{"id":1292,"date":"2025-10-12T01:55:03","date_gmt":"2025-10-12T01:55:03","guid":{"rendered":"https:\/\/stvvalve.com\/?p=1292"},"modified":"2025-10-12T01:55:03","modified_gmt":"2025-10-12T01:55:03","slug":"understanding-en558-1-and-api598-standards-for-y-type-strainers","status":"publish","type":"post","link":"https:\/\/stvvalve.com\/es\/understanding-en558-1-and-api598-standards-for-y-type-strainers\/","title":{"rendered":"Understanding EN558-1 and API598 Standards for Y Type Strainers"},"content":{"rendered":"
Y Type Strainers<\/a> are critical for protecting pipelines from debris, but their performance and safety depend on compliance with industry standards. Two of the most influential standards\u2014<\/span>EN558-1<\/span> (European) and <\/span>API598<\/span> (American Petroleum Institute)\u2014set benchmarks for design, testing, and quality. For engineers, buyers, or plant managers, understanding these standards isn\u2019t just about compliance\u2014it\u2019s about ensuring the strainer fits your system\u2019s needs (whether you\u2019re operating in Europe, North America, or global markets). Below\u2019s a clear breakdown of what each standard entails, their key requirements, and how they differ for Y Type Strainers.<\/span>\u200b<\/span><\/span><\/div>\n
What Is EN558-1? The European Standard for Industrial Valves (Including Y Type Strainers)<\/span><\/span>\u200b<\/span><\/div>\n
EN558-1 is a <\/span><\/span>European Committee for Standardization (CEN)<\/span><\/span> standard titled <\/span><\/span>\u201cIndustrial valves \u2013 Face-to-face and centre-to-face dimensions for metal valves for use in flanged pipe systems \u2013 Part 1: Steel and cast iron valves\u201d<\/span><\/span>. While it\u2019s not exclusive to Y Type Strainers, it\u2019s mandatory for strainers used in European industrial pipelines (and often adopted in other regions like the Middle East or Asia).<\/span><\/span>\u200b<\/span><\/div>\n
Core Scope of EN558-1 for Y Type Strainers<\/span><\/span>\u200b<\/span><\/div>\n
EN558-1 focuses on <\/span><\/span>dimensional consistency<\/span><\/span>\u2014ensuring valves (including Y Type Strainers) fit seamlessly into flanged pipe systems. Unlike API598 (which emphasizes testing), EN558-1\u2019s primary goal is to eliminate compatibility issues between strainers from different manufacturers and European-standard pipelines.<\/span><\/span>\u200b<\/span><\/div>\n
Key Requirements for Y Type Strainers<\/span><\/span>\u200b<\/span><\/div>\n
For Y Type Strainers, EN558-1 mandates specific dimensions to align with European pipe standards (e.g., EN 1092-1 for flanges). The most critical requirements include:<\/span><\/span>\u200b<\/span><\/div>\n
\n
    \n
  1. Face-to-Face (F2F) Dimensions<\/span><\/span>:<\/span><\/span>\u200b<\/span><\/li>\n<\/ol>\n<\/div>\n
    The distance between the two flange faces of the strainer (where it connects to the pipeline) must match predefined values based on:<\/span><\/span>\u200b<\/span><\/div>\n
    \n
      \n
    • Pipe size (DN 15 to DN 400, the European \u201cNominal Diameter\u201d system, equivalent to \u00bd inch to 16 inches).<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
      \n
        \n
      • Pressure class (PN 10, PN 16, PN 25, PN 40\u2014European \u201cPressure Nominal\u201d ratings, e.g., PN 16 = ~16 bar \/ 232 psi).<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
        Example<\/span><\/span>: A DN 50 (2-inch) Y Type Strainer with PN 16 must have a face-to-face dimension of 143 mm (per EN558-1 Table 1)\u2014ensuring it fits any EN 1092-1 PN 16 flange.<\/span><\/span>\u200b<\/span><\/div>\n
        \n
          \n
        1. Centre-to-Face (C2F) Dimensions<\/span><\/span>:<\/span><\/span>\u200b<\/span><\/li>\n<\/ol>\n<\/div>\n
          For strainers with offset flanges (rare for Y Types, but possible in custom designs), EN558-1 defines the distance from the centerline of the pipe to the flange face\u2014critical for tight installations (e.g., skid-mounted systems).<\/span><\/span>\u200b<\/span><\/div>\n
          \n
            \n
          1. Flange Compatibility<\/span><\/span>:<\/span><\/span>\u200b<\/span><\/li>\n<\/ol>\n<\/div>\n
            EN558-1 requires Y Type Strainers to use flanges compliant with EN 1092-1 (the European standard for flanged joints). This includes flange thickness, bolt hole spacing, and gasket groove dimensions\u2014ensuring a leak-tight connection with European pipelines.<\/span><\/span>\u200b<\/span><\/div>\n
            \n
              \n
            1. Material Notes<\/span><\/span>:<\/span><\/span>\u200b<\/span><\/li>\n<\/ol>\n<\/div>\n
              While EN558-1 doesn\u2019t specify material compositions (unlike API598\u2019s references to NACE MR0175), it requires strainer bodies to be made of \u201csteel or cast iron\u201d (the focus of Part 1) to meet dimensional stability requirements. For corrosive applications, manufacturers often use EN 1.4401 (316 stainless steel) or EN 1.0402 (carbon steel)\u2014materials that maintain EN558-1\u2019s dimensional tolerances under pressure.<\/span><\/span>\u200b<\/span><\/div>\n
              What Is API598? The Global Standard for Valve Inspection and Testing (Including Y Type Strainers)<\/span><\/span>\u200b<\/span><\/div>\n
