{"id":101574,"date":"2026-05-30T21:41:00","date_gmt":"2026-05-30T21:41:00","guid":{"rendered":"https:\/\/vibromera.eu\/?page_id=101574"},"modified":"2026-07-02T18:42:19","modified_gmt":"2026-07-02T18:42:19","slug":"pumps","status":"publish","type":"page","link":"https:\/\/vibromera.eu\/pt-br\/balancing-catalog\/pumps\/","title":{"rendered":"Pump &#038; Impeller Balancing"},"content":{"rendered":"<div class=\"vbm-cat\">\n<style>\n.vbm-cat .vbm-answer{background:#eaf1ec;border-left:4px solid #2f6e46;border-radius:4px;padding:16px 20px;margin:0 0 24px;font-size:16px;line-height:1.65;color:#16202b}\n.vbm-cat .vbm-toc{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 32px;padding:0}\n.vbm-cat .vbm-toc a{background:#f1f5f9;border:1px solid #cbd5e1;border-radius:999px;padding:5.6px 13.6px;font-size:13.6px;color:#1f3a5f;text-decoration:none;white-space:nowrap;transition:background .18s,color .18s}\n.vbm-cat .vbm-toc a:hover{background:#1f3a5f;color:#fff}\n.vbm-cat .vbm-kit{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start;margin:24px 0}\n@media(max-width:700px){.vbm-cat .vbm-kit{grid-template-columns:1fr}}\n.vbm-cat .vbm-kit .media{margin:0}\n.vbm-cat .vbm-kit .media img{width:100%;border-radius:6px;display:block}\n.vbm-cat .vbm-kit .price{font-size:21.6px;font-weight:700;color:#b9542d;margin:8px 0 16px}\n.vbm-cat .vbm-kit .price span{font-size:13.6px;font-weight:400;color:#555}\n.vbm-cat ul.vbm-kit-list{list-style:none;margin:8px 0 20px;padding:0}\n.vbm-cat ul.vbm-kit-list li{padding:4.8px 0 4.8px 25.6px;position:relative;font-size:15.2px}\n.vbm-cat ul.vbm-kit-list li::before{content:\"\u2713\";position:absolute;left:0;color:#2f6e46;font-weight:700}\n.vbm-cat .vbm-variants{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:24px 0}\n@media(max-width:600px){.vbm-cat .vbm-variants{grid-template-columns:1fr}}\n.vbm-cat .vbm-variant{border:2px solid #cbd5e1;border-radius:8px;padding:17.6px 20px}\n.vbm-cat .vbm-variant.is-primary{border-color:#b9542d;background:#faf4ef}\n.vbm-cat .vbm-variant .tag{display:inline-block;font-size:11.52px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;background:#b9542d;color:#fff;border-radius:3px;padding:.15em .55em;margin-bottom:8px}\n.vbm-cat .vbm-variant:not(.is-primary) .tag{background:#1f3a5f}\n.vbm-cat .vbm-variant h3{margin:4.8px 0 8px;font-size:16.8px}\n.vbm-cat .vbm-variant p{margin:0;font-size:14.4px;color:#444}\n.vbm-cat table.vbm-table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.4px}\n.vbm-cat table.vbm-table caption{text-align:left;font-weight:700;margin-bottom:6.4px;color:#1f3a5f}\n.vbm-cat table.vbm-table th{background:#1f3a5f;color:#fff;padding:8.8px 12px;text-align:left}\n.vbm-cat table.vbm-table td{padding:8px 12px;border-bottom:1px solid #e2e8f0;vertical-align:top}\n.vbm-cat table.vbm-table tr:nth-child(even) td{background:#f8fafc}\n.vbm-cat table.vbm-table td.yes{color:#2f6e46;font-weight:700}\n.vbm-cat table.vbm-table td.no{color:#a32a22;font-weight:700}\n.vbm-cat .vbm-trust{display:flex;flex-wrap:wrap;gap:9.6px;margin-top:20px}\n.vbm-cat .vbm-trust span{background:#f1f5f9;border:1px solid #cbd5e1;border-radius:4px;padding:4.8px 12px;font-size:13.44px;color:#333}\n<\/style>\n<p class=\"vbm-cat-bc\"><a href=\"https:\/\/vibromera.eu\/pt-br\/balancing-catalog\/\">Servi\u00e7os de balanceamento<\/a> &rsaquo; Pumps &amp; Impellers<\/p>\n<div class=\"vbm-hero2\">\n<div>\n<h1>Pump Balancing &mdash; In-Situ, at Operating Speed<\/h1>\n<p class=\"lede\">Centrifugal and hydraulic pumps develop vibration the moment corrosion, cavitation or scale shifts the mass of the impeller. We balance pump rotors <strong>no local, na velocidade de opera\u00e7\u00e3o<\/strong> &mdash; no removal from the casing, no pipe disconnection &mdash; eliminating the root cause of bearing failure and seal leaks in a single on-site session.