{"id":11679,"date":"2024-03-26T16:59:54","date_gmt":"2024-03-26T15:59:54","guid":{"rendered":"https:\/\/felder.projekt.link\/refrigeration-and-air-conditioning\/"},"modified":"2026-09-14T10:48:30","modified_gmt":"2026-09-14T08:48:30","slug":"refrigeration-and-air-conditioning","status":"publish","type":"page","link":"https:\/\/felder.projekt.link\/en\/refrigeration-and-air-conditioning\/","title":{"rendered":"Refrigeration and Air Conditioning"},"content":{"rendered":"\n\n<section class=\"block_header position-relative\">\n\t\t\t<div class=\"header-background left \"><\/div>\n\t\n\n\t<div class=\"header-background right overflow-hidden\">\n\t\t\n\t\t   <img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"2560\" src=\"https:\/\/felder.projekt.link\/wp-content\/uploads\/2025\/10\/Kaelte-und-Klima-scaled.jpg\" class=\"img-object-cover\" alt=\"\" srcset=\"https:\/\/felder.projekt.link\/wp-content\/uploads\/2025\/10\/Kaelte-und-Klima-scaled.jpg 2560w, https:\/\/felder.projekt.link\/wp-content\/uploads\/2025\/10\/Kaelte-und-Klima-300x300.jpg 300w, https:\/\/felder.projekt.link\/wp-content\/uploads\/2025\/10\/Kaelte-und-Klima-scaled-100x100.jpg 100w, https:\/\/felder.projekt.link\/wp-content\/uploads\/2025\/10\/Kaelte-und-Klima-500x500.jpg 500w, https:\/\/felder.projekt.link\/wp-content\/uploads\/2025\/10\/Kaelte-und-Klima-1024x1024.jpg 1024w, https:\/\/felder.projekt.link\/wp-content\/uploads\/2025\/10\/Kaelte-und-Klima-768x768.jpg 768w, https:\/\/felder.projekt.link\/wp-content\/uploads\/2025\/10\/Kaelte-und-Klima-1536x1536.jpg 1536w, https:\/\/felder.projekt.link\/wp-content\/uploads\/2025\/10\/Kaelte-und-Klima-2048x2048.jpg 2048w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/>\t\t\t<\/div>\n\t\t\n<div class=\"container py-block-100 position-relative\">\n\t<div class=\"row\">\n\t<div class=\"col-12 col-md-5 text-flow\">\n\t\t<h1><strong>Refrigeration and Air Conditioning<\/strong><\/h1>\n<p>Depending on the requirements, a combination of copper or silver brazing alloys\u2014selected to suit the material\u2014is used along with the appropriate brazing flux. Stainless steel and aluminum materials place higher demands on the brazing process and require the use of special brazing alloys and fluxes designed for highly corrosion-resistant materials. Brazed joints between material combinations\u2014such as copper and stainless steel\u2014can be achieved using silver brazing alloys with a high silver content.  <\/p>\n\t\t    <a href=\"https:\/\/felder.projekt.link\/en\/products\/\" class=\"button\" target=\"_self\">Discover Products<\/a>\n\t\t<\/div>\n\t\t\t<\/div><\/div>\n<\/section>\n\n\n<section class=\"block_quick-links position-relative overflow-hidden py-block-60 bg-dark\">\n\n\t<div class=\"container\">\n\t<div class=\"row mb-block-24\">\n\t\t<div class=\"col-12 c-white text-center\"><h4>Select a soldering method for refrigeration and air conditioning applications<\/h4><\/div>\n\t\t<\/div>\n\t\t<div class=\"row\">\n\t\t<div class=\"col-12\">\n\n    <div class=\"quick-links-wrapper d-flex flex-wrap justify-content-center\">\n\t\t\t\t\n    \t\t\n\t\t<a class=\"quick-links-link d-flex align-items-center\" href=\"https:\/\/felder.projekt.link\/en\/refrigeration-and-air-conditioning\/\" target=\"_self\">Brazing<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\">\n  <g style=\"isolation:isolate\">\n    <path data-name=\"Pfad 1094\" d=\"M0 0h24v24H0Z\" fill=\"none\"\/>\n    <path data-name=\"Pfad 