{"id":484,"date":"2026-09-15T09:48:45","date_gmt":"2026-09-15T09:48:45","guid":{"rendered":"https:\/\/wdlvalve.com\/?post_type=product&#038;p=484"},"modified":"2026-09-18T02:48:10","modified_gmt":"2026-09-18T02:48:10","slug":"van-buom-dang-wafer-co-dem-mem-d71x","status":"publish","type":"product","link":"https:\/\/wdlvalve.com\/vi\/product\/van-buom-dang-wafer-co-dem-mem-d71x\/","title":{"rendered":"Van b\u01b0\u1edbm d\u1ea1ng wafer c\u00f3 \u0111\u1ec7m m\u1ec1m D71X"},"content":{"rendered":"<div style=\"font-family: Arial,Helvetica,sans-serif; color: #333; line-height: 1.75; max-width: 1200px; margin: 0 auto;\">\n<h2 style=\"color: #123a5a; font-size: 28px; margin: 0 0 16px;\">Van b\u01b0\u1edbm d\u1ea1ng wafer c\u00f3 \u0111\u1ec7m m\u1ec1m D71X<\/h2>\n<p>The D71X soft-seated wafer butterfly valve is a compact and lightweight valve<br \/>\ndesigned for reliable flow regulation and shut-off in industrial water supply<br \/>\nand drainage systems. With a 90-degree quarter-turn operation, the valve can be<br \/>\nopened and closed quickly with low operating torque.<\/p>\n<p>WDL Valve supplies D71X soft-seated wafer butterfly valves for water plants,<br \/>\npower plants, steel mills, paper mills, chemical processing, food processing<br \/>\nand other industrial applications. The valve provides reliable sealing, long<br \/>\nservice life and convenient installation in limited spaces.<\/p>\n<h3 style=\"color: #123a5a; font-size: 24px; margin: 28px 0 14px;\">C\u00e1c t\u00ednh n\u0103ng ch\u00ednh<\/h3>\n<ul style=\"padding-left: 22px;\">\n<li>Compact wafer-type construction.<\/li>\n<li>Quarter-turn operation with quick opening and closing.<\/li>\n<li>Reliable sealing performance and long service life.<\/li>\n<li>Double-eccentric design with a progressively tighter sealing effect.<\/li>\n<li>Stainless steel and oil-resistant nitrile rubber sealing pair.<\/li>\n<li>Rubber seat can be installed on the valve body or butterfly disc.<\/li>\n<li>Frame-type butterfly disc with high strength and large flow area.<\/li>\n<li>Low flow resistance and low pressure loss.<\/li>\n<li>Full-body coating helps protect the valve against corrosion.<\/li>\n<li>Sealing materials can be changed for different media.<\/li>\n<li>Bidirectional sealing capability.<\/li>\n<li>Can be installed in any direction without being restricted by flow direction.<\/li>\n<li>Available with gear, electric, pneumatic or hydraulic operation.<\/li>\n<\/ul>\n<h3 style=\"color: #123a5a; font-size: 24px; margin: 28px 0 14px;\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/h3>\n<div style=\"width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin-bottom: 28px;\">\n<table style=\"width: 100%; min-width: 750px; border: 1px solid #111!important; border-collapse: collapse; background: #fff;\" border=\"1\" rules=\"all\" cellspacing=\"0\" cellpadding=\"0\">\n<thead>\n<tr>\n<th style=\"padding: 12px; border: 1px solid #111!important; background: #eaf3f8; text-align: left;\">M\u1eb7t h\u00e0ng<\/th>\n<th style=\"padding: 12px; border: 1px solid #111!important; background: #eaf3f8; text-align: left;\">Specification<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">K\u00edch th\u01b0\u1edbc danh ngh\u0129a<\/td>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">DN50 to DN2000; selected dimensions available up to DN1600 according to pressure class<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">\u00c1p su\u1ea5t \u0111\u1ecbnh m\u1ee9c<\/td>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">PN0.6, PN1.0 and PN1.6 MPa<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">Sealing