Oil Buffered Face & Bushing Seals

Oil Buffered Face and Bushing Seals
Kaydon has supplied the industry with safe, hard-working Oil Buffered Seals since the 1930s. Oil seals maintain sealing at shutdown even with loss of buffer fluid. Our latest Pumping Bushing design was featured in Compressor Tech Two. See Certified Seal Repair on this site for the full story. Duane Dawes was experiencing excessive oil consumption before switching to Kaydon. Oil leakage to drain is normally less than 5 GPD. If you are experiencing greater oil consumption, you should call us.

Features:

• Steel-retained face seal and bushings for durability and stability
• Hard-faced mating surface
• Solid TFE secondaries
• Directional windback to discourage process contamination with buffer leakage
• Supplied in crossflow and non-crossflow versions - Unitized assembly for ease of handling and installation
• Arrangements available up to 3,000 psig

Oil Buffered Bushing Seals
Long the mainstay for sealing high-speed rotary process equipment, bushing seals from Kaydon are available in a wide variety of types and arrangements to control flows and contamination.

Features:

• Rugged carbon/steel retained assemblies
• Free floating rings with minimized hydraulic side loading for easier centering and reduced rotordynamic effects
• Hard-faced mating surfaces for durability
• Controlled liquid flows - typically less than 10 GPD to the sour oil drain
• Unitized assembly for ease of handling and installation

Typical Performance Capabilities:

• Pressures to 3000 psi
• Speeds to 500 feet per second
• Temperature to 475°F

If your operating conditions exceed the typical performance range, a Kaydon engineering evaluation will determine a viable sealing arrangement.
Material selection.

Based on application requirements and extensive history of material studies in Kaydon's Chemical and Metallurgical Laboratory, a wide spectrum of materials is available:

• Alloy Steels
• 300 and 400 Stainless
• NACE approved materials
• Corrosion resistant alloys: Inconel® and Hastelloy®
• Cermets
• Ceramics

Prior to shipment, seals are extensively tested at full pressures and operating speeds to ensure performance characteristics. Kaydon test facilities include:

• Speeds to 35,000 RPM
• N2 Pressures to 3,000 psig
• Oil Pressures to 4,500 psig
• Water Pressures to 450 psig

Kaydon Application List For Industrial Shaft Seals

Kaydon Designs and Manufactures Seals For The Most Demanding Compressor Applications

• DEMAG DELAVAL TURBOMACHINERY
• DELAVAL STORK
• IMO INDUSTRIES COMPRESSORS
• A-C COMPRESSOR
• BELOIT POWER
• FAIRBANKS MORSE CENTRIFUGAL & SCREW COMPRESSORS
• DRESSER-RAND CENTRIFUGAL & SCREW COMPRESSORS
• ELLIOTT TURBOMACHINERY COMPRESSORS

Kaydon produces O.E.M. compressor seals for COOPER, SOLAR, NUOVO- PIGNONE, BHARAT HEAVY ELECTRICALS, EBARA and others.

Consult Kaydon for your specific sealing needs. Advice and consultation are available on initial design and application. Written installation and maintenance instructions can be provided, as well as field engineering support.
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