              API598 is an <\/span><\/span>American Petroleum Institute<\/span><\/span> standard titled <\/span><\/span>\u201cValve Inspection and Testing\u201d<\/span><\/span>. Unlike EN558-1 (dimensional focus), API598 is all about <\/span><\/span>performance validation<\/span><\/span>\u2014ensuring valves (and Y Type Strainers) are leak-tight, structurally sound, and reliable for industrial use. It\u2019s the global gold standard for oil and gas, chemical, and power industries\u2014even in regions where EN558-1 governs dimensions.<\/span><\/span>\u200b<\/span><\/div>\n
              Core Scope of API598 for Y Type Strainers<\/span><\/span>\u200b<\/span><\/div>\n
              API598 applies to all industrial valves, including Y Type Strainers, and defines mandatory inspection and testing procedures before a strainer leaves the factory. Its goal is to eliminate defective units and ensure consistent performance across manufacturers.<\/span><\/span>\u200b<\/span><\/div>\n
              Key Requirements for Y Type Strainers<\/span><\/span>\u200b<\/span><\/div>\n
              For Y Type Strainers, API598\u2019s requirements focus on <\/span><\/span>pressure testing<\/span><\/span> and <\/span><\/span>leakage control<\/span><\/span>\u2014critical for high-pressure or hazardous fluid systems. The most important tests include:<\/span><\/span>\u200b<\/span><\/div>\n
              \n
                \n
              1. Hydrostatic Shell Test (Body Test)<\/span><\/span>:<\/span><\/span>\u200b<\/span><\/li>\n<\/ol>\n<\/div>\n
                This test verifies the strainer body\u2019s ability to withstand pressure without cracking or leaking.<\/span><\/span>\u200b<\/span><\/div>\n
                \n
                  \n
                • Procedure: Fill the strainer body with water (or a non-corrosive fluid) and apply pressure equal to <\/span><\/span>1.5 times the strainer\u2019s rated pressure<\/span><\/span> (e.g., 300 psi for a Class 150 strainer) for at least 60 seconds.<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
                  \n
                    \n
                  • Pass Criteria: No visible leakage, sweating, or deformation of the body. For Y Type Strainers, special attention is paid to the Y-branch (a common stress point) and flange connections.<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
                    \n
                      \n
                    1. Hydrostatic Seat Test (Leakage Test)<\/span><\/span>:<\/span><\/span>\u200b<\/span><\/li>\n<\/ol>\n<\/div>\n
                      This test checks the strainer\u2019s screen and seat (if equipped) for leakage\u2014ensuring debris is trapped and clean fluid flows through.<\/span><\/span>\u200b<\/span><\/div>\n
                      \n
                        \n
                      • Procedure: Close the strainer (if it has a valve component; most Y Types are \u201cinline\u201d but may have a blowdown valve) and apply <\/span><\/span>1.1 times the rated pressure<\/span><\/span> to one side. Monitor the opposite side for leakage.<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
                        \n
                          \n
                        • Pass Criteria: For Y Type Strainers with metal screens, API598 allows minimal leakage (\u2264 0.16 cm\u00b3\/min per inch of pipe size). For strainers with soft-sealed screens (rare), zero leakage is required.<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
                          \n
                            \n
                          1. Pneumatic Test (Optional, for Gas Service)<\/span><\/span>:<\/span><\/span>\u200b<\/span><\/li>\n<\/ol>\n<\/div>\n
                            For Y Type Strainers used in gas pipelines (e.g., natural gas), API598 allows a pneumatic test instead of hydrostatic testing.<\/span><\/span>\u200b<\/span><\/div>\n
                            \n
                              \n
                            • Procedure: Pressurize the strainer with air or nitrogen to <\/span><\/span>1.1 times the rated pressure<\/span><\/span> and apply a soap solution to all joints.<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
                              \n
                                \n
                              • Pass Criteria: No bubbles (indicating zero leakage)\u2014critical for flammable gas systems.<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
                                \n
                                  \n
                                1. Visual Inspection<\/span><\/span>:<\/span><\/span>\u200b<\/span><\/li>\n<\/ol>\n<\/div>\n
                                  API598 requires a thorough visual check of all components:<\/span><\/span>\u200b<\/span><\/div>\n
                                  \n
                                    \n
                                  • Screen mesh: No tears, holes, or loose wires (must match the specified mesh size, e.g., 40 mesh for removing particles \u2265 0.42 mm).<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
                                    \n
                                      \n
                                    • Body and flanges: No cracks, casting defects, or rough surfaces that could cause leaks.<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
                                      \n
                                        \n
