{"id":293,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/vane-passing-frequency\/"},"modified":"2026-05-23T22:46:43","modified_gmt":"2026-05-23T22:46:43","slug":"vane-passing-frequency","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/pt-br\/glossary\/vane-passing-frequency\/","title":{"rendered":"O que \u00e9 a Frequ\u00eancia de Passagem das P\u00e1s? Diagn\u00f3stico de P\u00e1s de Bomba"},"content":{"rendered":"<h1>Compreendendo a Frequ\u00eancia de Passagem das P\u00e1s<\/h1>\n\t\t<section class=\"woocommerce hestia-shop products is-shortcode\" id=\"products\" data-sorder=\"hestia_shop\" >\n\t\t\t\t\t\t<div class=\"\">\n\t\t\t\t\t\t<div class=\"hestia-shop-content\">\n\t\t\t<div class=\"row\" data-aos=\"fade-up\" >\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/balanset-1\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/balanset-1\/\" title=\"Portable balancer &#038; Vibration analyzer Balanset-1A\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A full kit portable balancer and vibration analyzer\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt-br\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt-br\/product\/balanset-1\/\" title=\"Portable balancer &#038; Vibration analyzer Balanset-1A\">Balanceador port\u00e1til &#038; Analisador de vibra\u00e7\u00e3o Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>1,975.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/293?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/293?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"Adicione ao carrinho: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_986\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/vibration-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/vibration-sensor\/\" title=\"Sensor de vibra\u00e7\u00e3o\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A vibration sensor close-up\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt-br\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt-br\/product\/vibration-sensor\/\" title=\"Sensor de vibra\u00e7\u00e3o\">Sensor de vibra\u00e7\u00e3o<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>90.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/293?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/293?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"Adicione ao carrinho: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1820\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/optical-sensor-for-balanset-and-arbalance\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Sensor \u00d3ptico (Tac\u00f4metro a Laser)\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Sensor \u00d3ptico (Tac\u00f4metro a Laser)\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1536x1023.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU.webp 1600w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt-br\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt-br\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Sensor \u00d3ptico (Tac\u00f4metro a Laser)\">Sensor \u00d3ptico (Tac\u00f4metro a Laser)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>124.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/293?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/293?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"Adicione ao carrinho: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1832\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/balanset-4\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/balanset-4\/\" title=\"Balanset-4\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Vibromera rotor balancing kit: carry case, multi-channel signal conditioner, handheld analyzer, magnetic base, vibration sensors, and coiled cables.