{"id":72817,"date":"2026-09-16T12:36:17","date_gmt":"2026-09-16T09:36:17","guid":{"rendered":"https:\/\/unox.com.tr\/how-to-select-a-compensator\/"},"modified":"2026-09-16T13:30:37","modified_gmt":"2026-09-16T10:30:37","slug":"how-to-select-a-compensator","status":"publish","type":"post","link":"https:\/\/unox.com.tr\/en\/how-to-select-a-compensator\/","title":{"rendered":"How to Select a Compensator? A Guide to Choosing the Right Product Based on DN, PN, Temperature, and Fluid"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Sayfa \u0130\u00e7eri\u011fi<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/unox.com.tr\/en\/how-to-select-a-compensator\/#How_to_Select_a_Compensator_A_Guide_to_Choosing_the_Right_Product_Based_on_DN_PN_Temperature_and_Fluid\" >How to Select a Compensator? A Guide to Choosing the Right Product Based on DN, PN, Temperature, and Fluid<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/unox.com.tr\/en\/how-to-select-a-compensator\/#So_how_do_you_select_the_right_compensator\" >So, how do you select the right compensator?<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/unox.com.tr\/en\/how-to-select-a-compensator\/#The_First_Step_in_Compensator_Selection_Determining_the_System_Requirements\" >The First Step in Compensator Selection: Determining the System Requirements<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/unox.com.tr\/en\/how-to-select-a-compensator\/#1_DN_Value_How_Is_the_Compensator_Diameter_Determined\" >1. DN Value: How Is the Compensator Diameter Determined?<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/unox.com.tr\/en\/how-to-select-a-compensator\/#Why_Should_You_Not_Select_a_Compensator_Based_Solely_on_DN\" >Why Should You Not Select a Compensator Based Solely on DN?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/unox.com.tr\/en\/how-to-select-a-compensator\/#2_PN_Value_What_Pressure_Rating_Should_the_Compensator_Withstand\" >2. PN Value: What Pressure Rating Should the Compensator Withstand?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/unox.com.tr\/en\/how-to-select-a-compensator\/#3_Operating_Temperature_A_Critical_Factor_in_Determining_the_Compensator_Material\" >3. Operating Temperature: A Critical Factor in Determining the Compensator Material<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/unox.com.tr\/en\/how-to-select-a-compensator\/#4_Fluid_Type_Not_Every_Compensator_Is_Suitable_for_Every_Fluid\" >4. Fluid Type: Not Every Compensator Is Suitable for Every Fluid<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/unox.com.tr\/en\/how-to-select-a-compensator\/#5_Expansion_Amount_Check_the_Movement_Capacity_of_the_Expansion_Joint\" >5. Expansion Amount: Check the Movement Capacity of the Expansion Joint<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/unox.com.tr\/en\/how-to-select-a-compensator\/#6_Why_Is_the_Installation_Location_of_the_Expansion_Joint_Important\" >6. Why Is the Installation Location of the Expansion Joint Important?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Select_a_Compensator_A_Guide_to_Choosing_the_Right_Product_Based_on_DN_PN_Temperature_and_Fluid\"><\/span><strong>How to Select a Compensator? A Guide to Choosing the Right Product Based on DN, PN, Temperature, and Fluid <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p class=\"wp-block-wd-paragraph wd-6552e629\"><a href=\"https:\/\/unox.com.tr\/en\/expansion-joints\/\" data-type=\"link\" data-id=\"https:\/\/unox.com.tr\/kompansator\/\">Compensator <\/a>selection in a pipeline is not a process that can be carried out based solely on pipe diameter. The system\u2019s operating pressure and temperature, the fluid flowing through it, the movements to which the pipeline is exposed, the connection type, and the intended application must all be evaluated together. <\/p>\n\n<p class=\"wp-block-wd-paragraph wd-c5bfa006\">An incorrectly selected compensator may initially appear to be only a minor mismatch, but over time it can lead to sealing problems, vibration, stress at connection points, and equipment damage.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-e3a8873f\">Especially in pump, boiler, HVAC, steam, hot water, compressed air, and industrial process lines, selecting the correct compensator is an important design criterion for ensuring the reliability of the piping system.