                                      • Gaskets and seals: Properly installed and made of compatible materials (e.g., Buna-N for oil, EPDM for water).<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
                                        \n
                                          \n
                                        1. Documentation<\/span><\/span>:<\/span><\/span>\u200b<\/span><\/li>\n<\/ol>\n<\/div>\n
                                          API598 mandates a <\/span><\/span>test certificate<\/span><\/span> for each strainer, including:<\/span><\/span>\u200b<\/span><\/div>\n
                                          \n
                                            \n
                                          • Strainer model, serial number, and rated pressure\/temperature.<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
                                            \n
                                              \n
                                            • Test dates, pressures, and results.<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
                                              \n
                                                \n
                                              • Material certifications (e.g., ASTM A105 for carbon steel bodies).<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
                                                EN558-1 vs. API598: Key Differences for Y Type Strainers<\/span><\/span>\u200b<\/span><\/div>\n
                                                While both standards ensure quality, they focus on distinct aspects of Y Type Strainers. The table below summarizes their core differences:<\/span><\/span>\u200b<\/span><\/div>\n
                                                \n
                                                \u200b<\/span><\/p>\n
                                                \n
                                                \n
                                                \n
                                                \n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n
                                                \n
                                                \n
                                                \n
                                                \n
                                                Aspect<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                \n
                                                <\/div>\n<\/div>\n<\/div>\n<\/td>\n
                                                		\n
                                                \n
                                                \n
                                                \n
                                                EN558-1<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                \n
                                                <\/div>\n<\/div>\n<\/div>\n<\/td>\n
                                                		\n
                                                \n
                                                \n
                                                \n
                                                API598<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                \n
                                                <\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n
                                                \n
                                                \n
                                                \n
                                                \n
                                                Primary Focus<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                \n
                                                <\/div>\n<\/div>\n<\/div>\n<\/td>\n
                                                		\n
                                                \n
                                                \n
                                                \n
                                                Dimensional consistency (fit with pipelines)<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                \n
                                                <\/div>\n<\/div>\n<\/div>\n<\/td>\n
                                                		\n
                                                \n
                                                \n
                                                \n
                                                Performance testing (leakage, pressure resistance)<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                \n
                                                <\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n
                                                \n
                                                \n
                                                \n
                                                \n
                                                Key Requirements<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                \n
                                                <\/div>\n<\/div>\n<\/div>\n<\/td>\n
                                                		\n
                                                \n
                                                \n
                                                \n