Test Pressure<\/td>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">0.66, 1.10 and 1.76 MPa<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">Shell Test Pressure<\/td>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">0.90, 1.50 and 2.40 MPa<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">Seat Material<\/td>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">Oil-resistant nitrile rubber or fluororubber<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">Ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9<\/td>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">Nitrile rubber: -40\u00b0C to +90\u00b0C; fluororubber: -20\u00b0C to +200\u00b0C<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">Ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n th\u00f4ng \u00e1p d\u1ee5ng<\/td>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">Water, air, natural gas, oil products and mildly corrosive fluids<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">Leakage Standard<\/td>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">GB\/T 13927-1992<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">Ho\u1ea1t \u0111\u1ed9ng<\/td>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">Gear, electric, pneumatic or hydraulic actuator<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 style=\"color: #123a5a; font-size: 24px; margin: 28px 0 14px;\">Main Materials<\/h3>\n<div style=\"width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin-bottom: 28px;\">\n<table style=\"width: 100%; min-width: 700px; border: 1px solid #111!important; border-collapse: collapse; background: #fff; text-align: center;\" border=\"1\" rules=\"all\" cellspacing=\"0\" cellpadding=\"0\">\n<thead>\n<tr>\n<th style=\"padding: 10px; border: 1px solid #111!important; background: #eaf3f8;\">Part<\/th>\n<th style=\"padding: 10px; border: 1px solid #111!important; background: #eaf3f8;\">Ch\u1ea5t li\u1ec7u<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #111!important;\">Th\u00e2n van<\/td>\n<td style=\"padding: 10px; border: 1px solid #111!important;\">WCB, QT450-10, HT200 or HT250<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #111!important;\">Butterfly Disc<\/td>\n<td style=\"padding: 10px; border: 1px solid #111!important;\">WCB, QT450-10, HT200 or HT250<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #111!important;\">Valve Shaft<\/td>\n<td style=\"padding: 10px; border: 1px solid #111!important;\">2Cr13 stainless steel<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #111!important;\">Sealing Ring<\/td>\n<td style=\"padding: 10px; border: 1px solid #111!important;\">Oil-resistant nitrile rubber<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #111!important;\">\u0110\u00f3ng g\u00f3i<\/td>\n<td style=\"padding: 10px; border: 1px solid #111!important;\">Graphite d\u1ebbo<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 style=\"color: #123a5a; font-size: 24px; margin: 28px 0 14px;\">C\u00e1c ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng<\/h3>\n<div style=\"width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin-bottom: 28px;\">\n<table style=\"width: 100%; min-width: 700px; border: 1px solid #111!important; border-collapse: collapse; background: #fff;\" border=\"1\" rules=\"all\" cellspacing=\"0\" cellpadding=\"0\">\n<thead>\n<tr>\n<th style=\"padding: 12px; border: 1px solid #111!important; background: #eaf3f8; text-align: left;\">M\u1eb7t h\u00e0ng<\/th>\n<th style=\"padding: 12px; border: 1px solid #111!important; background: #eaf3f8; text-align: left;\">Ti\u00eau