John Crane’s PTFE bellows seals offer a solution where all process wetted seal materials are chemically inert. Metal components, springs and the clamp ring are located outside the pump seal chamber, isolated from the process fluid. Used for extremely corrosive chemicals, including acids, caustics and chemically active organic compounds. This allows a safe, cost-effective solution without the need for expensive metal alloys.
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PTFE Bellow Seals Products
Showing 1–3 of 3 products
Type 10R
PTFE Bellows Seal for Extreme Corrosion Resistance

A complete externally mounted PTFE seal with exchangeable face insert for use in extremely corrosive applications such as high concentrations...
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Type 10T
PTFE Bellows Seal for Extreme Corrosion Resistance
A complete externally mounted PTFE seal with bellow integrated PTFE face for use in extremely corrosive applications such as high...
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Type 20/20R
Chemically Inert Materials In All Areas and On All Surfaces

Types 20 and 20R shaft seals feature chemically inert materials in all areas and on all surfaces in contact with...
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