solar de corrente cont\u00ednua para po\u00e7os profundos<\/a><\/li>\n<li><a href=\"https:\/\/www.solar-machinery.com\/pt\/stainless-steel-solar-submersible-pump.html\/\">Bomba submers\u00edvel solar em a\u00e7o inoxid\u00e1vel<\/a><\/li>\n<li><a href=\"https:\/\/www.solar-machinery.com\/pt\/dc-solar-submersible-water-pump.html\/\">Bomba de \u00e1gua submers\u00edvel solar de corrente cont\u00ednua<\/a><\/li>\n<li><a href=\"https:\/\/www.solar-machinery.com\/pt\/solar-water-pump-sizing-guide-for-farms-and-wells.html\/\">Guia de dimensionamento de bombas de \u00e1gua solares para explora\u00e7\u00f5es agr\u00edcolas e po\u00e7os<\/a><\/li>\n<li><a href=\"https:\/\/www.solar-machinery.com\/pt\/solar-water-pump-vs-diesel-pump-cost-and-maintenance-comparison.html\/\">Bomba de \u00e1gua solar vs. bomba a gas\u00f3leo: compara\u00e7\u00e3o de custos e manuten\u00e7\u00e3o<\/a><\/li>\n<\/ul>\n<\/p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":90396,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","themepark_post_bcolor":"#f5f5f5","themepark_post_width":"1022px","themepark_post_img":"","themepark_post_img_po":"left","themepark_post_img_re":false,"themepark_post_img_cover":false,"themepark_post_img_fixed":false,"themepark_post_hide_title":false,"themepark_post_main_b":"","themepark_post_main_p":100,"themepark_paddingblock":false,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-90388","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"metadata":{"_thumbnail_id":["90396"],"themepark_post_bcolor":["#f5f5f5"],"themepark_post_width":["1022px"],"themepark_post_img_po":["left"],"themepark_post_main_p":["100"],"themepark_auto_metas":["a:1:{s:6:\"ector0\";s:6361:\"<p>Deep wells and boreholes need a pump that can lift water from significant depth using only the power available from solar panels. Choosing the wrong model leads to weak flow, motor stress or a system that stalls in weaker sunlight. This guide explains the three numbers that decide everything \u2014 head, flow and voltage \u2014 and how to match them to a deep well solar pump.<\/p>\r\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/www.solar-machinery.com\/wp-content\/uploads\/2022\/07\/deepwell01.jpg\" alt=\"Deep well DC solar pump for borehole water supply\"\/><\/figure>\r\n<h2>Step 1: Work Out the Total Dynamic Head<\/h2>\r\n<p>Head is the total height the pump must push water, and it is the single most important number in deep well pump selection. It includes three parts: the vertical distance from the water level inside the well to the ground (not the well depth \u2014 the water level matters), the additional height from the ground up to your storage tank outlet, and the friction loss in the pipe, which grows with long or narrow pipes.<\/p>\r\n<p>Measure the static water level and also ask the driller for the drawdown level \u2014 the level while pumping. Always select the pump against the pumping level plus tank height plus pipe loss, with some margin. A pump chosen only by well depth is very often oversized or undersized.<\/p>\r\n<h2>Step 2: Confirm the Flow Rate You Actually Need<\/h2>\r\n<p>Flow rate should come from your daily water demand, not from the biggest number in a catalogue. Add up the daily consumption \u2014 household use, livestock, irrigation area \u2014 in cubic meters per day, then divide by the effective sunshine hours at your site. That gives the flow the pump must deliver during solar hours.<\/p>\r\n<p>Remember that head and flow trade off against each other: the same pump delivers less flow at higher head. Check the performance curve at YOUR head, and size a storage tank for at least one day of demand so the system rides through cloudy spells without batteries.<\/p>\r\n<h2>Step 3: Match the Voltage Platform and Solar Array<\/h2>\r\n<p>Deep well solar pumps run on DC voltage platforms supplied by a solar array through a pump controller. Higher lift and larger flow need a higher power and usually a higher voltage platform. The solar array must supply enough voltage for the controller to start the pump early in the morning and enough power to hold the duty point through the day.<\/p>\r\n<p>A <a href=\"https:\/\/www.solar-machinery.com\/wide-voltage-solar-water-pump.html\">wide voltage solar water pump<\/a> tolerates a broader input range, which helps in regions with variable sunlight. If grid or generator power is available as backup, an <a href=\"https:\/\/www.solar-machinery.com\/ac-dc-hybrid-solar-water-pump.html\">AC\/DC hybrid pump<\/a> can keep pumping at night or in bad weather.<\/p>\r\n<h2>Pump Construction: Why Materials Matter in Boreholes<\/h2>\r\n<ul><li>Stainless steel pump bodies and impellers resist corrosion and sand wear \u2014 important for long service life inside a borehole, as used in our <a href=\"https:\/\/www.solar-machinery.com\/stainless-steel-solar-submersible-pump.html\">stainless steel solar submersible pump<\/a>.<\/li><li>Brushless DC motors avoid brush replacement, which matters because pulling a pump out of a deep borehole for service is expensive, as in the <a href=\"https:\/\/www.solar-machinery.com\/brushless-dc-solar-water-pump.html\">brushless DC solar water pump<\/a>.