{"id":54356,"date":"2025-08-28T15:08:50","date_gmt":"2025-08-28T07:08:50","guid":{"rendered":"https:\/\/ancor.biz\/?post_type=product&#038;p=54356"},"modified":"2025-09-23T15:21:03","modified_gmt":"2025-09-23T07:21:03","slug":"ue-j21k-series-differential-pressure-switch","status":"publish","type":"product","link":"https:\/\/ancor.biz\/index.php\/product\/ue-j21k-series-differential-pressure-switch\/","title":{"rendered":"UE J21K Series Differential Pressure Switch"},"content":{"rendered":"<h1 class=\"vc_custom_heading vc_do_custom_heading mt-md\">J21K Series Differential Pressure Switch<\/h1>\n<p>&nbsp;<\/p>\n<div class=\"wpb_text_column wpb_content_element\">\n<div class=\"wpb_wrapper\">\n<div class=\"wpb_text_column wpb_content_element\">\n<div class=\"wpb_wrapper\">\n<div class=\"wpb_text_column wpb_content_element\">\n<div class=\"wpb_wrapper\">\n<div class=\"wpb_text_column wpb_content_element\">\n<div class=\"wpb_wrapper\">\n<div class=\"wpb_text_column wpb_content_element\">\n<div class=\"wpb_text_column wpb_content_element\"><\/div>\n<div class=\"wpb_text_column wpb_content_element\">\n<div class=\"wpb_wrapper\">\n<div class=\"wpb_text_column wpb_content_element\">\n<div class=\"wpb_wrapper\">\n<div class=\"wpb_text_column wpb_content_element\">\n<div class=\"wpb_wrapper\">\n<ul>\n<li>Welded bellows sensor provides leak-free protection<\/li>\n<li>Precise on-off control through adjustable deadband option<\/li>\n<li>Application versatility achieved through a variety of ranges and microswitches<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<\/div>\n<\/div>\n<div class=\"wpb_text_column wpb_content_element\">\n<div class=\"wpb_wrapper\">\n<h4 class=\"western\">Robust, NEMA 4X differential pressure switch<\/h4>\n<p>The J21K Series is simple to install and operate for alarm, safety and emergency shutdown applications requiring a higher switch sensitivity. It monitors the difference between two system pressures or vacuum using sealed, opposing bellows sensors. As an electromechanical switch, it can safely operate independently of the control system and switch reliably when called upon, free from potential communication errors or cyber concerns.<\/p>\n<p>Typical applications that utilize the J21K Series include proof of flow, filter monitoring, vacuum pumps, chillers, and compressors.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>J21K Series Differential Pressure Switch &nbsp; Welded bellows sensor provides leak-free protection Precise on-off control through adjustable deadband option Application versatility achieved through a variety of ranges and microswitches &nbsp; Robust, NEMA 4X differential pressure switch The J21K Series is simple to install and operate for alarm, safety and emergency shutdown applications requiring a higher &#8230; <a title=\"UE J21K Series Differential Pressure Switch\" class=\"read-more\" href=\"https:\/\/ancor.biz\/index.php\/product\/ue-j21k-series-differential-pressure-switch\/\" aria-label=\"More on UE J21K Series Differential Pressure Switch\">Read more<\/a><\/p>\n","protected":false},"featured_media":54358,"template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"spay_email":""},"class_list":["post-54356","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-brand","product_cat-switch-vacuum","product_cat-pressure-switch-united-electric-controls","product_cat-switch","product_cat-united-electric-controls","product_cat-united-electric-controls-switch-vacuum","product_tag-j21k-127","product_tag-j21k-140","product_tag-j21k-150","product_tag-j21k-16020","product_tag-j21k-16021","product_tag-j21k-232","product_tag-j21k-254","product_tag-j21k-357","product_tag-j21k-s127b","product_tag-j21k-s140b","product_tag-j21k-s150b","product_tag-ue-j21k-series-differential-pressure-switch","sales-flash-overlay","woocommerce-text-align-center","woocommerce-image-align-center","do-quantity-buttons"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.3 - 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