Swagelok® Medium-Pressure Tube Fittings (FK Series)
Swagelok FK series medium-pressure fittings have improved fluid connections in tough applications like oil and gas exploration, R&D systems, and the hydrogen market. They offer reliable, leak-tight connections for advanced systems in fluid handling and gas sealing applications.
View All Medium Pressure Tube FittingsSwagelok® FK series medium-pressure fittings install up to five times faster than cone and thread fittings, reducing installation time, assembly, and maintenance costs. The fittings are vibration-resistant and offer a leak-tight gas seal for applications up to 20 000 psig (1378 bar). Ideal for use in challenging environments where secure, high-pressure connections are critical.
These medium pressure fittings are reliable and efficient, offering robust performance in severe applications while protecting workers and the environment. They meet EC-79 standards for hydrogen applications up to 700 bar (10 150 psig) and feature a preassembled cartridge for easy, accurate installation. The simple two-piece design, with color-coded ferrules, ensures proper orientation and installation using standard tools. The strain-hardened 316 stainless steel body provides a lightweight, space-saving solution. FK series fittings are also available in NACE MR0175/ISO 15156 compliant versions.
Medium-Pressure Tube Fitting Categories
Bulkheads
Make reliable fluid transfers with a bulkhead designed specifically for passing a tubing connection through a panel or steel partition.
Caps and Plugs
Pressurize the fluid system by capping medium-pressure connections or plugging ports.
Female Connectors
Create a secure connection with female connectors for tube fittings, designed to receive and hold male connectors.
Male Connectors
Construct a leak-free connection in process instrumentation and industrial applications with a male connector for medium-pressure tube fittings.
Spare Parts and Accessories
Nut and ferrule sets and medium-pressure gap inspection gauges for tube fittings.
Unions
Combine tubing easily with an elbow, tee, or straight union, available in 316 stainless steel for medium-pressure tube fittings.
Medium-Pressure Tube Fittings Catalogs
The strain-hardened 316 stainless steel FK fitting bodies are available in straight, elbow, and tee shapes to meet your configuration needs in a lightweight, space-saving design. Find detailed product information, including materials of construction, pressure and temperature ratings, options, accessories, and installation instructions in the product literature provided here.
FK and IPT Series Products Cone and thread or medium-pressure tube fitting connections Excellent corrosion resistance in chloride-containing environmentsManufactured to meet NORSOK and NACE® MR0175/ISO15156
Swagelok® offers medium- and high-pressure fittings, tubing, valves, and related accessories with temperatures up 1000°F (537°C), pressure ratings up to 60 000 psig (4134 bar) in sizes ranging from 1/4 to to 1 in. for medium-pressure products and 1/4 to 9/16 in. for high-pressure products. NACE® MR0175/ISO15156 compliance is available.
Tube Fittings Comparison (FK Series)
Watch and compare installation of FK series and cone and thread fittings.
Compare the FittingsSwagelok Resources Curated for You
agi industries
了解世伟洛克如何通过 FK 系列阀门和接头帮助 AGI Industries 在 15 000 psi 的压力下实现 13 500 个潜在泄漏点的无泄漏密封性能。
优化氢燃料电池汽车的部件选型
氢能交通依赖于可靠的部件规范和选型。
案例分析：海上石油运营商
了解世伟洛克如何通过将现有锥面及螺纹连接更换为世伟洛克 FK 系列接头来帮助海上石油运营商减少安装工时并提高整体性能。
Empa 与世伟洛克的合作研究促进了氢能交通的创新发展
瑞士联邦材料科学与技术实验室 (Empa) 与世伟洛克正在探索基于氢的运输解决方案的可行性。在我们的合作中，近期的一项研究突破是在Empa 的氢解决方案中选用世伟洛克FK系列卡套接头使用 FK 系列接头而不是传统的世伟洛克卡套管接头大大简化了安装，同时提高了密封性、可靠性和安全性。
FK 系列中压卡套管接头
从初始构建和调试到日常运营和维护，对于降低总生命周期成本都是非常重要的。FK 系列卡套管接头可以降低维护成本，并提供高可靠性，在遵循正确的装配工艺的情况下，减少系统停机时间。这些接头还可以通过减少泄漏来帮助减轻对环境的影响，并通过保护您的系统免受腐蚀来提高整体安全性。