{"id":14994,"date":"2025-07-28T14:56:39","date_gmt":"2025-07-28T06:56:39","guid":{"rendered":"https:\/\/www.lneya.com\/?p=14994"},"modified":"2025-12-03T15:55:18","modified_gmt":"2025-12-03T07:55:18","slug":"what-is-an-open-loop-circuit-in-chiller","status":"publish","type":"post","link":"https:\/\/tw.lneya.com\/de\/blog\/what-is-an-open-loop-circuit-in-chiller.html","title":{"rendered":"Was ist ein Offener Kreislauf in einem Chiller?"},"content":{"rendered":"\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined\" id=\"\" style=\"background-color:#ffffff;\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"max-width:1025px;\">\n<div class=\"wp-block-column block_layout_in is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<style>.wp-block-kadence-advancedheading.kt-adv-heading14994_bd5599-03, .wp-block-kadence-advancedheading.kt-adv-heading14994_bd5599-03[data-kb-block=\"kb-adv-heading14994_bd5599-03\"]{text-align:center;font-size:36px;font-style:normal;font-family:Arial, Helvetica, sans-serif;text-transform:none;letter-spacing:0.2px;}.wp-block-kadence-advancedheading.kt-adv-heading14994_bd5599-03 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading14994_bd5599-03[data-kb-block=\"kb-adv-heading14994_bd5599-03\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading14994_bd5599-03 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading14994_bd5599-03[data-kb-block=\"kb-adv-heading14994_bd5599-03\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h1 class=\"kt-adv-heading14994_bd5599-03 wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading14994_bd5599-03\">What is an Open Loop Circuit&nbsp;in&nbsp;Chiller<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<style>.wp-block-kadence-advancedheading.kt-adv-heading14994_208172-e6, .wp-block-kadence-advancedheading.kt-adv-heading14994_208172-e6[data-kb-block=\"kb-adv-heading14994_208172-e6\"]{font-size:18px;font-weight:400;font-style:normal;font-family:Arial, Helvetica, sans-serif;letter-spacing:0.2px;color:#4a4a4a;}.wp-block-kadence-advancedheading.kt-adv-heading14994_208172-e6 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading14994_208172-e6[data-kb-block=\"kb-adv-heading14994_208172-e6\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading14994_208172-e6 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading14994_208172-e6[data-kb-block=\"kb-adv-heading14994_208172-e6\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<p class=\"kt-adv-heading14994_208172-e6 wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading14994_208172-e6\">The loop in a chiller system refers to the complete circulation path of the <a href=\"https:\/\/tw.lneya.com\/blog\/chiller-fluids-water-glycol-oil-and-more.html\">coolant<\/a>, from the outlet of the evaporator through the equipment and back to the evaporator inlet. This path includes the evaporator of the chiller, the equipment to be cooled, the process and the pipeline. Open-loop and closed-loop configurations are two common types of cooling circuits. This article explains what an open loop is.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<style>.wp-block-kadence-advancedheading.kt-adv-heading14994_fbb76e-15, .wp-block-kadence-advancedheading.kt-adv-heading14994_fbb76e-15[data-kb-block=\"kb-adv-heading14994_fbb76e-15\"]{text-align:left;font-size:30px;font-weight:400;font-style:normal;font-family:Arial, Helvetica, sans-serif;color:#4a4a4a;}.wp-block-kadence-advancedheading.kt-adv-heading14994_fbb76e-15 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading14994_fbb76e-15[data-kb-block=\"kb-adv-heading14994_fbb76e-15\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading14994_fbb76e-15 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading14994_fbb76e-15[data-kb-block=\"kb-adv-heading14994_fbb76e-15\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2 class=\"kt-adv-heading14994_fbb76e-15 wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading14994_fbb76e-15\"><strong>What is an open loop&nbsp;circuit?