{"id":8590,"date":"2025-12-11T10:59:18","date_gmt":"2025-12-11T02:59:18","guid":{"rendered":"https:\/\/www.stvvalves.com\/?post_type=product&#038;p=8590"},"modified":"2025-12-11T11:05:32","modified_gmt":"2025-12-11T03:05:32","slug":"square-knife-gate-valve-150lb-dn500-epdm-seat","status":"publish","type":"product","link":"https:\/\/www.stvvalves.com\/ru\/products\/square-knife-gate-valve-150lb-dn500-epdm-seat\/","title":{"rendered":"Square Knife Gate Valve,150LB,DN500.EPDM Seat"},"content":{"rendered":"<p>Square Knife Gate Valve is a unidirectional, low-pressure gate valve designed for open discharge applications. Its square or rectangular outlet is intentionally larger than the round inlet, eliminating any narrowing or bottleneck at the exit point.<br \/>\nThis design reduces the risk of material build-up, making it ideal for handling:<\/p>\n<ul>\n<li>Thick slurries<\/li>\n<li>Fibrous pulp<\/li>\n<li>Granular or powdered solids<\/li>\n<li>High-viscosity fluids<\/li>\n<\/ul>\n<p>Whether installed under a silo, hopper, or in a process pipeline, this square gate valve ensures smooth shutoff, fast discharge, and low maintenance cycles.<\/p>\n<p>Get a quote now and let us help you find the right square knife gate valve for your application in the shortest possible time.<\/p>\n<p>&nbsp;<\/p>\n<h3>Square Knife Gate Valve Features &amp; Benefits<\/h3>\n<table>\n<tbody>\n<tr>\n<td><b>Feature<\/b><\/td>\n<td><b>What You Gain<\/b><\/td>\n<\/tr>\n<tr>\n<td><b>Round Inlet + Square Outlet<\/b><\/td>\n<td>Full-bore flow, zero clogging at discharge point<\/td>\n<\/tr>\n<tr>\n<td><b>Oversized Discharge Port<\/b><\/td>\n<td>Handles high-volume bulk media with ease<\/td>\n<\/tr>\n<tr>\n<td><b>Active Seat Sealing<\/b><\/td>\n<td>Reliable shut-off even in abrasive or sticky media<\/td>\n<\/tr>\n<tr>\n<td><b>Two-Piece Body Design<\/b><\/td>\n<td>Quick maintenance and internal inspection<\/td>\n<\/tr>\n<tr>\n<td><b>Available Actuation Types<\/b><\/td>\n<td>Pneumatic, electric, manual, chain wheel<\/td>\n<\/tr>\n<tr>\n<td><b>Wide Compatibility<\/b><\/td>\n<td>Works with ANSI, DIN, JIS, GB flanges<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h3>Main Technical Parameters &amp; Performance<\/h3>\n<table>\n<thead>\n<tr>\n<th colspan=\"2\">Unidirectional Knife Gate Valve with Round Inlet and Rectangular Outlet, Seat with Replaceable Insert, Two Half Body Design<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Design &amp; Manufacturing Standard<\/td>\n<td>MSS SP\u201381<\/td>\n<\/tr>\n<tr>\n<td>Size Range<\/td>\n<td>DN100 ~ DN600; NPS: 4\u2033-24\u2033<\/td>\n<\/tr>\n<tr>\n<td>Pressure Ratings<\/td>\n<td>PN10, PN16, ANSI 150Psi, 5K \/ 10K<\/td>\n<\/tr>\n<tr>\n<td>Working Pressure by Size<\/td>\n<td>DN100 ~ DN250: 10Bar, DN300 ~ DN450: 7Bar, DN500 ~ DN600: 4Bar<\/td>\n<\/tr>\n<tr>\n<td>Face-to-Face Dimension Standard<\/td>\n<td>MSS SP\u201381<\/td>\n<\/tr>\n<tr>\n<td>Flange Connection Standards<\/td>\n<td>GB\/T9113\u20132010, EN1092\u20132002, ASME B16.5\u20132013, ASME B16.47\u20132011, AS2129\u20132000, AS4087\u20132004, JIS B2220\u20132004<\/td>\n<\/tr>\n<tr>\n<td>\u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0438 \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f<\/td>\n<td>MSS SP\u201381 (no visible leakage, special leakage tests available upon request)<\/td>\n<\/tr>\n<tr>\n<td>Body Materials<\/td>\n<td>WCB, CF8, CF3, CF8M, CF3M, 4A, 5A, 904L<\/td>\n<\/tr>\n<tr>\n<td>Temperature-Pressure Rating Standards<\/td>\n<td>GB\/T12224\u20132007, ASME B16.34\u20132009, ISO7005\u20131<\/td>\n<\/tr>\n<tr>\n<td>Typical Applications<\/td>\n<td>Pulp &amp; Paper, Mining, Chemical Industries<\/td>\n<\/tr>\n<tr>\n<td>Actuation Options<\/td>\n<td>Manual, Pneumatic, Electric, Gear, Chain Drive<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h3>Square Knife Gate Valve Main Components and Materials<\/h3>\n<table style=\"height: 482px;\" width=\"750\">\n<thead>\n<tr>\n<th>\u0427\u0430\u0441\u0442\u044c<\/th>\n<th colspan=\"3\">\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u0422\u0435\u043b\u043e<\/strong><\/td>\n<td>\u0412\u041a\u0411<\/td>\n<td>CF8<\/td>\n<td>CF8M<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0414\u0438\u0441\u043a<\/strong><\/td>\n<td>304<\/td>\n<td>304<\/td>\n<td>316<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0421\u0438\u0434\u0435\u043d\u044c\u0435<\/strong><\/td>\n<td colspan=\"3\">Hard Seal or EPDM<\/td>\n<\/tr>\n<tr>\n<td><strong>O-ring<\/strong><\/td>\n<td colspan=\"3\">\u041d\u0411\u0420<\/td>\n<\/tr>\n<tr>\n<td><strong>Seat Cover<\/strong><\/td>\n<td>\u0412\u041a\u0411<\/td>\n<td>CF8<\/td>\n<td>CF8M<\/td>\n<\/tr>\n<tr>\n<td><strong>Stem Connector<\/strong><\/td>\n<td>2\u041a\u044013<\/td>\n<td>304<\/td>\n<td>316<\/td>\n<\/tr>\n<tr>\n<td><strong>\u041a\u043e\u0440\u0435\u043d\u044c<\/strong><\/td>\n<td>2\u041a\u044013<\/td>\n<td>304<\/td>\n<td>316<\/td>\n<\/tr>\n<tr>\n<td><strong>\u041a\u0430\u043f\u043e\u0442<\/strong><\/td>\n<td>\u0412\u041a\u0411<\/td>\n<td>CF8<\/td>\n<td>CF8M<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0423\u043f\u0430\u043a\u043e\u0432\u043a\u0430<\/strong><\/td>\n<td colspan=\"3\">\u041f\u0422\u0424\u042d<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0421\u0430\u043b\u044c\u043d\u0438\u043a\u043e\u0432\u044b\u0439 \u0444\u043b\u0430\u043d\u0435\u0446<\/strong><\/td>\n<td>\u0412\u041a\u0411<\/td>\n<td>CF8<\/td>\n<td>CF8M<\/td>\n<\/tr>\n<tr>\n<td><strong>Bracket<\/strong><\/td>\n<td>\u0412\u041a\u0411<\/td>\n<td>CF8<\/td>\n<td>CF8M<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0428\u0442\u043e\u043a\u043e\u0432\u0430\u044f \u0433\u0430\u0439\u043a\u0430<\/strong><\/td>\n<td>\u041b\u0430\u0442\u0443\u043d\u044c<\/td>\n<td>\u041b\u0430\u0442\u0443\u043d\u044c<\/td>\n<td>\u041b\u0430\u0442\u0443\u043d\u044c<\/td>\n<\/tr>\n<tr>\n<td><strong>\u041f\u0440\u0438\u043a\u043e\u043b\u043e\u0442\u044c<\/strong><\/td>\n<td>65Mn<\/td>\n<td>65Mn<\/td>\n<td>65Mn<\/td>\n<\/tr>\n<tr>\n<td><strong>Bearing Bush<\/strong><\/td>\n<td>#45<\/td>\n<td>#45<\/td>\n<td>#45<\/td>\n<\/tr>\n<tr>\n<td><strong>\u041c\u0430\u0445\u043e\u0432\u0438\u043a<\/strong><\/td>\n<td colspan=\"3\">GGG30 (Epoxy Coated)<\/td>\n<\/tr>\n<tr>\n<td><strong>Stem Guard<\/strong><\/td>\n<td>304<\/td>\n<td>304<\/td>\n<td>304<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Applications