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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.

Angular contactbearing arrangement

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Angular contactbearing 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.

Smart sealing solutions for nearly every sector, technology trends and exclusive interviews – Find them in our company magazine ESSENTIAL with a print subscription and digitally. Take a look inside!

Freudenberg Sealing Technologies has been developing innovative brand products at the highest level for decades. We will find a customized solution for you.

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

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Angular contactball bearing

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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.

Angular contactbearing

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