1095\" d=\"M19 19H5V5h7V3H5a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2.006 2.006 0 0 0 2-2v-7h-2ZM14 3v2h3.59l-9.83 9.83 1.41 1.41L19 6.41V10h2V3Z\" fill=\"#049ee3\"\/>\n  <\/g>\n<\/svg><\/a>\n        \n    \n    <\/div>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n\t\n<\/section><section class=\"block_linkkarten position-relative overflow-hidden my-block-120\">\n  <div class=\"container\">\n    <div class=\"row justify-content-center\">\n      \t\t\t\n\t\t\t<div class=\"col-12 col-lg mb-3\">\n\t\t\t<div class=\"linkkarte text-flow\" style=\"background-color: #EBEBEB\">\n\t\t\t\t<div class=\"mb-auto text-flow\"><h4 class=\"p1\">Certified Environmental Management System in accordance with DIN ISO 14001<\/h4>\n<p class=\"p1\">FELDER GMBH places great importance on the responsible use of natural resources. Through our ISO 14001 certification, we commit to regularly demonstrating our active commitment to the environment and nature in an official and transparent manner. <\/p>\n<\/div>\n\t\t\t\t\t\t\t\t    <a class=\"button button--white button--hover-dark\" href=\"https:\/\/felder.projekt.link\/en\/sustainability\/environmental-protection\/\" target=\"_self\">Learn More<\/a>\n\t\t\t\t\n\t\t\t\t<\/div>\n\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n      \t\t\t\n\t\t\t<div class=\"col-12 col-lg mb-3\">\n\t\t\t<div class=\"linkkarte text-flow\" style=\"background-color: #EBEBEB\">\n\t\t\t\t<div class=\"mb-auto text-flow\"><h4 class=\"p1\">Custom Inquiries<\/h4>\n<p class=\"p1\">Our experienced team is here to provide you with expert advice on your specific inquiries. We understand your individual needs and work closely with you to develop customized solutions that meet your requirements. <\/p>\n<\/div>\n\t\t\t\t\t\t\t\t    <a class=\"button button--white button--hover-dark\" href=\"https:\/\/felder.projekt.link\/en\/contact\/\" target=\"_self\">Get in touch<\/a>\n\t\t\t\t\n\t\t\t\t<\/div>\n\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n      \t\t\t\n\t\t\t<div class=\"col-12 col-lg mb-3\">\n\t\t\t<div class=\"linkkarte text-flow\" style=\"background-color: #EBEBEB\">\n\t\t\t\t<div class=\"mb-auto text-flow\"><h4 class=\"p1\">FELDER Recycling<\/h4>\n<p class=\"p1\">When it comes to the metal \u201ctin,\u201d FELDER GMBH ranks among the top three companies in Germany in terms of the use of recycled raw materials. FELDER Recycling specializes exclusively in the recycling of tin-based solder waste and has been certified as a specialized waste management company since June 2000. <\/p>\n<\/div>\n\t\t\t\t\t\t\t\t    <a class=\"button button--white button--hover-dark\" href=\"https:\/\/felder.projekt.link\/service\/recycling\/\" target=\"_self\">Learn More<\/a>\n\t\t\t\t\n\t\t\t\t<\/div>\n\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n          <\/div>\n  <\/div>\n<\/section>\n\n\n<section class=\"block_product-highlights block_quick-links-slider position-relative overflow-hidden py-block-120\">\n\n  <div class=\"container\">\n    <div class=\"row mb-block-80 align-items-end justify-content-between\">\n      <div class=\"col-12 col-md-12 text-flow\"><h3>Product Highlights in the Refrigeration and Air Conditioning Sector<\/h3>\n<\/div>\n      <div class=\"col-12 col-md-auto text-end\">      <\/div>\n    <\/div>\n    <div class=\"row\">\n      <div class=\"col-12\">\n\t<div class=\"product-grid slider\">\n\n\n    <a