{"id":8977,"date":"2026-07-19T21:37:37","date_gmt":"2026-07-19T13:37:37","guid":{"rendered":"https:\/\/www.stvvalves.com\/?post_type=product&#038;p=8977"},"modified":"2026-07-19T21:46:41","modified_gmt":"2026-07-19T13:46:41","slug":"y-type-bellow-sealed-globe-valve-dn200-pn25-rf-end","status":"publish","type":"product","link":"https:\/\/www.stvvalves.com\/ro\/products\/y-type-bellow-sealed-globe-valve-dn200-pn25-rf-end\/","title":{"rendered":"Y Type Bellows Sealed Globe Valve, DN200, PN25, RF End"},"content":{"rendered":"<h1>Y Type Bellows Sealed Globe Valve, DN200, PN25, RF End<\/h1>\n<p class=\"isSelectedEnd\">The <strong>Y Type Bellows Sealed Globe Valve, DN200 (8 Inch), PN25, RF Flanged End<\/strong> is a high-performance industrial isolation and throttling valve designed for <strong>zero stem leakage<\/strong>, <strong>low pressure loss<\/strong>, \u0219i <strong>long service life<\/strong>. Combining a <strong>Y-pattern body design<\/strong> with a <strong>multi-ply stainless steel bellows seal<\/strong>, this valve provides excellent flow characteristics while completely preventing external leakage from the valve stem.<\/p>\n<p class=\"isSelectedEnd\">Compared with conventional globe valves, the <strong>Y Pattern Bellows Sealed Globe Valve<\/strong> features a streamlined flow path with a reduced flow angle, resulting in significantly lower pressure drop and improved flow efficiency. This makes it an excellent choice for steam pipelines, thermal oil systems, condensate recovery, petrochemical plants, power stations, and other high-temperature industrial applications.<\/p>\n<p class=\"isSelectedEnd\">Manufactured according to <strong>DIN 3356<\/strong>, <strong>EN 13709<\/strong>, <strong>EN 1092-1<\/strong>, <strong>EN 12266-1<\/strong>, \u0219i <strong>ASME B16.34<\/strong> (available upon request), STV Valves supplies reliable bellows sealed globe valves that comply with international quality standards and project specifications.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1>What Is a Y Type Bellows Sealed Globe Valve?<\/h1>\n<p class=\"isSelectedEnd\">A <strong>Y Type Bellows Sealed Globe Valve<\/strong> is an advanced globe valve featuring:<\/p>\n<ul data-spread=\"false\">\n<li>A <strong>45\u00b0 Y-pattern body<\/strong> that reduces flow resistance.<\/li>\n<li>A <strong>welded stainless steel bellows<\/strong> that eliminates stem leakage.<\/li>\n<li>A <strong>graphite secondary packing<\/strong> for additional operational safety.<\/li>\n<li>A <strong>precision-machined disc and seat<\/strong> for accurate throttling and tight shut-off.<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">The Y-pattern design provides smoother fluid flow than standard globe valves while maintaining excellent regulation capability.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1>Why Choose a Y Pattern Bellows Sealed Globe Valve?<\/h1>\n<p class=\"isSelectedEnd\">Many industrial systems require both reliable shut-off and precise flow control. Traditional globe valves often create higher pressure losses, while conventional stem packing may require periodic maintenance.<\/p>\n<p class=\"isSelectedEnd\">A Y-pattern bellows sealed design solves both issues.<\/p>\n<h2>Key Advantages<\/h2>\n<ul data-spread=\"false\">\n<li>Zero stem leakage<\/li>\n<li>Excellent fugitive emission control<\/li>\n<li>Lower pressure drop than standard globe valves<\/li>\n<li>Smooth fluid flow<\/li>\n<li>Accurate throttling<\/li>\n<li>Long bellows fatigue life<\/li>\n<li>Reduced maintenance<\/li>\n<li>Extended valve service life<\/li>\n<li>Improved plant safety<\/li>\n<li>Environmentally friendly operation<\/li>\n<\/ul>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1>Product Specifications<\/h1>\n<table>\n<tbody>\n<tr>\n<th>Item<\/th>\n<th>Specifica\u021bie<\/th>\n<\/tr>\n<tr>\n<td>numele produsului<\/td>\n<td>Y Type Bellows Sealed Globe Valve<\/td>\n<\/tr>\n<tr>\n<td>Tip supap\u0103<\/td>\n<td>Y Pattern Bellows Sealed Globe Valve<\/td>\n<\/tr>\n<tr>\n<td>Nominal Size<\/td>\n<td>DN200 (8 Inch)<\/td>\n<\/tr>\n<tr>\n<td>Pressure Rating<\/td>\n<td>PN25<\/td>\n<\/tr>\n<tr>\n<td>Body Material<\/td>\n<td>Carbon Steel (GS-C25 \/ WCB Standard)<\/td>\n<\/tr>\n<tr>\n<td>Optional Materials<\/td>\n<td>CF8, CF8M, WC6, WC9, Duplex Stainless Steel, Super Duplex<\/td>\n<\/tr>\n<tr>\n<td>Bellows Material<\/td>\n<td>Multi-layer SS316L Stainless Steel<\/td>\n<\/tr>\n<tr>\n<td>Stem Material<\/td>\n<td>O\u0163el inoxidabil<\/td>\n<\/tr>\n<tr>\n<td>Disc Material<\/td>\n<td>Stainless Steel with Stellite Facing (Optional)<\/td>\n<\/tr>\n<tr>\n<td>Seat Material<\/td>\n<td>Integral Seat \/ Stellite Hard Facing<\/td>\n<\/tr>\n<tr>\n<td>Ambalare<\/td>\n<td>Flexible Graphite Secondary Seal<\/td>\n<\/tr>\n<tr>\n<td>Termina\u021bi conexiunea<\/td>\n<td>RF Flanged End<\/td>\n<\/tr>\n<tr>\n<td>Flange Standard<\/td>\n<td>EN 1092-1 PN25<\/td>\n<\/tr>\n<tr>\n<td>Standard de proiectare<\/td>\n<td>DIN 3356 \/ EN 13709<\/td>\n<\/tr>\n<tr>\n<td>Inspection Standard<\/td>\n<td>EN 12266-1 \/ API 598<\/td>\n<\/tr>\n<tr>\n<td>Temperature Range<\/td>\n<td>-29\u00b0C to 425\u00b0C (Material Dependent)<\/td>\n<\/tr>\n<tr>\n<td>Opera\u021biune<\/td>\n<td>Handwheel (Gear, Pneumatic &amp; Electric Optional)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1>How Does the Bellows Seal Work?<\/h1>\n<p class=\"isSelectedEnd\">Unlike conventional packed valves, the bellows seal creates a fully welded metallic barrier between the process fluid and the external environment.<\/p>\n<p class=\"isSelectedEnd\">During valve operation:<\/p>\n<ol start=\"1\" data-spread=\"false\">\n<li>The stem moves vertically.<\/li>\n<li>The welded bellows expands and contracts without exposing the process media.<\/li>\n<li>The process fluid remains completely enclosed.<\/li>\n<li>Flexible graphite packing serves as a secondary emergency seal.<\/li>\n<\/ol>\n<p class=\"isSelectedEnd\">This dual sealing system greatly improves reliability and minimizes maintenance.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1>Main Features<\/h1>\n<h2>Y Pattern Body Design<\/h2>\n<p class=\"isSelectedEnd\">Compared with standard globe valves, the Y-pattern body offers:<\/p>\n<ul data-spread=\"false\">\n<li>Reduced pressure loss<\/li>\n<li>Improved flow coefficient (Cv)<\/li>\n<li>Lower operating torque<\/li>\n<li>Better energy efficiency<\/li>\n<li>Reduced turbulence<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">These advantages make the valve particularly suitable for steam and thermal fluid systems.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2>Zero Fugitive Emissions<\/h2>\n<p class=\"isSelectedEnd\">The stainless steel bellows prevents leakage around the valve stem, helping industrial plants comply with increasingly strict environmental regulations.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2>Precision Flow Control<\/h2>\n<p class=\"isSelectedEnd\">The globe valve design provides:<\/p>\n<ul data-spread=\"false\">\n<li>Accurate throttling<\/li>\n<li>Stable pressure regulation<\/li>\n<li>Reliable shut-off<\/li>\n<li>Smooth operation<\/li>\n<\/ul>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2>Long Bellows Service Life<\/h2>\n<p class=\"isSelectedEnd\">The multi-layer stainless steel bellows is designed for thousands of operating cycles while maintaining reliable sealing performance.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2>Secondary Safety Packing<\/h2>\n<p class=\"isSelectedEnd\">Flexible graphite packing provides an additional sealing barrier, ensuring continued protection even under demanding operating conditions.