<\/strong><\/h2>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-themecolor-1-color has-alpha-channel-opacity has-themecolor-1-background-color has-background is-style-default\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<style>.wp-block-kadence-advancedheading.kt-adv-heading14994_05c189-ae, .wp-block-kadence-advancedheading.kt-adv-heading14994_05c189-ae[data-kb-block=\"kb-adv-heading14994_05c189-ae\"]{font-size:18px;font-weight:400;font-style:normal;font-family:Arial, Helvetica, sans-serif;letter-spacing:0.2px;color:#4a4a4a;}.wp-block-kadence-advancedheading.kt-adv-heading14994_05c189-ae mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading14994_05c189-ae[data-kb-block=\"kb-adv-heading14994_05c189-ae\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading14994_05c189-ae img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading14994_05c189-ae[data-kb-block=\"kb-adv-heading14994_05c189-ae\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<p class=\"kt-adv-heading14994_05c189-ae wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading14994_05c189-ae\">An open cooling loop means that the coolant will have direct contact with the outside world at some point during the circulation process. The water tank or reservoir in the loop is open to the atmosphere, allowing direct contact between the coolant and ambient air.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div>\n<\/div><div class=\"layout_badh\"><\/div><\/section>\n\n\n\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined\" id=\"\" style=\"background-color:#ffffff;\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"max-width:1025px;\">\n<div class=\"wp-block-column block_layout_in is-layout-flow wp-block-column-is-layout-flow\"><style>.wp-block-kadence-advancedheading.kt-adv-heading14994_abdb59-bd, .wp-block-kadence-advancedheading.kt-adv-heading14994_abdb59-bd[data-kb-block=\"kb-adv-heading14994_abdb59-bd\"]{text-align:left;font-size:30px;font-weight:400;font-style:normal;font-family:Arial, Helvetica, sans-serif;color:#4a4a4a;}.wp-block-kadence-advancedheading.kt-adv-heading14994_abdb59-bd mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading14994_abdb59-bd[data-kb-block=\"kb-adv-heading14994_abdb59-bd\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading14994_abdb59-bd img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading14994_abdb59-bd[data-kb-block=\"kb-adv-heading14994_abdb59-bd\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2 class=\"kt-adv-heading14994_abdb59-bd wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading14994_abdb59-bd\"><strong>Structure of an open loop circuit<\/strong><\/h2>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-themecolor-1-color has-alpha-channel-opacity has-themecolor-1-background-color has-background is-style-default\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<style>.wp-block-kadence-advancedheading.kt-adv-heading14994_30f25d-9c, .wp-block-kadence-advancedheading.kt-adv-heading14994_30f25d-9c[data-kb-block=\"kb-adv-heading14994_30f25d-9c\"]{font-size:18px;font-weight:400;font-style:normal;font-family:Arial, Helvetica, sans-serif;letter-spacing:0.2px;color:#4a4a4a;}.wp-block-kadence-advancedheading.kt-adv-heading14994_30f25d-9c mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading14994_30f25d-9c[data-kb-block=\"kb-adv-heading14994_30f25d-9c\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading14994_30f25d-9c img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading14994_30f25d-9c[data-kb-block=\"kb-adv-heading14994_30f25d-9c\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<p class=\"kt-adv-heading14994_30f25d-9c wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading14994_30f25d-9c\">A typical open loop consists of a chiller, an open reservoir, a water pump, and the target equipment or process to be cooled. The evaporator of the chiller system evaporates the refrigerant and absorbs heat to cool the coolant. As an open system, the reservoir stores heated coolant and is in direct contact with the air. The function of the circulating water pump is to transport the coolant from the reservoir to the equipment or process that needs to be cooled.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div>\n<\/div><div class=\"layout_badh\"><\/div><\/section>\n\n\n\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined\" id=\"\" style=\"background-color:#ffffff;\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"max-width:1025px;\">\n<div class=\"wp-block-column block_layout_in is-layout-flow wp-block-column-is-layout-flow\"><style>.wp-block-kadence-advancedheading.kt-adv-heading14994_b73166-3c, .wp-block-kadence-advancedheading.kt-adv-heading14994_b73166-3c[data-kb-block=\"kb-adv-heading14994_b73166-3c\"]{text-align:left;font-size:30px;font-weight:400;font-style:normal;font-family:Arial, Helvetica, sans-serif;color:#4a4a4a;}.wp-block-kadence-advancedheading.kt-adv-heading14994_b73166-3c mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading14994_b73166-3c[data-kb-block=\"kb-adv-heading14994_b73166-3c\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading14994_b73166-3c img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading14994_b73166-3c[data-kb-block=\"kb-adv-heading14994_b73166-3c\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2 class=\"kt-adv-heading14994_b73166-3c wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading14994_b73166-3c\"><strong>How does an open loop circuit&nbsp;cooling system work?