<\/p>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"So_how_do_you_select_the_right_compensator\"><\/span>So, how do you select the right compensator?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p class=\"wp-block-wd-paragraph wd-b52d93f6\">In this guide, we will examine step by step the key criteria that need to be considered when selecting a compensator, particularly DN, PN, temperature, fluid, and movement capacity.<\/p>\n\n<div class=\"wp-block-wd-divider wd-style-line wd-85809f79\"><\/div>\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_First_Step_in_Compensator_Selection_Determining_the_System_Requirements\"><\/span><strong>The First Step in Compensator Selection: Determining the System Requirements<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n<p class=\"wp-block-wd-paragraph wd-ecd86c5c\">Instead of starting the <a href=\"https:\/\/www.unoxonline.com.tr\/?s=KOMPANSAT%C3%96R&amp;post_type=product&amp;type_aws=true&amp;lang=tr\" data-type=\"link\" data-id=\"https:\/\/www.unoxonline.com.tr\/?s=KOMPANSAT%C3%96R&amp;post_type=product&amp;type_aws=true&amp;lang=tr\" rel=\"nofollow noopener\" target=\"_blank\">compensator <\/a>selection process by directly choosing a product model, the operating conditions of the piping system should first be clearly determined.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-5303c95c\"><br\/>The following questions should be answered:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>What is the nominal diameter of the pipeline?<\/li>\n\n\n\n<li>What pressure does the system operate at?<\/li>\n\n\n\n<li>What are the minimum and maximum operating temperatures?<\/li>\n\n\n\n<li>What fluid flows through the pipeline?<\/li>\n\n\n\n<li>How much expansion or movement occurs in the pipeline?<\/li>\n\n\n\n<li>Where will the compensator be installed?<\/li>\n\n\n\n<li>What is the connection type?<\/li>\n\n\n\n<li>Is there any vibration in the system?<\/li>\n\n\n\n<li>How close is the equipment to a pump, fan, or other source of vibration?<\/li>\n\n\n\n<li>What is the primary function expected from the compensator?<\/li>\n<\/ul>\n\n<p class=\"wp-block-wd-paragraph wd-6d3fc0c4\">Selecting a product based solely on a statement such as \u201cI need a DN100 compensator\u201d without determining these factors is not the correct approach.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-b06d4b1e\">Because different compensator solutions may be available for the same DN size, depending on the pressure, temperature, and fluid conditions.<\/p>\n\n<div class=\"wp-block-wd-divider wd-style-line wd-d7b4bec2\"><\/div>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_DN_Value_How_Is_the_Compensator_Diameter_Determined\"><\/span><strong>1. DN Value: How Is the Compensator Diameter Determined?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p class=\"wp-block-wd-paragraph wd-b4922b95\">One of the first values to check when selecting a compensator is the DN (Nominal Diameter).<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-b1cf21a7\">DN refers to the nominal size of the pipeline. For example: <\/p>\n\n<ul class=\"wp-block-list\">\n<li>DN25<\/li>\n\n\n\n<li>DN50<\/li>\n\n\n\n<li>DN80<\/li>\n\n\n\n<li>DN100<\/li>\n\n\n\n<li>DN150<\/li>\n\n\n\n<li>DN200<\/li>\n<\/ul>\n\n<p class=\"wp-block-wd-paragraph wd-f7af13d0\">Compensators in different sizes can be used, such as DN25, DN50, DN100, and DN200.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-50a06a43\">However, the important factor here is not simply that the DN value is the same.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-93da6f63\">The compensator\u2019s:<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-e0200258\"><strong>Pipe diameter + connection size + flange standard + installation method<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-a61ff253\">must be evaluated together.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-b7a2ea08\">For example, a compensator used in a DN100 pipeline cannot be specified simply as \u201cDN100.\u201d The flange dimensions and connection standard must also be checked. <\/p>\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Should_You_Not_Select_a_Compensator_Based_Solely_on_DN\"><\/span><strong>Why Should You Not Select a Compensator Based Solely on DN?