Sealing Excellence, Securing Industry

CFKS Bonded Sealing Washer FKM Rubber Steel Bonded Seal Dowty Washer Hydraulic Sealing Washer

CFKS bonded sealing washer is an FKM rubber steel bonded seal designed for hydraulic sealing applications. This Dowty washer provides excellent resistance to high temperature, oil, and chemicals while ensuring strong pressure resistance and leakage prevention. Commonly used as a hydraulic sealing washer in fittings, valves, and pumps, it delivers stable sealing performance and long service life in demanding industrial environments. Find your sealing solution with CFKS — contact us for a quote.

Brand Name CFKS OEM  Accpetable
Material NBR FKM Silicone  Features  wear resistance
Dimensions Customized Certificate  ISO9001/TS16949
Type Bonded Seal  Packing 1 pc per bag

 

The CFKS bonded sealing washer is an FKM bonded seal designed for high-performance hydraulic sealing applications. This Dowty washer combines fluororubber (FKM) with a steel ring, providing excellent sealing reliability and leakage prevention in demanding operating conditions.

Manufactured with heat-resistant and chemical-resistant FKM rubber, this steel bonded seal offers superior resistance to high temperatures, oils, fuels, and aggressive hydraulic fluids. The metal rubber bonded structure enhances pressure resistance and prevents seal extrusion, ensuring stable sealing under high-pressure environments.

CFKS FKM bonded seals are widely used as hydraulic sealing washers in fittings, valves, pumps, and pipe connections. Designed for long service life and heavy duty sealing, this Dowty washer delivers consistent performance and dependable sealing in industrial hydraulic systems.

Frequently Asked Questions (FAQ)

Why does my CFKS oil seal fail prematurely? Common causes and prevention tips2025-06-26T15:44:39+08:00

Premature oil seal failure can result from improper installation, poor shaft finish, incorrect material selection, or excessive pressure. To prevent this, ensure the shaft surface is smooth and within tolerance, use correct tools during installation, and choose seals made from materials compatible with your media and temperature.

How to correctly install a CFKS industrial oil seal to avoid leakage2025-06-26T16:04:32+08:00

Always clean the shaft and bore before installation. Use appropriate seal drivers to avoid deformation. Lubricate the lip before fitting to reduce friction during the first rotation. Ensure the seal is seated evenly and not tilted to avoid leaks.

What to do when your CFKS hydraulic seal is leaking under pressure2025-05-20T16:33:14+08:00

Check if the pressure exceeds the seal’s rated limit. Examine for wear, hardening, or improper installation. Replace the seal if damaged, and consider upgrading to a high-pressure CFKS seal variant. Also, verify that the housing and shaft are properly aligned.

How to choose the right CFKS oil seal for extreme operating environments2025-05-20T16:34:39+08:00

For high temperatures, aggressive chemicals, or abrasive environments, choose CFKS seals made of FKM, PTFE, or high-performance elastomers. Consider using seals with protective dust lips or metal casing. Our team can recommend the best fit for your application.

CFKS Seal Manufacturing Co., Ltd.
https://cfksseals.com/
 Email: cfksnacy@gmail.com  Mobile/WhatsApp/Wechat: (86) 188-3097-5917
Bonded Seal Size List
MIDInner diameter toleranceODOuter Diameter ToleranceApplicable Thread
66.4±0.1212±0.12M6
88.414M8
1010.416M10(G1/8")
1212.418M12
1414.420±0.15M14(G1/4")
1616.422M16
1818.425M18(G3/8")
2020.5±0.1428M20
2222.530M22(G1/2)
2424.532±0.20M24
2727.535M27(G3/4")
3030.538M30
3333.5±0.1742M33(G1)
3636.646M36
3939.650M39
4242.653±0.25M42(G11/4)
4545.656M45
4848.760M48(G11/2)
5252.7±0.2066M52
6060.775M60(G2")

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