<\/p>\n<div class=\"vbm-cta-row\" style=\"justify-content:flex-start\">\n<a class=\"vbm-btn vbm-btn-primary\" href=\"https:\/\/vibromera.eu\/pt-br\/balanset-1a\/\">Obter o Balanset-1A<\/a><br \/>\n<a class=\"vbm-btn vbm-btn-ghost\" href=\"https:\/\/vibromera.eu\/pt-br\/community\/\">Consultar nosso engenheiro<\/a>\n<\/div>\n<\/div>\n<figure class=\"media\"><img decoding=\"async\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/10\/%D0%91%D0%B5%D0%B7%D1%8B%D0%BC%D1%8F%D0%BD%D0%BD%D1%8B%D0%B9.webp\" alt=\"Pump impeller being balanced in-situ at operating speed\" loading=\"lazy\"><\/figure>\n<\/div>\n<p class=\"vbm-answer\"><b>Em resumo:<\/b> Pump-impeller balancing is performed in-situ, at normal operating speed and pressure, using the influence-coefficient method. A vibration sensor on the bearing housing and a laser tachometer on the shaft measure the unbalance state; the Balanset-1A calculates the exact correction mass and angle. No pump removal, no pipe work \u2014 a typical single-stage job is complete in under one hour, reducing vibration by 70&nbsp;% or more and extending bearing and seal life by a factor of eight or more.<\/p>\n<nav class=\"vbm-toc\">\n<a href=\"#signs\">Sintomas<\/a><br \/>\n<a href=\"#why\">Causas e custos<\/a><br \/>\n<a href=\"#how\">Passo a passo<\/a><br \/>\n<a href=\"#what\">O que balanceamos<\/a><br \/>\n<a href=\"#standards\">Normas<\/a><br \/>\n<a href=\"#device\">O Balanset-1A<\/a><br \/>\n<a href=\"#compare\">Campo vs m\u00e1quina<\/a><br \/>\n<a href=\"#cases\">Casos reais<\/a><br \/>\n<a href=\"#calc\">Calculadoras<\/a><br \/>\n<a href=\"#faq\">FAQ<\/a><br \/>\n<\/nav>\n<div class=\"vbm-sec\" id=\"signs\">\n<h2>Signs your pump is out of balance<\/h2>\n<p>Pump vibration is often dismissed as normal, yet each of these symptoms points to a correctable imbalance in the impeller or rotor:<\/p>\n<div class=\"vbm-signs\">\n<div><b>Vibra\u00e7\u00e3o em 1&times; RPM<\/b> A dominant once-per-revolution component in the spectrum is the textbook signature of residual unbalance.<\/div>\n<div><b>Recurring seal failures<\/b> Mechanical seals are sensitive to lateral shaft movement &mdash; unbalance accelerates face wear and leaks.<\/div>\n<div><b>Vida \u00fatil curta do rolamento<\/b> Radial loads from an unbalanced impeller fatigue rolling-element bearings far ahead of their rated L<sub>10<\/sub> vida \u00fatil.<\/div>\n<div><b>Elevated casing temperature<\/b> Vibration energy dissipates as heat in the housing, raising bearing and fluid temperatures.<\/div>\n<div><b>Foundation cracking<\/b> Cyclic forces at running speed eventually crack grout or pump-base welds.<\/div>\n<div><b>Noise misread as cavitation<\/b> Rough low-frequency noise is often misdiagnosed as cavitation when the actual cause is rotational unbalance.