O-ring PTFE-Teflon®

Product		Colour	Material	Hardness	Certification	Stock	From price
	O-ring 198 mm x 3.5 mm	White	PTFE - Teflon		FDA Compliant	10	€ 57,42	Details	shopping_cart
	O-ring 196 mm x 4 mm	White	PTFE - Teflon		FDA Compliant	7	€ 62,11	Details	shopping_cart
	O-ring 195 mm x 5 mm	White	PTFE - Teflon		FDA Compliant	1	€ 64,24	Details	shopping_cart
	O-ring 195 mm x 4 mm	White	PTFE - Teflon		FDA Compliant	6	€ 61,55	Details	shopping_cart
	O-ring 194.5 mm x 3 mm	White	PTFE - Teflon		FDA Compliant	24	€ 49,67	Details	shopping_cart
	O-ring 194.3 mm x 5.7 mm	White	PTFE - Teflon		FDA Compliant	1	€ 74,83	Details	shopping_cart
	O-ring 194 mm x 3 mm	White	PTFE - Teflon		FDA Compliant	4	€ 49,66	Details	shopping_cart
	O-ring 193 mm x 6 mm	White	PTFE - Teflon		FDA Compliant	4	€ 74,32	Details	shopping_cart
	O-ring 192 mm x 6 mm	White	PTFE - Teflon		FDA Compliant	9	€ 72,97	Details	shopping_cart
	O-ring 192 mm x 5 mm	White	PTFE - Teflon		FDA Compliant	11	€ 61,28	Details	shopping_cart
	O-ring 192 mm x 4 mm	White	PTFE - Teflon		FDA Compliant	13	€ 59,34	Details	shopping_cart
	O-ring 192 mm x 3 mm	White	PTFE - Teflon		FDA Compliant	11	€ 48,52	Details	shopping_cart
	O-ring 191 mm x 6 mm	White	PTFE - Teflon		FDA Compliant	9	€ 71,62	Details	shopping_cart
	O-ring 190 mm x 6 mm	White	PTFE - Teflon		FDA Compliant	5	€ 68,78	Details	shopping_cart
	O-ring 190 mm x 4 mm	White	PTFE - Teflon		FDA Compliant	4	€ 58,82	Details	shopping_cart
	O-ring 190 mm x 3 mm	White	PTFE - Teflon		FDA Compliant	0	€ 47,37	Details	Quote
	O-ring 189.5 mm x 3 mm	White	PTFE - Teflon		FDA Compliant	8	€ 46,80	Details	shopping_cart
	O-ring 189.2 mm x 5.7 mm	White	PTFE - Teflon		FDA Compliant	0	€ 68,78	Details	Quote
	O-ring 188 mm x 4 mm	White	PTFE - Teflon		FDA Compliant	11	€ 57,56	Details	shopping_cart
	O-ring 187 mm x 4 mm	White	PTFE - Teflon		FDA Compliant	11	€ 56,31	Details	shopping_cart
	O-ring 186 mm x 3 mm	White	PTFE - Teflon		FDA Compliant	12	€ 45,87	Details	shopping_cart
	O-ring 185 mm x 6 mm	White	PTFE - Teflon		FDA Compliant	0	€ 86,83	Details	Quote
	O-ring 185 mm x 5 mm	White	PTFE - Teflon		FDA Compliant	40	€ 56,45	Details	shopping_cart
	O-ring 185 mm x 4 mm	White	PTFE - Teflon		FDA Compliant	7	€ 54,63	Details	shopping_cart
	O-ring 185 mm x 3.5 mm	White	PTFE - Teflon		FDA Compliant	2	€ 50,10	Details	shopping_cart
	O-ring 185 mm x 3 mm	White	PTFE - Teflon		FDA Compliant	0	€ 59,42	Details	Quote
	O-ring 185 mm x 2.5 mm	White	PTFE - Teflon		FDA Compliant	14	€ 37,95	Details	shopping_cart
	O-ring 184.5 mm x 3 mm	White	PTFE - Teflon		FDA Compliant	15	€ 45,58	Details	shopping_cart
	O-ring 184.2 mm x 5.7 mm	White	PTFE - Teflon		FDA Compliant	9	€ 65,37	Details	shopping_cart
	O-ring 184 mm x 7 mm	White	PTFE - Teflon		FDA Compliant	8	€ 89,11	Details	shopping_cart

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What is an O-ring PTFE-Teflon?

An O-ring PTFE-Teflon is a sealing ring made from PTFE (polytetrafluoroethylene), a fluoropolymer known for its excellent chemical resistance and low friction coefficient. PTFE is inert to most chemicals and can withstand extreme temperatures ranging from -200°C to 260°C.