href=\"https:\/\/felder.projekt.link\/en\/produkt\/flux-paste-for-silver-brazing-alloys-cufe-nr-1\/?attribute_pa_gebindegrose=0-100-kg\" class=\"product-card\">\n\n      <div class=\"product-card-image\">\n        <img\n          src=\"https:\/\/felder.projekt.link\/files\/produktfotos\/261000501_2048px_72dpi.jpg\"\n          data-felder-src=\"https:\/\/felder.projekt.link\/files\/produktfotos\/261000501_2048px_72dpi.jpg\"\n          alt=\"Flux paste for silver brazing alloys &#8220;CuFe Nr. 1&#8221;\"\n          class=\"produktfoto-square felder-cdn-img\"\n          loading=\"lazy\"\n          decoding=\"async\"\n          onerror=\"this.onerror=null;this.removeAttribute('srcset');this.removeAttribute('sizes');this.src='https:\/\/felder.projekt.link\/wp-content\/uploads\/2024\/03\/product-placeholder-300x300.jpg';\"\n        \/>\n        <span class=\"product-card-variation-flag\" aria-label=\"Product variants\"><span class=\"product-variation-flag-count\">4<\/span><span class=\"product-variation-flag-label\">product variants<\/span><\/span>      <\/div>\n\n      <div class=\"product-card-content mt-block-24\">\n        <p class=\"fs-16 product-card-title\">\n          <b>Flux paste for silver brazing alloys &#8220;CuFe Nr. 1&#8221;<\/b>\n        <\/p>\n\n                  <p class=\"fs-16 mt-block-8 product-card-excerpt\">\n            for brazing copper, copper alloys, steel and stainless steel          <\/p>\n              <\/div>\n\n    <\/a>\n\n\n    <a href=\"https:\/\/felder.projekt.link\/en\/produkt\/copper-brazing-alloy-cu-rophos-2-cup-279\/?attribute_pa_gebindegrose=1-000-kg&#038;attribute_pa_durchmesser-vierkant=2-000-mm-square\" class=\"product-card\">\n\n      <div class=\"product-card-image\">\n        <img\n          src=\"https:\/\/felder.projekt.link\/files\/produktfotos\/333120501_2048px_72dpi.jpg\"\n          data-felder-src=\"https:\/\/felder.projekt.link\/files\/produktfotos\/333120501_2048px_72dpi.jpg\"\n          alt=\"Copper brazing alloy &#8220;Cu-Rophos 2&#8221; CuP 279\"\n          class=\"produktfoto-square felder-cdn-img\"\n          loading=\"lazy\"\n          decoding=\"async\"\n          onerror=\"this.onerror=null;this.removeAttribute('srcset');this.removeAttribute('sizes');this.src='https:\/\/felder.projekt.link\/wp-content\/uploads\/2024\/03\/product-placeholder-300x300.jpg';\"\n        \/>\n        <span class=\"product-card-variation-flag\" aria-label=\"Product variants\"><span class=\"product-variation-flag-count\">4<\/span><span class=\"product-variation-flag-label\">product variants<\/span><\/span>      <\/div>\n\n      <div class=\"product-card-content mt-block-24\">\n        <p class=\"fs-16 product-card-title\">\n          <b>Copper brazing alloy &#8220;Cu-Rophos 2&#8221; CuP 279<\/b>\n        <\/p>\n\n                  <p class=\"fs-16 mt-block-8 product-card-excerpt\">\n            for flux-free brazing of copper pipelines          <\/p>\n              <\/div>\n\n    <\/a>\n\n\n    <a href=\"https:\/\/felder.projekt.link\/en\/produkt\/copper-brazing-alloy-cu-rophos-15-cup-284\/?attribute_pa_gebindegrose=1-000-kg&#038;attribute_pa_durchmesser-vierkant=2-000-mm-square\" class=\"product-card\">\n\n      <div class=\"product-card-image\">\n        <img\n          src=\"https:\/\/felder.projekt.link\/files\/produktfotos\/33402050_2048px_72dpi.jpg\"\n          data-felder-src=\"https:\/\/felder.projekt.link\/files\/produktfotos\/33402050_2048px_72dpi.jpg\"\n          alt=\"Copper brazing alloy &#8220;Cu-Rophos 15&#8221; CuP 284\"\n          