{"id":6700,"date":"2021-12-22T10:50:06","date_gmt":"2021-12-22T09:50:06","guid":{"rendered":"https:\/\/plasticalfa.it\/product\/uncategorized\/multilayer-pipe-uv-resistant-sdr-7-4\/"},"modified":"2022-11-04T12:14:50","modified_gmt":"2022-11-04T11:14:50","slug":"multilayer-pipe-uv-resistant-sdr-7-4","status":"publish","type":"product","link":"https:\/\/plasticalfa.it\/en\/product\/thermohydraulics\/alfaidro-system\/uv-resistant\/multilayer-pipe-uv-resistant-sdr-7-4\/","title":{"rendered":"Multilayer pipe UV RESISTANT SDR 7.4"},"content":{"rendered":"<p><strong><a href=\"https:\/\/plasticalfa.it\/en\/product-category\/thermohydraulics\/alfaidro-system\/\">Alfaidro<\/a>&#8216;s multilayer pipe (UV RESISTANT SDR 7.4)<\/strong> consists of a black UV-stabilised PP-R outer layer and guarantees more than 15 years of resistance to ageing caused by UV radiation. The <strong>glass-fibre<\/strong>-reinforced interlayer reduces linear thermal expansion by approximately 75 per cent compared to single-layer pipes, which translates into fewer brackets (-30 per cent) and therefore less installation time and costs. The inner and outer layers are made from PP-R 100, which boasts high heat and pressure resistance, along with excellent chemical resistance.<\/p>\n<p>Due to its increased dimensional stability, ease of installation (no stripping required before socket welding), and outer layer<br \/>\n<strong>UV-resistant<\/strong>, Alfaidro&#8217;s UV RESISTANT SDR 7.4 multilayer pipe is ideal for installation on the<br \/>\n<strong>outside<\/strong> of buildings and is suitable for <strong>irrigation<\/strong>, <strong>heating<\/strong>, air <strong>conditioning<\/strong>, compressed air, <strong>glycol transport<\/strong>, on means of transportation, and in civil and industrial installations. <\/p>\n<div class=\"row row-collapse row-full-width align-middle\"  id=\"row-1714194083\">\n\n\t<div id=\"col-1516168204\" class=\"col medium-5 small-12 large-5\"  >\n\t\t\t\t<div class=\"col-inner text-left\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-3139335802\" class=\"text\">\n\t\t\n<p><strong><span style=\"color: #333333;\">GENERAL CATALOGS AND TECHNICAL DATA SHEETS IN<\/span><\/strong><br \/>\n\t\t\n<style>\n#text-3139335802 {\n  line-height: 1.25;\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-78916750\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner text-left\"  >\n\t\t\t\n\t\t\t\n<a href=\"https:\/\/plasticalfa.it\/en\/downloads\/#technical\" target=\"_blank\" class=\"button primary\" rel=\"noopener\" >\n\t\t<span>Download area<\/span>\n\t<\/a>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-1806212738\">\n\n\t<div id=\"col-557942583\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-3821383886\" class=\"text\">\n\t\t\n<p><span style=\"color: #555555; font-size: 14.4px;\"><div id=\"tablepress-UVTAF-scroll-wrapper\" class=\"tablepress-scroll-wrapper\">\n\n<table id=\"tablepress-UVTAF\" class=\"tablepress tablepress-id-UVTAF tablepress-responsive\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">VARIANT<\/th><th class=\"column-2\">Outside diameter<\/th><th class=\"column-3\">Internal diameter<\/th><th class=\"column-4\">Nominal thickness<\/th><th class=\"column-5\">DN<\/th><th class=\"column-6\">Water content (l\/m)<\/th><th class=\"column-7\">Weight (Kg\/m)<\/th><th class=\"column-8\">Rod size<\/th><th class=\"column-9\">Pack size<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">UVTAF200<\/td><td class=\"column-2\">20 mm<\/td><td class=\"column-3\">14,4 