chu\u1ea9n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">Thi\u1ebft k\u1ebf v\u00e0 S\u1ea3n xu\u1ea5t<\/td>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">GB\/T 12238-1989<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">K\u00edch th\u01b0\u1edbc m\u1eb7t b\u00edch<\/td>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">GB 9113-2000 and GB\/T 17241.6-1998<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">C\u00e1c chi\u1ec1u k\u00edch trong giao ti\u1ebfp tr\u1ef1c ti\u1ebfp<\/td>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">GB\/T 12221-1989<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">Ki\u1ec3m tra v\u00e0 Th\u1eed nghi\u1ec7m<\/td>\n<td style=\"padding: 12px; border: 1px solid #111!important;\">GB\/T 13927-1992<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 style=\"color: #123a5a; font-size: 24px; margin: 28px 0 14px;\">Main Dimensions \u2014 D71X PN6 \/ PN10 \/ PN16<\/h3>\n<div style=\"width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin-bottom: 28px;\">\n<table style=\"width: 100%; min-width: 1100px; border: 1px solid #111!important; border-collapse: collapse; background: #fff; text-align: center;\" border=\"1\" rules=\"all\" cellspacing=\"0\" cellpadding=\"0\">\n<thead>\n<tr>\n<th style=\"padding: 10px; border: 1px solid #111!important; background: #eaf3f8;\" rowspan=\"2\">DN<\/th>\n<th style=\"padding: 10px; border: 1px solid #111!important; background: #eaf3f8;\" rowspan=\"2\">L<\/th>\n<th style=\"padding: 10px; border: 1px solid #111!important; background: #eaf3f8;\" rowspan=\"2\">H<\/th>\n<th style=\"padding: 10px; border: 1px solid #111!important; background: #eaf3f8;\" rowspan=\"2\">H0<\/th>\n<th style=\"padding: 10px; border: 1px solid #111!important; background: #eaf3f8;\" rowspan=\"2\">A<\/th>\n<th style=\"padding: 10px; border: 1px solid #111!important; background: #eaf3f8;\" rowspan=\"2\">B<\/th>\n<th style=\"padding: 10px; border: 1px solid #111!important; background: #eaf3f8;\" colspan=\"2\">PN6<\/th>\n<th style=\"padding: 10px; border: 1px solid #111!important; background: #eaf3f8;\" colspan=\"2\">PN10<\/th>\n<th style=\"padding: 10px; border: 1px solid #111!important; background: #eaf3f8;\" colspan=\"2\">PN16<\/th>\n<\/tr>\n<tr>\n<th style=\"padding: 10px; border: 1px solid #111!important; background: #f4f8fa;\">D0<\/th>\n<th style=\"padding: 10px; border: 1px solid #111!important; background: #f4f8fa;\">n-d<\/th>\n<th style=\"padding: 10px; border: 1px solid #111!important; background: #f4f8fa;\">D0<\/th>\n<th style=\"padding: 10px; border: 1px solid #111!important; background: #f4f8fa;\">n-d<\/th>\n<th style=\"padding: 10px; border: 1px solid #111!important; background: #f4f8fa;\">D0<\/th>\n<th style=\"padding: 10px; border: 1px solid #111!important; background: #f4f8fa;\">n-d<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>50<\/td>\n<td>43<\/td>\n<td>63<\/td>\n<td>235<\/td>\n<td>270<\/td>\n<td>110<\/td>\n<td>110<\/td>\n<td>4-14<\/td>\n<td>125<\/td>\n<td>4-18<\/td>\n<td>125<\/td>\n<td>4-18<\/td>\n<\/tr>\n<tr>\n<td>65<\/td>\n<td>46<\/td>\n<td>70<\/td>\n<td>250<\/td>\n<td>270<\/td>\n<td>110<\/td>\n<td>130<\/td>\n<td>4-14<\/td>\n<td>145<\/td>\n<td>4-18<\/td>\n<td>145<\/td>\n<td>4-18<\/td>\n<\/tr>\n<tr>\n<td>80<\/td>\n<td>46<\/td>\n<td>83<\/td>\n<td>275<\/td>\n<td>270<\/td>\n<td>110<\/td>\n<td>150<\/td>\n<td>4-18<\/td>\n<td>160<\/td>\n<td>8-18<\/td>\n<td>160<\/td>\n<td>8-18<\/td>\n<\/tr>\n<tr>\n<td>100<\/td>\n<td>52<\/td>\n<td>105<\/td>\n<td>316<\/td>\n<td>270<\/td>\n<td>110<\/td>\n<td>170<\/td>\n<td>4-18<\/td>\n<td>180<\/td>\n<td>8-18<\/td>\n<td>180<\/td>\n<td>8-18<\/td>\n<\/