{"id":6615,"date":"2026-03-30T05:13:03","date_gmt":"2026-03-30T05:13:03","guid":{"rendered":"https:\/\/kateteco.com\/?post_type=product&#038;p=6615"},"modified":"2026-03-30T05:13:04","modified_gmt":"2026-03-30T05:13:04","slug":"upvc-worm-gear-butterfly-valve-d371x-10s-dn50-dn400","status":"publish","type":"product","link":"https:\/\/kateteco.com\/en\/product\/upvc-worm-gear-butterfly-valve-d371x-10s-dn50-dn400\/","title":{"rendered":"UPVC Worm Gear Butterfly Valve D371X-10S DN50-DN400"},"content":{"rendered":"<p><span style=\"color: #000000;\">This model is available in sizes from DN50 to DN400. The worm gear box enables smooth 90\u00b0 opening and closing operation, providing labor-saving performance and self-locking capability. The valve complies with GB\/DIN standards, offers excellent corrosion resistance, and is widely used in water treatment, chemical, environmental protection, and other normal temperature low-pressure pipeline systems.<\/span><\/p>\n<h3><span style=\"color: #000000;\"><strong>Product Overview<\/strong><\/span><\/h3>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><span style=\"color: #000000;\"><strong>Standard<\/strong>: GB (Chinese national standard) \/ DIN (German standard)<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span style=\"color: #000000;\"><strong>Body &amp; Disc Material<\/strong>: UPVC (default)<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span style=\"color: #000000;\"><strong>Inspection<\/strong>: 100% factory tested<\/span><\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h3><span style=\"color: #000000;\"><strong>Model &amp; Size List<\/strong><\/span><\/h3>\n<h4><span style=\"color: #000000;\">1. UPVC Worm Gear Butterfly Valve<\/span><\/h4>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\">\n<div class=\"ds-scroll-area__gutters\">\n<div class=\"ds-scroll-area__vertical-gutter\"><\/div>\n<\/div>\n<table>\n<thead>\n<tr>\n<th><span style=\"color: #000000;\">Model<\/span><\/th>\n<th><span style=\"color: #000000;\">Size (DN)<\/span><\/th>\n<th><span style=\"color: #000000;\">Inch<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span style=\"color: #000000;\">D371X-10S<\/span><\/td>\n<td><span style=\"color: #000000;\">DN50<\/span><\/td>\n<td><span style=\"color: #000000;\">2&#8243;<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"color: #000000;\">D371X-10S<\/span><\/td>\n<td><span style=\"color: #000000;\">DN65<\/span><\/td>\n<td><span style=\"color: #000000;\">2.5&#8243;<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"color: #000000;\">D371X-10S<\/span><\/td>\n<td><span style=\"color: #000000;\">DN80<\/span><\/td>\n<td><span style=\"color: #000000;\">3&#8243;<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"color: #000000;\">D371X-10S<\/span><\/td>\n<td><span style=\"color: #000000;\">DN100<\/span><\/td>\n<td><span style=\"color: #000000;\">4&#8243;<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"color: #000000;\">D371X-10S<\/span><\/td>\n<td><span style=\"color: #000000;\">DN125<\/span><\/td>\n<td><span style=\"color: #000000;\">5&#8243;<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"color: #000000;\">D371X-10S<\/span><\/td>\n<td><span style=\"color: #000000;\">DN150<\/span><\/td>\n<td><span style=\"color: #000000;\">6&#8243;<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"color: #000000;\">D371X-10S<\/span><\/td>\n<td><span style=\"color: #000000;\">DN200<\/span><\/td>\n<td><span style=\"color: #000000;\">8&#8243;<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"color: #000000;\">D371X-6S<\/span><\/td>\n<td><span style=\"color: #000000;\">DN250<\/span><\/td>\n<td><span style=\"color: #000000;\">10&#8243;<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"color: #000000;\">D371X-6S<\/span><\/td>\n<td><span style=\"color: #000000;\">DN300<\/span><\/td>\n<td><span style=\"color: #000000;\">12&#8243;<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"color: #000000;\">D371X-4S<\/span><\/td>\n<td><span style=\"color: #000000;\">DN350<\/span><\/td>\n<td><span style=\"color: #000000;\">14&#8243;<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"color: #000000;\">D371X-4S<\/span><\/td>\n<td><span style=\"color: #000000;\">DN400<\/span><\/td>\n<td><span style=\"color: #000000;\">16&#8243;<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<hr \/>\n<h3><span style=\"color: #000000;\"><strong>Optional Materials (Price on Request)<\/strong><\/span><\/h3>\n<h4><span style=\"color: #000000;\">1. Disc Material<\/span><\/h4>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><span style=\"color: #000000;\">UPVC (default)<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span style=\"color: #000000;\">PPH<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span style=\"color: #000000;\">FRPP<\/span><\/p>\n<\/li>\n<\/ul>\n<h4><span style=\"color: #000000;\">2. Seat \/ Liner Material<\/span><\/h4>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><span style=\"color: #000000;\">NR (Natural Rubber) \u2013 default<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span style=\"color: #000000;\">EPDM<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span style=\"color: #000000;\">FPM (Viton)<\/span><\/p>\n<\/li>\n<\/ul>\n<h4><span style=\"color: #000000;\">3. Stem Material<\/span><\/h4>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><span style=\"color: #000000;\">45# Carbon Steel \u2013 default<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span style=\"color: #000000;\">304 Stainless Steel<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span style=\"color: #000000;\">316 Stainless Steel<\/span><\/p>\n<\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">We can provide precise product selection based on your on-site working conditions and offer a solution that best suits your needs. If you require our assistance, please feel free to contact us via WhatsApp or email. We offer 7*24 hour online service.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The UPVC worm gear butterfly valve D371X-10S is a wafer-type butterfly valve equipped with a worm gear drive. The body and disc are made of UPVC material, the seat is typically NR (natural rubber), with optional EPDM or FPM, and the stem is standard 45# carbon steel (optional 304\/316 stainless steel).<\/p>\n","protected":false},"featured_media":6624,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[54,55],"product_tag":[],"class_list":{"0":"post-6615","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-manual-valve","7":"product_cat-butterfly-valve","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/product\/6615","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/comments?post=6615"}],"version-history":[{"count":1,"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/product\/6615\/revisions"}],"predecessor-version":[{"id":6632,"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/product\/6615\/revisions\/6632"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/media\/6624"}],"wp:attachment":[{"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/media?parent=6615"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/product_brand?post=6615"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/product_cat?post=6615"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/product_tag?post=6615"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}