Sealing Excellence, Securing Industry

CFKS Dowty Sealing Washer M18 Rubber NBR Bonded Metal Seal Hydraulic Bonded Seal

CFKS Dowty sealing washer M18 is an NBR rubber bonded metal seal designed for hydraulic bonded sealing applications. This Dowty seal provides excellent oil resistance, strong pressure resistance, and reliable leakage prevention. Commonly used in hydraulic fittings, valves, and hose connections, it ensures stable sealing performance and long service life in industrial hydraulic systems. 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 Dowty sealing washer M18 is a high-performance bonded metal seal designed for hydraulic sealing applications. This hydraulic bonded seal features an NBR rubber sealing element bonded to a metal washer, providing reliable sealing and effective leakage prevention.

Made from oil-resistant NBR rubber and a durable metal ring, this bonded seal offers excellent pressure resistance, corrosion resistance, and dimensional stability. The Dowty sealing washer structure ensures secure fitting on hydraulic connections, even under high-pressure and vibration conditions.

CFKS Dowty sealing washers are widely used as hydraulic bonded seals in fittings, valves, pumps, and hydraulic hose assemblies. With precise M18 sizing and consistent quality, this bonded metal seal is an ideal solution for industrial hydraulic systems requiring long-lasting and dependable sealing performance.

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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