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1>Typical Applications<\/h1>\n<h2>Steam Distribution Systems<\/h2>\n<p class=\"isSelectedEnd\">Widely used in:<\/p>\n<ul data-spread=\"false\">\n<li>Main steam pipelines<\/li>\n<li>Boiler outlets<\/li>\n<li>Steam headers<\/li>\n<li>Steam distribution networks<\/li>\n<\/ul>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2>Sisteme de ulei termic<\/h2>\n<p class=\"isSelectedEnd\">Ideal for:<\/p>\n<ul data-spread=\"false\">\n<li>Heat transfer oil<\/li>\n<li>High-temperature circulation systems<\/li>\n<li>Industrial heating equipment<\/li>\n<\/ul>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2>Petrochemical Plants<\/h2>\n<p class=\"isSelectedEnd\">Suitable for:<\/p>\n<ul data-spread=\"false\">\n<li>Hydrocarbon processing<\/li>\n<li>Refinery utilities<\/li>\n<li>Solvent systems<\/li>\n<li>Process pipelines<\/li>\n<\/ul>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2>Chemical Processing<\/h2>\n<p class=\"isSelectedEnd\">Excellent for:<\/p>\n<ul data-spread=\"false\">\n<li>Organic chemicals<\/li>\n<li>Industrial solvents<\/li>\n<li>Process liquids<\/li>\n<li>High-temperature chemical service<\/li>\n<\/ul>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2>Power Generation<\/h2>\n<p class=\"isSelectedEnd\">Common applications include:<\/p>\n<ul data-spread=\"false\">\n<li>Boiler feed systems<\/li>\n<li>Turbine auxiliary piping<\/li>\n<li>Condensate recovery<\/li>\n<li>Heat recovery systems<\/li>\n<\/ul>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2>Industrial Utility Pipelines<\/h2>\n<p class=\"isSelectedEnd\">Installed in:<\/p>\n<ul data-spread=\"false\">\n<li>District heating<\/li>\n<li>Industrial steam networks<\/li>\n<li>Hot water systems<\/li>\n<li>Process utility services<\/li>\n<\/ul>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1>Optional Configurations<\/h1>\n<p class=\"isSelectedEnd\">STV Valves offers a wide range of customized options:<\/p>\n<ul data-spread=\"false\">\n<li>Electric Actuator<\/li>\n<li>Pneumatic Actuator<\/li>\n<li>Gear Operator<\/li>\n<li>Position Indicator<\/li>\n<li>Locking Device<\/li>\n<li>Stellite Trim<\/li>\n<li>Design sigur la foc<\/li>\n<li>Low Emission Packing<\/li>\n<li>ISO 15848 Fugitive Emission Design<\/li>\n<li>NACE MR0175 Compliance<\/li>\n<li>EN 10204 3.1 \/ 3.2 Material Certificates<\/li>\n<li>Third-Party Inspection (SGS, BV, DNV, T\u00dcV)<\/li>\n<\/ul>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1>Inspection &amp; Quality Control<\/h1>\n<p class=\"isSelectedEnd\">Every valve is inspected before shipment.<\/p>\n<p class=\"isSelectedEnd\">Testing includes:<\/p>\n<ul data-spread=\"false\">\n<li>Hydrostatic Shell Test<\/li>\n<li>Seat Leakage Test<\/li>\n<li>Bellows Leak Test<\/li>\n<li>Air Pressure Test<\/li>\n<li>Backseat Test<\/li>\n<li>Dimensional Inspection<\/li>\n<li>Material Verification (PMI)<\/li>\n<li>Functional Operation Test<\/li>\n<li>Final Visual Inspection<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">Inspection is carried out according to <a href=\"https:\/\/www.bellowvalves.com\/Bellows-Seal-Globe-Valve-739-1.html\" target=\"_blank\" rel=\"noopener\"><strong>EN 12266-1<\/strong><\/a>, <strong>API 598<\/strong>, and customer project specifications.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1>Why Choose STV Valves?<\/h1>\n<p class=\"isSelectedEnd\">STV Valves specializes in manufacturing industrial valves for steam, petrochemical, oil &amp; gas, power generation, marine, chemical processing, mining, and water treatment industries.<\/p>\n<h3>Our Product Range<\/h3>\n<ul data-spread=\"false\">\n<li>Bellows Sealed Globe Valves<\/li>\n<li>Y Pattern Globe Valves<\/li>\n<li>Gate Valves<\/li>\n<li>Supape cu bil\u0103<\/li>\n<li>Supape de re\u021binere<\/li>\n<li>Butterfly Valves<\/li>\n<li>Knife Gate Valves<\/li>\n<li>Y Strainers<\/li>\n<li>Basket Strainers<\/li>\n<\/ul>\n<h3>Available Materials<\/h3>\n<ul data-spread=\"false\">\n<li>ASTM A216 WCB<\/li>\n<li>GS-C25<\/li>\n<li>ASTM A351 CF8 \/ CF8M<\/li>\n<li>ASTM A217 WC6 \/ WC9<\/li>\n<li>Duplex Stainless Steel<\/li>\n<li>Super Duplex Stainless Steel<\/li>\n<li>Titan<\/li>\n<li>Hastelloy C276<\/li>\n<li>Monel<\/li>\n<li>Inconel<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">With advanced CNC machining, strict quality control, and extensive export experience, STV Valves provides reliable valve solutions that comply with API, ASME, DIN, EN, and ISO standards.