mm<\/td><td class=\"column-4\">2,8 mm<\/td><td class=\"column-5\">15<\/td><td class=\"column-6\">0,163<\/td><td class=\"column-7\">0,151<\/td><td class=\"column-8\">4 mt<\/td><td class=\"column-9\">120 mt<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">UVTAF250<\/td><td class=\"column-2\">25 mm<\/td><td class=\"column-3\">18 mm<\/td><td class=\"column-4\">3,5 mm<\/td><td class=\"column-5\">20<\/td><td class=\"column-6\">0,254<\/td><td class=\"column-7\">0,236<\/td><td class=\"column-8\">4 mt<\/td><td class=\"column-9\">80 mt<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">UVTAF320<\/td><td class=\"column-2\">32 mm<\/td><td class=\"column-3\">23,2 mm<\/td><td class=\"column-4\">4,4 mm<\/td><td class=\"column-5\">25<\/td><td class=\"column-6\">0,423<\/td><td class=\"column-7\">0,379<\/td><td class=\"column-8\">4 mt<\/td><td class=\"column-9\">48 mt<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">UVTAF400<\/td><td class=\"column-2\">40 mm<\/td><td class=\"column-3\">29 mm<\/td><td class=\"column-4\">5,5 mm<\/td><td class=\"column-5\">32<\/td><td class=\"column-6\">0,660<\/td><td class=\"column-7\">0,589<\/td><td class=\"column-8\">4 mt<\/td><td class=\"column-9\">32 mt<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">UVTAF500<\/td><td class=\"column-2\">50 mm<\/td><td class=\"column-3\">36,2 mm<\/td><td class=\"column-4\">6,9 mm<\/td><td class=\"column-5\">40<\/td><td class=\"column-6\">1,029<\/td><td class=\"column-7\">0,917<\/td><td class=\"column-8\">4 mt<\/td><td class=\"column-9\">24 mt<\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\">UVTAF630<\/td><td class=\"column-2\">63 mm<\/td><td class=\"column-3\">45,8 mm<\/td><td class=\"column-4\">8,6 mm<\/td><td class=\"column-5\">50<\/td><td class=\"column-6\">1,647<\/td><td class=\"column-7\">1,442<\/td><td class=\"column-8\">4 mt<\/td><td class=\"column-9\">12 mt<\/td>\n<\/tr>\n<tr class=\"row-8\">\n\t<td class=\"column-1\">UVTAF750<\/td><td class=\"column-2\">75 mm<\/td><td class=\"column-3\">54,4 mm<\/td><td class=\"column-4\">10,3 mm<\/td><td class=\"column-5\">-<\/td><td class=\"column-6\">2,323<\/td><td class=\"column-7\">2,052<\/td><td class=\"column-8\">4 mt<\/td><td class=\"column-9\">12 mt<\/td>\n<\/tr>\n<tr class=\"row-9\">\n\t<td class=\"column-1\">UVTAF900<\/td><td class=\"column-2\">90 mm<\/td><td class=\"column-3\">65,4 mm<\/td><td class=\"column-4\">12,3 mm<\/td><td class=\"column-5\">65<\/td><td class=\"column-6\">3,358<\/td><td class=\"column-7\">2,936<\/td><td class=\"column-8\">4 mt<\/td><td class=\"column-9\">8 mt<\/td>\n<\/tr>\n<tr class=\"row-10\">\n\t<td class=\"column-1\">UVTAF110<\/td><td class=\"column-2\">110 mm<\/td><td class=\"column-3\">79,8 mm<\/td><td class=\"column-4\">15,1 mm<\/td><td class=\"column-5\">80<\/td><td class=\"column-6\">4,999<\/td><td class=\"column-7\">4,401<\/td><td class=\"column-8\">4 mt<\/td><td class=\"column-9\">8 mt<\/td>\n<\/tr>\n<tr class=\"row-11\">\n\t<td class=\"column-1\">UVTAF1125<\/td><td class=\"column-2\">125 mm<\/td><td class=\"column-3\">90,8 mm<\/td><td class=\"column-4\">17,1 mm<\/td><td class=\"column-5\">-<\/td><td class=\"column-6\">6,472<\/td><td class=\"column-7\">5,662<\/td><td class=\"column-8\">4 mt<\/td><td class=\"column-9\">4 mt<\/td>\n<\/tr>\n<tr class=\"row-12\">\n\t<td class=\"column-1\">UVTAF1160<\/td><td class=\"column-2\">160 mm<\/td><td class=\"column-3\">116,2 mm<\/td><td class=\"column-4\">21,9 mm<\/td><td class=\"column-5\">100<\/td><td class=\"column-6\">10,599<\/td><td class=\"column-7\">9,255<\/td><td class=\"column-8\">4 mt<\/td><td class=\"column-9\">4 mt<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n<\/div><!