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n<p class=\"wp-block-wd-paragraph wd-e7d7535a\">Because the primary function of a compensator is not simply to connect two sections of pipe.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-d6de0505\">Compensators ;<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Axial movement,<\/li>\n\n\n\n<li>Lateral movement,<\/li>\n\n\n\n<li>Vibration,<\/li>\n\n\n\n<li>Thermal expansion,<\/li>\n\n\n\n<li>mechanical stress<\/li>\n<\/ul>\n\n<p class=\"wp-block-wd-paragraph wd-966de819\">is selected to accommodate system movements such as these.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-94cd4b78\">Therefore, DN is the starting point of the selection process, not the final criterion.<\/p>\n\n<div class=\"wp-block-wd-divider wd-style-line wd-f8a483a7\"><\/div>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_PN_Value_What_Pressure_Rating_Should_the_Compensator_Withstand\"><\/span><strong>2. PN Value: What Pressure Rating Should the Compensator Withstand?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p class=\"wp-block-wd-paragraph wd-b4ab9760\">The second important criterion when selecting a compensator is the PN pressure rating.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-ba0a5413\">The system\u2019s operating pressure must be compatible with the compensator\u2019s allowable working pressure.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-7dae0385\">For example, if your system operates at high pressure, it is not appropriate to select a low-pressure-rated compensator based solely on the DN value.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-c5c8659e\">The following distinction should also be made:<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-2b6afee5\"><strong>System pressure \u2260 Maximum pressure rating of the compensator<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-2bded6e0\">The pressure, temperature, and operating conditions specified in the product\u2019s technical specifications must be evaluated together.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-fdd5ad53\">For example, some metal bellows compensators in the UNOX product range are available with operating pressures up to PN16 and high-temperature resistance depending on the model, while externally pressurized models offer different temperature and expansion capabilities. Therefore, the product\u2019s technical datasheet should always be checked directly when making a selection. <\/p>\n\n<p class=\"wp-block-wd-paragraph wd-49605427\"><strong>Practical Check<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-e2e9fe44\">Before selecting a compensator, write down the following two values side by side:<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-867be3b7\">System operating pressure: \u2026 bar<br\/>Compensator operating pressure: \u2026 bar<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-c0abc4d2\">The allowable values under the operating temperature conditions should then be checked separately.<\/p>\n\n<div class=\"wp-block-wd-divider wd-style-line wd-fccf7745\"><\/div>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Operating_Temperature_A_Critical_Factor_in_Determining_the_Compensator_Material\"><\/span><strong>3. Operating Temperature: A Critical Factor in Determining the Compensator Material<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p class=\"wp-block-wd-paragraph wd-498e009e\">One of the most frequently overlooked criteria when selecting a compensator is temperature.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-38f5ae11\">A system may:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Cold water,<\/li>\n\n\n\n<li>Hot water,<\/li>\n\n\n\n<li>Hot water,<\/li>\n\n\n\n<li>Steam<\/li>\n\n\n\n<li>Hot air,<\/li>\n\n\n\n<li>Gas,<\/li>\n\n\n\n<li>Thermal oil<\/li>\n<\/ul>\n\n<p class=\"wp-block-wd-paragraph wd-4f09a489\">It can operate with various fluids such as these.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-d6257b4f\">The temperature and operating conditions vary for each fluid.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-cf4abaa5\">Therefore, the compensator\u2019s minimum and maximum operating temperatures must always be checked.