<\/div>\n<\/div>\n<\/div>\n<div class=\"vbm-sec\" id=\"why\">\n<h2>Why pump impellers lose balance &mdash; and what it costs<\/h2>\n<p>A freshly assembled pump leaves the factory balanced, but service conditions continuously attack that balance. <b>Cavitation pitting<\/b> erodes vane surfaces unevenly; abrasive slurries wear one side of the impeller faster than the other; <b>scale and deposits<\/b> accumulate non-uniformly inside flow passages; weld repairs or replacement wear rings add asymmetric mass. Because centrifugal force grows with the <em>quadrado<\/em> of rotational speed, a few grams of offset at 1,500&nbsp;rpm becomes tens of kilonewtons of shaking force at 3,000&nbsp;rpm.<\/p>\n<p>The financial toll compounds quickly: seal replacement every three months, bearing changeouts, unplanned process shutdowns, and the labour cost of pulling the pump from the line. A single field-balancing session &mdash; typically under one hour &mdash; removes the dynamic load responsible for all of these failures rather than replacing the components it destroys.<\/p>\n<\/div>\n<div class=\"vbm-band\">\n<div class=\"vbm-stats\">\n<div class=\"vbm-stat\"><b>&times;10<\/b><span>vida \u00fatil do rolamento quando a vibra\u00e7\u00e3o \u00e9 reduzida pela metade<\/span><\/div>\n<div class=\"vbm-stat\"><b>&minus;70%<\/b><span>queda t\u00edpica de vibra\u00e7\u00e3o ap\u00f3s uma sess\u00e3o<\/span><\/div>\n<div class=\"vbm-stat\"><b>2<\/b><span>planos corrigidos em uma visita<\/span><\/div>\n<div class=\"vbm-stat\"><b>&lt;1h<\/b><span>typical on-site job, single-stage pump<\/span><\/div>\n<\/div>\n<\/div>\n<div class=\"vbm-sec\">\n<h2>Por que reduzir a vibra\u00e7\u00e3o pela metade multiplica a vida \u00fatil do rolamento<\/h2>\n<div class=\"vbm-callout\"><b>ISO 281<\/b> define a vida \u00fatil nominal do rolamento como <b>L<sub>10<\/sub> = (C\/P)<sup>p<\/sup><\/b>, onde P \u00e9 a carga din\u00e2mica suportada pelo rolamento e o expoente p = 3 para rolamentos de esferas e 10\/3 para rolamentos de rolos. O desbalanceamento residual <em>\u00e9<\/em> essa carga rotativa P, e a amplitude de vibra\u00e7\u00e3o acompanha diretamente &mdash; ent\u00e3o, cortar a vibra\u00e7\u00e3o pela metade reduz P pela metade e multiplica a vida \u00fatil do rolamento por 2<sup>p<\/sup>: cerca de <b>8&times; para rolamentos de esferas e ~10&times; para rolamentos de rolos<\/b> (2<sup>10\/3<\/sup>&nbsp;&asymp;&nbsp;10). Fa\u00e7a seus pr\u00f3prios c\u00e1lculos em nosso <a href=\"https:\/\/vibromera.eu\/pt-br\/calculators\/bearing-load\/\">calculadora de vida \u00fatil do rolamento<\/a>.<\/div>\n<\/div>\n<div class=\"vbm-sec\" id=\"how\">\n<h2>How we balance a pump &mdash; step by step<\/h2>\n<p>Field balancing with the Balanset-1A follows the influence-coefficient method &mdash; the same systematic procedure you can carry out yourself on site:<\/p>\n<ol class=\"vbm-steps\">\n<li><b>Monte os sensores.<\/b> A vibration accelerometer is fixed to the pump bearing housing and a laser tachometer is aimed at a reflective strip on the shaft. No disassembly is required &mdash; the pump runs under normal operating conditions throughout.<\/li>\n<li><b>Me\u00e7a o valor de refer\u00eancia.<\/b> One run at full operating speed records vibration amplitude and phase angle, establishing the current unbalance state in amplitude and direction.<\/li>\n<li><b>Adicionar uma massa de teste.