Type 520 Seal

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A stationary, high performance bellows seal for critical or high speed applications. Will accept any type of a secondary seal; elastomers, PTFE or flexible graphite. Mostly furnished in a cartridge form.

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Internal stationary Bellows seal.

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No springs needed. Bellows provides for even load distribution.

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Bellows acts as a flexible secondary seal without shaft fretting.

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Interchangeable secondary seals.

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Large tolerance to axial and angular motions.

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Temperature range of -75°C to 425°C depending on size and materials.

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Speeds up to 20,000 RPM, and pressure to 20 bar, depending on size, sealed media, and operating conditions.

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Typically supplied in a cartridge.