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-754652f1\">Especially for metal bellows compensators, temperature resistance may vary depending on the technical design of the product. In UNOX\u2019s 2026 product documentation, some metal bellows models are specified with maximum operating temperatures ranging from -80\u00b0C to +427\u00b0C, while certain externally pressurized models are rated for temperatures ranging from -196\u00b0C to +600\u00b0C. <\/p>\n\n<p class=\"wp-block-wd-paragraph wd-2f6aaa95\">Therefore:<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-0633f126\">\u201cA compensator will be used in the steam line.\u201d<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-db2eedd3\">this information alone is not sufficient.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-437eafb5\">The operating temperature and pressure of the steam must also be known.<\/p>\n\n<div class=\"wp-block-wd-divider wd-style-line wd-0ff0474e\"><\/div>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Fluid_Type_Not_Every_Compensator_Is_Suitable_for_Every_Fluid\"><\/span><strong>4. Fluid Type: Not Every Compensator Is Suitable for Every Fluid<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p class=\"wp-block-wd-paragraph wd-7ef8d48f\">One of the most important questions to ask when selecting a compensator is:<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-194da8eb\"><strong>\u201cWhat will flow through the compensator?\u201d<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-2b63e550\">The fluid:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>water,<\/li>\n\n\n\n<li>Hot water,<\/li>\n\n\n\n<li>Steam<\/li>\n\n\n\n<li>Air<\/li>\n\n\n\n<li>Natural gas,<\/li>\n\n\n\n<li>Oil,<\/li>\n\n\n\n<li>chemical liquid<\/li>\n<\/ul>\n\n<p class=\"wp-block-wd-paragraph wd-c47f7490\">It could be.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-fe69a373\">The chemical and physical properties of the fluid require evaluation in terms of the materials used for the compensator body, bellows, rubber components, gaskets, and internal lining.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-5354be1b\">For example, the UNOX product range includes not only rubber expansion joints but also stainless steel bellows expansion joints and expansion joints with different structural characteristics.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-99991df5\">Therefore:<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-5454e576\"><strong>\u201cCan I use this product because it is DN100?\u201d<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-623ee4d1\">The answer to this question cannot be determined based on the DN size alone.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-98b71bff\">The actual question is:<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-d0fc8c5d\"><strong>\u201cIs this expansion joint suitable for DN100, at this pressure and temperature, and for this fluid?\u201d<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-8bfc865f\">It should be.<\/p>\n\n<div class=\"wp-block-wd-divider wd-style-line wd-e3afe613\"><\/div>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Expansion_Amount_Check_the_Movement_Capacity_of_the_Expansion_Joint\"><\/span><strong>5. Expansion Amount: Check the Movement Capacity of the Expansion Joint<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p class=\"wp-block-wd-paragraph wd-78128396\">The amount of movement that the expansion joint needs to accommodate in the piping system is also a critical parameter in <a href=\"https:\/\/www.unoxonline.com.tr\/?s=KOMPANSAT%C3%96R&amp;post_type=product&amp;type_aws=true&amp;lang=tr\" data-type=\"link\" data-id=\"https:\/\/www.unoxonline.com.tr\/?s=KOMPANSAT%C3%96R&amp;post_type=product&amp;type_aws=true&amp;lang=tr\" rel=\"nofollow noopener\" target=\"_blank\">product <\/a>selection.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-27ccadd3\">The piping system may expand or contract due to temperature changes.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-e335d523\">Especially in long pipelines, the thermal movement caused by temperature changes must be taken into account.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-b69056e5\">At this point, the movement capacity of the expansion joint should be checked.