<\/b> A known test mass is clamped to the impeller hub or balance ring. A second run shows how the rotor responds to a specific weight at a known angular position &mdash; the influence coefficient.<\/li>\n<li><b>Deixe o dispositivo calcular.<\/b> The Balanset-1A applies the influence-coefficient algorithm to compute the exact correction mass and angular placement &mdash; one plane for compact closed impellers, two planes for wide double-suction rotors or long multi-stage shaft assemblies.<\/li>\n<li><b>Instale a massa de corre\u00e7\u00e3o.<\/b> Weld, bolt or clamp the calculated mass at the indicated position on the impeller hub, vane, or balance ring. Remove the trial weight unless it forms part of the solution.<\/li>\n<li><b>Verifique e documente.<\/b> A final measurement run confirms residual unbalance is within the ISO tolerance band for the pump&rsquo;s balance grade. The Balanset-1A prints a balancing report for maintenance records.<\/li>\n<\/ol>\n<\/div>\n<div class=\"vbm-sec\" id=\"what\">\n<h2>O que balanceamos<\/h2>\n<ul class=\"vbm-list\">\n<li>Single-stage centrifugal pump impellers<\/li>\n<li>Multi-stage pump shaft assemblies<\/li>\n<li>Double-suction (two-plane) impellers<\/li>\n<li>Hydraulic pump rotors<\/li>\n<li>Vacuum pump rotors<\/li>\n<li>Submersible pump impellers<\/li>\n<li>Slurry and chemical pump impellers<\/li>\n<li>Inline and end-suction pump rotors<\/li>\n<li>Fire and booster pump impellers<\/li>\n<li>Circulation and cooling-water pump impellers<\/li>\n<\/ul>\n<\/div>\n<div class=\"vbm-sec\" id=\"standards\">\n<h2>Toler\u00e2ncias e normas<\/h2>\n<div class=\"vbm-callout\">\n<p><b>ISO 21940-11<\/b> (formerly ISO 1940-1) defines rigid-rotor balance quality grades from G0.4 to G4000. Most process pump impellers are balanced to <b>G2.5 ou G1.0<\/b> &mdash; the tighter grades appropriate for machines with high peripheral speed or precision mechanical seals.<\/p>\n<p>In process-plant contexts, <b>API 610<\/b> further specifies residual unbalance limits for centrifugal pumps in hydrocarbon service, requiring each rotating assembly to achieve a maximum residual unbalance per correction plane of <b>U<sub>max<\/sub> = 6350W\/N (g&middot;mm)<\/b>, where W is the journal static load for that correction plane in kg and N is the maximum continuous speed in rpm (the equivalent imperial form is 4W\/N oz&middot;in with W in lb). We balance to the grade your application demands and supply documented residual-unbalance figures for your maintenance records. Use our <a href=\"https:\/\/vibromera.eu\/pt-br\/calculators\/residual-unbalance-iso1940\/\">calculadora de desbalanceamento residual<\/a> para encontrar sua toler\u00e2ncia admiss\u00edvel antes de come\u00e7ar.<\/p>\n<\/div>\n<\/div>\n<div class=\"vbm-sec\" id=\"device\">\n<h2>O Balanset-1A &mdash; seu kit completo de balanceamento em campo<\/h2>\n<p>Tudo nesta p\u00e1gina \u00e9 feito com um \u00fanico instrumento port\u00e1til: o <a href=\"https:\/\/vibromera.eu\/pt-br\/balanset-1a\/\">Balanset-1A<\/a>. It is a two-channel dynamic balancer and vibration analyzer that balances pump rotors <strong>em seus pr\u00f3prios mancais, na velocidade de opera\u00e7\u00e3o<\/strong>, usando o m\u00e9todo dos coeficientes de influ\u00eancia de 3 medi\u00e7\u00f5es &mdash; o software calcula a massa e o \u00e2ngulo exatos de corre\u00e7\u00e3o e salva um relat\u00f3rio.