An PTFE O-ring exhibits low friction, allowing for easy movement and minimal wear. It resists oil, water, acids, bases, and many solvents. PTFE O-rings are commonly used in applications requiring high chemical resistance, such as in the chemical processing industry, pharmaceutical industry, food industry, and laboratory equipment. The unique properties of PTFE material make it a versatile choice for seals operating under extreme conditions and with aggressive media.

Teflon®: A PTFE brand

Teflon, a PTFE brand, is renowned for its exceptional chemical resistance and non-stick properties. Developed by DuPont, Teflon O-rings are a type of polytetrafluoroethylene (PTFE), a synthetic fluoropolymer known for its low friction and high-temperature tolerance. an O-ring PTFE-Teflon can withstand temperatures ranging from -200°C to +260°C, making it suitable for various industrial applications.

Teflon's inertness ensures it doesn't react with most chemicals, providing reliable performance in harsh environments. It's commonly used in the production of non-stick cookware, electrical insulation, gaskets, seals, and bearings.

Despite its many advantages, an O-ring PTFE-Teflon has limitations, including limited elasticity and potential creep under prolonged stress. Nonetheless, its unique properties make it an invaluable material in industries requiring durable, non-reactive, and heat-resistant solutions.

Properties of PTFE O-rings

An O-ring PTFE-Teflon possesses unique properties that make it suitable for demanding sealing applications. Firstly, it offers excellent chemical resistance against a wide range of chemicals, including acids, bases, solvents, and oils. PTFE O-rings are inert and do not react with most substances, making them ideal for chemical processing and laboratory environments.

Additionally, an O-ring PTFE-Teflon has very low friction, allowing for easy movement and minimal wear. It withstands extreme temperatures ranging from -200°C to 260°C without losing its mechanical properties. An O-ring made of PTFE is also non-porous, making it easy to clean and sterilize, thus suitable for use in the food and pharmaceutical industries. In summary, an Teflon O-ring provides durable, reliable sealing in demanding environments with chemical and thermal challenges.

Applications of an PTFE O-ring

An O-ring PTFE-Teflon finds numerous applications in industries where reliable sealing against chemical and thermal influences is essential. It is commonly used in chemical processing plants to seal pumps, valves, and pipes against aggressive chemicals and solvents. In the pharmaceutical and medical industries, PTFE O-rings are used due to its inertness and biocompatibility.

Furthermore, an O-ring PTFE-Teflon is suitable for food processing equipment, where it withstands temperatures and cleaning agents. In aerospace, it is used for sealing applications under extreme temperatures and vacuum conditions.

Looking for PTFE-Teflon O-rings for your specific application? Contact us today for more information and a custom quote.

The Disadvantages of a PTFE O-ring

Disadvantages of a O-ring PTFE-Teflon include its limited elasticity and high hardness, which can lead to poor sealing performance in low-pressure applications. PTFE, or polytetrafluoroethylene, lacks the flexibility of rubber O-rings, making it less effective in dynamic applications where frequent movement or vibration occurs.

Additionally, PTFE O-rings have a higher tendency to creep and deform under constant pressure, which can lead to seal failure over time. They also require more precise machining and installation due to their rigidity and brittleness, increasing the complexity and cost of use.

Despite their excellent chemical resistance and wide temperature range, these disadvantages make PTFE O-rings less suitable for certain applications. They are typically not recommended for use in situations where a soft, conforming seal is required. An FFKM O-ring can offer a high chemical resistance, combined with a wide temperature range and elasticity. 

Specifications of a Polytetrafluoroethylene (PTFE) O-ring

The O-ring PTFE-Teflon, with material number 169917301, has specific properties measured according to modern laboratory standards. The density is 2.16 g/cm³. The tensile strength is 28 MPa, and the elongation at break is 300%. The compressive strength at 1% deformation is 4.5 MPa, and the hardness is 59 Shore D.

The dynamic friction coefficient is 0.05, and the static friction coefficient is 0.09. The elasticity modulus is 280 MPa. The thermal expansion coefficient between 25 and 100°C is 16x10^-5 °C^-1. The dielectric strength (short-term test) is 35 kV/mm. This material is FDA compliant according to 21 CFR FDA § 177.1550, with SGS test report 3977262.

These data for an O-ring PTFE-Teflon are based on standard test samples and may vary in finished products.

Custom O-ring PTFE-Teflon

For an O-ring PTFE - Teflon, a range of customization options and specifications are available to meet specific sealing needs. These options include various sizes and shapes suitable for diverse sealing applications, including standard AS568 sizes or custom sizes per drawing or specification.

Whether you need a standard size or a unique dimension for a specific project, we can meet your requirements. Feel free to contact us for more information on customization options and specifications for an O-ring PTFE-Teflon. Our dedicated team is ready to advise and assist you in finding the perfect sealing solution for your specific application.