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-4446d8b6\">For example, UNOX\u2019s externally pressurized flanged expansion joints are available in models designed to accommodate different expansion movements. The 2026 product documentation lists expansion options of 30 mm, 60 mm, and 90 mm. <\/p>\n\n<p class=\"wp-block-wd-paragraph wd-074ef2ee\">Therefore, when selecting a product:<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-b3a9d706\"><strong>\u201cWhat is the DN size?\u201d<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-b42fdede\">In addition to asking:<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-9e1776c2\"><strong>\u201cHow much movement does it need to accommodate?\u201d<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-3768b003\">The question \u201cHow much movement does it need to accommodate?\u201d should also always be asked.<\/p>\n\n<div class=\"wp-block-wd-divider wd-style-line wd-be08c8a6\"><\/div>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_Why_Is_the_Installation_Location_of_the_Expansion_Joint_Important\"><\/span><strong>6. Why Is the Installation Location of the Expansion Joint Important?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p class=\"wp-block-wd-paragraph wd-dbcedc86\">The same product may not perform the same function at different points in the piping system.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-587e1f2e\">For example, the expansion joint:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>at the pump suction<\/li>\n\n\n\n<li>at the pump discharge<\/li>\n\n\n\n<li>at the boiler connection<\/li>\n\n\n\n<li>in a long pipeline<\/li>\n\n\n\n<li>in an HVAC system<\/li>\n\n\n\n<li>at the connection to vibrating equipment<\/li>\n<\/ul>\n\n<p class=\"wp-block-wd-paragraph wd-27226347\">can be used.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-d04a0b61\">Near pumps and similar equipment, the expansion joint may be expected not only to accommodate thermal expansion but also to limit vibration and mechanical movements.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-20e6c86c\">Therefore, it is not advisable to select an expansion joint without first determining its intended function.<\/p>\n\n<div class=\"wp-block-wd-divider wd-style-line wd-f462f582\"><\/div>\n\n<p class=\"wp-block-wd-paragraph wd-a8d1b1d3\"><strong>Rubber Expansion Joint or Metal Expansion Joint?<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-50c446c6\">This is one of the most common questions when selecting an expansion joint.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-cf4cade6\">However, rather than giving a general answer to the question \u201cWhich one is better?\u201d, the selection should be based on the type of system in which it will be used.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-db43d1b8\"><strong>Rubber Expansion Joint<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-c2de239d\">Rubber expansion joints can be preferred, particularly in applications where damping vibration and mechanical movements is important.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-22a3d4f8\">For example:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>pump connections<\/li>\n\n\n\n<li>HVAC systems<\/li>\n\n\n\n<li>water piping systems<\/li>\n\n\n\n<li>various mechanical systems<\/li>\n<\/ul>\n\n<p class=\"wp-block-wd-paragraph wd-450e0fab\">can be used in applications such as these.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-3f1a9c03\"><strong>Metal Expansion Joint<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-26256cf1\">Metal bellows expansion joints can be considered for applications involving high temperatures and various types of mechanical movement.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-b9e014e5\">In particular:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>steam lines<\/li>\n\n\n\n<li>hot fluid lines<\/li>\n\n\n\n<li>high-temperature processes<\/li>\n\n\n\n<li>industrial piping systems<\/li>\n<\/ul>\n\n<p class=\"wp-block-wd-paragraph wd-df271a83\">may be preferred for applications such as these, depending on the technical specifications of the product.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-7387eb3e\">The UNOX product range includes both rubber expansion joints and various metal\/external pressure expansion joint options.