<\/li><li>For sandy or high-solids wells, a screw (helical rotor) pump such as the <a href=\"https:\/\/www.solar-machinery.com\/dc-screw-solar-water-pump.html\">DC screw solar water pump<\/a> handles low flow at high head with good tolerance.<\/li><li>Check the pump outer diameter against your borehole casing size before ordering.<\/li><\/ul>\r\n<h2>Deep Well Solar Pump Selection Checklist<\/h2>\r\n<ul><li>Borehole casing inner diameter<\/li><li>Static water level and pumping (drawdown) water level<\/li><li>Tank height and distance from wellhead, pipe diameter and length<\/li><li>Daily water demand in cubic meters<\/li><li>Effective sunshine hours at the site<\/li><li>Backup power available (grid or generator) \u2014 yes or no<\/li><\/ul>\r\n<p>Send these six items to your supplier and you will get an accurate pump model, controller and panel configuration instead of a guess.<\/p>\r\n<h2>Frequently Asked Questions<\/h2>\r\n<h3>Does well depth equal head?<\/h3>\r\n<p>No. The pump works against the water level while pumping, plus tank height and pipe friction \u2014 not the drilled depth. A 100 m borehole with water standing at 30 m is a very different duty from one with water at 90 m.<\/p>\r\n<h3>What if my borehole is narrow?<\/h3>\r\n<p>Check the pump outer diameter first. Submersible deep well solar pumps are built in slim profiles for standard casings, but the exact model must fit your casing with clearance for cooling flow.<\/p>\r\n<h3>Do I need batteries for a deep well pump?<\/h3>\r\n<p>Usually not. Pumping into an elevated storage tank during the day is cheaper and simpler than batteries. Add batteries or a hybrid AC\/DC model only if you must pump at night.<\/p>\r\n<h2>Request a Deep Well Pump Configuration<\/h2>\r\n<p>Suntrica supplies <a href=\"https:\/\/www.solar-machinery.com\/deep-well-dc-solar-pump.html\">deep well DC solar pumps<\/a> and complete <a href=\"https:\/\/www.solar-machinery.com\/category\/products\/solar-water-pumps\">solar water pump systems<\/a> with matched panels and controllers. Send your borehole data through the <a href=\"https:\/\/www.solar-machinery.com\/contact-us\/\">contact page<\/a> and our engineers will reply with a recommended model, performance data and quotation.<\/p>\r\n<h2>Related Solar Products and Solutions<\/h2>\r\n<ul><li><a href=\"https:\/\/www.solar-machinery.com\/deep-well-dc-solar-pump.html\">Deep Well DC Solar Pump<\/a><\/li><li><a href=\"https:\/\/www.solar-machinery.com\/stainless-steel-solar-submersible-pump.html\">Stainless Steel Solar Submersible Pump<\/a><\/li><li><a href=\"https:\/\/www.solar-machinery.com\/dc-solar-submersible-water-pump.html\">DC Solar Submersible Water Pump<\/a><\/li><li><a href=\"https:\/\/www.solar-machinery.com\/solar-water-pump-sizing-guide-for-farms-and-wells.html\">Solar Water Pump Sizing Guide for Farms and Wells<\/a><\/li><li><a href=\"https:\/\/www.solar-machinery.com\/solar-water-pump-vs-diesel-pump-cost-and-maintenance-comparison.html\">Solar Water Pump vs Diesel Pump: Cost and Maintenance Comparison<\/a><\/li><\/ul>\r\n\";}"],"themepark_seo_title":["Deep Well Solar Pump Guide Suntrica"],"themepark_seo_description":["Choose a deep well solar pump by total head, flow rate, voltage platform and borehole size, with a practical selection checklist."],"themepark_seo_keyword":["deep well solar pump, solar borehole pump, solar submersible pump selection"],"_autoid":["1"],"_blocktemname":["\u65b0\u95fb\u8be6\u60c5\u6a21\u677f"],"_edit_lock":["1785695096:1"]},"medium_url":"https:\/\/www.solar-machinery.com\/wp-content\/uploads\/2026\/08\/deep-well-solar-pump-selection-cover-300x169.webp","thumbnail_url":"https:\/\/www.solar-machinery.com\/wp-content\/uploads\/2026\/08\/deep-well-solar-pump-selection-cover-150x150.webp","full_url":"https:\/\/www.solar-machinery.com\/wp-content\/uploads\/2026\/08\/deep-well-solar-pump-selection-cover.webp","_links":{"self":[{"href":"https:\/\/www.solar-machinery.com\/pt\/wp-json\/wp\/v2\/posts\/90388","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.solar-machinery.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.solar-machinery.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.solar-machinery.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.solar-machinery.com\/pt\/wp-json\/wp\/v2\/comments?post=90388"}],"version-history":[{"count":1,"href":"https:\/\/www.solar-machinery.com\/pt\/wp-json\/wp\/v2\/posts\/90388\/revisions"}],"predecessor-version":[{"id":90389,"href":"https:\/\/www.solar-machinery.com\/pt\/wp-json\/wp\/v2\/posts\/90388\/revisions\/90389"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.solar-machinery.com\/pt\/wp-json\/wp\/v2\/media\/90396"}],"wp:attachment":[{"href":"https:\/\/www.solar-machinery.com\/pt\/wp-json\/wp\/v2\/media?parent=90388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.solar-machinery.com\/pt\/wp-json\/wp\/v2\/categories?post=90388"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.solar-machinery.com\/pt\/wp-json\/wp\/v2\/tags?post=90388"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}