Description

Technical Parameters

1/4 PFA Tubing typically refers to PFA (Perfluoroalkoxy) polymer tubing with a 6.35mm Outside Diameter (OD), often paired with an inner diameter (ID) like 4.35mm (e.g., 4.35*6.35mm), used in high-purity, chemical, and high-temp applications due to its inertness, flexibility, and wide temp range (-200°C to 260°C). It's common in labs, semiconductors, and food/beverage, meeting standards like FDA , offering superior chemical resistance over PTFE/FEP.

Features

Material: PFA (a type of fluoropolymer).

Common Sizes: Often seen as 4.35mm ID x 6.35mm OD, but other fractional/metric sizes exist.

Temperature: Excellent range, typically -200°C to 260°C (-328°F to 500°F).

Chemical Resistance: Highly inert, resistant to corrosive chemicals, solvents, and steam.

Purity: Available in high-purity grades for sensitive applications (semiconductor, pharma).

Properties: Transparent (natural color), flexible, low friction, low extractables.

Approvals: Often FDA compliant, REACH, RoHS.

Advantages of 1/4" PFA Tubing

Exceptional Chemical Resistance

PFA is resistant to almost all solvents, acids, and bases, making it highly reliable for corrosive chemical handling.

High-Temperature Performance

It maintains mechanical integrity and stability in extreme heat (up to 500°F/260°C).

Superior Purity

PFA is known for having low extractable levels, ensuring it does not contaminate high-purity fluids.

Flexibility and Clarity

Compared to PTFE, PFA tubing is more flexible and transparent, allowing for easy flow monitoring.

Smooth Surface

The inner surface is smooth, preventing particle entrapment and facilitating easy cleaning.

Reduced Stress Cracking

PFA possesses greater resistance to stress cracking, improving longevity in high-demand environments.

PFA, PTFE, and FEP are high-performance fluoropolymers sharing superior chemical resistance, low friction, and high temperature tolerance. PTFE offers the highest heat/chemical resistance but requires sintering; FEP is melt-processable, transparent, and flexible but lower-temp; PFA merges the best of both, providing superior chemical/thermal resistance, high purity, and superior flexibility over FEP.

Key Differences

PTFE (Polytetrafluoroethylene)

Best for high-temperature (up to 260°)non-stick, and high chemical resistance. It is not melt-processable, requiring sintering, and is typically white/opaque.

FEP (Fluorinated Ethylene Propylene)

Melt-processable, allowing for complex shapes and welding. Transparent, UV resistant, and good for lower-temp (<200°C)applications, electrical insulation, and heat-shrink.

PFA (Perfluoroalkoxy)

Melt-processable with similar temperature resistance to PTFE (260°+),but superior stress-crack resistance and clarity compared to FEP. High-purity makes it ideal for semiconductor and medical applications.

Selection Summary

Choose PTFE for maximum, cost-effective high-temp/chemical resistance where molding isn't needed.
Choose FEP for transparency, lower-temperature flexibility, or complex, budget-friendly extrusions.
Choose PFA for superior, high-purity, and durable performance in extreme, high-temp environments.

Applications

1/4" PFA tubing is widely used in chemical processing, semiconductor manufacturing, laboratory equipment, analytical instruments, pharmaceutical systems, and high-purity fluid transfer.

Key Features:

High-quality PFA fluoropolymer material
Excellent resistance to aggressive chemicals and solvents
Excellent high-temperature performance
Smooth, non-stick inner surface
High purity and low extractables
Excellent electrical insulation properties
Available in various wall thicknesses and lengths
Suitable for demanding fluid-handling applications
Custom sizes and specifications available

Typical Applications: Chemical transfer, semiconductor equipment, laboratory instruments, pharmaceutical processing, analytical systems, and high-purity fluid handling.

Semiconductor Manufacturing

Ideal for high-purity fluid handling, chemical delivery (acids/solvents), wet benches, and CMP (chemical mechanical planarization).

Chemical Processing

Used in harsh, corrosive, or reactive environments to transfer chemicals without contamination due to excellent chemical resistance.

Pharmaceutical and Biomedical

Excellent for use in drug manufacturing and biotech applications due to its inert and biocompatible nature.

Laboratory and Analytical

Utilized for sample analysis, chromatography, and high-purity fluid transfer where non-stick, non-leaching characteristics are critical.

Industrial and Automotive

Used for adhesive transfer, paint lines, and fuel systems requiring high temperature resistance and flexibility.

Environmental Monitoring

Commonly used in water quality testing and sampling equipment.

Payment&Shipping

Packing	Carton / Pallet / Wooden Box
Shipping method	By express, By air, By Sea
FOB Port	Shenzhen
Production time	Depends on your qty(3~15 days)
OEM/ODM	Available
Payment	TT/Ali pay/Ali Assurance

FAQ

Q1: What wall thicknesses are available for 1/4" PFA tubing?

We can supply 1/4" OD PFA tubing in different wall thicknesses, including 0.031", 0.047", 0.062" and other customized dimensions, depending on the application.

The wall thickness affects the tubing's inside diameter, working pressure, flexibility, bend radius and temperature/pressure performance.

For example, Swagelok lists 1/4" PFA tubing in 0.047" and 0.062" wall configurations for its fitting systems, with different pressure ratings.

Q2: What is the maximum working pressure of 1/4" PFA tubing?

The maximum working pressure depends on the wall thickness, operating temperature, tubing design and manufacturer specification.

For example, Parker's 1/4" OD PFA tubing with a 0.031" wall is listed at approximately 230 psi (16 bar) working pressure at 73°F (23°C).

As temperature increases, the allowable working pressure generally decreases.

Therefore, please provide your required working pressure and operating temperature so we can recommend the appropriate wall thickness.

Q3: What is the temperature range of 1/4" PFA tubing?

PFA has excellent high-temperature performance and is widely used for aggressive chemical and high-purity fluid applications.

The actual allowable operating temperature depends on the PFA grade, tubing wall thickness, pressure and application conditions.

Q4: Is 1/4" PFA tubing resistant to chemicals?

Yes. Chemical resistance is one of the main advantages of PFA tubing.

PFA tubing is widely used for transporting aggressive chemicals, acids, bases, solvents and other corrosive fluids because of its excellent chemical stability. It is particularly common in chemical processing, semiconductor, laboratory and high-purity fluid handling applications.

Q5: Is your 1/4" PFA tubing high purity / suitable for semiconductor applications?

Yes, high-purity PFA tubing is available for semiconductor, electronics, laboratory and other applications where low contamination and chemical resistance are critical.

High-purity PFA tubing is used in semiconductor fluid-handling systems because of its combination of chemical resistance and high purity. Saint-Gobain, for example, specifically markets high-purity PFA tubing for semiconductor and other demanding applications

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PFA Tube Inch Sizes

ID	OD	Wall
(IN.)	(IN.)	(IN.)
1/32	1/16	.015
1/16	1/8	.030
1/16	3/16	.063
3/32	5/32	.030
1/8	3/16	.030
1/8	1/4	.063
3/16	1/4	.030
1/4	3/8	.063
5/16	3/8	.030
3/8	1/2	.063
1/2	9/16	.030
1/2	5/8	.063
5/8	3/4	.063
3/4	7/8	.063
7/8	1"	.063
1"	1.1"	.050
1"	1 1/8	.063
1 1/4	1 3/8	.063
1 1/2	1 5/8	.063