<\/p>\n\n<div class=\"wp-block-wd-divider wd-style-line wd-5c8947ac\"><\/div>\n\n<p class=\"wp-block-wd-paragraph wd-484ab5a0\"><strong>5 Common Mistakes When Selecting an Expansion Joint<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-cdb720cc\"><strong>1. Considering Only the DN Size<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-a34e8d5e\">Even if the DN size is correct, the product may not be suitable if the pressure, temperature, or fluid is incompatible.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-dcfae5e5\"><strong>2. Failing to Check the Operating Temperature<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-27cd9f85\">Especially in hot water, steam, and high-temperature processes, the operating temperature must not be overlooked.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-4e49b19e\"><strong>3. Failing to Compare the PN Rating with the System Pressure<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-6c3b1478\">The pressure capacity of the expansion joint should be evaluated in conjunction with the system operating conditions.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-c527d4f6\"><strong>4. Selecting a Product Without Calculating the Required Movement<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-a4025e39\">The movement capacity of the expansion joint must be compatible with the actual movement requirements of the piping system.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-c5edbed9\"><strong>5. Failing to Consider the Installation Conditions<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-8b4a9b72\">The product\u2019s connection type, installation space, fixed points, and guiding system are also part of the selection process.<\/p>\n\n<div class=\"wp-block-wd-divider wd-style-line wd-9d93b346\"><\/div>\n\n<p class=\"wp-block-wd-paragraph wd-d6d030ff\"><strong>What Information Is Required to Select the Right Expansion Joint?<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-8971e01b\">When requesting a quotation or conducting technical product research for an expansion joint, preparing the following information will significantly facilitate the selection process:<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Technical Data<\/strong><\/td><td><strong>Example<\/strong><\/td><\/tr><\/thead><tbody><tr><td>Nominal diameter<\/td><td>DN100<\/td><\/tr><tr><td>Pressure<\/td><td>PN16<\/td><\/tr><tr><td>Operating temperature<\/td><td>+180 \u00b0C<\/td><\/tr><tr><td>Fluid<\/td><td>Steam<\/td><\/tr><tr><td>Connection<\/td><td>Flanged<\/td><\/tr><tr><td>Movement<\/td><td>\u00b130 mm<\/td><\/tr><tr><td>Application point<\/td><td>Boiler outlet<\/td><\/tr><tr><td>Pipe type<\/td><td>Industrial process<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-wd-paragraph wd-ab8e61b1\">Once this information is available, instead of simply searching for \u201cDN100 expansion joint price,\u201d you can research an expansion joint that is suitable for the specific application.<\/p>\n\n<div class=\"wp-block-wd-divider wd-style-line wd-72589281\"><\/div>\n\n<p class=\"wp-block-wd-paragraph wd-5fdf08e3\"><strong>Why Is Technical Support Important When Selecting an Expansion Joint?<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-09e8727b\">A compensator should not be regarded as a simple connection element that merely connects two flanges in a pipeline.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-e4125ea7\">The product\u2019s<\/p>\n\n<ul class=\"wp-block-list\">\n<li>pressure,<\/li>\n\n\n\n<li>temperature,<\/li>\n\n\n\n<li>fluid<\/li>\n\n\n\n<li>movement<\/li>\n\n\n\n<li>connection<\/li>\n\n\n\n<li>material<\/li>\n\n\n\n<li>installation<\/li>\n<\/ul>\n\n<p class=\"wp-block-wd-paragraph wd-7c8e4d90\">The conditions should be evaluated together.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-5f9bfae7\">Especially in high-temperature, high-pressure, or critical process lines, it is important to make the selection based on the product\u2019s technical documentation.