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4.webp 640w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt-br\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt-br\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>6,803.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/293?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/293?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"Adicione ao carrinho: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1833\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div><!-- \/.row --><div class=\"row\">\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/magnet-stand\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/magnet-stand\/\" title=\"Suporte Magn\u00e9tico Insize-60-kgf\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Magnet base.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt-br\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt-br\/product\/magnet-stand\/\" title=\"Suporte Magn\u00e9tico Insize-60-kgf\">Suporte Magn\u00e9tico Insize-60-kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>46.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/293?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/293?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"Adicione ao carrinho: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1852\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/reflective-tape\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/reflective-tape\/\" title=\"Fita refletiva\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Fita refletiva\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-16x12.webp 16w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt-br\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt-br\/product\/reflective-tape\/\" title=\"Fita refletiva\">Fita refletiva<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>10.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/293?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/293?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"Adicione ao carrinho: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2329\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/dynamic-balancer-balanset-1a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/dynamic-balancer-balanset-1a\/\" title=\"Balanceador din\u00e2mico \u201cBalanset-1A\u201d OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A kit contents with interface unit, sensors, tachometer and accessories\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1024x683.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1536x1024.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-2048x1366.webp 2048w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-e1732998877834.webp 708w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt-br\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt-br\/product\/dynamic-balancer-balanset-1a\/\" title=\"Balanceador din\u00e2mico \u201cBalanset-1A\u201d OEM\">Balanceador din\u00e2mico \u201cBalanset-1A\u201d OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>1,735.