<\/strong><\/h2>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-themecolor-1-color has-alpha-channel-opacity has-themecolor-1-background-color has-background is-style-default\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<style>.wp-block-kadence-advancedheading.kt-adv-heading14994_15b59a-e2, .wp-block-kadence-advancedheading.kt-adv-heading14994_15b59a-e2[data-kb-block=\"kb-adv-heading14994_15b59a-e2\"]{font-size:18px;font-weight:400;font-style:normal;font-family:Arial, Helvetica, sans-serif;letter-spacing:0.2px;color:#4a4a4a;}.wp-block-kadence-advancedheading.kt-adv-heading14994_15b59a-e2 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading14994_15b59a-e2[data-kb-block=\"kb-adv-heading14994_15b59a-e2\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading14994_15b59a-e2 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading14994_15b59a-e2[data-kb-block=\"kb-adv-heading14994_15b59a-e2\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<p class=\"kt-adv-heading14994_15b59a-e2 wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading14994_15b59a-e2\">After the refrigerant in the <a href=\"https:\/\/tw.lneya.com\/industrial-chillers\">industrial chiller<\/a> evaporates at the evaporator, it absorbs the heat of the coolant and the temperature of the coolant drops to the set value. Driven by the circulation pump, the low-temperature coolant is transported to the equipment or process along the pipeline. After picking up heat from the process or equipment, the coolant will flow back to the open water tank and be sent to the evaporator again for the next cycle under the push of the water pump.<\/p>\n<\/div>\n<\/div><div class=\"layout_badh\"><\/div><\/section>\n\n\n\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined\" id=\"\" style=\"background-color:#ffffff;\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"max-width:1025px;\">\n<div class=\"wp-block-column block_layout_in is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<style>.wp-block-kadence-advancedheading.kt-adv-heading14994_afcbea-de, .wp-block-kadence-advancedheading.kt-adv-heading14994_afcbea-de[data-kb-block=\"kb-adv-heading14994_afcbea-de\"]{text-align:left;font-size:30px;font-weight:400;font-style:normal;font-family:Arial, Helvetica, sans-serif;color:#4a4a4a;}.wp-block-kadence-advancedheading.kt-adv-heading14994_afcbea-de mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading14994_afcbea-de[data-kb-block=\"kb-adv-heading14994_afcbea-de\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading14994_afcbea-de img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading14994_afcbea-de[data-kb-block=\"kb-adv-heading14994_afcbea-de\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2 class=\"kt-adv-heading14994_afcbea-de wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading14994_afcbea-de\"><strong>Advantages of open loop circuit<\/strong><\/h2>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-themecolor-1-color has-alpha-channel-opacity has-themecolor-1-background-color has-background is-style-default\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<style>.wp-block-kadence-advancedheading.kt-adv-heading14994_d6e3fb-37, .wp-block-kadence-advancedheading.kt-adv-heading14994_d6e3fb-37[data-kb-block=\"kb-adv-heading14994_d6e3fb-37\"]{font-size:18px;font-weight:400;font-style:normal;font-family:Arial, Helvetica, sans-serif;letter-spacing:0.2px;color:#4a4a4a;}.wp-block-kadence-advancedheading.kt-adv-heading14994_d6e3fb-37 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading14994_d6e3fb-37[data-kb-block=\"kb-adv-heading14994_d6e3fb-37\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading14994_d6e3fb-37 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading14994_d6e3fb-37[data-kb-block=\"kb-adv-heading14994_d6e3fb-37\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<p class=\"kt-adv-heading14994_d6e3fb-37 wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading14994_d6e3fb-37\"><strong>\u2022 Water level visualization<\/strong><br>The open water tank makes it easy to see the water level of the coolant directly, without the need for additional water level sensors. When the water level is low, it can be added at any time without stopping the machine to vent or dismantle the pipeline.