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-f1b49fec\">UNOX\u2019s <a href=\"https:\/\/unox.com.tr\/en\/?s=+kardan+mafsall%C4%B1+deprem+kompansat%C3%B6rleri&amp;post_type=product\" data-type=\"link\" data-id=\"https:\/\/unox.com.tr\/en\/?s=+kardan+mafsall%C4%B1+deprem+kompansat%C3%B6rleri&amp;post_type=product\">compensator product <\/a>range includes various solutions, such as threaded rubber, flanged rubber, externally pressurized flanged, externally pressurized weld-neck, metal bellows, and gimbal-type seismic expansion joints.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-4e27a304\">This variety also demonstrates that compensator selection should not be based on a single standard product.<\/p>\n\n<div class=\"wp-block-wd-divider wd-style-line wd-64eaa7aa\"><\/div>\n\n<p class=\"wp-block-wd-paragraph wd-eb4e57b2\"><strong>What Information Should You Provide to UNOX to Find the Right Compensator?<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-6d8fc480\">If you are looking for a compensator for your project, sharing the following information can provide a sufficient starting point:<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-f14a6ad7\">DN:<br\/>PN \/ Operating Pressure:<br\/>Operating Temperature:<br\/>Fluid:<br\/>Connection Type:<br\/>Expected Movement:<br\/>Application Area:<br\/>Photo or Technical Information of the Existing Compensator, if Available:<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-85c41e2b\">Based on this information, the technical specifications of the product suitable for your application can be evaluated.<\/p>\n\n<p class=\"wp-block-wd-paragraph wd-46e7575b\"><strong>The right compensator is not simply one with the correct diameter; it is a compensator capable of meeting the system\u2019s pressure, temperature, fluid, and movement conditions as a whole.<\/strong><\/p>\n\n<p class=\"wp-block-wd-paragraph wd-fb3f2ee1\">You can explore the solution suitable for your application based on UNOX\u2019s existing range of compensator products and technical options.<\/p>\n\n<div class=\"wp-block-wd-gallery wd-grid-g wd-caption-mask wd-d7d34f43\" style=\"--wd-col-lg:4;--wd-col-md:4;--wd-col-sm:1;--wd-gap-lg:20px;--wd-gap-sm: 10px;\">\n<div class=\"wp-block-wd-gallery-item wd-col wd-9d46008c\"><div class=\"wd-block-image\"><img decoding=\"async\" width=\"1600\" height=\"1600\" class=\"wp-image-72046\" src=\"https:\/\/unox.com.tr\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/unox.com.tr\/wp-content\/uploads\/2020\/09\/metal-koruklu-limit-rotlu-flansli-kompansator.webp\" alt=\"Metal K&#xF6;r&#xFC;kl&#xFC; Kompansat&#xF6;r\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/unox.com.tr\/wp-content\/uploads\/2020\/09\/metal-koruklu-limit-rotlu-flansli-kompansator.webp 1600w, https:\/\/unox.com.tr\/wp-content\/uploads\/2020\/09\/metal-koruklu-limit-rotlu-flansli-kompansator-400x400.webp 400w, https:\/\/unox.com.tr\/wp-content\/uploads\/2020\/09\/metal-koruklu-limit-rotlu-flansli-kompansator-150x150.webp 150w, https:\/\/unox.com.tr\/wp-content\/uploads\/2020\/09\/metal-koruklu-limit-rotlu-flansli-kompansator-768x768.webp 768w, https:\/\/unox.com.tr\/wp-content\/uploads\/2020\/09\/metal-koruklu-limit-rotlu-flansli-kompansator-1536x1536.webp 1536w, https:\/\/unox.com.tr\/wp-content\/uploads\/2020\/09\/metal-koruklu-limit-rotlu-flansli-kompansator-300x300.webp 300w, https:\/\/unox.com.tr\/wp-content\/uploads\/2020\/09\/metal-koruklu-limit-rotlu-flansli-kompansator-600x600.webp 600w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/div><\/div>\n\n\n\n<div class=\"wp-block-wd-gallery-item wd-col wd-069c4684\"><div class=\"wd-block-image\"><img decoding=\"async\" class=\"wp-image-69277\" src=\"https:\/\/unox.com.tr\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/unox.com.tr\/wp-content\/uploads\/\" alt=\"Metal K&#xF6;r&#xFC;kl&#xFC; Kompansat&#xF6;r\" title=\"\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-wd-gallery-item wd-col wd-e14ab367\"><div class=\"wd-block-image\"><img decoding=\"async\" class=\"wp-image-69213\" src=\"https:\/\/unox.com.tr\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/unox.com.tr\/wp-content\/uploads\/\" alt=\"Flan&#x15F;l&#x131; Kau&#xE7;uk Kompansat&#xF6;r\" title=\"\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-wd-gallery-item wd-col wd-b7047bf1\"><div class=\"wd-block-image\"><img decoding=\"async\" class=\"wp-image-69249\" src=\"https:\/\/unox.com.tr\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/unox.com.tr\/wp-content\/uploads\/\" alt=\"Paslanmaz