tr>\n<tr>\n<td>125<\/td>\n<td>56<\/td>\n<td>115<\/td>\n<td>340<\/td>\n<td>310<\/td>\n<td>110<\/td>\n<td>200<\/td>\n<td>8-18<\/td>\n<td>210<\/td>\n<td>8-18<\/td>\n<td>210<\/td>\n<td>8-18<\/td>\n<\/tr>\n<tr>\n<td>150<\/td>\n<td>56<\/td>\n<td>137<\/td>\n<td>376<\/td>\n<td>310<\/td>\n<td>110<\/td>\n<td>225<\/td>\n<td>8-18<\/td>\n<td>240<\/td>\n<td>8-22<\/td>\n<td>240<\/td>\n<td>8-22<\/td>\n<\/tr>\n<tr>\n<td>200<\/td>\n<td>60<\/td>\n<td>164<\/td>\n<td>430<\/td>\n<td>353<\/td>\n<td>150<\/td>\n<td>280<\/td>\n<td>8-18<\/td>\n<td>295<\/td>\n<td>8-22<\/td>\n<td>295<\/td>\n<td>8-22<\/td>\n<\/tr>\n<tr>\n<td>250<\/td>\n<td>68<\/td>\n<td>206<\/td>\n<td>499<\/td>\n<td>353<\/td>\n<td>150<\/td>\n<td>335<\/td>\n<td>12-18<\/td>\n<td>350<\/td>\n<td>12-22<\/td>\n<td>355<\/td>\n<td>12-26<\/td>\n<\/tr>\n<tr>\n<td>300<\/td>\n<td>78<\/td>\n<td>230<\/td>\n<td>570<\/td>\n<td>380<\/td>\n<td>150<\/td>\n<td>395<\/td>\n<td>12-22<\/td>\n<td>400<\/td>\n<td>12-22<\/td>\n<td>410<\/td>\n<td>12-26<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 style=\"color: #123a5a; font-size: 24px; margin: 28px 0 14px;\">C\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/h3>\n<ul style=\"padding-left: 22px;\">\n<li>Water treatment plants<\/li>\n<li>Power plants<\/li>\n<li>Steel mills<\/li>\n<li>Paper mills<\/li>\n<li>Chemical processing plants<\/li>\n<li>Food and beverage systems<\/li>\n<li>Industrial water supply and drainage systems<\/li>\n<li>Air, natural gas and oil pipelines<\/li>\n<\/ul>\n<p style=\"padding: 16px 18px; border: 1px solid #1378ae; background: #eef6fa;\">Dimensions, materials, seat configuration and pressure-temperature limits are subject to the final WDL Valve technical drawing and approved project datasheet.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>D71X soft-seated wafer butterfly valve features a compact double-eccentric design, low operating torque and reliable bidirectional sealing. With replaceable nitrile rubber or fluororubber seats, it is suitable for water, air, natural gas, oil and mildly corrosive fluids in industrial pipelines.<\/p>","protected":false},"featured_media":485,"comment_status":"open","ping_status":"closed","template":"","meta":{"_kad_post_transparent":"default","_kad_post_title":"","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":""},"product_brand":[72],"product_cat":[34,32,31,43],"product_tag":[],"class_list":["post-484","product","type-product","status-publish","has-post-thumbnail","product_brand-wdl-valve","product_cat-butterfly-valves","product_cat-valve-materials","product_cat-valve-types","product_cat-cast-ductile-iron-valves","first","instock","shipping-taxable","product-type-simple","entry","content-bg","loop-entry"],"_links":{"self":[{"href":"https:\/\/wdlvalve.com\/vi\/wp-json\/wp\/v2\/product\/484","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wdlvalve.com\/vi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/wdlvalve.com\/vi\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/wdlvalve.com\/vi\/wp-json\/wp\/v2\/comments?post=484"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wdlvalve.com\/vi\/wp-json\/wp\/v2\/media\/485"}],"wp:attachment":[{"href":"https:\/\/wdlvalve.com\/vi\/wp-json\/wp\/v2\/media?parent=484"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/wdlvalve.com\/vi\/wp-json\/wp\/v2\/product_brand?post=484"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/wdlvalve.com\/vi\/wp-json\/wp\/v2\/product_cat?post=484"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/wdlvalve.com\/vi\/wp-json\/wp\/v2\/product_tag?post=484"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}