                                                Face-to-face\/centre-to-face dimensions; flange compatibility (EN 1092-1)<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                \n
                                                <\/div>\n<\/div>\n<\/div>\n<\/td>\n
                                                		\n
                                                \n
                                                \n
                                                \n
                                                Hydrostatic\/pneumatic testing; visual inspection; documentation<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                \n
                                                <\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n
                                                \n
                                                \n
                                                \n
                                                \n
                                                Regional Use<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                \n
                                                <\/div>\n<\/div>\n<\/div>\n<\/td>\n
                                                		\n
                                                \n
                                                \n
                                                \n
                                                Europe, Middle East, Asia (EN-standard markets)<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                \n
                                                <\/div>\n<\/div>\n<\/div>\n<\/td>\n
                                                		\n
                                                \n
                                                \n
                                                \n
                                                Global (oil\/gas, chemical industries); mandatory in North America<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                \n
                                                <\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n
                                                \n
                                                \n
                                                \n
                                                \n
                                                Material Focus<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                \n
                                                <\/div>\n<\/div>\n<\/div>\n<\/td>\n
                                                		\n
                                                \n
                                                \n
                                                \n
                                                Steel\/cast iron (dimensional stability)<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                \n
                                                <\/div>\n<\/div>\n<\/div>\n<\/td>\n
                                                		\n
                                                \n
                                                \n
                                                \n
                                                No material mandates, but references API standards (e.g., API 602 for small strainers)<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                \n
                                                <\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n
                                                \n
                                                \n
                                                \n
                                                \n
                                                Applicability to Y Types<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                \n
                                                <\/div>\n<\/div>\n<\/div>\n<\/td>\n
                                                		\n
                                                \n
                                                \n
                                                \n
                                                Ensures strainers fit European pipelines<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                \n
                                                <\/div>\n<\/div>\n<\/div>\n<\/td>\n
                                                		\n
                                                \n
                                                \n
                                                \n
                                                Ensures strainers perform reliably in high-pressure\/hazardous systems<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                \n
                                                <\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

                                                \u200b<\/span><\/div>\n

                                                When to Use Which? Practical Guidance for Y Type Strainers<\/span><\/span>\u200b<\/span><\/div>\n
                                                \n
                                                  \n
                                                1. If You\u2019re Operating in Europe<\/span><\/span>:<\/span><\/span>\u200b<\/span><\/li>\n<\/ol>\n<\/div>\n
                                                  \n
