{"id":1174,"date":"2015-01-11T23:48:03","date_gmt":"2015-01-12T06:48:03","guid":{"rendered":"http:\/\/www.apexequipmentltd.com\/?page_id=1174"},"modified":"2015-11-09T23:09:04","modified_gmt":"2015-11-10T06:09:04","slug":"dickow-hot-oil-pump-sealless","status":"publish","type":"page","link":"https:\/\/www.apexequipmentltd.com\/?page_id=1174","title":{"rendered":"Dickow Hot Oil Pump Sealless"},"content":{"rendered":"<div class=\"row\">\n<aside class=\"col-sm-6\"><strong>PUMP CONCEPTS<\/strong><\/p>\n<p align=\"justify\">Low-cost pump concepts normally use standard foot-mounted ductile iron volute casings with a standard single mechanical seal that is separated from the hydraulic parts by an air-cooled intermediate casing. The temperature limit is typically 350\u00b0C. However, in applications above 320\u00b0C this standard foot-mounted casing can be overstressed and deformed by typically unknown forces and moments generated by the piping system during heating of the plan. For temperatures above 320\u00b0C (up to 400\u00b0C) a pumping concept based on the chemical standard pump hydraulics is often a better solution. The pump casings can be equipped with centerline mounting, the material can be improved to cast steel and different sealing systems can be used. When cast steel is used, it is also possible to use welded drain pipes which are getting more common nowadays.<\/p>\n<p><strong>SEALING SYSTEMS<\/strong><\/p>\n<p align=\"justify\">Especially for low viscosity and high temperature synthetic oils (e.g. Dowtherm or Diphyl), sophisticated tandem seal arrangements or magnetic couplings are required. In Figure 3, an ideal tandem seal arrangement is shown. In order to minimize the influence of solids (such as cracking particles) on the seal lifetime, the seal face combination is SiC against SiC (silicium carbide is a very hard ceramic material), the bel- lows are rotating in order to prevent clogging and the seal chamber is designed as large as possible to prevent the accumulation of solids. The two seals (on the product and atmosphere side) are lubricated by a pressureless aircooled thermosiphon vessel which also prevents damage to the seals, even during<br \/>\ndry running conditions. A constant lubrication and circulation flow is generated by a pump ring. Failure of the product<br \/>\nseal can be detected by a level switch in the vessel and the atmosphere seal will prevent leakage. For applications above 350\u00b0C, it is possible to have additional water cooling with a cooling coil inside the thermosiphon vessel.<\/p>\n<\/aside>\n<aside class=\"col-sm-1\"><\/aside>\n<aside class=\"col-sm-5\">\n<center><img decoding=\"async\" src=\"http:\/\/www.apexequipmentltd.com\/wp-content\/uploads\/2015\/11\/Dickow-Hot-Oil-Pump-Sealless.png\"><\/center><\/p>\n<h3>Request More Information<\/h3>\n<p>\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f1547-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"1547\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/index.php?rest_route=%2Fwp%2Fv2%2Fpages%2F1174#wpcf7-f1547-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"1547\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.5\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f1547-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/><input type=\"hidden\" name=\"_wpcf7dtx_version\" value=\"5.0.5\" \/><input type=\"hidden\" name=\"_wpcf7_recaptcha_response\" value=\"\" \/>\n<\/fieldset>\n<div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<div class=\"row\">\n\t<aside class=\"col-sm-3\">\n\t\t<p><label for=\"fname\">Name<span class=\"text-danger\">*<\/span><\/label>\n\t\t<\/p>\n\t<\/aside>\n\t<aside class=\"col-sm-9\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"fname\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" id=\"fname\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"fname\" \/><\/span>\n\t\t<\/p>\n\t<\/aside>\n<\/div>\n<div class=\"row\">\n\t<aside class=\"col-sm-3\">\n\t\t<p><label for=\"email\">Email <span class=\"text-danger\">*<\/span><\/label>\n\t\t<\/p>\n\t<\/aside>\n\t<aside class=\"col-sm-9\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" id=\"email\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"email\" name=\"email\" \/><\/span>\n\t\t<\/p>\n\t<\/aside>\n<\/div>\n<div class=\"row\">\n\t<aside class=\"col-sm-3\">\n\t\t<p><label for=\"email\">Product Name<\/label>\n\t\t<\/p>\n\t<\/aside>\n\t<aside class=\"col-sm-9\">\n\t\t<p><span class=\"wpcf7-form-control-wrap productname\" data-name=\"productname\"><input type=\"text\" name=\"productname\" class=\"wpcf7-form-control wpcf7-text wpcf7dtx wpcf7dtx-text\" aria-invalid=\"false\"><\/span>\n\t\t<\/p>\n\t<\/aside>\n<\/div>\n<div class=\"row\">\n\t<aside class=\"col-sm-3\">\n\t\t<p><label for=\"msg\">Message <span class=\"text-danger\">*<\/span><\/label>\n\t\t<\/p>\n\t<\/aside>\n\t<aside class=\"col-sm-9\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"msg\"><textarea cols=\"40\" rows=\"3\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea wpcf7-validates-as-required\" id=\"msg\" aria-required=\"true\" aria-invalid=\"false\" name=\"msg\"><\/textarea><\/span>\n\t\t<\/p>\n\t<\/aside>\n<\/div>\n<div class=\"row\">\n\t<aside class=\"col-sm-3\">\n\t\t<p><label for=\"captcha\">Security Code<span class=\"text-danger\">*<\/span><\/label>\n\t\t<\/p>\n\t<\/aside>\n\t<aside class=\"col-sm-2\">\n\t\t<p><input