<br>&nbsp;<br><strong><a href=\"https:\/\/tw.lneya.com\/blog\/industrial-chiller-maintenance-you-should-know.html\">\u2022 Easy to maintain<\/a><\/strong><br>The open circuit uses a water tank plus water pump structure with a simple structure. There is no need to repeatedly vent during installation, and debugging is convenient. It has a short circulation path and is not easily blocked by impurities. Even if there are impurities in the water tank, it is easy to disassemble and clean.<br>&nbsp;<br><strong>\u2022 Branch liquid supply<\/strong><br>The open circuit can supply liquid at constant pressure for multiple processes and equipment without the need for balancing valves and pressure control logic.<br>&nbsp;<br><strong>\u2022 Thermal buffer<\/strong><br>The water tank used in the open circuit can store high-temperature coolant. When the instantaneous heat load of the process increases, the coolant stored in the water tank can act as a thermal buffer, avoid drastic temperature fluctuations, and reduce the instantaneous pressure of the chiller refrigeration system.<br>&nbsp;<br><strong>\u2022 Low initial cost<\/strong><br>Open-loop chillers do not use closed expansion tanks, pressure controllers, and complex pipeline seals, and have a low initial cost.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div>\n<\/div><div class=\"layout_badh\"><\/div><\/section>\n\n\n\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined\" id=\"\" style=\"background-color:#ffffff;\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"max-width:1025px;\">\n<div class=\"wp-block-column block_layout_in is-layout-flow wp-block-column-is-layout-flow\"><style>.wp-block-kadence-advancedheading.kt-adv-heading14994_d05882-6a, .wp-block-kadence-advancedheading.kt-adv-heading14994_d05882-6a[data-kb-block=\"kb-adv-heading14994_d05882-6a\"]{text-align:left;font-size:30px;font-weight:400;font-style:normal;font-family:Arial, Helvetica, sans-serif;color:#4a4a4a;}.wp-block-kadence-advancedheading.kt-adv-heading14994_d05882-6a mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading14994_d05882-6a[data-kb-block=\"kb-adv-heading14994_d05882-6a\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading14994_d05882-6a img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading14994_d05882-6a[data-kb-block=\"kb-adv-heading14994_d05882-6a\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2 class=\"kt-adv-heading14994_d05882-6a wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading14994_d05882-6a\"><strong>Limitations of open loop circuit<\/strong><\/h2>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-themecolor-1-color has-alpha-channel-opacity has-themecolor-1-background-color has-background is-style-default\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<style>.wp-block-kadence-advancedheading.kt-adv-heading14994_f22a89-36, .wp-block-kadence-advancedheading.kt-adv-heading14994_f22a89-36[data-kb-block=\"kb-adv-heading14994_f22a89-36\"]{font-size:18px;font-weight:400;font-style:normal;font-family:Arial, Helvetica, sans-serif;letter-spacing:0.2px;color:#4a4a4a;}.wp-block-kadence-advancedheading.kt-adv-heading14994_f22a89-36 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading14994_f22a89-36[data-kb-block=\"kb-adv-heading14994_f22a89-36\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading14994_f22a89-36 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading14994_f22a89-36[data-kb-block=\"kb-adv-heading14994_f22a89-36\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<p class=\"kt-adv-heading14994_f22a89-36 wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading14994_f22a89-36\">In an open water tank, the coolant will come into direct contact with the air and directly absorb impurities such as moisture, dust, and oil mist in the air. In particular, Glycol is highly hygroscopic, and after absorbing water, it will change physical properties such as concentration, viscosity, and freezing point, causing performance degradation.<br>&nbsp;<br>If there are too many impurities in the coolant, they will accumulate in the pipeline, causing pipeline blockage. Moreover, high-temperature coolant is easy to evaporate and needs to be replenished regularly. If toxic, corrosive, or volatile liquids such as heat transfer oils are used as coolants, they will evaporate and leak in the open system, posing a safety hazard.