{"id":873,"date":"2025-11-14T05:06:30","date_gmt":"2025-11-14T05:06:30","guid":{"rendered":"https:\/\/service.soletksolar.com\/?page_id=873"},"modified":"2026-10-09T03:58:55","modified_gmt":"2026-10-09T03:58:55","slug":"flat-plate-solar-collector","status":"publish","type":"page","link":"https:\/\/service.soletksolar.com\/nl\/products\/solar-collector\/flat-plate-solar-collector\/","title":{"rendered":"Vlakkeplaat zonnecollector"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"873\" class=\"elementor elementor-873\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-049adb4 e-con-full e-flex e-con e-parent\" data-id=\"049adb4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-459ffb1 elementor-widget__width-initial elementor-widget elementor-widget-html\" data-id=\"459ffb1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<style>\n.slkflat26{font-family:Inter,\"Segoe UI\",Arial,sans-serif;color:#203047;font-size:16px;line-height:1.72}.slkflat26 *{box-sizing:border-box}.slkflat26 a{color:#bc581e}.slkflat26 h1,.slkflat26 h2,.slkflat26 h3{font-weight:800;line-height:1.2;margin:0 0 16px}.slkflat26 h1{font-size:clamp(32px,4.3vw,53px);color:#fff}.slkflat26 h2{font-size:clamp(25px,2.9vw,36px);color:#172d42}.slkflat26 h3{font-size:19px;color:#1d3347}.slkflat26 p{margin:0 0 17px}.slkflat26 .inner{max-width:1160px;margin:auto;padding:0 22px}.slkflat26 .hero{background:linear-gradient(115deg,#0c1c2b,#1b3b58);color:#e8f1f8;padding:64px 0}.slkflat26 .eyebrow{font-size:13px;color:#ffb07d;letter-spacing:.09em;text-transform:uppercase;font-weight:700;margin-bottom:12px}.slkflat26 .heroGrid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}.slkflat26 .hero p{font-size:18px}.slkflat26 .photo{background:#fff;border-radius:12px;padding:12px;margin:0}.slkflat26 .photo img{width:100%;height:350px;object-fit:contain;display:block}.slkflat26 figcaption{color:#52617a;font-size:12px}.slkflat26 .btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;background:#d96722;color:#fff!important;font-size:15px;font-weight:750;border-radius:8px;padding:12px 20px;text-decoration:none!important;margin:8px 10px 8px 0}.slkflat26 .altbtn{background:transparent;border:1px solid #b1c8d9}.slkflat26 .block{padding:58px 0}.slkflat26 .shade{background:#f5f8fa}.slkflat26 .cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.slkflat26 .twocol{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.slkflat26 .card{padding:22px;background:#fff;border:1px solid #dbe5ec;border-radius:12px}.slkflat26 .card p:last-child{margin-bottom:0}.slkflat26 .scroll{overflow-x:auto}.slkflat26 table{border-collapse:collapse;width:100%;min-width:630px;font-size:15px}.slkflat26 td,.slkflat26 th{border:1px solid #dae3ed;padding:12px 15px;vertical-align:top}.slkflat26 th{color:#fff;text-align:left;background:#1c3a54}.slkflat26 .note{background:#fff5e9;border-left:4px solid #d96722;padding:14px;color:#563d27;font-size:14px}.slkflat26 .rfq{background:#132c43;color:#fff;border-radius:14px;padding:26px}.slkflat26 .rfq h2{color:#fff}.slkflat26 details{margin:12px 0;padding:13px 16px;border:1px solid #dce5ec;border-radius:8px;background:#fff}.slkflat26 summary{cursor:pointer;font-weight:700}.slkflat26 details p{margin:10px 0 0}.slkflat26 .bread{color:#c8d8e5;font-size:13px}.slkflat26 .bread a{color:#d9eaf6}.slkflat26 ul{padding-left:20px}@media(max-width:800px){.slkflat26 .heroGrid,.slkflat26 .cards,.slkflat26 .twocol{grid-template-columns:1fr}.slkflat26 .hero{padding:40px 0}.slkflat26 .block{padding:38px 0}.slkflat26 .photo img{height:260px}}\n<\/style><article class=\"slkflat26\"><div class=\"hero\"><div class=\"inner\"><nav class=\"bread\" aria-label=\"Navigatiepad\"><a href=\"\/nl\/\">Home<\/a> \/ <a href=\"\/nl\/products\/solar-collector\/\">Zonnecollectoren<\/a> \/ Flat Plate Solar Collector<\/nav><div class=\"heroGrid\"><div><div class=\"eyebrow\">SOLETKS \u00b7 Solar Thermal Collector Supply<\/div><h1>Flat Plate Solar Collectors for Hot Water Projects<\/h1><p>Source flat-plate solar thermal collectors for engineered hot-water systems. Compare models using actual heat-output data, hydraulic limits, mounting requirements and documented test conditions \u2014 not one headline efficiency value.<\/p><a class=\"btn\" href=\"https:\/\/wa.me\/8615318896990?text=Hello%20SOLETKS%2C%20I%20am%20sourcing%20flat%20plate%20solar%20collectors.%20Please%20send%20the%20current%20model%20datasheet%2C%20pressure%20and%20performance%20data%2C%20and%20quotation.%20Country%3A%20.%20Application%3A%20.%20Collector%20quantity%20or%20area%3A%20.\" target=\"_blank\" rel=\"noopener noreferrer\">Request Collector TDS &amp; Quote on WhatsApp \u2197<\/a><a class=\"btn altbtn\" href=\"#slk-flat-specs\">Buyer Specifications \u2193<\/a><\/div><figure class=\"photo\"><img fetchpriority=\"high\" src=\"https:\/\/service.soletksolar.com\/wp-content\/uploads\/2025\/11\/flat-plate-solar-collector.jpg\" width=\"1653\" height=\"2336\" loading=\"eager\" decoding=\"async\" alt=\"SOLETKS flat plate solar collector product photograph from its own media library\"\/><figcaption>SOLETKS flat-plate collector product image. Confirm model, size and connection details for an order.