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/293?add-to-cart=4193\" data-quantity=\"1\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/293?add-to-cart=4193\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4193\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" aria-label=\"Adicione ao carrinho: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4193\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n<p><strong>Frequ\u00eancia de passagem das p\u00e1s<\/strong> (VPF \u2014 tamb\u00e9m chamada de frequ\u00eancia de passagem das p\u00e1s do rotor da bomba ou simplesmente vane pass) \u00e9 a frequ\u00eancia na qual as p\u00e1s de um rotor de bomba rotativo passam por um ponto de refer\u00eancia estacion\u00e1rio, como a l\u00edngua do espiral (cutwater), p\u00e1s do difusor ou outro recurso da carca\u00e7a. \u00c9 calculada como o n\u00famero de p\u00e1s do rotor multiplicado pela frequ\u00eancia rotacional do eixo: <strong>VPF = N<sub>v<\/sub> \u00d7 RPM \/ 60<\/strong>. A VPF \u00e9 o equivalente direto em bombas da <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/blade-passing-frequency\/\">frequ\u00eancia de passagem das p\u00e1s<\/a> vista em ventiladores, e \u00e9 a fonte hidr\u00e1ulica dominante <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/vibration\/\">vibra\u00e7\u00e3o<\/a> em bombas centr\u00edfugas, aparecendo tipicamente entre 100 e 500 Hz para m\u00e1quinas industriais. Acompanhar a amplitude da VPF e suas <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/harmonics\/\">harm\u00f4nicos<\/a> fornece informa\u00e7\u00f5es diagn\u00f3sticas cr\u00edticas sobre a condi\u00e7\u00e3o do rotor, o desempenho hidr\u00e1ulico e as folgas internas.<\/p>\n<h2>1. C\u00e1lculo e Valores T\u00edpicos<\/h2>\n<h3>F\u00f3rmula<\/h3>\n<blockquote><p><strong>VPF = N<sub>v<\/sub> \u00d7 N \/ 60<\/strong> &nbsp; onde N<sub>v<\/sub> = n\u00famero de p\u00e1s do rotor, N = velocidade do eixo em RPM, e o resultado est\u00e1 em Hz.<\/p><\/blockquote>\n<p>Como a VPF \u00e9 sempre um m\u00faltiplo inteiro da <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/running-speed\/\">velocidade de opera\u00e7\u00e3o<\/a> (1\u00d7), ela se enquadra firmemente entre os componentes s\u00edncronos do espectro \u2014 \u00e9 uma verdadeira taxa de passagem das p\u00e1s <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/harmonics\/\">harm\u00f4nico<\/a> da velocidade do eixo, n\u00e3o uma frequ\u00eancia independente.<\/p>\n<h3>Exemplos resolvidos<\/h3>\n<ul>\n<li><strong>Bomba pequena:<\/strong> 5 p\u00e1s a 3500 RPM \u2192 VPF = 5 \u00d7 3500 \/ 60 = <strong>292 Hz<\/strong>.<\/li>\n<li><strong>Bomba de processo grande:<\/strong> 7 p\u00e1s a 1750 RPM \u2192 VPF = 7 \u00d7 1750 \/ 60 = <strong>204 Hz<\/strong>.<\/li>\n<li><strong>Bomba de alta velocidade:<\/strong> 6 p\u00e1s a 4200 RPM \u2192 VPF = 6 \u00d7 4200 \/ 60 = <strong>420 Hz<\/strong>.<\/li>\n<\/ul>\n<h3>Contagens t\u00edpicas de p\u00e1s<\/h3>\n<ul>\n<li><strong>Bombas centr\u00edfugas:<\/strong> 3\u201312 p\u00e1s, sendo 5\u20137 as mais comuns.<\/li>\n<li><strong>Bombas pequenas:<\/strong> menos p\u00e1s (3\u20135).<\/li>\n<li><strong>Bombas grandes:<\/strong> mais p\u00e1s (7\u201312).<\/li>\n<li><strong>Bombas de alta carga:<\/strong> mais p\u00e1s para transferir energia de forma eficaz.<\/li>\n<\/ul>\n<p>Conhecer a contagem exata de p\u00e1s \u00e9 essencial, pois \u00e9 o que separa a VPF de um harm\u00f4nico coincidental do eixo; se o desenho do rotor n\u00e3o estiver dispon\u00edvel, o n\u00famero de p\u00e1s pode frequentemente ser confirmado contando a ordem harm\u00f4nica na qual o pico hidr\u00e1ulico dominante se situa. O <a href=\"https:\/\/vibromera.eu\/pt-br\/calculators\/blade-pass-frequency\/\">Calculadora de Frequ\u00eancia de Passagem de P\u00e1s<\/a> realiza a aritm\u00e9tica tanto para bombas quanto para ventiladores, e o <a href=\"https:\/\/vibromera.eu\/pt-br\/calculators\/harmonic-frequency-calculator\/\">Calculadora de frequ\u00eancia harm\u00f4nica<\/a> ajuda a posicionar a VPF e seus m\u00faltiplos no eixo de frequ\u00eancia.