{"id":207,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/recirculation\/"},"modified":"2026-05-23T22:53:11","modified_gmt":"2026-05-23T22:53:11","slug":"recirculation","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/fi\/glossary\/recirculation\/","title":{"rendered":"Mik\u00e4 on kierr\u00e4tys? Pienen virtauksen pumpun ep\u00e4vakaus"},"content":{"rendered":"<h1>Takaisinkierron ymm\u00e4rt\u00e4minen pumpuissa<\/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\/fi\/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\/fi\/product\/balanset-1\/\" title=\"Kannettava tasapainotin ja t\u00e4rin\u00e4analysaattori 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 kannettava tasapainotin ja v\u00e4r\u00e4htelyanalysaattori, t\u00e4ydellinen sarja\" 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\/fi\/product-category\/devices\/\" rel=\"tag\">Laitteet<\/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\/fi\/product\/balanset-1\/\" title=\"Kannettava tasapainotin ja t\u00e4rin\u00e4analysaattori Balanset-1A\">Kannettava tasapainotin &#038; t\u00e4rin\u00e4analysaattori 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> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/207?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/207?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/vibration-sensor\/\" title=\"T\u00e4rin\u00e4anturi\">\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:n t\u00e4rin\u00e4anturin l\u00e4hikuva\" 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\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/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\/fi\/product\/vibration-sensor\/\" title=\"T\u00e4rin\u00e4anturi\">T\u00e4rin\u00e4anturi<\/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> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/207?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/207?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optinen anturi (lasertakometri)\">\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=\"Optinen anturi (lasertakometri)\" 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\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/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\/fi\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optinen anturi (lasertakometri)\">Optinen anturi (lasertakometri)<\/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> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/207?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/207?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/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-roottorin tasapainotussarja: kantolaukku, monikanavainen signaalimuunnin, k\u00e4dess\u00e4 pidett\u00e4v\u00e4 analysaattori, magneettijalusta, t\u00e4rin\u00e4anturit ja kierretyt kaapelit.\" 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\/fi\/product-category\/devices\/\" rel=\"tag\">Laitteet<\/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\/fi\/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> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/207?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/207?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/magnet-stand\/\" title=\"Magneettinen jalusta 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=\"Magneettipohja.