-- #tablepress-UVTAF from cache --><\/span><br \/>\n\t\t\n<style>\n#text-3821383886 {\n  text-align: center;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<p><strong>*|<\/strong> Inner and outer layer in black PPR on variants: UVTAF900, UVTAF110 <strong>|*<\/strong><\/p>\n<div class=\"row\"  id=\"row-589424858\">\n\n\t<div id=\"col-413543157\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-3998989151\" class=\"text hidden\">\n\t\t\n<p><strong><span style=\"color: #333333;\">AVAILABLE COLOURS:<br \/>\n<\/span><span style=\"font-size: 85%;\"><span style=\"background-color: #3366ff; color: #ffffff;\"> BLU <\/span> &#8211; <span style=\"background-color: #00a859; color: #ffffff;\"> GREEN<\/span><\/span> <\/strong><br \/>\n\t\t\n<style>\n#text-3998989151 {\n  line-height: 1.25;\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row row-collapse row-full-width\"  id=\"row-348901325\">\n\n\t<div id=\"col-5091044\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-1507656525\" class=\"text\">\n\t\t\n<p><span style=\"color: #333333;\"><strong>TEMPERATURES AND OPERATING PRESSURE:<\/strong><\/span><br \/>\n\t\t\n<style>\n#text-1507656525 {\n  line-height: 1;\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row row-full-width align-middle\"  id=\"row-1191561173\">\n\n\t<div id=\"col-10049528\" class=\"col medium-2 small-6 large-2\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<p style=\"text-align: center;\"><strong>SDR 11<br \/>\n<\/strong><span style=\"font-size: 80%;\">20\u00b0C &#8211; 15.4 bar<\/span><br \/>\n<span style=\"font-size: 80%;\">60\u00b0C &#8211; 7.7 bar<\/span><br \/>\n<span style=\"font-size: 80%;\">70\u00b0C &#8211; 5.1 bar<\/span><\/p>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-696746084\" class=\"col medium-2 small-6 large-2\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<p style=\"text-align: center;\"><strong>SDR 7.4<br \/>\n<\/strong><span style=\"font-size: 80%;\">20\u00b0C to 24.5 bar<\/span><br \/>\n<span style=\"font-size: 80%;\">60\u00b0C &#8211; 12.5 bar<\/span><br \/>\n<span style=\"font-size: 80%;\">70\u00b0C &#8211; 8.1 bar<\/span><\/p>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row row-collapse row-full-width\"  id=\"row-282071864\">\n\n\t<div id=\"col-688174134\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-3402536393\" class=\"text\">\n\t\t\n<p><strong><span style=\"color: #333333;\">WORKING TEMPERATURES:<\/span><\/strong><\/p>\n<p><span style=\"font-size: 85%;\">MIN= -20\u00b0C MAX= +95\u00b0C<\/span><br \/>\n\t\t\n<style>\n#text-3402536393 {\n  line-height: 1.25;\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-4122323285\" class=\"text\">\n\t\t\n<p><strong><span style=\"color: #333333;\">THERMAL CONDUCTIVITY:<\/span><\/strong><\/p>\n<p><span style=\"font-size: 85%;\">0,15 W\/mK<\/span><br \/>\n\t\t\n<style>\n#text-4122323285 {\n  line-height: 1.25;\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-3744629712\" class=\"text\">\n\t\t\n<p><strong><span style=\"color: #333333;\">COEFFICIENT OF LINEAR EXPANSION:<\/span><\/strong><\/p>\n<p><span style=\"font-size: 85%;\">0.030 mm\/mK<\/span><br \/>\n\t\t\n<style>\n#text-3744629712 {\n  line-height: 1.25;\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-2219489401\" class=\"text\">\n\t\t\n<p><strong><span style=\"color: #333333;\">REGULATION FOR DRINKING WATER:<\/span><\/strong><\/p>\n<p><span style=\"font-size: 