<\/p>\n<h2>2. O Mecanismo F\u00edsico<\/h2>\n<h3>Pulsa\u00e7\u00f5es de press\u00e3o<\/h3>\n<p>A VPF origina-se na varia\u00e7\u00e3o de press\u00e3o hidr\u00e1ulica e n\u00e3o em for\u00e7a mec\u00e2nica. A sequ\u00eancia \u00e9:<\/p>\n<ol>\n<li>Cada p\u00e1 do rotor transporta fluido para fora em alta velocidade.<\/li>\n<li>\u00c0 medida que uma p\u00e1 passa pela l\u00edngua do espiral, ela gera um pulso de press\u00e3o agudo.<\/li>\n<li>O diferencial de press\u00e3o atrav\u00e9s da p\u00e1 muda rapidamente naquele instante.<\/li>\n<li>Isso produz um pulso de for\u00e7a tanto no rotor quanto na carca\u00e7a.<\/li>\n<li>Com N<sub>v<\/sub> p\u00e1s, N<sub>v<\/sub> desses pulsos ocorrem a cada revolu\u00e7\u00e3o.<\/li>\n<li>A frequ\u00eancia de pulsa\u00e7\u00e3o resultante \u00e9 igual \u00e0 taxa de passagem das p\u00e1s \u2014 a VPF.<\/li>\n<\/ol>\n<p>Isso torna a VPF uma das cl\u00e1ssicas <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/hydraulic-forces\/\">for\u00e7as hidr\u00e1ulicas<\/a> atuando em uma bomba, distinta de excita\u00e7\u00f5es puramente mec\u00e2nicas, como <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/unbalance\/\">desbalanceamento<\/a> ou defeitos de rolamento.<\/p>\n<h3>No ponto de projeto (BEP)<\/h3>\n<ul>\n<li>O \u00e2ngulo de fluxo de entrada coincide com o \u00e2ngulo das p\u00e1s.<\/li>\n<li>O fluxo \u00e9 suave, com turbul\u00eancia m\u00ednima.<\/li>\n<li>A amplitude da VPF \u00e9 moderada e est\u00e1vel.<\/li>\n<li>A distribui\u00e7\u00e3o de press\u00e3o ao redor do carter \u00e9 quase \u00f3tima.<\/li>\n<\/ul>\n<h3>Fora do ponto de projeto<\/h3>\n<ul>\n<li>O \u00e2ngulo de fluxo n\u00e3o coincide mais com o \u00e2ngulo das p\u00e1s.<\/li>\n<li>A turbul\u00eancia e a separa\u00e7\u00e3o do fluxo aumentam.<\/li>\n<li>As pulsa\u00e7\u00f5es de press\u00e3o tornam-se mais intensas.<\/li>\n<li>A amplitude da VPF aumenta, frequentemente com componentes de frequ\u00eancia adicionais.<\/li>\n<\/ul>\n<h2>3. Interpreta\u00e7\u00e3o Diagn\u00f3stica<\/h2>\n<h3>Amplitude normal da VPF<\/h3>\n<ul>\n<li>Bomba operando em ou pr\u00f3ximo do seu ponto de melhor efici\u00eancia (BEP).<\/li>\n<li>Amplitude da VPF est\u00e1vel ao longo de medi\u00e7\u00f5es sucessivas.<\/li>\n<li>Tipicamente 10\u201330% da amplitude de vibra\u00e7\u00e3o de 1\u00d7.<\/li>\n<li>Um espectro limpo com conte\u00fado harm\u00f4nico m\u00ednimo.<\/li>\n<\/ul>\n<h3>O que uma VPF elevada indica<\/h3>\n<p><strong>Opera\u00e7\u00e3o fora do BEP.<\/strong> A opera\u00e7\u00e3o em baixo fluxo (abaixo de ~70% do BEP) eleva a VPF, assim como a opera\u00e7\u00e3o em alto fluxo (acima de ~120% do BEP); a faixa \u00f3tima \u00e9 aproximadamente 80\u2013110% do BEP. A opera\u00e7\u00e3o sustentada em baixo fluxo tamb\u00e9m est\u00e1 associada a <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/recirculation\/\">recircula\u00e7\u00e3o interna<\/a>.<\/p>\n<p><strong>Problemas de folga entre o impelidor e o carter.<\/strong> An\u00e9is de desgaste desgastados, ou um impelidor deslocado por <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/bearing-wear\/\">desgaste do rolamento<\/a>, aumentam a folga de opera\u00e7\u00e3o; a amplitude da VPF sobe \u00e0 medida que a folga se abre, acompanhada de perda de desempenho devido ao vazamento interno.<\/p>\n<p><strong>Danos no impelidor.<\/strong> P\u00e1s quebradas ou trincadas criam assimetria, produzindo VPF com <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/sidebands\/\">bandas laterais<\/a> em \u00b11\u00d7 da velocidade de opera\u00e7\u00e3o; eros\u00e3o, ac\u00famulo nas p\u00e1s ou danos por objetos estranhos atuam de forma semelhante. Estes s\u00e3o t\u00edpicos de <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/impeller-defects\/\">defeitos no impelidor<\/a>.