37-ecat E-Catalog
80-services Services
39-magazine Magazine
36-downloads Downloads
35-contact Contact
20-close First-Hand News?

Obtain news and background information about sealing technology, get in touch with innovative products – subscribe to the free e-mail newsletter.

Butterfly Valve Seals

Butterfly Valve Seals

Butterfly Valve Seals

Hygienic and Functionality Secure even after Countless Switching Operations

Butterfly valve seals from Freudenberg Sealing Technologies guarantee a reliable and long-lasting sealing function in butterfly or disk valves.

Flap Seals in various sizes and colors from Freudenberg Sealing Technologies on a white background

The butterfly valve seal is an essential component for blocking all three potential leakage paths: the sealing of pipes, flanges and operating shafts, in shut-off valves, butterfly valves and disk valves. In their materials and design, they must be configured optimally for the respective application.

Sealing solutions from Freudenberg Sealing Technologies offer a precisely calibrated material quality and torque-reducing geometries. On one hand, they allow the flap to close with a low expenditure of force. On the other hand, they nonetheless feature a high pressing action for excellent sealing.

Butterfly valve seals are primarily used in the beverage industry, dairy operations and the pharmaceutical industry. In the beverage industry, butterfly valve seals are mainly made of EPDM, which withstands aqueous media, CIP/SIP processes and acids. In addition to EPDM versions, dairy operations employ FKM, VMQ and HNBR butterfly valve seals, since the high fat content of the process media must be taken into consideration. In pharmaceutical processing, depending on the medium, Fluoroprene® XP comes into use as another material option since it is resistant to the sector’s sometimes aggressive flavors.

Free of both dead space and the penetration of contamination, the designs make possible hygienic applications for the food and beverage industry.

Development of Customer-Specific Butterfly Valve Seals:

  • Fitting the metrically measurements from DN 15 to DN 250
  • Fitting the imperially measurements from 1” to 6”


  • Standard form, version with lip and high version
Big city with skyscrapers

Join Us!

Experience Freudenberg Sealing Technologies, its products and service offerings in text and videos, network with colleagues and stakeholders, and make valuable business contacts.

Connect on LinkedIn! 70-external-link

Login with your access data

* mandatory field

Forgot your password? Click here to reset.


Don’t have an account yet? Register now!

You've logged in successfully.

Register and get access to exclusive content

Your benefits

  • Download exclusive documents such as Solution Sheets
  • Live Webinare/On-Demand Recordings on the beverage and food industry
  • Virtual tours of production facilities
  • Resistance tools for selecting the right material

Security Level

* mandatory field


Do you already have an account? Continue to Login.

Thank you. Your subscription was successful.

We have sent you an e-mail. Please click on the included activation link to complete the registration.

Have you forgotten your password?

Please enter your email address to reset it.

* mandatory field

The form has been successfully sent.

We have sent you an email. Please click on the included link to assign a new password.