<\/p>\n<div class=\"vbm-kit\">\n<figure class=\"media\"><img decoding=\"async\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/%D0%91%D0%B0%D0%BB%D0%BA%D0%BE%D0%BC%D0%9A%D0%B8%D1%82-scaled-1024x683.jpg\" alt=\"Complete Balanset-1A balancing kit with sensors, laser tachometer, scale and case\" loading=\"lazy\"><\/figure>\n<div>\n<h3>O que h\u00e1 no Kit Completo<\/h3>\n<p class=\"price\">&euro;1.975 <span>&middot; Kit Completo, em estoque, nota fiscal com IVA<\/span><\/p>\n<ul class=\"vbm-kit-list\">\n<li>Unidade de medi\u00e7\u00e3o de interface (USB, 2 canais)<\/li>\n<li>Dois aceler\u00f4metros de vibra\u00e7\u00e3o (cabo de 4&nbsp;m, 10&nbsp;m opcional)<\/li>\n<li>Tac\u00f4metro a laser \/ sensor de fase \u00f3ptico (50&ndash;500&nbsp;mm)<\/li>\n<li>Suporte magn\u00e9tico para o sensor<\/li>\n<li>Balan\u00e7a digital para massas de teste e corre\u00e7\u00e3o<\/li>\n<li>Software de balanceamento e an\u00e1lise para Windows<\/li>\n<li>Estojo de transporte em pl\u00e1stico<\/li>\n<\/ul>\n<div class=\"vbm-cta-row\" style=\"justify-content:flex-start\">\n<a class=\"vbm-btn vbm-btn-primary\" href=\"https:\/\/vibromera.eu\/pt-br\/balanset-1a\/\">Ver o Balanset-1A<\/a><br \/>\n<a class=\"vbm-btn vbm-btn-ghost\" href=\"https:\/\/vibromera.eu\/pt-br\/community\/\">Consultar nosso engenheiro<\/a>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"vbm-variants\">\n<div class=\"vbm-variant is-primary\"><span class=\"tag\">Recomendado<\/span><\/p>\n<h3>Kit Completo<\/h3>\n<p>Unidade &middot; 2 sensores &middot; tac\u00f4metro a laser &middot; suporte magn\u00e9tico &middot; balan\u00e7a digital &middot; software &middot; estojo de transporte. Tudo o que \u00e9 necess\u00e1rio para come\u00e7ar a balancear direto da caixa.<\/p>\n<\/div>\n<div class=\"vbm-variant\"><span class=\"tag\">OEM<\/span><\/p>\n<h3>Conjunto OEM<\/h3>\n<p>Unidade &middot; 2 sensores &middot; tac\u00f4metro a laser &middot; software. Para integradores que j\u00e1 possuem suporte, balan\u00e7a e estojo, ou que incorporam a unidade em uma m\u00e1quina de balanceamento.<\/p>\n<\/div>\n<\/div>\n<table class=\"vbm-table\">\n<caption>Especifica\u00e7\u00f5es t\u00e9cnicas principais<\/caption>\n<thead>\n<tr>\n<th>Par\u00e2metro<\/th>\n<th>Valor<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Canais de medi\u00e7\u00e3o<\/td>\n<td>2 (balanceamento em plano \u00fanico e em dois planos)<\/td>\n<\/tr>\n<tr>\n<td>Faixa de velocidade de vibra\u00e7\u00e3o<\/td>\n<td>0,2&ndash;80 mm\/s RMS<\/td>\n<\/tr>\n<tr>\n<td>Faixa de frequ\u00eancia<\/td>\n<td>5&ndash;1000 Hz (&le;10% de erro de amplitude acima de 550&nbsp;Hz)<\/td>\n<\/tr>\n<tr>\n<td>Precis\u00e3o de medi\u00e7\u00e3o<\/td>\n<td>&plusmn;5% da escala total<\/td>\n<\/tr>\n<tr>\n<td>M\u00e9todo<\/td>\n<td>Coeficientes de influ\u00eancia de 3 medi\u00e7\u00f5es (1 ou 2 planos)<\/td>\n<\/tr>\n<tr>\n<td>An\u00e1lise<\/td>\n<td>Amplitude e fase em 1&times;, espectro FFT e forma de onda, relat\u00f3rios salvos<\/td>\n<\/tr>\n<tr>\n<td>Computador port\u00e1til<\/td>\n<td>N\u00e3o inclu\u00eddo (PC com Windows, dispon\u00edvel sob solicita\u00e7\u00e3o)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"vbm-trust\"><span><b>&#10003;<\/b> Em estoque<\/span><span><b>&#10003;<\/b> DHL Portugal &euro;35<\/span><span><b>&#10003;<\/b> DHL mundial &euro;110<\/span><span><b>&#10003;<\/b> Garantia de 2 anos<\/span><span><b>&#10003;<\/b> Nota fiscal com IVA<\/span><span><b>&#10003;<\/b> Suporte de engenheiro<\/span><\/div>\n<\/div>\n<div class=\"vbm-sec\" id=\"compare\">\n<h2>Field balancing vs balancing machine &mdash; which is right for your pump?