\" 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\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/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\/fi\/product\/magnet-stand\/\" title=\"Magneettinen jalusta Insize-60-kgf\">Magneettinen jalusta 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> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/207?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/207?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/reflective-tape\/\" title=\"Heijastava nauha\">\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=\"Heijastava nauha\" 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\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/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\/fi\/product\/reflective-tape\/\" title=\"Heijastava nauha\">Heijastava nauha<\/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> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/207?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/207?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynaaminen tasapainotin &quot;Balanset-1A&quot; 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-pakkauksen sis\u00e4lt\u00f6, jossa on liit\u00e4nt\u00e4yksikk\u00f6, anturit, kierroslukumittari ja lis\u00e4varusteet\" 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\/fi\/product-category\/devices\/\" rel=\"tag\">Laitteet<\/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\/fi\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynaaminen tasapainotin &quot;Balanset-1A&quot; OEM\">Dynaaminen tasapainotin \"Balanset-1A\" 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> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/207?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/207?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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>Takaisinvirtaus<\/strong> on virtausep\u00e4stabiilisuus, joka kehittyy sentrifugipumpuissa ja puhaltimissa niiden toimiessa virtausm\u00e4\u00e4rill\u00e4, jotka ovat selv\u00e4sti alle suunnittelupisteen \u2014 parhaan hy\u00f6tysuhteen pisteen eli BEP:n. Alhaisella virtauksella osa nesteest\u00e4 k\u00e4\u00e4nt\u00e4\u00e4 suuntansa, virtaa taaksep\u00e4in paineenpoistualueelta imusuuntaan ja muodostaa ep\u00e4vakaita kiertokuvia juoksupy\u00f6r\u00e4n tulo- tai l\u00e4ht\u00f6aukon kohdalle. Tuloksena on matalataajuinen <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/vibration\/\">t\u00e4rin\u00e4<\/a> pulsaatio (tyypillisesti 0,2\u20130,8\u00d7 k\u00e4yntinopeus ja siten <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/sub-synchronous\/\">alisynkroninen<\/a>), melu, hy\u00f6tysuhdeh\u00e4vi\u00f6t ja \u2014 vakavissa tapauksissa \u2014 vakava mekaaninen vaurio syklisest\u00e4 kuormituksesta, <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/cavitation\/\">kavitaatio<\/a> ja l\u00e4mm\u00f6st\u00e4. Se lukeutuu tuhoisimpiin tapoihin k\u00e4ytt\u00e4\u00e4 pumppua, ja sen v\u00e4ltt\u00e4minen on keskeist\u00e4 <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/centrifugal-pump-defects\/\">pumpun luotettavuus<\/a>.