{"id":897,"date":"2023-07-24T09:42:20","date_gmt":"2023-07-24T01:42:20","guid":{"rendered":"https:\/\/boss.xgtu.cn\/product\/encapsulated-spring-o-ring\/"},"modified":"2025-05-21T09:23:30","modified_gmt":"2025-05-21T01:23:30","slug":"encapsulated-spring-o-ring","status":"publish","type":"product","link":"https:\/\/www.bosssealing.com\/zh\/product\/%e5%b0%81%e8%a3%9d%e5%bd%88%e7%b0%a7-o-%e5%bd%a2%e5%9c%88\/","title":{"rendered":"FE-OSS Encapsulated Spring O-Ring"},"content":{"rendered":"
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Product Name: FEP-Encapsulated Stainless Steel Spring Composite Seal
\nProduct Positioning: High-performance corrosion-resistant sealing solution
\nCore Features: Combines fluorinated ethylene propylene (FEP) encapsulation with a stainless steel spring, merging chemical resistance with high elasticity. Designed for extreme operating conditions, including high temperature, high pressure, and aggressive chemical environments, ensuring long-term reliable sealing.<\/p>\n<\/div>\n

Detailed Product Description<\/h4>\n

1.Material & Structural Design<\/p>\n

Outer Layer (FEP):<\/p>\n

Chemical Resistance: Resists strong acids (e.g., sulfuric acid, hydrochloric acid), alkalis, organic solvents, and oxidizers, with minimal reactivity to most chemicals.<\/p>\n

Temperature Resistance: Operates continuously from -200\u00b0C to +200\u00b0C, with short-term peak tolerance up to +260\u00b0C.<\/p>\n

Surface Properties: Ultra-low friction coefficient (0.15\u20130.20), anti-adhesive, easy to clean, and compliant with FDA standards for food and pharmaceutical applications.<\/p>\n

Inner Structure (Stainless Steel Spring):<\/p>\n

Material: 316L stainless steel (304 optional), offering chloride ion resistance and excellent fatigue strength.<\/p>\n

Function: Delivers consistent elastic force compensation, adapting to dynamic\/static sealing applications while ensuring tight sealing surface contact.<\/p>\n

Encapsulation Process: Precision molding or extrusion ensures seamless bonding between the FEP layer and spring, with uniform thickness (\u00b10.1 mm) and no defects such as bubbles or delamination.<\/p>\n

2. Key Advantages<\/p>\n

Dual Performance Integration: Combines FEP\u2019s chemical inertness with the spring\u2019s resilience, addressing aging or deformation issues common in single-material seals.<\/p>\n

Extended Service Life: Exceptional anti-creep properties maintain sealing stability under cyclic pressure, offering 3\u20135x longer lifespan than standard rubber seals.<\/p>\n

Customization Flexibility: Supports tailored dimensions (3\u2013300 mm diameter), encapsulation hardness (Shore D50\u201365), and spring preload to meet non-standard equipment requirements.<\/p>\n

3. Typical Applications<\/p>\n

Chemical Industry: Reactor agitator shaft seals, acid\/alkali valve stem seals, pipeline flange seals.<\/p>\n

Semiconductor Manufacturing: Seals for high-purity chemical delivery pumps and CMP equipment, preventing metal ion contamination.<\/p>\n

Food & Pharmaceuticals: Aseptic filling systems, fermentation tank seals, compliant with GMP cleanliness standards.<\/p>\n

Energy & Environmental: Flue gas desulfurization systems, high-temperature steam valve seals, resistant to sulfide corrosion.<\/p>\n

4. Technical Specifications
\nParameter Range\/Properties
\nOperating Temperature -200\u00b0C to +200\u00b0C
\nMax. Working Pressure Static: 40 MPa, Dynamic: 25 MPa
\nCompatible Media pH 0\u201314, organic solvents, gases
\nStandard Dimensions ID: 5\u2013250 mm, Cross-section: 3\u201320 mm
\nCertifications FDA 21 CFR 177.1550, RoHS
\n5. Selection & Customization<\/p>\n

Standard Models: ASTM\/DIN-compliant size libraries for quick selection.<\/p>\n

Custom Options:<\/p>\n

Enhanced compatibility with specific media (e.g., hydrofluoric acid, concentrated nitric acid).<\/p>\n

Dual-layer encapsulation (FEP+PFA) for improved wear resistance.<\/p>\n

Spring preload optimization for high-frequency vibration scenarios.<\/p>\n

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\u65b9\u9762\uff1a<\/strong><\/p>\n

AS568\u7cfb\u5217<\/p>\n

JIS B2401 series<\/p>\n

BS 4518 series<\/p>\n

Non-standard sizes available.<\/p>\n

For more information,please contact us<\/a>.<\/p>\n

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The FEP-encapsulated stainless steel spring seal delivers a high-reliability solution for extreme chemical and operational challenges through innovative material synergy and precision engineering. Its corrosion resistance, temperature tolerance, and extended service life significantly reduce downtime and maintenance costs, making it an optimal choice for industries such as chemicals, pharmaceuticals, and energy. Full-cycle technical support and customization ensure precise alignment with client needs.<\/p>","protected":false},"featured_media":903,"template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"product_brand":[],"product_cat":[32],"product_tag":[],"class_list":["post-897","product","type-product","status-publish","has-post-thumbnail","product_cat-encapsulated-seals","first","instock","shipping-taxable","product-type-external"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t