<\/p>\n<p><strong>Resson\u00e2ncia hidr\u00e1ulica.<\/strong> Se a VPF coincidir com uma <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/resonance\/\">resson\u00e2ncia<\/a> ac\u00fastica na tubula\u00e7\u00e3o ou no carter, a amplitude \u00e9 dramaticamente amplificada, por vezes provocando vibra\u00e7\u00e3o estrutural severa e ru\u00eddo que exigem modifica\u00e7\u00f5es no sistema.<\/p>\n<h2>4. Harm\u00f4nicos e Subharm\u00f4nicos da VPF<\/h2>\n<h3>2\u00d7VPF e superiores<\/h3>\n<p>M\u00faltiplos harm\u00f4nicos da taxa de passagem das p\u00e1s s\u00e3o um sinal de alerta:<\/p>\n<ul>\n<li><strong>2\u00d7VPF presente:<\/strong> sugere espa\u00e7amento n\u00e3o uniforme das p\u00e1s ou excentricidade do impelidor.<\/li>\n<li><strong>M\u00faltiplos harm\u00f4nicos:<\/strong> indicam turbul\u00eancia hidr\u00e1ulica severa ou danos nas p\u00e1s.<\/li>\n<li><strong>Amplitudes excessivas:<\/strong> aumentam o risco de <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/fatigue\/\">fadiga<\/a> falhas nas p\u00e1s e no carter.<\/li>\n<\/ul>\n<h3>Subharm\u00f4nicos<\/h3>\n<ul>\n<li>Componentes fracion\u00e1rios como VPF\/2 ou VPF\/3.<\/li>\n<li>Indicam instabilidades de fluxo, incluindo estagna\u00e7\u00e3o rotativa e c\u00e9lulas de separa\u00e7\u00e3o.<\/li>\n<li>Mais comuns em vaz\u00f5es muito baixas, e semelhantes a outros <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/subharmonic\/\">subharm\u00f4nico<\/a> fen\u00f4menos.<\/li>\n<\/ul>\n<h2>5. Monitoramento e An\u00e1lise de Tend\u00eancias<\/h2>\n<h3>Estabelecendo um valor de refer\u00eancia<\/h3>\n<ul>\n<li>Registre a VPF quando a bomba for nova ou rec\u00e9m-revisionada.<\/li>\n<li>Documente-a no ponto de opera\u00e7\u00e3o de projeto.<\/li>\n<li>Estabele\u00e7a a raz\u00e3o normal de amplitude VPF\/1\u00d7.<\/li>\n<li>Defina limites de alarme, comumente 2\u20133\u00d7 a amplitude de refer\u00eancia da VPF.<\/li>\n<\/ul>\n<h3>Par\u00e2metros de an\u00e1lise de tend\u00eancias<\/h3>\n<ul>\n<li><strong>Amplitude da VPF:<\/strong> monitorada ao longo do tempo; um aumento constante sinaliza um problema em desenvolvimento.<\/li>\n<li><strong>Raz\u00e3o VPF\/1\u00d7:<\/strong> deve permanecer relativamente constante.<\/li>\n<li><strong>Conte\u00fado harm\u00f4nico:<\/strong> o aparecimento ou crescimento de 2\u00d7VPF e 3\u00d7VPF.<\/li>\n<li><strong>Desenvolvimento de bandas laterais:<\/strong> emerg\u00eancia de bandas laterais de \u00b11\u00d7 ao redor da VPF.<\/li>\n<\/ul>\n<h3>Correlacionando com as condi\u00e7\u00f5es de opera\u00e7\u00e3o<\/h3>\n<ul>\n<li>Plote a VPF em fun\u00e7\u00e3o da vaz\u00e3o.<\/li>\n<li>Identifique a zona de opera\u00e7\u00e3o de VPF m\u00ednima.<\/li>\n<li>Detecte quando o ponto de opera\u00e7\u00e3o se desviou.<\/li>\n<li>Correlacione o comportamento da VPF com a degrada\u00e7\u00e3o de desempenho medida.<\/li>\n<\/ul>\n<p>Esse tipo de <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/trend-analysis\/\">an\u00e1lise de tend\u00eancias<\/a> depende de espectros consistentes e repet\u00edveis. Um analisador port\u00e1til de dois canais, como o <a href=\"https:\/\/vibromera.eu\/pt-br\/produto\/balanset-1\/\">Balanset-1A<\/a> captura o <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/spectrum\/\">espectro FFT<\/a> com a VPF claramente resolvida na regi\u00e3o hidr\u00e1ulica de 100\u2013500 Hz, para que um t\u00e9cnico possa confirmar o pico de passagem das p\u00e1s, monitorar sua amplitude e bandas laterais de visita em visita, e descartar <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/unbalance\/\">desbalanceamento<\/a> mec\u00e2nicos antes de abrir a bomba.