That Demand High Reliability<\/h3>\n<p>You can confidently use this square knife gate valve in challenging environments, including:<\/p>\n<ul>\n<li>Pulp &amp; Paper Mills \u2013 Fiber-rich slurry discharge<\/li>\n<li>Mining &amp; Metallurgy \u2013 Thick tailings, abrasive concentrate<\/li>\n<li>Cement &amp; Bulk Solids \u2013 Powder, fly ash, clinker control<\/li>\n<li>Wastewater Treatment \u2013 Sludge and grit isolation<\/li>\n<li>Chemical Plants \u2013 Viscous, corrosive fluid shutoff<\/li>\n<li>Power Plants \u2013 Bottom ash, coal slurry systems<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>\u0427\u0430\u0441\u0442\u043e \u0437\u0430\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0435 \u0432\u043e\u043f\u0440\u043e\u0441\u044b<\/h3>\n<h6>What makes this different from a standard knife gate valve?<\/h6>\n<p>The square port design eliminates discharge restrictions, making it far superior in bulk material handling or gravity discharge applications.<\/p>\n<h6>Can customize the port size or flange type?<\/h6>\n<p>Absolutely. You can specify square port dimensions, flange drilling standards (ANSI\/DIN\/JIS\/GB), and even seat\/gate material.<\/p>\n<h6>Is square port knife gate valve unidirectional or bidirectional?<\/h6>\n<p>It is unidirectional. For bidirectional sealing, please inquire about our double-sealing models.<\/p>","protected":false},"excerpt":{"rendered":"<p>STV Valve Technology Group Co., Ltd is a professional leader China Square Knife Gate Valve,DN500Square Knife Gate Valve, WCB Square Knife Gate Valve,150LB Square Knife Gate Valve,EPDM Square Knife Gate Valve,Square Knife Gate Valve Factory .<\/p>","protected":false},"featured_media":8591,"template":"","meta":[],"product_brand":[],"product_cat":[44,62],"product_tag":[3806,3803,3804,3807,3808,3805],"class_list":{"0":"post-8590","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-gate-valve","7":"product_cat-knife-gate-valve","8":"product_tag-150lb-square-knife-gate-valve","9":"product_tag-china-square-knife-gate-valve","10":"product_tag-dn500square-knife-gate-valve","11":"product_tag-epdm-square-knife-gate-valve","12":"product_tag-square-knife-gate-valve-factory","13":"product_tag-wcb-square-knife-gate-valve","15":"first","16":"instock","17":"shipping-taxable","18":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.stvvalves.com\/ru\/wp-json\/wp\/v2\/product\/8590","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.stvvalves.com\/ru\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.stvvalves.com\/ru\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.stvvalves.com\/ru\/wp-json\/wp\/v2\/media\/8591"}],"wp:attachment":[{"href":"https:\/\/www.stvvalves.com\/ru\/wp-json\/wp\/v2\/media?parent=8590"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.stvvalves.com\/ru\/wp-json\/wp\/v2\/product_brand?post=8590"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.stvvalves.com\/ru\/wp-json\/wp\/v2\/product_cat?post=8590"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.stvvalves.com\/ru\/wp-json\/wp\/v2\/product_tag?post=8590"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}