class=\"produktfoto-square felder-cdn-img\"\n          loading=\"lazy\"\n          decoding=\"async\"\n          onerror=\"this.onerror=null;this.removeAttribute('srcset');this.removeAttribute('sizes');this.src='https:\/\/felder.projekt.link\/wp-content\/uploads\/2024\/03\/product-placeholder-300x300.jpg';\"\n        \/>\n        <span class=\"product-card-variation-flag\" aria-label=\"Product variants\"><span class=\"product-variation-flag-count\">4<\/span><span class=\"product-variation-flag-label\">product variants<\/span><\/span>      <\/div>\n\n      <div class=\"product-card-content mt-block-24\">\n        <p class=\"fs-16 product-card-title\">\n          <b>Copper brazing alloy &#8220;Cu-Rophos 15&#8221; CuP 284<\/b>\n        <\/p>\n\n                  <p class=\"fs-16 mt-block-8 product-card-excerpt\">\n            for flux-free brazing of copper pipelines          <\/p>\n              <\/div>\n\n    <\/a>\n\n\n    <a href=\"https:\/\/felder.projekt.link\/en\/produkt\/silver-brazing-alloy-ag-145-um-high\/?attribute_pa_gebindegrose=1-000-kg&#038;attribute_pa_durchmesser-vierkant=2-000-mm\" class=\"product-card\">\n\n      <div class=\"product-card-image\">\n        <img\n          src=\"https:\/\/felder.projekt.link\/files\/produktfotos\/3447205090_2048px_72dpi.jpg\"\n          data-felder-src=\"https:\/\/felder.projekt.link\/files\/produktfotos\/3447205090_2048px_72dpi.jpg\"\n          alt=\"Silver brazing alloy Ag 145 &#8220;UM&#8221;-High\"\n          class=\"produktfoto-square felder-cdn-img\"\n          loading=\"lazy\"\n          decoding=\"async\"\n          onerror=\"this.onerror=null;this.removeAttribute('srcset');this.removeAttribute('sizes');this.src='https:\/\/felder.projekt.link\/wp-content\/uploads\/2024\/03\/product-placeholder-300x300.jpg';\"\n        \/>\n        <span class=\"product-card-variation-flag\" aria-label=\"Product variants\"><span class=\"product-variation-flag-count\">2<\/span><span class=\"product-variation-flag-label\">product variants<\/span><\/span>      <\/div>\n\n      <div class=\"product-card-content mt-block-24\">\n        <p class=\"fs-16 product-card-title\">\n          <b>Silver brazing alloy Ag 145 &#8220;UM&#8221;-High<\/b>\n        <\/p>\n\n                  <p class=\"fs-16 mt-block-8 product-card-excerpt\">\n            45 % silver brazing alloy (L-Ag45Sn) &#8211; flux coated          <\/p>\n              <\/div>\n\n    <\/a>\n\n\n\n<\/div>\n\n      <\/div>\n    <\/div>\n  <\/div>\n<script>\n  const grid = document.querySelector('.product-grid.slider');\n  if (grid) {\n    grid.addEventListener('wheel', function(event) {\n      \/\/ Prevent horizontal scrolling\n      if (event.deltaX !== 0) {\n        event.preventDefault(); \/\/ Stop horizontal scrolling\n        this.scrollTop += event.deltaY; \/\/ Scroll vertically instead\n      }\n    });\n  }\n<\/script>\n\n<\/section>\n<section class=\"block_textmedia position-relative overflow-hidden my-block-120\">\n\n\t<div class=\"container\">\n\t\t<div class=\"row align-items-start text-media-gap justify-content-center\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"col-12 col-md-auto col-lg-10 text-flow\">\n\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t<h2 style=\"text-align: center\"><strong>Soldering Methods in the Refrigeration and Air Conditioning Industry<\/strong><\/h2>\n<p style=\"text-align: center\">Specialized silver and copper brazes are essential for extreme temperature and pressure fluctuations. They ensure durable, resilient joints and the highest level of safety in plant engineering. <\/p>\n<p style=\"text-align: center\">Learn more about brazing and its applications in the refrigeration and HVAC industries!