{"id":15972,"date":"2017-07-25T00:00:00","date_gmt":"2017-07-25T00:00:00","guid":{"rendered":"https:\/\/www.calpeda.com\/2023\/09\/27\/pompe-periferiche\/"},"modified":"2023-10-06T12:46:40","modified_gmt":"2023-10-06T12:46:40","slug":"pompe-periferiche","status":"publish","type":"post","link":"https:\/\/www.calpeda.com\/it\/2017\/07\/25\/pompe-periferiche\/","title":{"rendered":"Pompe periferiche"},"content":{"rendered":"

Le elettropompe periferiche, in generale, possono essere considerate una categoria intermedia tra le pompe centrifughe e quelle volumetriche. Mentre nelle prime all’aumentare della prevalenza si evidenzia una diminuzione di portata, nelle seconde, la portata non viene influenzata dalla pressione. La curva delle pompe periferiche ha invece un andamento a met\u00e0 tra queste due categorie di pompe.<\/p>\n

Le pompe periferiche<\/a>, pertanto, sono ideali per le esigenze che le pompe centrifughe piccole non arrivano a coprire, ovvero nei casi in cui si ha la necessit\u00e0 di garantire prevalenze elevate a fronte di una bassa portata.<\/p>\n

I campi di applicazione vanno dall’irrigazione alla pressurizzazione, dall’approvvigionamento di acqua ai lavaggi.<\/p>\n

 <\/p>\n

\"image_CT_03\"<\/a><\/p>\n

[accordion]\nIl funzionamento
\n[\/accordion]<\/h4>\n

 <\/p>\n

Le pompe periferiche funzionano attraverso una girante caratterizzata da un gran numero di piccole pale radiali a doppio flusso (a doppio ingresso) disposte alla sua periferia. \u00a0Le forze centrifughe nella girante generano un flusso circolatorio tra la girante e il canale del corpo pompa. La velocit\u00e0 periferica del fluido e della girante sono praticamente le stesse, mentre \u00e8 decisamente pi\u00f9 bassa quella del fluido nel canale del corpo pompa. Pertanto, il fluido ritorna dal canale del corpo pompa alla girante compiendo un percorso a spirale che si ripete diverse volte lungo il perimetro. Maggiori sono le volte che questi “vortici” si verificano, maggiore \u00e8 il trasferimento di energia e di conseguenza la pressione generata. Il numero di spirali aumenta quando la portata \u00e8 ridotta, quindi il trasferimento di energia e la potenza assorbita sono maggiori a carichi parziali.<\/p>\n

 <\/p>\n

\"periferiche\"<\/a><\/p>\n

 <\/p>\n

[accordion]\nOsservazioni
\n[\/accordion]<\/h4>\n

La caratteristica principale delle pompe periferiche \u00e8 la capacit\u00e0 di garantire pressioni elevate a potenze basse. La girante viaggia molto vicina alla voluta della pompa e la differenza di pressione che si crea tra ingresso e uscita \u00e8 notevole. Pertanto \u00e8 insita nelle pompe periferiche una certa rumorosit\u00e0, legata alle dinamiche del suo funzionamento. A fronte di questo aspetto, le pompe periferiche sono per\u00f2 caratterizzate da costi meno elevati rispetto alle pompe centrifughe e da una grande capacit\u00e0 di autoadescamento.<\/p>\n

 <\/p>\n

\"curve_CT\"<\/a><\/p>\n

<\/h4>\n

[accordion]\nModalit\u00e0 di impiego
\n[\/accordion]<\/h4>\n

Le pompe possono essere utilizzate per liquidi puliti, anche a temperature elevate (olio fino a 200\u00b0C)<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Le elettropompe periferiche, in generale, possono essere considerate una categoria intermedia tra le pompe centrifughe e quelle volumetriche. Mentre nelle prime all’aumentare della prevalenza si evidenzia una diminuzione di portata,…<\/p>\n","protected":false},"author":1,"featured_media":15753,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1057],"tags":[1021,815],"class_list":["post-15972","post","type-post","status-publish","format-standard","has-post-thumbnail","category-news","tag-calpeda-it","tag-pompe-periferiche"],"yoast_head":"\nPompe periferiche - Calpeda<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.calpeda.com\/it\/2017\/07\/25\/pompe-periferiche\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pompe periferiche - Calpeda\" \/>\n<meta property=\"og:description\" content=\"Le elettropompe periferiche, in generale, possono essere considerate una categoria intermedia tra le pompe centrifughe e quelle volumetriche. 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