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PFA 细螺纹扩口接头

Swagelok® PFA Fine Thread Flare Fittings

Swagelok PFA fine thread flare fittings are designed to provide reliable performance in challenging applications that involve reactive and corrosive chemicals, such as semiconductor manufacturing.

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Swagelok offers a wide variety of PFA fine thread flare fitting shapes and sizes, including straight, elbow, and tee configurations for use with 1/4 to 1 in. tubing. Our PFA fittings offer the tensile strength, resistance to permeation, thermal stability, flow, and creep resistance needed for safe, efficient operation in high-purity applications and aggressive chemical environments. As a result, they are often considered to be a strong choice for use in semiconductor production.

These PFA fittings are a part of a family of Swagelok ultrahigh-purity (UHP) fluoropolymer products that also include pneumatically actuated and quarter-turn manual radial diaphragm-sealed shutoff valves, O-ring-free check valves, and tubing.


Pressure RatingsUp to 275 psig (18.9 bar)
Temperature Ratings 70 to 400°F (20 to 204°C)
Material Molded PFA/ASTM D3307 Type I
End Connection
Sizes 1/8 to 1/2 in.
Configurations Straights, elbows, tees, ferrules, caps, plugs, nuts

PFA Fine Thread Flare Fittings Catalogs

Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.


An Introduction to Fittings: Identifying Thread Size and Pitch

Even the most seasoned professionals can experience difficulty identifying threads. Swagelok product manager Andy Hitchcock explains how to identify thread size and pitch on your fittings using a caliper, pitch gauge and thread identification guide.

Read About Fitting Selection

Swagelok Resources Curated for You

稀释制冷机制造商 Bluefors 信赖世伟洛克提供的流体系统组件和解决方案。
Reliable Fluid System Solutions for the Scientific Frontier

Learn why Finnish dilution refrigerator manufacturer Bluefors trusts Swagelok for fluid system components and solutions that help enable quantum computing, experimental physics, and more.

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Building More Profitable Semiconductor Fabs

Learn why choosing high-quality fluid system parts and assemblies can contribute to faster semiconductor fabrication facility construction, and lower total cost of ownership over the facility’s lifetime.

Improve Semiconductor Yield with Optimized Alloys

Discover how semiconductor fabricators can improve end-to-end production yields and improve long-term profitability by selecting the right metals for critical fluid system components.

卡尔怀特曾经在半导体行业供应链的各个环节工作了近 40 年,他提出了有关半导体行业发展的过去、现在和未来的切身见解。
Q&A: Semiconductor Manufacturing Past, Present, and Future

Find out how collaboration between semiconductor tool OEMs, microchip manufacturers, and fluid system solutions providers has enabled the semiconductor market to keep up with the demands of Moore’s Law for decades, and where we go from here.