<\/figcaption><\/figure><\/div><\/div><\/div><\/article>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-af74d44 e-con-full e-flex e-con e-parent\" data-id=\"af74d44\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-451d194 elementor-widget__width-initial elementor-widget elementor-widget-html\" data-id=\"451d194\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<section class=\"slkflat26 block\"><div class=\"inner\"><h2>Flat Plate Collector or Complete Solar Water Heater?<\/h2><p>A <strong>flat plate solar collector<\/strong> is a solar thermal heat-collection component. Its glazing, selective absorber and circulation channels transfer captured solar energy into a fluid loop. It does not, by itself, include a domestic hot-water tank, backup heater, circulation controls or all installation accessories.<\/p><p>When your procurement scope includes a separate storage tank, pump controls and system integration, see <a href=\"\/nl\/products\/solar-water-heater\/flat-plate-split-solar-water-heater\/\">Flat Plate Split Solar Water Heater<\/a>. For commercial load-based design, see <a href=\"\/nl\/products\/commercial-industrial-solar-hot-water-system\/\">Commercial &amp; Industrial Solar Hot Water Systems<\/a>.<\/p><div class=\"cards\"><div class=\"card\"><h3>Collector-only purchasing<\/h3><p>For OEM manufacturers and EPC teams building their own hydraulic and storage systems. Request model TDS, collector area and assembly details.<\/p><\/div><div class=\"card\"><h3>Commercial collector arrays<\/h3><p>For hotels, healthcare buildings, dormitories and industrial preheating. Engineering must confirm loads, array hydraulics and backup.<\/p><\/div><div class=\"card\"><h3>Matched split systems<\/h3><p>For buyers needing collector, remote tank, controls and system-level integration. Review complete system specifications rather than selecting on area alone.<\/p><\/div><\/div><\/div><\/section>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b12ec37 e-con-full e-flex e-con e-parent\" data-id=\"b12ec37\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ee66697 elementor-widget__width-initial elementor-widget elementor-widget-html\" data-id=\"ee66697\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<section class=\"slkflat26 block shade\" id=\"slk-flat-specs\"><div class=\"inner\"><h2>Technical Specifications to Verify Before Ordering<\/h2><p>SOLETKS supplies flat plate collector options; the correct values must come from the selected model's current technical datasheet and applicable test records. Compare products using consistent definitions.<\/p><div class=\"scroll\"><table><thead><tr><th>Required item<\/th><th>Procurement \/ engineering reason<\/th><th>Evidence to request<\/th><\/tr><\/thead><tbody><tr><td>Exact model and dimensions<\/td><td>Roof layout, support structure, access and packaging<\/td><td>Model code, overall dimensions, dry and filled weight<\/td><\/tr><tr><td>Gross vs aperture area<\/td><td>Efficiency and energy output are not comparable across different area bases<\/td><td>Separate gross, aperture and absorber areas in m\u00b2<\/td><\/tr><tr><td>Thermal performance<\/td><td>Output varies with incident solar radiation and temperature difference<\/td><td>\u03b7\u2080, a\u2081, a\u2082, test conditions, reference area and, where available, yield data<\/td><\/tr><tr><td>Pressure drop \/ flow<\/td><td>Pipe routing and pump sizing<\/td><td>Recommended flow and pressure-drop curve for the applicable fluid and conditions<\/td><\/tr><tr><td>Rated pressure \/ connections<\/td><td>Operating safety and hydraulic compatibility<\/td><td>Model-specific pressure limits and connection sizes<\/td><\/tr><tr><td>Materials and approved fluids<\/td><td>Water quality, corrosion, freezing and service life<\/td><td>Absorber, glazing, frame, sealing, tubing and heat-transfer fluid guidance<\/td><\/tr><tr><td>Testing and documentation<\/td><td>Compliance and QA validation for the receiving market<\/td><td>Model-linked test reports, certificates if applicable, installation and packing documents<\/td><\/tr><\/tbody><\/table><\/div><p class=\"note\">Do not assume values, certification or warranties from other models. The supplied datasheet and project conditions determine operating suitability. No product-specific performance numbers are invented on this page.