PTFE, PFA, FEP, PVDF Fluoroplastic products industry experts
News
26-03
What are the performance differences between PFA tubing and FEP tubing, and how should one select between the two?
PFA tubing is an upgraded version of FEP, designed for high-temperature and high-purity applications, with a temperature resistance of up to 260°C and superior mechanical strength; FEP tubing, on the other hand, offers excellent cost-effectiveness, outstanding transparency, and easier processing, making it ideal for medium- and low-temperature corrosive environments.
26-03
PFA Bellows and PFA Straight Pipes
In high-purity applications such as semiconductors and photovoltaics, the smooth inner wall of PFA straight tubing ensures zero contamination; in industries like chemicals and automotive, bellows are an essential choice thanks to their flexibility and vibration-damping properties—key selection criteria: opt for straight tubing in cleanroom environments, and choose bellows for dynamic applications.
26-03
What are the common specifications and dimensions of electronic-grade PFA tubing, and what are its primary application areas?
Electronic-grade PFA tubing is the “golden artery” of semiconductor manufacturing, capable of conveying highly corrosive media such as hydrofluoric acid under extreme conditions ranging from −80°C to 260°C, with metal ion leaching below 0.1 ppb. Its mirror-polished inner wall (Ra ≤ 0.2 μm) and Class 1,000 cleanroom production environment ensure the ultra-high purity required for 5-nm chip fabrication, accelerating breakthroughs in domestic substitution.
26-03
What is a Teflon Venturi tube? Structure and operating principle of the Venturi tube
The Venturi tube is a critical device for measuring fluid pressure differentials and is widely used for large-diameter flow measurement in industries such as steelmaking and thermoelectric power generation. The PTFE Venturi tube, designed as an accessory for spray guns, undergoes precision CNC machining to ensure high accuracy and durability. Its unique structure, based on Bernoulli’s principle, enables efficient separation of gas components, providing reliable data support for applications in aerospace, chemical processing, and other fields.
26-03
What factors influence the coefficient of thermal expansion of PFA tubing? What are the key considerations for applying the coefficient of thermal expansion of PFA tubing?
PFA tubing is manufactured from PFA resin. The coefficient of thermal expansion of PFA (melt-processable polytetrafluoroethylene) tubing is one of the key performance parameters that underpin its use as a high-temperature, high-precision engineering material, directly influencing the dimensional stability and operational reliability of piping systems under temperature fluctuations.
26-03
What factors influence the coefficient of thermal expansion of PFA tubing? What are the key considerations for applying the coefficient of thermal expansion of PFA tubing?
The coefficient of thermal expansion of PFA tubing is 7 to 10 times that of metals; a 1-meter length of pipe will expand by 10.4 mm when the temperature rises by 80°C. When selecting PFA tubing, it is essential to consider the material grade, operating temperature range, and installation compensation. Semiconductor-grade modified PFA can significantly reduce thermal expansion—DanKai Fluoroplastics experts advise that, under high-temperature service conditions, sufficient expansion allowance must be provided to prevent rigid connections.
Dankai Technology
Address: Area B, 4th Floor, Building 1, North Yongfa Science and Technology Park, Yanchuan North, Chaoyang Road, Songgang Town, Bao'an District, Shenzhen, China
Tel: +86-755-29979617 23127719 23127819
E-mail: dkt@szdankai.com
Focus on us
Copyright©2024 All rights reserved of Shenzhen Dankai Technology Co., Ltd.