                                                    \n
                                                  • Comply with <\/span><\/span>both standards<\/span><\/span>: Use EN558-1 for dimensional fit (to match EN 1092-1 flanges) and API598 for performance testing (to ensure leak-tight operation). Most European manufacturers offer Y Type Strainers certified to both.<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
                                                    \n
                                                      \n
                                                    1. If You\u2019re in Oil\/Gas or Global Markets<\/span><\/span>:<\/span><\/span>\u200b<\/span><\/li>\n<\/ol>\n<\/div>\n
                                                      \n
                                                        \n
                                                      • Prioritize <\/span><\/span>API598<\/span><\/span>: It\u2019s the industry standard for high-pressure, hazardous fluid systems (e.g., offshore oil platforms). If your pipeline uses ANSI flanges (North American standard), EN558-1 isn\u2019t required\u2014but API598 is mandatory for safety.<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
                                                        \n
                                                          \n
                                                        1. If You Need a \u201cGlobal Strainer\u201d<\/span><\/span>:<\/span><\/span>\u200b<\/span><\/li>\n<\/ol>\n<\/div>\n
                                                          \n
                                                            \n
                                                          • Choose a Y Type Strainer certified to <\/span><\/span>EN558-1 (PN 16\/PN 40)<\/span><\/span> and <\/span><\/span>API598 (Class 150\/300)<\/span><\/span>. This ensures compatibility with both European (EN) and North American (ANSI) pipelines, making it ideal for multinational facilities.<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
                                                            Final Thought: Standards = Consistency + Safety<\/span><\/span>\u200b<\/span><\/div>\n
                                                            EN558-1 and API598 serve complementary roles for Y Type Strainers: EN558-1 ensures they <\/span><\/span>fit<\/span><\/span> your pipeline, while API598 ensures they <\/span><\/span>perform<\/span><\/span> as expected. For industrial operations, ignoring these standards risks costly mistakes\u2014like a strainer that doesn\u2019t fit (EN558-1 non-compliance) or leaks under pressure (API598 non-compliance).<\/span><\/span>\u200b<\/span><\/div>\n
                                                            When selecting a Y Type Strainer, always ask for certification documents: an EN558-1 dimensional report and an API598 test certificate. These aren\u2019t just pieces of paper\u2014they\u2019re guarantees that your strainer will protect your system, minimize downtime, and keep your operations safe.<\/span><\/span>\u200b<\/span><\/div>","protected":false},"excerpt":{"rendered":"

                                                            Y Type Strainers are critical for protecting pipelines from debris, but their performance and safety depend on compliance with industry standards. Two of the most influential standards\u2014EN558-1 (European) and API598 (American Petroleum Institute)\u2014set benchmarks for design, testing, and quality. For engineers, buyers, or plant managers, understanding these standards isn\u2019t just about compliance\u2014it\u2019s about ensuring the […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[15,14],"tags":[356,357,358,359,360,361],"class_list":["post-1292","post","type-post","status-publish","format-standard","hentry","category-industry-valve-news","category-news","tag-cf8m-y-type-strainer","tag-china-en558-1-y-type-strainer","tag-din-3352-y-type-strainer","tag-dn50-cf8m-y-type-strainer","tag-pn16-cf8m-y-type-strainer","tag-rf-ends-cf8m-y-type-strainer-manufacturer"],"yoast_head":"\nUnderstanding EN558-1 and API598 Standards for Y Type Strainers - China Industry Valves Supplier & Manufacturer<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/stvvalve.com\/es\/understanding-en558-1-and-api598-standards-for-y-type-strainers\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Understanding EN558-1 and API598 Standards for Y Type Strainers - China Industry Valves Supplier & Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Y Type Strainers are critical for protecting pipelines from debris, but their performance and safety depend on compliance with industry standards. Two of the most influential standards\u2014EN558-1 (European) and API598 (American Petroleum Institute)\u2014set benchmarks for design, testing, and quality. For engineers, buyers, or plant managers, understanding these standards isn\u2019t just about compliance\u2014it\u2019s about ensuring the […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/stvvalve.com\/es\/understanding-en558-1-and-api598-standards-for-y-type-strainers\/\" \/>\n<meta property=\"og:site_name\" content=\"China Industry Valves Supplier & Manufacturer\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/JalenLee567\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-10-12T01:55:03+00:00\" \/>\n<meta