85%;\">DM 174-06\/04\/2004 (Italy), DM 23\/04\/2009 e Reg. UE n\u00b0 10\/2011, KTW RECCOMENDATIONS, DVGW-W 270, BS 6920, FDA CRITERIA IN 21 CFR 177.1520, CSA B214, NSF61, NSF51<\/span><br \/>\n\t\t\n<style>\n#text-2219489401 {\n  line-height: 1.25;\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-2270033907\" class=\"text\">\n\t\t\n<p><strong><span style=\"color: #333333;\">REFERENCE STANDARDS:<\/span><\/strong><\/p>\n<ul>\n<li><span style=\"font-size: 85%;\"><strong>Sistema [System]:<\/strong> UNI EN ISO 21003, DIN 16837, UNI EN ISO 15874, ISO 15495, DIN 8077, DIN 8078, ASTM F2389, BS 4991, CSA B137.11<\/span><\/li>\n<li><span style=\"font-size: 85%;\"><strong>Prove [Tests]:<\/strong> UNI EN ISO 15874, DIN 16962, ISO 1133, ISO 3126, ISO 1167, ISO 2501, ISO 9854, NSF14<\/span><\/li>\n<\/ul>\n\t\t\n<style>\n#text-2270033907 {\n  line-height: 1.25;\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-3870421338\" class=\"text hidden\">\n\t\t\n<p><strong><span style=\"color: #333333;\">PRODUCT CERTIFICATES:<\/span><\/strong><\/p>\n<ul>\n<li><span style=\"font-size: 85%;\"><strong>WRAS :<\/strong> United Kingdom<\/span><\/li>\n<\/ul>\n\t\t\n<style>\n#text-3870421338 {\n  line-height: 1.25;\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-32\" src=\"https:\/\/plasticalfa.it\/wp-content\/uploads\/2021\/06\/banner_eco.png\" alt=\"\" width=\"200\" height=\"122\"><\/p>\n","protected":false},"featured_media":4076,"template":"","meta":{"inline_featured_image":false},"product_brand":[],"product_cat":[168,170,178,175],"product_tag":[],"class_list":["post-6700","product","type-product","status-publish","has-post-thumbnail","product_cat-thermohydraulics","product_cat-alfaidro-system","product_cat-pipes","product_cat-uv-resistant","first","instock","shipping-taxable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Multilayer pipe UV RESISTANT SDR 7.4 - Plastica Alfa<\/title>\n<meta name=\"description\" content=\"Alfaidro&#039;s multilayer pipe (UV RESISTANT SDR 7.4) consists of a black UV-stabilised PP-R outer layer and guarantees more than 15 years of resistance to ageing caused by UV radiation. The glass-fibre-reinforced interlayer reduces linear thermal expansion by approximately 75 per cent compared to single-layer pipes, which translates into fewer brackets (-30 per cent) and therefore less installation time and costs. The inner and outer layers are made from PP-R 100, which boasts high heat and pressure resistance, along with excellent chemical resistance. Thanks to its greater dimensional stability, ease of assembly (no stripping required before socket welding) and UV-resistant outer layer, Alfaidro&#039;s UV RESISTANT SDR 7.4 multilayer pipe is ideal for installation outside buildings and is suitable for irrigation, heating, air conditioning, compressed air, glycol transport, on transport vehicles, and in civil and industrial installations.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/plasticalfa.it\/en\/product\/thermohydraulics\/alfaidro-system\/uv-resistant\/multilayer-pipe-uv-resistant-sdr-7-4\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Multilayer pipe UV RESISTANT SDR 7.4 - Plastica Alfa\" \/>\n<meta property=\"og:description\" content=\"Alfaidro&#039;s multilayer pipe (UV RESISTANT SDR 7.4) consists of a black UV-stabilised PP-R outer layer and guarantees more than 15 years of resistance to ageing caused by UV radiation. The glass-fibre-reinforced interlayer reduces linear thermal expansion by approximately 75 per cent compared to single-layer