法兰拉断阀
商品详情
性能特点
技术参数



法兰拉断阀
法兰拉断阀(Breakaway Coupling)是一种用于化工、石油、天然气等行业的安全紧急脱离装置,安装在装卸软管或管道系统中。当槽车意外移动或管道受到异常拉力时,阀门自动断开并密封两端,防止介质泄漏,保障人员和环境安全。
法兰拉断阀核心功能
✅ 紧急脱离 – 在超限拉力下自动断开,避免管道拉裂。
✅ 双重密封 – 断开后两端立即关闭,确保零泄漏。
✅ 可重复使用 – 更换拉断螺栓即可恢复,无需整体更换。
✅ 适应性强 – 适用于液化气体(LNG/LPG)、化学品、石油产品等。
法兰拉断阀技术参数
项目参数范围公称通径 (DN)DN25 ~ DN150公称压力 (PN)0.6MPa ~ 42MPa工作温度-196°C ~ +150°C拉断力750kgf ~ 3500kgf
法兰拉断阀适用行业
石油化工(LNG、LPG、液氨等装卸)
化学工业(环氧乙烷、甲醇、酸碱介质)
能源行业(汽油、柴油、航空燃油)
低温工程(液氧、液氮、液态二氧化碳)
法兰拉断阀结构特点
阀体材质:304/316L不锈钢(耐腐蚀、耐低温)
密封材料:PTFE(聚四氟乙烯)或金属密封
连接方式:法兰式(ANSI/DIN标准)或螺纹式
安全认证:符合API、ISO等标准
法兰拉断阀Flange Breakaway Coupling紧急脱离Emergency Release公称通径Nominal Diameter (DN)公称压力Pressure Rating (PN)拉断力Breakaway Force零泄漏Zero Leakage不锈钢Stainless Steel (304/316L)聚四氟乙烯PTFE (Teflon)法兰连接Flanged Connection螺纹连接Threaded Connection
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Flange Breakaway Coupling Product Overview
A Flange Breakaway Coupling (also called Emergency Release Coupling) is a safety device used in chemical, petroleum, natural gas industries. Installed in loading/unloading hoses pipelines, it automatically disconnects under excessive force (e.g., tanker movement) seals both sides to prevent hazardous leaks.
Key Features
✅ Emergency Disconnection – Releases at a preset force to avoid pipe rupture.
✅ Double Sealing – Instantly closes both ends after separation (zero leakage).
✅ Reusable – Only breakaway bolts need replacement after activation.
✅ Wide Compatibility – Suitable for LNG, LPG, chemicals, petroleum products, etc.
Technical Specifications
ParameterRangeNominal Diameter (DN)DN25 ~ DN150Pressure Rating (PN)0.6MPa ~ 42MPaOperating Temperature-196°C ~ +150°CBreakaway Force750kgf ~ 3500kgf
Applications
Petrochemicals (LNG/LPG, ammonia transfer)
Chemical Industry (ethylene oxide, methanol, acids)
Energy Sector (gasoline, diesel, jet fuel)
Cryogenic Engineering (liquid oxygen, nitrogen, CO₂)
Design Features
Body Material: 304/316L stainless steel (corrosion & cryogenic resistance)
Seals: PTFE (Teflon) metal-to-metal sealing
Connection Types: Flanged (ANSI/DIN) threaded
Certifications: Complies with API, ISO, other international standards