<\/p><\/div><\/section>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cacee18 e-con-full e-flex e-con e-parent\" data-id=\"cacee18\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-af0ced3 elementor-widget__width-initial elementor-widget elementor-widget-html\" data-id=\"af0ced3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<section class=\"slkflat26 block\"><div class=\"inner\"><h2>How EPC Buyers Should Select Flat Plate Collectors<\/h2><div class=\"twocol\"><div><h3>Performance across real operating temperatures<\/h3><p>Optical efficiency alone cannot establish annual useful yield. Request a test-backed performance curve and check the collector-to-ambient temperature difference, irradiation and the required water temperature. Compare options using the same area basis.<\/p><h3>Array hydraulics and installation<\/h3><p>For collector banks, evaluate flow balancing, pressure drop, pipe expansion, roof load, snow\/wind exposure, shading and maintenance access. See our <a href=\"\/nl\/solar-collector-hydraulic-pressure-drop\/\">hydraulic pressure drop guide<\/a>.<\/p><\/div><div><h3>Flat plate versus evacuated tube<\/h3><p>Both technologies may be relevant; actual project economics depend on tested thermal performance, climate, operating temperature, system design and maintenance. Read <a href=\"\/nl\/evacuated-tube-vs-flat-plate-solar-collector\/\">Flat Plate vs Evacuated Tube Selection Guide<\/a>.<\/p><h3>Technical buyer resources<\/h3><p><a href=\"\/nl\/durable-flat-plate-solar-collectors-selection-criteria\/\">Collector durability criteria<\/a>, <a href=\"\/nl\/large-size-flat-plate-solar-collector-dimensions\/\">large-format collector layout<\/a>, and <a href=\"\/nl\/products\/solar-collector\/large-size-flat-plate-solar-collector\/\">large-size model options<\/a> help define a correct RFQ.<\/p><\/div><\/div><h2>Frequently Asked Questions<\/h2><details><summary>Can I buy a collector without a tank?<\/summary><p>Collector-only supply is a separate purchase scope from a split solar water heater. Confirm model, quantity, manifolds, connections and accessories with SOLETKS before ordering.<\/p><\/details><details><summary>Are these collectors suitable for cold climates?<\/summary><p>Cold-climate suitability requires evaluation of operating temperature, freeze-protection design, heat-transfer fluid and local environmental requirements. It is not guaranteed by product name alone.<\/p><\/details><details><summary>Which certificates are available?<\/summary><p>Certification scope depends on the selected model and market. Request current model-matched evidence and applicable test reports instead of assuming all models share the same certifications.<\/p><\/details><div class=\"rfq\"><h2>Request Technical Data or an OEM Quotation<\/h2><p>Send your country, application, target collector area\/quantity, design operating temperature and expected delivery scope. Ask for a current TDS, hydraulic data, packing details, available testing and lead-time information.<\/p><a class=\"btn\" href=\"https:\/\/wa.me\/8615318896990?text=Hello%20SOLETKS%2C%20I%20am%20sourcing%20flat%20plate%20solar%20collectors.%20Please%20send%20the%20current%20model%20datasheet%2C%20pressure%20and%20performance%20data%2C%20and%20quotation.%20Country%3A%20.%20Application%3A%20.%20Collector%20quantity%20or%20area%3A%20.\" target=\"_blank\" rel=\"noopener noreferrer\">Send Flat Plate Collector RFQ via WhatsApp \u2197<\/a><p style=\"color:#cbd8e4;font-size:13px;margin-top:12px\">Direct WhatsApp inquiry. No form submission required.<\/p><\/div><\/div><\/section>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Home \/ Solar Collectors \/ Flat Plate Solar Collector SOLETKS \u00b7 Solar Thermal Collector Supply Flat Plate Solar Collectors for Hot Water Projects Source flat-plate solar thermal collectors for engineered hot-water systems. Compare models using actual heat-output data, hydraulic limits, mounting requirements and documented test conditions \u2014 not one headline efficiency value. Request Collector TDS [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":348,"parent":752,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"footnotes":""},"class_list":["post-873","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/service.soletksolar.com\/nl\/wp-json\/wp\/v2\/pages\/873","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/service.soletksolar.com\/nl\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/service.soletksolar.com\/nl\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/service.soletksolar.com\/nl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/service.soletksolar.com\/nl\/wp-json\/wp\/v2\/comments?post=873"}],"version-history":[{"count":4,"href":"https:\/\/service.soletksolar.com\/nl\/wp-json\/wp\/v2\/pages\/873\/revisions"}],"predecessor-version":[{"id":1845,"href":"https:\/\/service.soletksolar.com\/nl\/wp-json\/wp\/v2\/pages\/873\/revisions\/1845"}],"up":[{"embeddable":true,"href":"https:\/\/service.soletksolar.com\/nl\/wp-json\/wp\/v2\/pages\/752"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/service.soletksolar.com\/nl\/wp-json\/wp\/v2\/media\/348"}],"wp:attachment":[{"href":"https:\/\/service.soletksolar.com\/nl\/wp-json\/wp\/v2\/media?parent=873"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}