name=\"author\" content=\"stvvalve\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@RainLee18500645\" \/>\n<meta name=\"twitter:site\" content=\"@RainLee18500645\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"stvvalve\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/stvvalve.com\\\/understanding-en558-1-and-api598-standards-for-y-type-strainers\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/stvvalve.com\\\/understanding-en558-1-and-api598-standards-for-y-type-strainers\\\/\"},\"author\":{\"name\":\"stvvalve\",\"@id\":\"https:\\\/\\\/stvvalve.com\\\/#\\\/schema\\\/person\\\/34a3237d0f136ce0b0fd71258fb80dd6\"},\"headline\":\"Understanding EN558-1 and API598 Standards for Y Type Strainers\",\"datePublished\":\"2025-10-12T01:55:03+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/stvvalve.com\\\/understanding-en558-1-and-api598-standards-for-y-type-strainers\\\/\"},\"wordCount\":1326,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/stvvalve.com\\\/#organization\"},\"keywords\":[\"CF8M Y Type Strainer\",\"China EN558-1 Y Type Strainer\",\"DIN 3352 Y Type Strainer\",\"DN50 CF8M Y Type Strainer\",\"PN16 CF8M Y Type Strainer\",\"RF Ends CF8M Y Type Strainer manufacturer\"],\"articleSection\":[\"industry valve news\",\"News\"],\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/stvvalve.com\\\/understanding-en558-1-and-api598-standards-for-y-type-strainers\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/stvvalve.com\\\/understanding-en558-1-and-api598-standards-for-y-type-strainers\\\/\",\"url\":\"https:\\\/\\\/stvvalve.com\\\/understanding-en558-1-and-api598-standards-for-y-type-strainers\\\/\",\"name\":\"Understanding EN558-1 and API598 Standards for Y Type Strainers - China Industry Valves Supplier & Manufacturer\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/stvvalve.com\\\/#website\"},\"datePublished\":\"2025-10-12T01:55:03+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/stvvalve.com\\\/understanding-en558-1-and-api598-standards-for-y-type-strainers\\\/#breadcrumb\"},\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/stvvalve.com\\\/understanding-en558-1-and-api598-standards-for-y-type-strainers\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/stvvalve.com\\\/understanding-en558-1-and-api598-standards-for-y-type-strainers\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/stvvalve.com\\\/home\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Understanding EN558-1 and API598 Standards for Y Type Strainers\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/stvvalve.com\\\/#website\",\"url\":\"https:\\\/\\\/stvvalve.com\\\/\",\"name\":\"China Industry Valves Supplier & Manufacturer\",\"description\":\"Ball Valve,Gate Valve,Globe Valve,Check Valve, Y Strainer.We wholesale many kinds of ball valves such as stainless steel ball valve, forged steel gate valve, forged steel check valve.Contact us for more information.\",\"publisher\":{\"@id\":\"https:\\\/\\\/stvvalve.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/stvvalve.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"es\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/stvvalve.com\\\/#organization\",\"name\":\"China Industry Valves Supplier & Manufacturer\",\"url\":\"https:\\\/\\\/stvvalve.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\\\/\\\/stvvalve.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/stvvalve.com\\\/wp-content\\\/uploads\\\/2021\\\/08\\\/logo_STV.jpg\",\"contentUrl\":\"https:\\\/\\\/stvvalve.com\\\/wp-content\\\/uploads\\\/2021\\\/08\\\/logo_STV.jpg\",\"width\":602,\"height\":187,\"caption\":\"China Industry Valves Supplier & Manufacturer\"},\"image\":{\"@id\":\"https:\\\/\\\/stvvalve.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/JalenLee567\\\/\",\"https:\\\/\\\/x.com\\\/RainLee18500645\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/stvvalve.com\\\/#\\\/schema\\\/person\\\/34a3237d0f136ce0b0fd71258fb80dd6\",\"name\":\"stvvalve\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/755328fdf1d994875343337a29b6cd4727965089342e761325e371daed38acdc?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/755328fdf1d994875343337a29b6cd4727965089342e761325e371daed38acdc?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/755328fdf1d994875343337a29b6cd4727965089342e761325e371daed38acdc?s=96&d=mm&r=g\",\"caption\":\"stvvalve\"},\"sameAs\":[\"https:\\\/\\\/stvvalve.com\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Understanding EN558-1 and API598 Standards for Y Type Strainers - China Industry Valves Supplier & Manufacturer","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/stvvalve.com\/es\/understanding-en558-1-and-api598-standards-for-y-type-strainers\/","og_locale":"es_ES","og_type":"article","og_title":"Understanding EN558-1 and API598 Standards for Y Type Strainers - China Industry Valves Supplier & Manufacturer","og_description":"Y Type Strainers are critical for protecting pipelines from debris, but their performance and safety depend on compliance with industry standards. Two of the most influential standards\u2014EN558-1 (European) and API598 (American Petroleum Institute)\u2014set benchmarks for design, testing, and quality. For engineers, buyers, or plant managers, understanding these standards isn\u2019t just about compliance\u2014it\u2019s about ensuring the […]","og_url":"https:\/\/stvvalve.com\/es\/understanding-en558-1-and-api598-standards-for-y-type-strainers\/","og_site_name":"China Industry Valves Supplier & Manufacturer","article_publisher":"https:\/\/www.facebook.com\/JalenLee567\/","article_published_time":"2025-10-12T01:55:03+00:00","author":"stvvalve","twitter_card":"summary_large_image","twitter_creator":"@RainLee18500645","twitter_site":"@RainLee18500645","twitter_misc":{"Escrito por":"stvvalve","Tiempo de lectura":"6 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/stvvalve.com\/understanding-en558-1-and-api598-standards-for-y-type-strainers\/#article","isPartOf":{"@id":"https:\/\/stvvalve.com\/understanding-en558-1-and-api598-standards-for-y-type-strainers\/"},"author":{"name":"stvvalve","@id":"https:\/\/stvvalve.com\/#\/schema\/person\/34a3237d0f136ce0b0fd71258fb80dd6"},"headline":"Understanding EN558-1 and API598 Standards for Y Type Strainers","datePublished":"2025-10-12T01:55:03+00:00","mainEntityOfPage":{"@id":"https:\/\/stvvalve.com\/understanding-en558-1-and-api598-standards-for-y-type-strainers\/"},"wordCount":1326,"commentCount":0,"publisher":{"@id":"https:\/\/stvvalve.com\/#organization"},"keywords":["CF8M Y Type Strainer","China EN558-1 Y Type Strainer","DIN 3352 Y Type Strainer","DN50 CF8M Y Type Strainer","PN16 CF8M Y Type Strainer","RF Ends CF8M Y Type Strainer manufacturer"],"articleSection":["industry valve news","News"],"inLanguage":"es","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/stvvalve.com\/understanding-en558-1-and-api598-standards-for-y-type-strainers\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/stvvalve.com\/understanding-en558-1-and-api598-standards-for-y-type-strainers\/","url":"https:\/\/stvvalve.com\/understanding-en558-1-and-api598-standards-for-y-type-strainers\/","name":"Understanding EN558-1 and API598 Standards for Y Type Strainers - China Industry Valves Supplier & Manufacturer","isPartOf":{"@id":"https:\/\/stvvalve.com\/#website"},"datePublished":"2025-10-12T01:55:03+00:00","breadcrumb":{"@id":"https:\/\/stvvalve.com\/understanding-en558-1-and-api598-standards-for-y-type-strainers\/#breadcrumb"},"inLanguage":"es","potentialAction":[{"@type":"ReadAction","target":["https:\/\/stvvalve.com\/understanding-en558-1-and-api598-standards-for-y-type-strainers\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/stvvalve.com\/understanding-en558-1-and-api598-standards-for-y-type-strainers\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/stvvalve.com\/home\/"},{"@type":"ListItem","position":2,"name":"Understanding EN558-1 and API598 Standards for Y Type Strainers"}]},{"@type":"WebSite","@id":"https:\/\/stvvalve.com\/#website","url":"https:\/\/stvvalve.com\/","name":"China Industry Valves Supplier & Manufacturer","description":"Ball Valve,Gate Valve,Globe Valve,Check Valve, Y Strainer.We wholesale many kinds of ball valves such as stainless steel ball valve, forged steel gate valve, forged steel check valve.Contact us for more information.","publisher":{"@id":"https:\/\/stvvalve.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/stvvalve.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"es"},{"@type":"Organization","@id":"https:\/\/stvvalve.com\/#organization","name":"China Industry Valves Supplier & Manufacturer","url":"https:\/\/stvvalve.com\/","logo":{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/stvvalve.com\/#\/schema\/logo\/image\/","url":"https:\/\/stvvalve.com\/wp-content\/uploads\/2021\/08\/logo_STV.jpg","contentUrl":"https:\/\/stvvalve.com\/wp-content\/uploads\/2021\/08\/logo_STV.jpg","width":602,"height":187,"caption":"China Industry Valves Supplier & Manufacturer"},"image":{"@id":"https:\/\/stvvalve.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/JalenLee567\/","https:\/\/x.com\/RainLee18500645"]},{"@type":"Person","@id":"https:\/\/stvvalve.com\/#\/schema\/person\/34a3237d0f136ce0b0fd71258fb80dd6","name":"stvvalve","image":{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/secure.gravatar.com\/avatar\/755328fdf1d994875343337a29b6cd4727965089342e761325e371daed38acdc?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/755328fdf1d994875343337a29b6cd4727965089342e761325e371daed38acdc?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/755328fdf1d994875343337a29b6cd4727965089342e761325e371daed38acdc?s=96&d=mm&r=g","caption":"stvvalve"},"sameAs":["https:\/\/stvvalve.com"]}]}},"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/stvvalve.com\/es\/wp-json\/wp\/v2\/posts\/1292","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stvvalve.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/stvvalve.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/stvvalve.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/stvvalve.com\/es\/wp-json\/wp\/v2\/comments?post=1292"}],"version-history":[{"count":1,"href":"https:\/\/stvvalve.com\/es\/wp-json\/wp\/v2\/posts\/1292\/revisions"}],"predecessor-version":[{"id":1293,"href":"https:\/\/stvvalve.com\/es\/wp-json\/wp\/v2\/posts\/1292\/revisions\/1293"}],"wp:attachment":[{"href":"https:\/\/stvvalve.com\/es\/wp-json\/wp\/v2\/media?parent=1292"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stvvalve.com\/es\/wp-json\/wp\/v2\/categories?post=1292"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stvvalve.com\/es\/wp-json\/wp\/v2\/tags?post=1292"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}