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div>\n<\/div><div class=\"layout_badh\"><\/div><\/section>\n\n\n\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined\" id=\"\" style=\"background-color:#ffffff;\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"max-width:1025px;\">\n<div class=\"wp-block-column block_layout_in is-layout-flow wp-block-column-is-layout-flow\"><style>.wp-block-kadence-advancedheading.kt-adv-heading14994_b052a6-21, .wp-block-kadence-advancedheading.kt-adv-heading14994_b052a6-21[data-kb-block=\"kb-adv-heading14994_b052a6-21\"]{text-align:left;font-size:30px;font-weight:400;font-style:normal;font-family:Arial, Helvetica, sans-serif;color:#4a4a4a;}.wp-block-kadence-advancedheading.kt-adv-heading14994_b052a6-21 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading14994_b052a6-21[data-kb-block=\"kb-adv-heading14994_b052a6-21\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading14994_b052a6-21 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading14994_b052a6-21[data-kb-block=\"kb-adv-heading14994_b052a6-21\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2 class=\"kt-adv-heading14994_b052a6-21 wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading14994_b052a6-21\"><strong>Maintenance of open loop circuits<\/strong><\/h2>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-themecolor-1-color has-alpha-channel-opacity has-themecolor-1-background-color has-background is-style-default\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<style>.wp-block-kadence-advancedheading.kt-adv-heading14994_765d03-f0, .wp-block-kadence-advancedheading.kt-adv-heading14994_765d03-f0[data-kb-block=\"kb-adv-heading14994_765d03-f0\"]{font-size:18px;font-weight:400;font-style:normal;font-family:Arial, Helvetica, sans-serif;letter-spacing:0.2px;color:#4a4a4a;}.wp-block-kadence-advancedheading.kt-adv-heading14994_765d03-f0 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading14994_765d03-f0[data-kb-block=\"kb-adv-heading14994_765d03-f0\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading14994_765d03-f0 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading14994_765d03-f0[data-kb-block=\"kb-adv-heading14994_765d03-f0\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<p class=\"kt-adv-heading14994_765d03-f0 wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading14994_765d03-f0\">The coolant in the open circuit is easy to evaporate at high temperatures and should be replenished regularly to prevent the pump from running dry or drawing in air due to low liquid level, which may cause pump cavitation damage. The water tank should be inspected and cleaned at least once every 3 months to prevent impurities from clogging the pipes. In addition, in order to ensure heat exchange efficiency, the coolant needs to be replaced regularly to prevent deterioration and corrosion of the cooling system.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div>\n<\/div><div class=\"layout_badh\"><\/div><\/section>\n\n\n\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined\" id=\"\" style=\"background-color:#ffffff;\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"max-width:1025px;\">\n<div class=\"wp-block-column block_layout_in is-layout-flow wp-block-column-is-layout-flow\"><style>.wp-block-kadence-advancedheading.kt-adv-heading14994_97cf2f-54, .wp-block-kadence-advancedheading.kt-adv-heading14994_97cf2f-54[data-kb-block=\"kb-adv-heading14994_97cf2f-54\"]{text-align:left;font-size:30px;font-weight:400;font-style:normal;font-family:Arial, Helvetica, sans-serif;color:#4a4a4a;}.wp-block-kadence-advancedheading.kt-adv-heading14994_97cf2f-54 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading14994_97cf2f-54[data-kb-block=\"kb-adv-heading14994_97cf2f-54\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading14994_97cf2f-54 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading14994_97cf2f-54[data-kb-block=\"kb-adv-heading14994_97cf2f-54\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2 class=\"kt-adv-heading14994_97cf2f-54 wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading14994_97cf2f-54\"><strong>Conclusion<\/strong><\/h2>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-themecolor-1-color has-alpha-channel-opacity has-themecolor-1-background-color has-background is-style-default\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<style>.wp-block-kadence-advancedheading.kt-adv-heading14994_dbdde0-4c, .wp-block-kadence-advancedheading.kt-adv-heading14994_dbdde0-4c[data-kb-block=\"kb-adv-heading14994_dbdde0-4c\"]{font-size:18px;font-weight:400;font-style:normal;font-family:Arial, Helvetica, sans-serif;letter-spacing:0.2px;color:#4a4a4a;}.wp-block-kadence-advancedheading.kt-adv-heading14994_dbdde0-4c mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading14994_dbdde0-4c[data-kb-block=\"kb-adv-heading14994_dbdde0-4c\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading14994_dbdde0-4c img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading14994_dbdde0-4c[data-kb-block=\"kb-adv-heading14994_dbdde0-4c\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<p