Flan&#x15F;l&#x131; Kau&#xE7;uk Kompansat&#xF6;r\" title=\"\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-wd-gallery-item wd-col wd-5ef3794d\"><div class=\"wd-block-image\"><img decoding=\"async\" class=\"wp-image-69270\" src=\"https:\/\/unox.com.tr\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/unox.com.tr\/wp-content\/uploads\/\" alt=\"Metal K&#xF6;r&#xFC;kl&#xFC; Kompansat&#xF6;r\" title=\"\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-wd-gallery-item wd-col wd-c41fed69\"><div class=\"wd-block-image\"><img decoding=\"async\" width=\"1600\" height=\"1600\" class=\"wp-image-69284\" src=\"https:\/\/unox.com.tr\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/unox.com.tr\/wp-content\/uploads\/2020\/09\/batwech_metal-koruklu-kompansator-2.webp\" alt=\"Metal K&#xF6;r&#xFC;kl&#xFC; Kompansat&#xF6;r\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/unox.com.tr\/wp-content\/uploads\/2020\/09\/batwech_metal-koruklu-kompansator-2.webp 1600w, https:\/\/unox.com.tr\/wp-content\/uploads\/2020\/09\/batwech_metal-koruklu-kompansator-2-400x400.webp 400w, https:\/\/unox.com.tr\/wp-content\/uploads\/2020\/09\/batwech_metal-koruklu-kompansator-2-150x150.webp 150w, https:\/\/unox.com.tr\/wp-content\/uploads\/2020\/09\/batwech_metal-koruklu-kompansator-2-768x768.webp 768w, https:\/\/unox.com.tr\/wp-content\/uploads\/2020\/09\/batwech_metal-koruklu-kompansator-2-1536x1536.webp 1536w, https:\/\/unox.com.tr\/wp-content\/uploads\/2020\/09\/batwech_metal-koruklu-kompansator-2-300x300.webp 300w, https:\/\/unox.com.tr\/wp-content\/uploads\/2020\/09\/batwech_metal-koruklu-kompansator-2-600x600.webp 600w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/div><\/div>\n\n\n\n<div class=\"wp-block-wd-gallery-item wd-col wd-ebb65619\"><div class=\"wd-block-image\"><img decoding=\"async\" class=\"wp-image-69220\" src=\"https:\/\/unox.com.tr\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/unox.com.tr\/wp-content\/uploads\/\" alt=\"Flan&#x15F;l&#x131; Kau&#xE7;uk Kompansat&#xF6;r\" title=\"\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-wd-gallery-item wd-col wd-b73cbd3f\"><div class=\"wd-block-image\"><img decoding=\"async\" width=\"1600\" height=\"1600\" class=\"wp-image-69263\" src=\"https:\/\/unox.com.tr\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/unox.com.tr\/wp-content\/uploads\/2022\/10\/batwech_cfkk.webp\" alt=\"Paslanmaz Flan&#x15F;l&#x131; Kau&#xE7;uk Kompansat&#xF6;r\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/unox.com.tr\/wp-content\/uploads\/2022\/10\/batwech_cfkk.webp 1600w, https:\/\/unox.com.tr\/wp-content\/uploads\/2022\/10\/batwech_cfkk-400x400.webp 400w, https:\/\/unox.com.tr\/wp-content\/uploads\/2022\/10\/batwech_cfkk-150x150.webp 150w, https:\/\/unox.com.tr\/wp-content\/uploads\/2022\/10\/batwech_cfkk-768x768.webp 768w, https:\/\/unox.com.tr\/wp-content\/uploads\/2022\/10\/batwech_cfkk-1536x1536.webp 1536w, https:\/\/unox.com.tr\/wp-content\/uploads\/2022\/10\/batwech_cfkk-300x300.webp 300w, https:\/\/unox.com.tr\/wp-content\/uploads\/2022\/10\/batwech_cfkk-600x600.webp 600w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/div><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>How to Select a Compensator? A Guide to Choosing the Right Product Based on DN, PN, Temperature, and Fluid So,<\/p>\n","protected":false},"author":1,"featured_media":69251,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1715],"tags":[],"class_list":["post-72817","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-unox-blog"],"_links":{"self":[{"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/posts\/72817","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/comments?post=72817"}],"version-history":[{"count":3,"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/posts\/72817\/revisions"}],"predecessor-version":[{"id":72820,"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/posts\/72817\/revisions\/72820"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/media\/69251"}],"wp:attachment":[{"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/media?parent=72817"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/categories?post=72817"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/tags?post=72817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}