<\/p>\n<h2>1. M\u00e4\u00e4ritelm\u00e4: Pienen virtauksen hydraulinen ep\u00e4vakaus<\/h2>\n<p>Juoksupy\u00f6r\u00e4 on suunniteltu niin, ett\u00e4 neste astuu siipiin ja poistuu niist\u00e4 tietyss\u00e4 kulmassa BEP:ss\u00e4. Kun virtausta kuristetaan selv\u00e4sti alle sen, nopeukolmiot eiv\u00e4t en\u00e4\u00e4 vastaa siipien geometriaa: kohtauskulma menee pahasti v\u00e4\u00e4r\u00e4ksi, virtaus irtoaa siivist\u00e4 ja juoksupy\u00f6r\u00e4n jo energisoim\u00e4 neste purkautuu taaksep\u00e4in. N\u00e4m\u00e4 k\u00e4\u00e4ntyneet, py\u00f6rteilev\u00e4t virtaukset ovat kiertokuva. Koska ep\u00e4stabiili <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/hydraulic-forces\/\">hydrauliset voimat<\/a> ne tuottavat voi olla valtava, kiertokuva voi laukaista laakereiden vaurioitumisen, tiivisteen vahingoittumisen, akselin <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/fatigue\/\">v\u00e4symys<\/a> ja jopa juoksupy\u00f6r\u00e4n rakenteellisen murtumisen. Sen ymm\u00e4rt\u00e4minen ja est\u00e4minen on ratkaisevaa pumpun k\u00e4ytt\u00f6i\u00e4lle.<\/p>\n<h2>2. Kiertovirtatyypit<\/h2>\n<h3>Imuuudelleenjohto<\/h3>\n<p>Esiintyy juoksupy\u00f6r\u00e4n sis\u00e4\u00e4ntuloaukossa (imupuolella):<\/p>\n<ul>\n<li><strong>Mekanismi:<\/strong> pienell\u00e4 virtauksella juoksupy\u00f6r\u00e4n silm\u00e4\u00e4n saapuva neste tulee v\u00e4\u00e4r\u00e4ss\u00e4 virtauskulmassa.<\/li>\n<li><strong>Irtoaminen:<\/strong> virtaus irtoaa siipien imupinnoilta.<\/li>\n<li><strong>Reverse flow:<\/strong> irronnut neste pursuaa takaisin ulos juoksupy\u00f6r\u00e4n silm\u00e4st\u00e4.<\/li>\n<li><strong>Alku:<\/strong> tyypillisesti 60\u201370 % BEP-virtauksesta.<\/li>\n<li><strong>Sijainti:<\/strong> keskittynyt l\u00e4helle juoksupy\u00f6r\u00e4n laippoja.<\/li>\n<\/ul>\n<h3>Poistovirran uudelleenjohto<\/h3>\n<p>Esiintyy juoksupy\u00f6r\u00e4n poistoaukossa (ulostulossa):<\/p>\n<ul>\n<li><strong>Mekanismi:<\/strong> Korkeapaineinen purkausneste virtaa taaksep\u00e4in juoksupy\u00f6r\u00e4n keh\u00e4lle<\/li>\n<li><strong>Reitti:<\/strong> kulumisrenkaiden ja sivuv\u00e4lien kaltaisten v\u00e4lysrakojen kautta.<\/li>\n<li><strong>Sekoitus:<\/strong> kierr\u00e4tetty virta sekoittuu p\u00e4\u00e4virtaukseen aiheuttaen <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/flow-turbulence\/\">turbulenssi<\/a>.<\/li>\n<li><strong>Alku:<\/strong> tyypillisesti 40\u201360 % BEP-virtauksesta.<\/li>\n<li><strong>Vakavuus:<\/strong> Yleens\u00e4 vahingollisempi kuin imukierto<\/li>\n<\/ul>\n<h3>Yhdistetty uudelleenjohto<\/h3>\n<ul>\n<li>Sek\u00e4 imupuolen ett\u00e4 painepuolen kiertovirta esiintyv\u00e4t samanaikaisesti.<\/li>\n<li>Esiintyy hyvin pienill\u00e4 virtauksilla, alle noin 40 % BEP-virtauksesta.<\/li>\n<li>Tuottaa voimakkaimman v\u00e4r\u00e4htelyn ja suurimman vaurioitumisriskin.<\/li>\n<li>Sit\u00e4 tulee v\u00e4ltt\u00e4\u00e4 minimivirran suojan kautta.<\/li>\n<\/ul>\n<h2>3. T\u00e4rin\u00e4n tunnuskuva<\/h2>\n<h3>Tyypillinen kuvio<\/h3>\n<ul>\n<li><strong>Taajuus:<\/strong> ali-synkroninen, tyypillisesti 0,2\u20130,8\u00d7 k\u00e4yntinopeudesta.<\/li>\n<li><strong>Esimerkki:<\/strong> 1750 RPM:n pumppu, jossa 10\u201320 Hz pulsseja.<\/li>\n<li><strong>Amplitudi:<\/strong> voi saavuttaa 2\u20135-kertaisen normaalin k\u00e4ytt\u00f6v\u00e4r\u00e4htelyn.<\/li>\n<li><strong>Ep\u00e4vakaa:<\/strong> sek\u00e4 taajuus ett\u00e4 amplitudi vaihtelevat sen sijaan, ett\u00e4 pysyisiv\u00e4t vakioina.<\/li>\n<li><strong>Satunnaiskomponentti:<\/strong> turbulenssin aiheuttama laajakaistainen kasvu lis\u00e4\u00e4ntyy p\u00e4\u00e4lle.<\/li>\n<\/ul>\n<p>T\u00e4m\u00e4 vaelteleva, ei-synkroninen luonne on se, mik\u00e4 erottaa kiertovirran tasaisesta 1\u00d7-taajuudesta <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/unbalance\/\">ep\u00e4tasapaino<\/a> ja siipitaajuuden huipusta <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/vane-passing-frequency\/\">siiven ohitustaajuus<\/a>; sen havaitseminen edellytt\u00e4\u00e4 yleens\u00e4 molempien tarkastelua <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/spectrum\/\">spektri<\/a> ja <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/time-waveform\/\">aika-aaltomuoto<\/a>.