class=\"kt-adv-heading14994_dbdde0-4c wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading14994_dbdde0-4c\">Open circuits are generally used in working conditions where accuracy and cleanliness are not strictly required. If you want to control the temperature of precision equipment and processes such as semiconductors, MRI and CNC machine tools, closed circuit chillers are the best choice. LNEYA provides standard <a href=\"https:\/\/tw.lneya.com\/closed-loop-chillers\">closed-loop circuit chillers<\/a> and <a href=\"https:\/\/tw.lneya.com\/contact\">customized services<\/a>. LNEYA offers a full range of temperature control solutions tailored to your application needs.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div>\n<\/div><div class=\"layout_badh\"><\/div><\/section>\n\n\n<style>.wp-block-kadence-advancedheading.kt-adv-heading14994_d78001-fd, .wp-block-kadence-advancedheading.kt-adv-heading14994_d78001-fd[data-kb-block=\"kb-adv-heading14994_d78001-fd\"]{text-align:center;font-size:30px;font-weight:400;font-style:normal;font-family:Arial, Helvetica, sans-serif;color:#4a4a4a;}.wp-block-kadence-advancedheading.kt-adv-heading14994_d78001-fd mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading14994_d78001-fd[data-kb-block=\"kb-adv-heading14994_d78001-fd\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading14994_d78001-fd img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading14994_d78001-fd[data-kb-block=\"kb-adv-heading14994_d78001-fd\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2 class=\"kt-adv-heading14994_d78001-fd wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading14994_d78001-fd\"><strong>Related chillers<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<style>.kb-portfolio-loop14994_3175ec-3d .kb-blocks-portfolio-grid-item{border-top:1px solid;border-right:1px solid;border-bottom:1px solid;border-left:1px solid;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.kb-portfolio-loop14994_3175ec-3d .kb-portfolio-overlay-color{background-color:rgba(23, 104, 234, 0);}.kb-portfolio-loop14994_3175ec-3d .kb-portfolio-overlay-border{border-top:1px solid;border-right:1px solid;border-bottom:1px solid;border-left:1px solid;}.kb-portfolio-loop14994_3175ec-3d .kb-blocks-portfolio-grid-item:hover .kb-portfolio-overlay-color{background-color:rgba(23, 104, 234, 0.5);}.kb-portfolio-loop14994_3175ec-3d .kb-blocks-portfolio-grid-item:hover .kb-portfolio-overlay-border{border-top:1px solid rgba(255, 255, 255, 0.8);border-right:1px solid rgba(255, 255, 255, 0.8);border-bottom:1px solid rgba(255, 255, 255, 0.8);border-left:1px solid rgba(255, 255, 255, 0.8);}.kb-portfolio-loop14994_3175ec-3d .kb-blocks-portfolio-grid-item .entry-title{padding:5px 0px 10px 0px;margin:0px 0px 0px 0px;}.kb-portfolio-loop14994_3175ec-3d .kb-filter-item{border-width:0px 0px 2px 0px;padding:5px 8px 5px 8px;margin:0px 10px 0px 0px;}.kb-portfolio-loop14994_3175ec-3d .kb-portfolio-grid-pause-button{color:#fff;background-color:rgba(0, 0, 0, 0.5);border:1px solid transparent;}@media all and (max-width: 1024px){.kb-portfolio-loop14994_3175ec-3d .kb-blocks-portfolio-grid-item{border-top:1px solid;border-right:1px solid;border-bottom:1px solid;border-left:1px solid;}}@media all and (max-width: 1024px){.kb-portfolio-loop14994_3175ec-3d .kb-portfolio-overlay-border{border-top:1px solid;border-right:1px solid;border-bottom:1px solid;border-left:1px solid;}}@media all and (max-width: 1024px){.kb-portfolio-loop14994_3175ec-3d .kb-blocks-portfolio-grid-item:hover .kb-portfolio-overlay-border{border-top:1px solid rgba(255, 255, 255, 0.8);border-right:1px solid rgba(255, 255, 255, 0.8);border-bottom:1px solid rgba(255, 255, 255, 0.8);border-left:1px solid rgba(255, 255, 255, 0.8);}}@media all and (max-width: 767px){.kb-portfolio-loop14994_3175ec-3d .kb-blocks-portfolio-grid-item{border-top:1px solid;border-right:1px solid;border-bottom:1px solid;border-left:1px solid;}.kb-portfolio-loop14994_3175ec-3d .kb-portfolio-overlay-border{border-top:1px solid;border-right:1px solid;border-bottom:1px solid;border-left:1px solid;}.kb-portfolio-loop14994_3175ec-3d .kb-blocks-portfolio-grid-item:hover .kb-portfolio-overlay-border{border-top:1px solid rgba(255, 255, 255, 0.8);border-right:1px solid rgba(255, 255, 255, 0.8);border-bottom:1px solid rgba(255, 255, 255, 0.8);border-left:1px solid rgba(255, 255, 255, 0.8);}}<\/style><div class=\" wp-block-kadence-portfoliogrid kb-blocks-portfolio-loop-block alignnone kb-portfolio-loop14994_3175ec-3d kb-portfolio-grid-layout-carousel kt-blocks-carousel \"><div class=\" kb-portfolio-grid-layout-carousel-wrap