<\/p>\n\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t<\/div>\n\t<\/div>\n\n\t<\/section><section id=\"hart\" class=\"block_textmedia position-relative overflow-hidden my-block-120\">\n\n\t<div class=\"container\">\n\t\t<div class=\"row align-items-start text-media-gap justify-content-between\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"col-12 col-md-auto col-lg-5 text-flow\">\n\n\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"col-12 col-md-auto col-lg-6 text-flow\">\n\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t<h3><strong>Brazing<\/strong><\/h3>\n<p>Silver and copper brazes used in KK technology must withstand the harsher operating conditions typical of this type of plant engineering. Sudden pressure fluctuations, temperature changes, and extremely low temperatures down to -196 \u00b0C may occur. Copper brazing alloys without silver cannot be recommended. The brazing alloys CuP 279 (<sup>Cu-Rophos\u00ae2<\/sup>) and CuP 281a (<sup>Cu-Rophos\u00ae5<\/sup>) are suitable for use down to -50 \u00b0C, CuP 284 (<sup>Cu-Rophos\u00ae15<\/sup>) and CuP 286 (<sup>Cu-Rophos\u00ae18<\/sup>) are suitable for use down to -70 \u00b0C. For lower temperatures, phosphorus-free silver brazes are used. Stainless steels should be brazed with the silver brazing alloy <strong>Ag 156<\/strong>. For all applications mentioned here, the fluxes FH 10<sup>Cu-Rosil\u00ae<\/sup> and <strong>Cu-Fe No. 1 <\/strong>can be <strong>used <\/strong>as needed.      <\/p>\n<p><u>Product Categories:<\/u><\/p>\n<ul>\n<li><a href=\"https:\/\/felder.projekt.link\/en\/produktart\/brazing-alloys\/copper-brazing-alloys\/\">Copper brazing<\/a><\/li>\n<li><a href=\"https:\/\/felder.projekt.link\/en\/produktart\/brazing-alloys\/silver-brazing-alloys\/\">Silver-based brazing alloys<\/a><\/li>\n<li><a href=\"https:\/\/felder.projekt.link\/en\/produktart\/fluxes\/brazing-fluxes\/\">Brazing Flux<\/a><\/li>\n<li><a href=\"https:\/\/felder.projekt.link\/en\/produktart\/accessories\/general-soldering-accessories\/\">General Accessories<\/a><\/li>\n<\/ul>\n\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t<\/div>\n\t<\/div>\n\n\t<\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":2838,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-11679","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/felder.projekt.link\/en\/wp-json\/wp\/v2\/pages\/11679","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/felder.projekt.link\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/felder.projekt.link\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/felder.projekt.link\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/felder.projekt.link\/en\/wp-json\/wp\/v2\/comments?post=11679"}],"version-history":[{"count":1,"href":"https:\/\/felder.projekt.link\/en\/wp-json\/wp\/v2\/pages\/11679\/revisions"}],"predecessor-version":[{"id":11680,"href":"https:\/\/felder.projekt.link\/en\/wp-json\/wp\/v2\/pages\/11679\/revisions\/11680"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/felder.projekt.link\/en\/wp-json\/wp\/v2\/media\/2838"}],"wp:attachment":[{"href":"https:\/\/felder.projekt.link\/en\/wp-json\/wp\/v2\/media?parent=11679"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}