<\/h2>\n<table class=\"vbm-table\">\n<caption>Compara\u00e7\u00e3o: balanceamento em campo in situ vs m\u00e1quina de balanceamento dedicada<\/caption>\n<thead>\n<tr>\n<th>Fator<\/th>\n<th>Balanceamento em campo (Balanset-1A)<\/th>\n<th>M\u00e1quina de balanceamento (oficina)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Pump removed from line?<\/td>\n<td class=\"yes\">N\u00e3o &mdash; opera no local<\/td>\n<td class=\"no\">Sim &mdash; desmontagem completa necess\u00e1ria<\/td>\n<\/tr>\n<tr>\n<td>Pipe disconnection?<\/td>\n<td class=\"yes\">N\u00e3o<\/td>\n<td class=\"no\">Sim<\/td>\n<\/tr>\n<tr>\n<td>Tempo de parada da produ\u00e7\u00e3o<\/td>\n<td>Apenas instala\u00e7\u00e3o do sensor (&lt;15 min)<\/td>\n<td>Horas a dias (retirada, envio, balanceamento, reinstala\u00e7\u00e3o)<\/td>\n<\/tr>\n<tr>\n<td>Velocidade de balanceamento<\/td>\n<td>Velocidade e condi\u00e7\u00f5es reais de opera\u00e7\u00e3o<\/td>\n<td>Mandril de baixa velocidade separado<\/td>\n<\/tr>\n<tr>\n<td>Accounts for coupling &amp; shaft flex<\/td>\n<td class=\"yes\">Sim &mdash; montagem completa balanceada<\/td>\n<td class=\"no\">Impeller only<\/td>\n<\/tr>\n<tr>\n<td>Normas atendidas<\/td>\n<td>ISO 21940-11, API 610<\/td>\n<td>ISO 21940-11<\/td>\n<\/tr>\n<tr>\n<td>Custo do equipamento<\/td>\n<td>&euro;1.975 (Kit Completo)<\/td>\n<td>&euro;10.000 &ndash; &euro;50.000+<\/td>\n<\/tr>\n<tr>\n<td>Tempo t\u00edpico de servi\u00e7o<\/td>\n<td>&lt;1 hora no local<\/td>\n<td>1&ndash;3 dias no total<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Field balancing is the preferred choice whenever the pump can run and the rotor rigidity criterion is satisfied. A workshop machine remains appropriate for new-build impellers where zero run time is available, or for very large rotors requiring disassembly for other reasons.<\/p>\n<\/div>\n<div class=\"vbm-sec\" id=\"cases\">\n<h2>Real pump-balancing cases<\/h2>\n<div class=\"vbm-cases\">\n<a class=\"vbm-case\" href=\"https:\/\/vibromera.eu\/pt-br\/exemplo\/bombas-hidraulicas-balanceamento\/\"><img decoding=\"async\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/02\/interface-1-e1518391488191.webp\" alt=\"Hydraulic pump rotor field balancing with Balanset-1A\" loading=\"lazy\"><\/p>\n<div class=\"body\">\n<h3>Hydraulic pumps<\/h3>\n<p>Field balancing of hydraulic pump rotors to eliminate vibration and extend seal life.<\/p>\n<\/div>\n<p><\/a><br \/>\n<a class=\"vbm-case\" href=\"https:\/\/vibromera.eu\/pt-br\/exemplo\/balanceamento-de-rotores-de-bombas-de-vacuo\/\"><img decoding=\"async\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/10\/%D0%91%D0%B5%D0%B7%D1%8B%D0%BC%D1%8F%D0%BD%D0%BD%D1%8B%D0%B9.webp\" alt=\"Vacuum pump rotor in-situ balancing\" loading=\"lazy\"><\/p>\n<div class=\"body\">\n<h3>Vacuum pump rotors<\/h3>\n<p>Balancing vacuum pump rotors in place to reduce bearing loads and noise.