<\/p>\n<p class=\"isSelectedEnd\">Visit <a href=\"http:\/\/www.stvvalves.com\/ro\/\"><strong>www.stvvalves.com<\/strong><\/a> to request a quotation or technical support.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1>Frequently Asked Questions (FAQ)<\/h1>\n<h3>What is the advantage of a Y pattern globe valve?<\/h3>\n<p class=\"isSelectedEnd\">A Y pattern globe valve reduces pressure loss compared with a conventional globe valve while maintaining excellent throttling performance, making it ideal for high-flow steam and thermal oil systems.<\/p>\n<h3>Why choose a bellows sealed valve?<\/h3>\n<p class=\"isSelectedEnd\">The welded stainless steel bellows prevents stem leakage, reduces maintenance, improves safety, and minimizes fugitive emissions.<\/p>\n<h3>Is the DN200 PN25 valve suitable for steam?<\/h3>\n<p class=\"isSelectedEnd\">Yes. It is specifically designed for medium-pressure steam, condensate, thermal oil, and other high-temperature industrial services.<\/p>\n<h3>Can this valve be automated?<\/h3>\n<p class=\"isSelectedEnd\">Yes. It is available with electric, pneumatic, or gear-operated actuators.<\/p>\n<h3>Which standards does this valve comply with?<\/h3>\n<p class=\"isSelectedEnd\">It can be manufactured according to <strong>DIN 3356<\/strong>, <strong>EN 13709<\/strong>, <strong>EN 1092-1<\/strong>, <strong>EN 12266-1<\/strong>, <strong>ASME B16.34<\/strong>, and project-specific requirements.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1>Why This Valve Is the Right Choice<\/h1>\n<p>The <strong>Y Type Bellows Sealed Globe Valve, DN200, PN25, RF End<\/strong> combines a low-resistance Y-pattern body with advanced bellows sealing technology to provide <strong>excellent flow efficiency, zero stem leakage, precise throttling, and long-term reliability<\/strong>. It is an ideal solution for industrial facilities seeking higher energy efficiency, environmental compliance, and dependable performance in demanding service conditions.<\/p>","protected":false},"excerpt":{"rendered":"<p>STV Valve Technology Group Co., Ltd is a professional leader China Y Type Bellows Sealed Globe Valve, Y Pattern Bellows Seal Globe Valve, DN200 Globe Valve, PN25 Globe Valve, 8 Inch Globe Valve, RF Flanged Globe Valve, DIN 3356 Globe Valve, EN 13709 Globe Valve, Bellows Seal Valve, Steam Globe Valve, Thermal Oil Globe Valve, Zero Leakage Globe Valve, Industrial Globe Valve Manufacturer, Bellows Sealed Valve Supplier, STV VALVES Manufacturer with high quality and competitive price.<\/p>\n<p>&nbsp;<\/p>","protected":false},"featured_media":8978,"template":"","meta":[],"product_brand":[],"product_cat":[65,45],"product_tag":[4281,4283,4284,1687,4279,4282,4130,4280,4245,4154,4204,4155,4278,4277,4270],"class_list":{"0":"post-8977","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bellow-seal-globe-valve","7":"product_cat-globe-valve","8":"product_tag-8-inch-globe-valve","9":"product_tag-bellows-seal-valve","10":"product_tag-bellows-sealed-valve-supplier","11":"product_tag-din-3356-globe-valve","12":"product_tag-dn200-globe-valve","13":"product_tag-en-13709-globe-valve","14":"product_tag-industrial-globe-valve-manufacturer","15":"product_tag-pn25-globe-valve","16":"product_tag-rf-flanged-globe-valve","17":"product_tag-steam-globe-valve","18":"product_tag-stv-valves","19":"product_tag-thermal-oil-globe-valve","20":"product_tag-y-pattern-bellows-seal-globe-valve","21":"product_tag-y-type-bellows-sealed-globe-valve","22":"product_tag-zero-leakage-globe-valve","24":"first","25":"instock","26":"shipping-taxable","27":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/product\/8977","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/media\/8978"}],"wp:attachment":[{"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/media?parent=8977"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/product_brand?post=8977"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/product_cat?post=8977"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/product_tag?post=8977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}