<\/p>\n<h3>Virtausriippuvuus<\/h3>\n<ul>\n<li><strong>High flow:<\/strong> ei kierr\u00e4tyst\u00e4, alhainen v\u00e4r\u00e4htely.<\/li>\n<li><strong>Kohtalainen virtaus (80\u2013100 % BEP):<\/strong> minimaalinen kierr\u00e4tys, hyv\u00e4ksytt\u00e4v\u00e4 v\u00e4r\u00e4htely.<\/li>\n<li><strong>Alhainen virtaus (50\u201370 % BEP):<\/strong> imukirto alkaa ja v\u00e4r\u00e4htely kasvaa.<\/li>\n<li><strong>Eritt\u00e4in alhainen virtaus (&lt; 50 % BEP):<\/strong> voimakas kierto ja eritt\u00e4in korkea v\u00e4r\u00e4htely.<\/li>\n<li><strong>Sulkeminen:<\/strong> maksimaalinen kierto, maksimaalinen v\u00e4r\u00e4htely ja nopein vaurionopeus.<\/li>\n<\/ul>\n<h3>Lis\u00e4indikaattorit<\/h3>\n<ul>\n<li>A high <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/axial-vibration\/\">aksiaalinen v\u00e4r\u00e4htely<\/a> komponentti.<\/li>\n<li>Kohonnut melu \u2014 pauhu tai jyrin\u00e4.<\/li>\n<li>Suorituskyvyn heikkeneminen: nostokorkeus ja virtaus j\u00e4\u00e4v\u00e4t alle k\u00e4yr\u00e4n.<\/li>\n<li>L\u00e4mp\u00f6tilan nousu hydraulisista h\u00e4vi\u00f6ist\u00e4, jotka siirtyv\u00e4t l\u00e4mm\u00f6ksi nesteeseen.<\/li>\n<\/ul>\n<h2>4. Seuraukset ja vauriot<\/h2>\n<h3>V\u00e4litt\u00f6m\u00e4t vaikutukset<\/h3>\n<ul>\n<li><strong>Vakava v\u00e4rin\u00e4:<\/strong> voi ylitt\u00e4\u00e4 h\u00e4lytysrajat muutamassa minuutissa.<\/li>\n<li><strong>Melu:<\/strong> voimakas, turbulenttinen pauke.<\/li>\n<li><strong>Tehokkuuden menetys:<\/strong> korkea tehonkulutus suhteessa todelliseen toimitettuun virtaukseen.<\/li>\n<li><strong>L\u00e4mmitys:<\/strong> hydrauliset h\u00e4vi\u00f6t muuntuvat l\u00e4mm\u00f6ksi pes\u00e4ss\u00e4.<\/li>\n<\/ul>\n<h3>Mekaaninen vaurio<\/h3>\n<ul>\n<li><strong>Laakerin vika:<\/strong> korkeat syklisen kuormituksen vaikutukset kiihdytt\u00e4v\u00e4t laakerin <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/bearing-wear\/\">kuluminen<\/a>.<\/li>\n<li><strong>Seal damage:<\/strong> v\u00e4r\u00e4htely ja painevaihtelut tuhoavat <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/seal-defects\/\">mekaanisia tiivistyskennoja<\/a>.<\/li>\n<li><strong>Shaft fatigue:<\/strong> vuorotteleva taivutusj\u00e4nnitys ep\u00e4tasaisten hydraulisten voimien johdosta.<\/li>\n<li><strong>Juoksupy\u00f6r\u00e4n vaurio:<\/strong> vane <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/impeller-defects\/\">v\u00e4symisen aiheuttama s\u00e4r\u00f6ily<\/a> syklisen kuormituksen seurauksena.<\/li>\n<\/ul>\n<h3>Hydraulinen vaurio<\/h3>\n<ul>\n<li><strong>Kavitaatio:<\/strong> kiertovy\u00f6hykkeet ovat alttiita kavitaatiolle, kun paikallinen paine laskee alle h\u00f6yrynpaineen.<\/li>\n<li><strong>Eroosio:<\/strong> korkean nopeuden kierr\u00e4tysvirtaus kuluttaa pintoja.<\/li>\n<li><strong>Py\u00f6rrekavitointi:<\/strong> kierr\u00e4tysvy\u00f6hykkeiden py\u00f6rteet kavitoivat matalapaineisiss\u00e4 ytimiss\u00e4\u00e4n.<\/li>\n<\/ul>\n<h2>5. Havaitseminen ja diagnosointi<\/h2>\n<h3>T\u00e4rin\u00e4analyysi<\/h3>\n<ul>\n<li>Etsi alitaajuuskomponentteja 0,2\u20130,8\u00d7 -kaistalta.<\/li>\n<li>Testaa useilla virtausnopeuksilla k\u00e4ytt\u00e4ytymisen kartoittamiseksi.<\/li>\n<li>Tunnista virtausnopeus, jolla pulssit alkavat \u2014 kierron alkamispiste.