<\/p>\n<\/div>\n<p><\/a><br \/>\n<a class=\"vbm-case\" href=\"https:\/\/vibromera.eu\/pt-br\/sem-categoria\/suporte-de-balanceamento-de-bombas-de-vacuo\/\"><img decoding=\"async\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/10\/%D0%91%D0%B5%D0%B7%D1%8B%D0%BC%D1%8F%D0%BD%D0%BD%D1%8B%D0%B9.webp\" alt=\"Vacuum pump stand balancing procedure with documented results\" loading=\"lazy\"><\/p>\n<div class=\"body\">\n<h3>Vacuum pump stand<\/h3>\n<p>Stand-based balancing procedure for vacuum pump rotors with documented results.<\/p>\n<\/div>\n<p><\/a>\n<\/div>\n<\/div>\n<div class=\"vbm-sec\" id=\"calc\">\n<h2>Free pump calculators<\/h2>\n<div class=\"vbm-chips\">\n<a href=\"https:\/\/vibromera.eu\/pt-br\/calculators\/centrifugal-force-unbalance\/\">For\u00e7a centr\u00edfuga do desbalanceamento<\/a><br \/>\n<a href=\"https:\/\/vibromera.eu\/pt-br\/calculators\/residual-unbalance-iso1940\/\">Desbalanceamento residual (ISO 1940)<\/a><br \/>\n<a href=\"https:\/\/vibromera.eu\/pt-br\/calculators\/trial-weight-calculator\/\">Calculadora de massa de teste<\/a><br \/>\n<a href=\"https:\/\/vibromera.eu\/pt-br\/calculators\/bearing-load\/\">Calculadora de vida \u00fatil do rolamento<\/a>\n<\/div>\n<\/div>\n<div class=\"vbm-sec vbm-faq\" id=\"faq\">\n<h2>Pump balancing FAQ<\/h2>\n<details>\n<summary>Does the pump need to be pulled from the pipe for balancing?<\/summary>\n<div class=\"ans\">No. Field balancing is performed with the impeller in its own bearings and casing, running at normal operating speed and pressure. There is no dismounting, no pipe disconnection, and no need for a separate balancing machine. The Balanset-1A attaches a sensor to the bearing housing and a laser tacho to the shaft &mdash; that is all the access required.<\/div>\n<\/details>\n<details>\n<summary>One plane or two for a pump impeller?<\/summary>\n<div class=\"ans\">Compact closed impellers with a small axial width relative to their diameter are generally corrected in a single plane. Wide open impellers, double-suction rotors, and long multi-stage shaft assemblies need two-plane balancing because the unbalance is distributed along the shaft length. The Balanset-1A handles both modes with the same hardware.<\/div>\n<\/details>\n<details>\n<summary>My pump vibrates but the bearings are new &mdash; is it still unbalance?<\/summary>\n<div class=\"ans\">Very likely yes. New bearings remove the secondary symptom (worn bearing) but not the primary cause (residual unbalance). Vibration dominated by the once-per-revolution frequency component confirms unbalance is the culprit. The Balanset-1A shows you the full frequency breakdown so you can confirm before adding any correction weight.<\/div>\n<\/details>\n<details>\n<summary>How long does a typical pump balancing job take?<\/summary>\n<div class=\"ans\">Most single-stage pump jobs are complete in under an hour from sensor mounting to final verification run. Wide multi-stage assemblies or pumps with restricted access can take a little longer, but the process &mdash; baseline, trial-weight run, correction, verify &mdash; remains the same systematic four steps.<\/div>\n<\/details>\n<details>\n<summary>Can we do it ourselves with the Balanset-1A?<\/summary>\n<div class=\"ans\">Yes. The Balanset-1A is designed for maintenance teams to operate without specialist training. It walks you through each measurement run, calculates the correction automatically, and outputs a result report. Our community forum is available if you encounter an unusual rotor or want to verify your approach.