{"id":322,"date":"2026-02-03T08:03:51","date_gmt":"2026-02-03T08:03:51","guid":{"rendered":"https:\/\/www.yayevalve.com\/?post_type=product&#038;p=322"},"modified":"2026-04-16T09:49:15","modified_gmt":"2026-04-16T01:49:15","slug":"cast-manual-wafer-butterfly-valve","status":"publish","type":"product","link":"https:\/\/www.yayevalve.com\/pt\/product\/cast-manual-wafer-butterfly-valve\/","title":{"rendered":"V\u00e1lvula Borboleta Tipo Wafer de Ferro Fundido"},"content":{"rendered":"<h2>Caracter\u00edsticas Estruturais de<\/h2>\n<ul>\n<li data-start=\"158\" data-end=\"313\">\n<p data-start=\"664\" data-end=\"910\">The valve is sandwiched between flanges, minimizing installation footprint in confined layouts.<\/p>\n<\/li>\n<li data-start=\"315\" data-end=\"481\">\n<p data-start=\"317\" data-end=\"481\">A resilient liner surrounds the disc to create uniform circumferential sealing.<\/p>\n<\/li>\n<li data-start=\"483\" data-end=\"649\">\n<p data-start=\"1308\" data-end=\"1555\">Quarter-turn operation allows both throttling adjustment and shutoff service.<\/p>\n<\/li>\n<li data-start=\"651\" data-end=\"843\">\n<p data-start=\"978\" data-end=\"1166\">Provides improved strength and structural durability for standard pressure applications.<\/p>\n<\/li>\n<li data-start=\"845\" data-end=\"1043\">\n<p data-start=\"1361\" data-end=\"1847\">Lever operation enables quick response with minimal maintenance demand.<\/p>\n<\/li>\n<li data-start=\"845\" data-end=\"1043\">Suitable for installation regardless of flow direction.<\/li>\n<li data-start=\"845\" data-end=\"1043\">This butterfly valve is commonly used for clean water, cooling circulation systems, HVAC networks, mildly treated wastewater, and general low-corrosive fluids. It is widely applied in municipal works, building services, heating and ventilation systems, auxiliary food processing lines, and general industrial installations for flow regulation or isolation.<\/li>\n<li data-start=\"845\" data-end=\"1043\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-497 size-full\" src=\"https:\/\/www.yayevalve.com\/wp-content\/uploads\/2026\/02\/333-1.png\" alt=\"\" width=\"659\" height=\"539\" srcset=\"https:\/\/www.yayevalve.com\/wp-content\/uploads\/2026\/02\/333-1.png 659w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2026\/02\/333-1-500x409.png 500w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2026\/02\/333-1-300x245.png 300w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2026\/02\/333-1-15x12.png 15w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2026\/02\/333-1-92x75.png 92w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2026\/02\/333-1-480x393.png 480w\" sizes=\"auto, (max-width:767px) 480px, 659px\" \/><\/li>\n<\/ul>\n<h2>Material dos Componentes Principais<\/h2>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"8\">\n<tbody>\n<tr>\n<th>N\u00e3o.<\/th>\n<th>Pe\u00e7a<\/th>\n<th>Materiais<\/th>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>Bucha<\/td>\n<td>Lat\u00e3o<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>Disco<\/td>\n<td>QT450-10<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>Haste<\/td>\n<td>2Cr13<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>Sede<\/td>\n<td>EPDM<\/td>\n<\/tr>\n<tr>\n<td>1<\/td>\n<td>Corpo<\/td>\n<td>QT450-10<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Dimens\u00f5es da Conex\u00e3o Principal Classe 