type=\"hidden\" name=\"_wpcf7_captcha_challenge_captcha\" value=\"2116959774\" \/><img loading=\"lazy\" decoding=\"async\" class=\"wpcf7-form-control wpcf7-captchac wpcf7-captcha-captcha\" width=\"84\" height=\"28\" alt=\"captcha\" src=\"https:\/\/www.apexequipmentltd.com\/wp-content\/uploads\/wpcf7_captcha\/2116959774.png\" \/>\n\t\t<\/p>\n\t<\/aside>\n\t<div class=\"row\">\n\t\t<aside class=\"col-sm-3 col-xs-6\">\n\t\t\t<p><div class=\"cf7-cf-turnstile\" style=\"margin-top: 0px; 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height:500px; border: none;\" scrolling=\"no\"><\/iframe>\n<p class=\"gde-text\"><a href=\"http:\/\/www.apexequipmentltd.com\/wp-content\/uploads\/2015\/01\/Dickow-Hot-Oil-Pump-Sealless-Arrangement.pdf\" class=\"gde-link\">Download (PDF, 442KB)<\/a><\/p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>PUMP CONCEPTS Low-cost pump concepts normally use standard foot-mounted ductile iron volute casings with a standard single mechanical seal that is separated from the hydraulic parts by an air-cooled intermediate casing. The temperature limit is typically 350\u00b0C. However, in applications above 320\u00b0C this standard foot-mounted casing can be overstressed and deformed by typically unknown forces [&hellip;]<\/p>\n","protected":false},"author":1104,"featured_media":0,"parent":1136,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"ngg_post_thumbnail":0,"footnotes":""},"class_list":["post-1174","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Dickow Hot Oil Pump Sealless | APEX Equipment<\/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.apexequipmentltd.com\/?page_id=1174\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dickow Hot Oil Pump Sealless | APEX Equipment\" \/>\n<meta property=\"og:description\" content=\"PUMP CONCEPTS Low-cost pump concepts normally use standard foot-mounted ductile iron volute casings with a standard single mechanical seal that is separated from the hydraulic parts by an air-cooled intermediate casing. 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The temperature limit is typically 350\u00b0C. However, in applications above 320\u00b0C this standard foot-mounted casing can be overstressed and deformed by typically unknown forces [&hellip;]","og_url":"https:\/\/www.apexequipmentltd.com\/?page_id=1174","og_site_name":"APEX Equipment","article_publisher":"https:\/\/www.facebook.com\/pages\/APEX-Equipment-Ltd\/525759447558765","article_modified_time":"2015-11-10T06:09:04+00:00","og_image":[{"url":"http:\/\/www.apexequipmentltd.com\/wp-content\/uploads\/2015\/11\/Dickow-Hot-Oil-Pump-Sealless.png","type":"","width":"","height":""}],"twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.apexequipmentltd.com\/?page_id=1174","url":"https:\/\/www.apexequipmentltd.com\/?page_id=1174","name":"Dickow Hot Oil Pump Sealless | APEX Equipment","isPartOf":{"@id":"https:\/\/www.apexequipmentltd.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.apexequipmentltd.com\/?page_id=1174#primaryimage"},"image":{"@id":"https:\/\/www.apexequipmentltd.com\/?page_id=1174#primaryimage"},"thumbnailUrl":"http:\/\/www.apexequipmentltd.com\/wp-content\/uploads\/2015\/11\/Dickow-Hot-Oil-Pump-Sealless.png","datePublished":"2015-01-12T06:48:03+00:00","dateModified":"2015-11-10T06:09:04+00:00","breadcrumb":{"@id":"https:\/\/www.apexequipmentltd.com\/?page_id=1174#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.apexequipmentltd.com\/?page_id=1174"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.apexequipmentltd.com\/?page_id=1174#primaryimage","url":"https:\/\/www.apexequipmentltd.com\/wp-content\/uploads\/2015\/11\/Dickow-Hot-Oil-Pump-Sealless.png","contentUrl":"https:\/\/www.apexequipmentltd.com\/wp-content\/uploads\/2015\/11\/Dickow-Hot-Oil-Pump-Sealless.png","width":270,"height":172},{"@type":"BreadcrumbList","@id":"https:\/\/www.apexequipmentltd.com\/?page_id=1174#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.apexequipmentltd.com\/"},{"@type":"ListItem","position":2,"name":"Sealless Pumps","item":"https:\/\/www.apexequipmentltd.com\/?page_id=1136"},{"@type":"ListItem","position":3,"name":"Dickow Hot Oil Pump Sealless"}]},{"@type":"WebSite","@id":"https:\/\/www.apexequipmentltd.com\/#website","url":"https:\/\/www.apexequipmentltd.com\/","name":"APEX Equipment","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.apexequipmentltd.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/www.apexequipmentltd.com\/index.php?rest_route=\/wp\/v2\/pages\/1174","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.apexequipmentltd.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.apexequipmentltd.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.apexequipmentltd.com\/index.php?rest_route=\/wp\/v2\/users\/1104"}],"replies":[{"embeddable":true,"href":"https:\/\/www.apexequipmentltd.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1174"}],"version-history":[{"count":3,"href":"https:\/\/www.apexequipmentltd.com\/index.php?rest_route=\/wp\/v2\/pages\/1174\/revisions"}],"predecessor-version":[{"id":5791,"href":"https:\/\/www.apexequipmentltd.com\/index.php?rest_route=\/wp\/v2\/pages\/1174\/revisions\/5791"}],"up":[{"embeddable":true,"href":"https:\/\/www.apexequipmentltd.com\/index.php?rest_route=\/wp\/v2\/pages\/1136"}],"wp:attachment":[{"href":"https:\/\/www.apexequipmentltd.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}