<\/div>\n<\/details>\n<details>\n<summary>What balance grade do pump impellers need to meet?<\/summary>\n<div class=\"ans\">Most industrial centrifugal pump impellers are balanced to ISO 21940-11 grade G2.5 or G1.0. Pumps in hydrocarbon or chemical service governed by API 610 must achieve a residual unbalance per correction plane of no more than 6350W\/N (g&middot;mm), where W is the journal static load for that correction plane in kg and N is the maximum continuous speed in rpm (equivalent to 4W\/N oz&middot;in with W in lb). We document the achieved residual unbalance in the balancing report so you have a verifiable record against whichever standard applies.<\/div>\n<\/details>\n<\/div>\n<div class=\"vbm-sec\">\n<h2>Aprenda a teoria<\/h2>\n<div class=\"vbm-chips blue\">\n<a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/impeller-defects\/\">Defeitos de impelidores<\/a><br \/>\n<a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/balance-quality\/\">Graus de qualidade de balanceamento<\/a><br \/>\n<a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/balanceamento-de-campo\/\">Balanceamento em campo<\/a><br \/>\n<a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/residual-unbalance\/\">Desbalanceamento residual<\/a><br \/>\n<a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/dynamic-balancing\/\">Balanceamento din\u00e2mico<\/a>\n<\/div>\n<\/div>\n<div class=\"vbm-band\">\n<h2>Balance your pump impeller &mdash; in place, today<\/h2>\n<p>The Balanset-1A guides you through single- and two-plane pump balancing at running speed, calculates the exact correction weight and angle, and documents the result to ISO 21940-11 and API 610. No dismounting, no lost production &mdash; just a quieter, longer-lasting pump.<\/p>\n<div class=\"vbm-cta-row\">\n<a class=\"vbm-btn vbm-btn-primary\" href=\"https:\/\/vibromera.eu\/pt-br\/balanset-1a\/\">Ver o Balanset-1A<\/a><br \/>\n<a class=\"vbm-btn vbm-btn-ghost\" href=\"https:\/\/vibromera.eu\/pt-br\/community\/\">Fa\u00e7a uma pergunta no f\u00f3rum<\/a>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Balancing services &rsaquo; Pumps &amp; Impellers Pump Balancing &mdash; In-Situ, at Operating Speed Centrifugal and hydraulic pumps develop vibration the moment corrosion, cavitation or scale shifts the mass of the impeller. We balance pump rotors in place, at operating speed &mdash; no removal from the casing, no pipe disconnection &mdash; [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":0,"parent":101558,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ai_generated_summary":"","footnotes":""},"class_list":["post-101574","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/pages\/101574","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/types\/page"}],"replies":[{"embeddable":true,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/comments?post=101574"}],"version-history":[{"count":5,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/pages\/101574\/revisions"}],"predecessor-version":[{"id":102062,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/pages\/101574\/revisions\/102062"}],"up":[{"embeddable":true,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/pages\/101558"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/media?parent=101574"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}