<\/li>\n<li>Vertaa l\u00f6yd\u00f6ksi\u00e4 pumpun suoritusk\u00e4yr\u00e4n ennusteisiin.<\/li>\n<\/ul>\n<h3>Suorituskykytestaus<\/h3>\n<ul>\n<li>Mittaa todellinen nostokorkeus\u2013virtaus-k\u00e4yr\u00e4.<\/li>\n<li>Vertaa sit\u00e4 suunnitteluk\u00e4yr\u00e4\u00e4n.<\/li>\n<li>Matalan virtauksen aiheuttama poikkeama ilmaisee kierr\u00e4tyksen.<\/li>\n<li>K\u00e4yr\u00e4\u00e4 korkeampi tehonkulutus on vahvistava n\u00e4ytt\u00f6.<\/li>\n<\/ul>\n<h3>Akustinen monitorointi<\/h3>\n<ul>\n<li>Erillinen turbulentti pauhuava \u00e4\u00e4ni.<\/li>\n<li>Laajakaistaisen melun kasvu.<\/li>\n<li>Usein kuultavissa ja tuntuvissa pumpun kotelossa.<\/li>\n<\/ul>\n<h2>6. Ehk\u00e4isy ja lievent\u00e4minen<\/h2>\n<h3>Toimintastrategiat<\/h3>\n<h4>V\u00e4himm\u00e4isvirtauksen suojaus<\/h4>\n<ul>\n<li>Asenna automaattinen v\u00e4himm\u00e4isvirtauksen kierr\u00e4tysputki.<\/li>\n<li>Venttiili avautuu aina, kun virtaus laskee alle turvallisen minimin (tyypillisesti 60\u201370 % BEP:st\u00e4).<\/li>\n<li>Se kierr\u00e4tt\u00e4\u00e4 paineaukon virtauksen takaisin imuaukkoon tai s\u00e4ili\u00f6\u00f6n.<\/li>\n<li>T\u00e4m\u00e4 pit\u00e4\u00e4 pumpun poissa kierr\u00e4tysvy\u00f6hykkeelt\u00e4.<\/li>\n<\/ul>\n<h4>K\u00e4ytt\u00f6pisteen s\u00e4\u00e4t\u00f6<\/h4>\n<ul>\n<li>V\u00e4lt\u00e4 ajamista alle minimijatkuvan stabiilin virtauksen.<\/li>\n<li>K\u00e4yt\u00e4 taajuusmuuttajaa sovittamaan pumppu kysynt\u00e4\u00e4n hy\u00f6dynt\u00e4en <a href=\"https:\/\/vibromera.eu\/fi\/calculators\/affinity-laws-calculator\/\">affiniteettilait<\/a> BEP:n pit\u00e4miseksi eri k\u00e4ytt\u00f6alueilla.<\/li>\n<li>Suosi useita pienempi\u00e4 pumppuja yhden suuren sijaan paremman s\u00e4\u00e4t\u00f6varan saavuttamiseksi.<\/li>\n<li>Kytke rinnakkaiset pumput p\u00e4\u00e4lle ja pois p\u00e4\u00e4lt\u00e4 kysynn\u00e4n muuttuessa.<\/li>\n<\/ul>\n<h3>Suunnitteluratkaisut<\/h3>\n<ul>\n<li><strong>Indusoija:<\/strong> aksiaali-imuvaihe imuaukkovirtauksen vakauttamiseksi.<\/li>\n<li><strong>Matalan virtauksen pumpun juoksupy\u00f6r\u00e4t:<\/strong> erikoisrakenteet matalalle virtausnopeudelle tarkoitettuun k\u00e4ytt\u00f6\u00f6n.<\/li>\n<li><strong>Proper sizing:<\/strong> \u00e4l\u00e4 ylimitoita pumppua, mik\u00e4 pakottaa jatkuvaan matalavirtausk\u00e4ytt\u00f6\u00f6n.<\/li>\n<li><strong>Laajempi k\u00e4ytt\u00f6alue:<\/strong> valitse pumput, joilla on loivat k\u00e4yr\u00e4t ja jotka siet\u00e4v\u00e4t virtausvaihteluja.<\/li>\n<\/ul>\n<h3>J\u00e4rjestelm\u00e4suunnittelu<\/h3>\n<ul>\n<li>Suunnittele j\u00e4rjestelm\u00e4 niin, ett\u00e4 pumppu toimii l\u00e4hell\u00e4 BEP-pistett\u00e4.<\/li>\n<li>Varmista riitt\u00e4v\u00e4 NPSH-marginaali kavitaation rajoittamiseksi kiertoalueilla.<\/li>\n<li>Sijoita s\u00e4\u00e4t\u00f6venttiilit siten, ett\u00e4 imukanaviston kuristuminen on mahdollisimman v\u00e4h\u00e4ist\u00e4.<\/li>\n<li>Sis\u00e4llyt\u00e4 ohitus- tai kierr\u00e4tysj\u00e4rjestelm\u00e4t v\u00e4himm\u00e4isvirtauksen varmistamiseksi.<\/li>\n<\/ul>\n<h2>7. Teollisuusstandardit ja -ohjeet<\/h2>\n<h3>Minimijatkuva virtaus<\/h3>\n<ul>\n<li><strong>API 610:<\/strong> M\u00e4\u00e4ritt\u00e4\u00e4 keskipakopumppujen jatkuvan ja vakaan v\u00e4himm\u00e4isvirtauksen<\/li>\n<li><strong>Tyypilliset arvot:<\/strong> 60\u201370 % BEP-virtauksesta radiaalipumpuille, 70\u201380 % sekovirtausrakenteille.<\/li>\n<li><strong>L\u00e4mp\u00f6tilan huomiointi:<\/strong> v\u00e4himm\u00e4isvirtausta rajoittaa my\u00f6s se, kuinka suuren l\u00e4mp\u00f6tilannousun neste voi kest\u00e4\u00e4 matalalla virtauksella.