150LB<\/h2>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"8\">\n<tbody>\n<tr>\n<th>DN<\/th>\n<th>L<\/th>\n<th>K<\/th>\n<th>n-\u03c6<\/th>\n<\/tr>\n<tr>\n<td>50<\/td>\n<td>43<\/td>\n<td>125<\/td>\n<td>4-\u03c618<\/td>\n<\/tr>\n<tr>\n<td>65<\/td>\n<td>46<\/td>\n<td>145<\/td>\n<td>4-\u03c618<\/td>\n<\/tr>\n<tr>\n<td>80<\/td>\n<td>46<\/td>\n<td>160<\/td>\n<td>4-\u03c618<\/td>\n<\/tr>\n<tr>\n<td>100<\/td>\n<td>52<\/td>\n<td>180<\/td>\n<td>4-\u03c618<\/td>\n<\/tr>\n<tr>\n<td>125<\/td>\n<td>56<\/td>\n<td>210<\/td>\n<td>4-\u03c618<\/td>\n<\/tr>\n<tr>\n<td>150<\/td>\n<td>56<\/td>\n<td>240<\/td>\n<td>4-\u03c622<\/td>\n<\/tr>\n<tr>\n<td>200<\/td>\n<td>60<\/td>\n<td>295<\/td>\n<td>4-\u03c622<\/td>\n<\/tr>\n<tr>\n<td>250<\/td>\n<td>68<\/td>\n<td>355<\/td>\n<td>4-\u03c626<\/td>\n<\/tr>\n<tr>\n<td>300<\/td>\n<td>78<\/td>\n<td>410<\/td>\n<td>4-\u03c626<\/td>\n<\/tr>\n<tr>\n<td>350<\/td>\n<td>78<\/td>\n<td>470<\/td>\n<td>4-\u03c626<\/td>\n<\/tr>\n<tr>\n<td>400<\/td>\n<td>102<\/td>\n<td>525<\/td>\n<td>4-\u03c630<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Porqu\u00ea escolher YAYE<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-67 size-full\" src=\"https:\/\/yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE.webp\" alt=\"\" width=\"2076\" height=\"1253\" srcset=\"https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE.webp 2076w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE-800x483.webp 800w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE-500x302.webp 500w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE-1200x724.webp 1200w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE-300x181.webp 300w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE-768x464.webp 768w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE-1536x927.webp 1536w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE-2048x1236.webp 2048w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE-124x75.webp 124w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE-480x290.webp 480w\" sizes=\"auto, (max-width:767px) 480px, (max-width:2076px) 100vw, 2076px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p data-start=\"606\" data-end=\"1088\">The <strong data-start=\"610\" data-end=\"656\">D71X-16Q manual wafer-type butterfly valve<\/strong> is a lightweight and efficient flow control device designed for on\/off service and moderate flow regulation in industrial piping systems. The valve body is cast from <strong data-start=\"823\" data-end=\"847\">ductile iron (QT450)<\/strong>, featuring a dense microstructure with excellent tensile strength, ductility, and impact resistance. This material combination ensures structural reliability under frequent operation and long-term service within standard pressure ratings.<\/p>\n<p data-start=\"1090\" data-end=\"1563\">The valve adopts a concentric disc design, where the disc rotates around the stem axis to vary the flow area. A small operating angle enables quick response, and when fully open, the streamlined passage minimizes pressure loss, contributing to efficient system performance. The resilient sealing system works in close contact with the disc, providing dependable sealing in water service and other neutral media, while also reducing operating torque for smoother handling.<\/p>\n<p data-start=\"1565\" data-end=\"1989\">The wafer-type configuration allows the valve to be installed directly between two flanges without additional supports. Its compact structure, low weight, and minimal space requirement make it particularly suitable for installations with limited layout space or dense piping arrangements. Manual actuation offers direct transmission, simple construction, and convenient field maintenance, resulting in low operating costs.