<\/p>\n<h2>6. A\u00e7\u00f5es Corretivas<\/h2>\n<h3>Otimiza\u00e7\u00e3o do ponto de opera\u00e7\u00e3o<\/h3>\n<ul>\n<li>Ajuste a vaz\u00e3o para aproximar a bomba do BEP.<\/li>\n<li>Regule a descarga ou altere a resist\u00eancia do sistema.<\/li>\n<li>Verifique se as condi\u00e7\u00f5es de suc\u00e7\u00e3o s\u00e3o adequadas.<\/li>\n<\/ul>\n<h3>Corre\u00e7\u00e3o mec\u00e2nica<\/h3>\n<ul>\n<li>Substitua os an\u00e9is de desgaste gastos para restaurar as folgas de projeto.<\/li>\n<li>Substitua um impelidor gasto ou danificado.<\/li>\n<li>Corrija problemas nos rolamentos que permitam o deslocamento do impelidor.<\/li>\n<li>Verifique a posi\u00e7\u00e3o correta do impelidor, tanto axial quanto radial.<\/li>\n<\/ul>\n<h3>Melhorias hidr\u00e1ulicas<\/h3>\n<ul>\n<li>Melhore a tubula\u00e7\u00e3o de entrada para reduzir o pr\u00e9-rodio e a turbul\u00eancia.<\/li>\n<li>Instale retificadores de fluxo onde for apropriado.<\/li>\n<li>Verifique uma margem de NPSH adequada para evitar <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/cavitation\/\">cavita\u00e7\u00e3o<\/a>.<\/li>\n<li>Elimine a entrada de ar.<\/li>\n<\/ul>\n<h2>7. Rela\u00e7\u00e3o com outras frequ\u00eancias<\/h2>\n<h3>VPF versus BPF<\/h3>\n<ul>\n<li>Os termos s\u00e3o frequentemente usados de forma intercambi\u00e1vel em bombas e ventiladores.<\/li>\n<li><strong>VPF:<\/strong> o termo preferencial para bombas (p\u00e1s movendo l\u00edquido).<\/li>\n<li><strong>BPF:<\/strong> o termo preferencial para ventiladores (p\u00e1s movendo ar).<\/li>\n<li>O c\u00e1lculo e a abordagem diagn\u00f3stica s\u00e3o id\u00eanticos.<\/li>\n<\/ul>\n<h3>VPF versus velocidade de opera\u00e7\u00e3o<\/h3>\n<ul>\n<li>VPF = N<sub>v<\/sub> \u00d7 (frequ\u00eancia da velocidade de opera\u00e7\u00e3o).<\/li>\n<li>A VPF \u00e9 sempre uma frequ\u00eancia mais alta que 1\u00d7.<\/li>\n<li>Para um impelidor de 7 p\u00e1s, por exemplo, a VPF ocorre exatamente em 7\u00d7 a velocidade de opera\u00e7\u00e3o.<\/li>\n<\/ul>\n<p>A frequ\u00eancia de passagem das p\u00e1s \u00e9 o componente fundamental de vibra\u00e7\u00e3o hidr\u00e1ulica de toda bomba centr\u00edfuga. Dominar seu c\u00e1lculo, reconhecer amplitudes normais versus elevadas e correlacionar seus padr\u00f5es com as condi\u00e7\u00f5es de opera\u00e7\u00e3o e a condi\u00e7\u00e3o da bomba transforma um \u00fanico pico espectral em um poderoso diagn\u00f3stico \u2014 orientando decis\u00f5es s\u00f3lidas sobre otimiza\u00e7\u00e3o do ponto de opera\u00e7\u00e3o, restaura\u00e7\u00e3o de folgas e substitui\u00e7\u00e3o do impelidor. \u00c9 uma pedra angular do mais amplo <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/pump-defects\/\">diagn\u00f3stico de falhas em bombas<\/a>.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/\">\u2190 Voltar ao \u00cdndice Principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Learn about vane passing frequency (VPF), the rate at which pump impeller vanes pass stationary diffuser or volute cutwater, essential for diagnosing hydraulic and mechanical issues.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-293","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/293","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/293\/revisions"}],"predecessor-version":[{"id":101369,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/293\/revisions\/101369"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/media?parent=293"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/categories?post=293"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/tags?post=293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}