pipes, which translates into fewer brackets (-30 per cent) and therefore less installation time and costs. The inner and outer layers are made from PP-R 100, which boasts high heat and pressure resistance, along with excellent chemical resistance. Thanks to its greater dimensional stability, ease of assembly (no stripping required before socket welding) and UV-resistant outer layer, Alfaidro&#039;s UV RESISTANT SDR 7.4 multilayer pipe is ideal for installation outside buildings and is suitable for irrigation, heating, air conditioning, compressed air, glycol transport, on transport vehicles, and in civil and industrial installations.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/plasticalfa.it\/en\/product\/thermohydraulics\/alfaidro-system\/uv-resistant\/multilayer-pipe-uv-resistant-sdr-7-4\/\" \/>\n<meta property=\"og:site_name\" content=\"Plastica Alfa\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/plasticalfa\/\" \/>\n<meta property=\"article:modified_time\" content=\"2022-11-04T11:14:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/plasticalfa.it\/wp-content\/uploads\/2021\/12\/tubo_multistrato_uv_sdr_7.4_tubi_alfaidro_faser_plastica-alfa.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"500\" \/>\n\t<meta property=\"og:image:height\" content=\"500\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@PlasticaAlfa\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/plasticalfa.it\\\/en\\\/product\\\/thermohydraulics\\\/alfaidro-system\\\/uv-resistant\\\/multilayer-pipe-uv-resistant-sdr-7-4\\\/\",\"url\":\"https:\\\/\\\/plasticalfa.it\\\/en\\\/product\\\/thermohydraulics\\\/alfaidro-system\\\/uv-resistant\\\/multilayer-pipe-uv-resistant-sdr-7-4\\\/\",\"name\":\"Multilayer pipe UV RESISTANT SDR 7.4 - Plastica Alfa\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/plasticalfa.it\\\/en\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/plasticalfa.it\\\/en\\\/product\\\/thermohydraulics\\\/alfaidro-system\\\/uv-resistant\\\/multilayer-pipe-uv-resistant-sdr-7-4\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/plasticalfa.it\\\/en\\\/product\\\/thermohydraulics\\\/alfaidro-system\\\/uv-resistant\\\/multilayer-pipe-uv-resistant-sdr-7-4\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/plasticalfa.it\\\/wp-content\\\/uploads\\\/2021\\\/12\\\/tubo_multistrato_uv_sdr_7.4_tubi_alfaidro_faser_plastica-alfa.jpg\",\"datePublished\":\"2021-12-22T09:50:06+00:00\",\"dateModified\":\"2022-11-04T11:14:50+00:00\",\"description\":\"Alfaidro's multilayer pipe (UV RESISTANT SDR 7.4) consists of a black UV-stabilised PP-R outer layer and guarantees more than 15 years of resistance to ageing caused by UV radiation. The glass-fibre-reinforced interlayer reduces linear thermal expansion by approximately 75 per cent compared to single-layer pipes, which translates into fewer brackets (-30 per cent) and therefore less installation time and costs. The inner and outer layers are made from PP-R 100, which boasts high heat and pressure resistance, along with excellent chemical resistance. 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The glass-fibre-reinforced interlayer reduces linear thermal expansion by approximately 75 per cent compared to single-layer pipes, which translates into fewer brackets (-30 per cent) and therefore less installation time and costs. The inner and outer layers are made from PP-R 100, which boasts high heat and pressure resistance, along with excellent chemical resistance. 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