kt-post-grid-layout-carousel-wrap kt-carousel-arrowstyle-whiteondark kt-carousel-dotstyle-dark splide kb-blocks-portfolio-img-hover-zoomout kb-blocks-portfolio-content-hover-zoomin\" data-columns-xxl=\"2\" data-columns-xl=\"2\" data-columns-md=\"2\" data-columns-sm=\"2\" data-columns-xs=\"1\" data-columns-ss=\"1\" data-slider-center-mode=\"false\" data-slider-type=\"carousel\" data-slider-anim-speed=\"400\" data-slider-scroll=\"1\" data-slider-dots=\"true\" data-slider-arrows=\"true\" data-slider-hover-pause=\"false\" data-slider-auto=\"true\" data-slider-center-mode=\"false\" data-slider-speed=\"7000\" data-show-pause-button=\"false\" data-slider-gap=\"30\" data-slider-gap-tablet=\"30\" data-slider-gap-mobile=\"30\" data-slider-gap-unit=\"px\" data-item-selector=\".kb-portfolio-masonry-item\"><div class=\"kadence-splide-slider-init splide__track\"><ul><li class=\"kb-portfolio-slider-item kb-slide-item\"><div class=\"kb-blocks-portfolio-grid-item\"><div class=\"kb-blocks-portfolio-grid-item-inner-wrap kb-feat-image-align-none\"><div class=\"kadence-portfolio-image\"><div class=\"kadence-portfolio-image-intrisic kt-image-ratio-50\" style=\"padding-bottom:50%\"><div class=\"kadence-portfolio-image-inner-intrisic\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"560\" src=\"https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/07\/LG-seires-screw-chillers-e1752129307707-1024x560.jpg\" class=\"attachment-large size-large wp-post-image\" alt=\"screw chiller\" srcset=\"https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/07\/LG-seires-screw-chillers-e1752129307707-1024x560.jpg 1024w, https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/07\/LG-seires-screw-chillers-e1752129307707-300x164.jpg 300w, https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/07\/LG-seires-screw-chillers-e1752129307707-768x420.jpg 768w, https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/07\/LG-seires-screw-chillers-e1752129307707-18x10.jpg 18w, https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/07\/LG-seires-screw-chillers-e1752129307707.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/div><\/div><div class=\"kb-portfolio-grid-item-inner\"><a href=\"https:\/\/tw.lneya.com\/de\/screw-chillers\" aria-label=\"Screw Chillers\" class=\"portfolio-hover-item-link\"><\/a><div class=\"kb-portfolio-overlay-color\"><\/div><div class=\"kb-portfolio-overlay-border\"><\/div><div class=\"kb-portfolio-content-item-inner\"><h3 class=\"entry-title kb-portfolio-loop-title\">Screw Chillers<\/h3><\/div><\/div><\/div><\/div><\/li><li class=\"kb-portfolio-slider-item kb-slide-item\"><div class=\"kb-blocks-portfolio-grid-item\"><div class=\"kb-blocks-portfolio-grid-item-inner-wrap kb-feat-image-align-none\"><div class=\"kadence-portfolio-image\"><div class=\"kadence-portfolio-image-intrisic kt-image-ratio-50\" style=\"padding-bottom:50%\"><div class=\"kadence-portfolio-image-inner-intrisic\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"600\" src=\"https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/05\/How-to-Select-chiller-2.jpg\" class=\"attachment-large size-large wp-post-image\" alt=\"The cost of a chiller includes purchase cost, operating cost and maintenance cost\" srcset=\"https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/05\/How-to-Select-chiller-2.jpg 900w, https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/05\/How-to-Select-chiller-2-300x200.jpg 300w, https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/05\/How-to-Select-chiller-2-768x512.jpg 768w, https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/05\/How-to-Select-chiller-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/div><\/div><\/div><div class=\"kb-portfolio-grid-item-inner\"><a href=\"https:\/\/tw.lneya.com\/de\/industrial-chillers\" aria-label=\"Industrial Chillers Characteristics\" class=\"portfolio-hover-item-link\"><\/a><div class=\"kb-portfolio-overlay-color\"><\/div><div class=\"kb-portfolio-overlay-border\"><\/div><div class=\"kb-portfolio-content-item-inner\"><h3 class=\"entry-title kb-portfolio-loop-title\">Industrial Chillers Characteristics<\/h3><\/div><\/div><\/div><\/div><\/li><li class=\"kb-portfolio-slider-item kb-slide-item\"><div class=\"kb-blocks-portfolio-grid-item\"><div class=\"kb-blocks-portfolio-grid-item-inner-wrap kb-feat-image-align-none\"><div class=\"kadence-portfolio-image\"><div class=\"kadence-portfolio-image-intrisic kt-image-ratio-50\" style=\"padding-bottom:50%\"><div class=\"kadence-portfolio-image-inner-intrisic\"><img loading=\"lazy\" decoding=\"async\" width=\"450\" height=\"450\" src=\"https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/04\/\u51b0\u7bb1-5.jpg\" class=\"attachment-large