{"id":2201,"date":"2013-02-01T21:02:40","date_gmt":"2013-02-02T04:02:40","guid":{"rendered":"http:\/\/oilfield.gnsolidscontrol.com\/?p=2201"},"modified":"2013-02-01T21:03:28","modified_gmt":"2013-02-02T04:03:28","slug":"positive-displacement-pump-for-sale","status":"publish","type":"post","link":"http:\/\/oilfield.gnsolidscontrol.com\/index.php\/2013\/02\/01\/positive-displacement-pump-for-sale\/","title":{"rendered":"Positive displacement pump for sale"},"content":{"rendered":"<h3 align=\"left\">What is the difference in operation between positive displacement pump and <a title=\"Bomba Centrifuga\" href=\"http:\/\/www.gnsolidsamerica.com\/sand-pump\/\" target=\"_blank\">centrifugal pump<\/a>?<\/h3>\n<p align=\"left\"><a title=\"positive displacement pump\" href=\"http:\/\/oilfield.gnsolidscontrol.com\/positive-displacement-pump-for-decanter-centrifuge\/\" target=\"_blank\">Positive Displacement Pumps<\/a>will not p roduce the same flow at a given speed (RPM) no matter the discharge pressure.<\/p>\n<figure id=\"attachment_2202\" aria-describedby=\"caption-attachment-2202\" style=\"width: 300px\" class=\"wp-caption alignright\"><a href=\"http:\/\/oilfield.gnsolidscontrol.com\/wp-content\/uploads\/2013\/02\/positive-displacement-pump.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-2202\" title=\"positive displacement pump\" src=\"http:\/\/oilfield.gnsolidscontrol.com\/wp-content\/uploads\/2013\/02\/positive-displacement-pump-300x129.jpg\" alt=\"positive displacement pump\" width=\"300\" height=\"129\" \/><\/a><figcaption id=\"caption-attachment-2202\" class=\"wp-caption-text\">positive displacement pump<\/figcaption><\/figure>\n<p align=\"left\">Positive Displacement Pump must not be operated against a closed valve on the discharge side of the pump because it has no shut-off head like Centrifugal Pumps. A Positive Displacement Pump operating against a closed discharge valve, will continue to produce flow until the pressure in the discharge line are increased until the line bursts or the pump is severely damaged &#8211; or both.<\/p>\n<h3 align=\"left\">The positive displacement pump can be applied as<\/h3>\n<ul>\n<li>rotary lobe pump<\/li>\n<li>progressing cavity pump<\/li>\n<li>rotary gear pump<\/li>\n<li>piston pump<\/li>\n<li>diaphragm pump<\/li>\n<li><a title=\"screw pump\" href=\"http:\/\/oilfield.gnsolidscontrol.com\/drilling-cuttings-management-system-for-sale\/\" target=\"_blank\">screw pump<\/a><\/li>\n<\/ul>\n<p align=\"left\">When positive displacement pumps serve as a screw pump for feeding drilling fluids decanter centrifuge, when you change the frequency of the main motor through the VFD control panel, the treating capacity of <a title=\"drill fluids decanter centrifuge\" href=\"http:\/\/www.gnsolidscontrol.com\/decanting-centrifuge\/\" target=\"_blank\">decanter centrifuge<\/a> will change, so the flow rate need to be lessed.<\/p>\n<h3 align=\"left\"><!--more-->You can change the flow rate of positive displacement pump by 2 ways:<\/h3>\n<p align=\"left\">1 change the frequency of pump motor<\/p>\n<p align=\"left\">2 install bypass hose on its discharge end<\/p>\n<p>GN provide world famous <a title=\"Nemo pump\" href=\"http:\/\/oilfield.gnsolidscontrol.com\/centrifuge-mud-tank\/\" target=\"_blank\">Nemo pump<\/a> as screw pump to feed for our decanter centrifuge, except for positive displacement pumps, we also provide centrifugal pumps.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is the difference in operation between positive displacement pump and centrifugal pump? Positive Displacement Pumpswill not p roduce the same flow at a given speed (RPM) no matter the discharge pressure. Positive Displacement Pump must not be operated against a closed valve on the discharge side of the pump because it has no shut-off &hellip; <a href=\"http:\/\/oilfield.gnsolidscontrol.com\/index.php\/2013\/02\/01\/positive-displacement-pump-for-sale\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Positive displacement pump for sale&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-2201","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"http:\/\/oilfield.gnsolidscontrol.com\/index.php\/wp-json\/wp\/v2\/posts\/2201","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/oilfield.gnsolidscontrol.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/oilfield.gnsolidscontrol.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/oilfield.gnsolidscontrol.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/oilfield.gnsolidscontrol.com\/index.php\/wp-json\/wp\/v2\/comments?post=2201"}],"version-history":[{"count":0,"href":"http:\/\/oilfield.gnsolidscontrol.com\/index.php\/wp-json\/wp\/v2\/posts\/2201\/revisions"}],"wp:attachment":[{"href":"http:\/\/oilfield.gnsolidscontrol.com\/index.php\/wp-json\/wp\/v2\/media?parent=2201"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/oilfield.gnsolidscontrol.com\/index.php\/wp-json\/wp\/v2\/categories?post=2201"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/oilfield.gnsolidscontrol.com\/index.php\/wp-json\/wp\/v2\/tags?post=2201"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}