<\/li>\n<\/ul>\n<h3>Suorituskykytestaus<\/h3>\n<ul>\n<li>Tehdastesteiss\u00e4 varmistetaan kiertovirtauksen alkamispiste.<\/li>\n<li>Kent\u00e4ll\u00e4 suoritettavat suorituskykytestit vahvistavat sen asennetussa j\u00e4rjestelm\u00e4ss\u00e4.<\/li>\n<li>Hyv\u00e4ksymiskriteerit m\u00e4\u00e4rittelev\u00e4t sallitun t\u00e4rin\u00e4n v\u00e4himm\u00e4isvirtauksella, joka usein viitataan <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/iso-20816-1\/\">ISO 20816<\/a> vakavuusalueet.<\/li>\n<\/ul>\n<p>Koska kiertovirtaus, ep\u00e4tasapaino, siiven ohituspulsaatio ja kavitaatio voivat kaikki lis\u00e4t\u00e4 pumpun t\u00e4rin\u00e4\u00e4, k\u00e4yt\u00e4nn\u00f6n diagnostinen askel on mitata spektri useilla eri virtausnopeuksilla ja tarkastella, mik\u00e4 komponentti seuraa virtausta. Kaksikanavainen kannettava t\u00e4rin\u00e4analysaattori, kuten <a href=\"https:\/\/vibromera.eu\/fi\/tuote\/balanset-1\/\">Balanset-1A<\/a> tallentaa alas-synkronisen pulsaation ja sen virtausriippuvuuden suoraan pumpulta, mik\u00e4 auttaa vahvistamaan kiertovirtauksen eik\u00e4 roottorivian \u2014 ja siin\u00e4 tapauksessa, kun kohonnut t\u00e4rin\u00e4 osoittautuu 1\u00d7-taajuudeksi <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/unbalance\/\">ep\u00e4tasapaino<\/a> juoksupy\u00f6r\u00e4ss\u00e4, antaa teknikolle mahdollisuuden tasapainottaa se paikallaan ilman pumpun purkamista. Ennen kuin aloitat, merkitse oleelliset taajuudet k\u00e4ytt\u00e4m\u00e4ll\u00e4 <a href=\"https:\/\/vibromera.eu\/fi\/calculators\/pump-cavitation-frequency\/\">pumpun kavitaatio-taajuuden estimaattori<\/a> ja <a href=\"https:\/\/vibromera.eu\/fi\/calculators\/blade-pass-frequency\/\">siipien ohitaajuuden laskuri<\/a> merkitse paikat, joissa kavitaatiokohinan ja siiven ohituspiikin tulisi esiinty\u00e4, jotta vaelteleva alas-synkroninen kiertovirtauskaista erottuu selke\u00e4sti.<\/p>\n<p>Kiertovirtaus on yksi vakavimmista k\u00e4ytt\u00f6olosuhteista, joita sentrifugipumppu voi kohdata. Sen tunnistettava alas-synkroninen t\u00e4rin\u00e4signaali, suuret pulsaatioamplitudit ja nopea mekaaninen vaurioitumiskyky tekev\u00e4t siit\u00e4 v\u00e4ltt\u00e4m\u00e4t\u00f6nt\u00e4 ymm\u00e4rt\u00e4\u00e4 alkamisolosuhteet, asentaa v\u00e4himm\u00e4isvirtaussuojaus ja v\u00e4ltt\u00e4\u00e4 jatkuvaa matalavirtausk\u00e4ytt\u00f6\u00e4 \u2014 n\u00e4m\u00e4 ovat avaimet pumpun luotettavuuteen ja pitk\u00e4ik\u00e4isyyteen teollisuusk\u00e4yt\u00f6ss\u00e4.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/\">\u2190 Takaisin p\u00e4\u00e4hakemistoon<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Opi pumppujen kierr\u00e4tyksest\u00e4, virtauksen suunnan k\u00e4\u00e4ntymisest\u00e4 ja ep\u00e4vakaudesta pienill\u00e4 virtausnopeuksilla, jotka aiheuttavat aliaksonnaisia v\u00e4r\u00e4htelypulsseja, tehokkuuden laskua ja mahdollisia vaurioita.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-207","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/207","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/207\/revisions"}],"predecessor-version":[{"id":101401,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/207\/revisions\/101401"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/media?parent=207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/categories?post=207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/tags?post=207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}