size-large wp-post-image\" alt=\"\" srcset=\"https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/04\/\u51b0\u7bb1-5.jpg 450w, https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/04\/\u51b0\u7bb1-5-300x300.jpg 300w, https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/04\/\u51b0\u7bb1-5-150x150.jpg 150w, https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/04\/\u51b0\u7bb1-5-12x12.jpg 12w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/div><\/div><\/div><div class=\"kb-portfolio-grid-item-inner\"><a href=\"https:\/\/tw.lneya.com\/de\/industrial-freezers\" aria-label=\"\u5de5\u696d\u51b0\u7bb1\" class=\"portfolio-hover-item-link\"><\/a><div class=\"kb-portfolio-overlay-color\"><\/div><div class=\"kb-portfolio-overlay-border\"><\/div><div class=\"kb-portfolio-content-item-inner\"><h3 class=\"entry-title kb-portfolio-loop-title\">\u5de5\u696d\u51b0\u7bb1<\/h3><\/div><\/div><\/div><\/div><\/li><li class=\"kb-portfolio-slider-item kb-slide-item\"><div class=\"kb-blocks-portfolio-grid-item\"><div class=\"kb-blocks-portfolio-grid-item-inner-wrap kb-feat-image-align-none\"><div class=\"kadence-portfolio-image\"><div class=\"kadence-portfolio-image-intrisic kt-image-ratio-50\" style=\"padding-bottom:50%\"><div class=\"kadence-portfolio-image-inner-intrisic\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"587\" src=\"https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/07\/multi-channel-chillers-1024x587.jpg\" class=\"attachment-large size-large wp-post-image\" alt=\"\" srcset=\"https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/07\/multi-channel-chillers-1024x587.jpg 1024w, https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/07\/multi-channel-chillers-300x172.jpg 300w, https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/07\/multi-channel-chillers-768x441.jpg 768w, https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/07\/multi-channel-chillers-18x10.jpg 18w, https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/07\/multi-channel-chillers.jpg 1515w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/div><\/div><div class=\"kb-portfolio-grid-item-inner\"><a href=\"https:\/\/tw.lneya.com\/de\/vfd-chiller\" aria-label=\"VFD chiller\" class=\"portfolio-hover-item-link\"><\/a><div class=\"kb-portfolio-overlay-color\"><\/div><div class=\"kb-portfolio-overlay-border\"><\/div><div class=\"kb-portfolio-content-item-inner\"><h3 class=\"entry-title kb-portfolio-loop-title\">VFD chiller<\/h3><\/div><\/div><\/div><\/div><\/li><li class=\"kb-portfolio-slider-item kb-slide-item\"><div class=\"kb-blocks-portfolio-grid-item\"><div class=\"kb-blocks-portfolio-grid-item-inner-wrap kb-feat-image-align-none\"><div class=\"kadence-portfolio-image\"><div class=\"kadence-portfolio-image-intrisic kt-image-ratio-50\" style=\"padding-bottom:50%\"><div class=\"kadence-portfolio-image-inner-intrisic\"><img loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"570\" src=\"https:\/\/tw.lneya.com\/wp-content\/uploads\/2023\/07\/zlj02.jpg\" class=\"attachment-large size-large wp-post-image\" alt=\"\" srcset=\"https:\/\/tw.lneya.com\/wp-content\/uploads\/2023\/07\/zlj02.jpg 880w, https:\/\/tw.lneya.com\/wp-content\/uploads\/2023\/07\/zlj02-300x194.jpg 300w, https:\/\/tw.lneya.com\/wp-content\/uploads\/2023\/07\/zlj02-768x497.jpg 768w\" sizes=\"auto, (max-width: 880px) 100vw, 880px\" \/><\/div><\/div><\/div><div class=\"kb-portfolio-grid-item-inner\"><a href=\"https:\/\/tw.lneya.com\/de\/direct-expansion-chiller\" 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https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/01\/3-300x200.jpg 300w, https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/01\/3-768x512.jpg 768w, https:\/\/tw.lneya.com\/wp-content\/uploads\/2025\/01\/3-18x12.jpg 18w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/div><\/div><\/div><div class=\"kb-portfolio-grid-item-inner\"><a href=\"https:\/\/tw.lneya.com\/de\/air-cooled-chillers\" aria-label=\"\u98a8\u51b7\u5f0f\u51b7\u6c34\u6a5f\" class=\"portfolio-hover-item-link\"><\/a><div class=\"kb-portfolio-overlay-color\"><\/div><div class=\"kb-portfolio-overlay-border\"><\/div><div class=\"kb-portfolio-content-item-inner\"><h3 class=\"entry-title kb-portfolio-loop-title\">\u98a8\u51b7\u5f0f\u51b7\u6c34\u6a5f<\/h3><\/div><\/div><\/div><\/div><\/li><\/ul><\/div><div class=\"clearfix\" style=\"clear:both\"><\/div><\/div><\/div>\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<section class=\"wp-block-themepark-block-themepark-area 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