PTFE Diaphragm

Key Features

Ultimate Chemical Resistance
High Temperature Tolerance
Exceptional Purity
Extreme Steam Resistance
Versatile Size Availability
Self-Lubricating Properties
FDA Approved Material

At Exactseal, we specialize in the manufacturing of high-quality Polytetrafluoroethylene (PTFE) Diaphragms. Our PTFE diaphragm is designed to meet the rigorous demands of various industrial applications, offering the ultimate in chemical resistance and purity.

PTFE, also known as Teflon, is renowned for its exceptional chemical resistance. This makes our PTFE diaphragms ideal for use in sanitary applications and those involving strong chemicals, abrasives, and higher temperatures or pressures.

Our PTFE diaphragms can work by themselves or with a rubber backing for added strength. This versatility allows us to cater to a wide range of pump types, ensuring optimal performance and longevity.

At Exactseal, we understand that not all PTFE diaphragms are the same. That’s why we offer customized sizes, catering to the unique needs of our clients. Our diaphragms are available in thicknesses ranging from 2mm to 7mm, providing a variety of options to suit different operational requirements.

We are committed to quality and traceability. All our diaphragms are laser-etched with cure dates and batch numbers, ensuring complete traceability. This commitment to quality control sets us apart in the industry and provides our clients with the assurance they need when choosing Exactseal as their PTFE diaphragm supplier.

Our PTFE diaphragms are extremely steam resistant, making them an excellent choice for applications requiring critical temperature control. They are also available in a variety of sizes, including 0.5″, 1.0″, 1.5″, 2.0″, and 3.0″, further enhancing their versatility.

In addition to our standard offerings, we also provide PTFE/EPDM diaphragms. These diaphragms consist of an elastomer backing (EPDM) and a thermoplastic face made of chemically modified second-generation PTFE (TFM), offering maximum chemical resistance.

At Exactseal, we are more than just a manufacturer. We are a partner to our clients, providing high-quality products, exceptional service, and tailored solutions. Contact us today to learn more about our PTFE diaphragm and how we can meet your specific needs.


ApplicationIndustrial applications
Product NamePTFE Diaphragm
Hardness (Shore A)-
MaterialPolytetrafluoroethylene (PTFE)


Paints and Coatings Industry
Mining Operations
Ceramics Manufacturing
Pickling Baths
Electroplating Processes
Non-Critical Fixed Interval Applications

Technical Information

MaterialPolytetrafluoroethylene (PTFE)
Design Temperature-80 to 200 °C (-112 to 392 °F)
Design Pressure-1 to 10 bar (-14.5 to 145 psi)
  • Fabric Reinforced Diaphragms

    Fabric Reinforced Diaphragm

  • Rolling Diaphragms

    Rolling Diaphragm

  • pump and valve seals

    Pump and Valve Diaphragm