<\/p>\n<p data-start=\"1991\" data-end=\"2300\">This butterfly valve is extensively used in <strong data-start=\"2035\" data-end=\"2199\">water supply and drainage systems, HVAC circulation networks, fire protection pipelines, industrial cooling water systems, and general low-corrosion media lines<\/strong>, delivering reliable shutoff performance combined with cost efficiency and installation flexibility.<\/p>\n<table data-path-to-node=\"1\">\n<thead>\n<tr>\n<td><strong>Descri\u00e7\u00e3o<\/strong><\/td>\n<td><strong>Valor<\/strong><\/td>\n<td><strong>Unidade<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"1,1,0,0\"><b data-path-to-node=\"1,1,0,0\" data-index-in-node=\"0\">Press\u00e3o Nominal (PN)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"1,1,1,0\">16<\/span><\/td>\n<td><span data-path-to-node=\"1,1,2,0\">\u2013<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"1,2,0,0\"><b data-path-to-node=\"1,2,0,0\" data-index-in-node=\"0\">DN<\/b><\/span><\/td>\n<td><span data-path-to-node=\"1,2,1,0\">50\u2013400<\/span><\/td>\n<td><span data-path-to-node=\"1,2,2,0\">mm<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"1,3,0,0\"><b data-path-to-node=\"1,3,0,0\" data-index-in-node=\"0\">Press\u00e3o de Teste: Press\u00e3o de Teste do Corpo<\/b><\/span><\/td>\n<td><span data-path-to-node=\"1,3,1,0\">2.4<\/span><\/td>\n<td><span data-path-to-node=\"1,3,2,0\">MPa<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"1,4,0,0\"><b data-path-to-node=\"1,4,0,0\" data-index-in-node=\"0\">Press\u00e3o de Teste: Press\u00e3o de Teste de Veda\u00e7\u00e3o<\/b><\/span><\/td>\n<td><span data-path-to-node=\"1,4,1,0\">1.76<\/span><\/td>\n<td><span data-path-to-node=\"1,4,2,0\">MPa<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"1,5,0,0\"><b data-path-to-node=\"1,5,0,0\" data-index-in-node=\"0\">Press\u00e3o de Teste: Press\u00e3o de Teste de Ar<\/b><\/span><\/td>\n<td><span data-path-to-node=\"1,5,1,0\">0.6<\/span><\/td>\n<td><span data-path-to-node=\"1,5,2,0\">MPa<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"1,6,0,0\"><b data-path-to-node=\"1,6,0,0\" data-index-in-node=\"0\">Temp. Adequada.<\/b><\/span><\/td>\n<td><span data-path-to-node=\"1,6,1,0\">\u2264 120<\/span><\/td>\n<td><span data-path-to-node=\"1,6,2,0\">\u2103<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"1,7,0,0\"><b data-path-to-node=\"1,7,0,0\" data-index-in-node=\"0\">Meio Adequado<\/b><\/span><\/td>\n<td><span data-path-to-node=\"1,7,1,0\">\u00c1gua, Vapor, \u00d3leo (A.V.O)<\/span><\/td>\n<td><span data-path-to-node=\"1,7,2,0\">\u2013<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"featured_media":342,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[25,31],"product_tag":[],"class_list":["post-322","product","type-product","status-publish","has-post-thumbnail","product_cat-butterfly-valves","product_cat-casting-butterfly-valves","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.yayevalve.com\/pt\/wp-json\/wp\/v2\/product\/322","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yayevalve.com\/pt\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.yayevalve.com\/pt\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yayevalve.com\/pt\/wp-json\/wp\/v2\/comments?post=322"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yayevalve.com\/pt\/wp-json\/wp\/v2\/media\/342"}],"wp:attachment":[{"href":"https:\/\/www.yayevalve.com\/pt\/wp-json\/wp\/v2\/media?parent=322"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.yayevalve.com\/pt\/wp-json\/wp\/v2\/product_brand?post=322"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.yayevalve.com\/pt\/wp-json\/wp\/v2\/product_cat?post=322"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.yayevalve.com\/pt\/wp-json\/wp\/v2\/product_tag?post=322"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}