Sealing Excellence, Securing Industry

CFKS Corrosion Resistant NBR Water Seal 18*26*5.5 Rotary Water Seal for Pump Shaft Waterproof

CFKS NBR water seal 18×26×5.5 is a corrosion resistant rotary 18-26-5.5 water sealing ring 18 26 5.5 designed for pump shaft applications. This waterproof rubber water seal 18*26*5.5 provides reliable sealing performance, low friction, and excellent resistance to moisture and wear. Widely used in water pumps, irrigation equipment, and industrial plumbing systems, it supports OEM and custom requirements. 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 18*26*5.5 High Pressure Water Seal  Packing 1 pc per bag

 

The CFKS corrosion resistant NBR water seal 18*26*5.5 is specially designed for rotary pump shaft sealing applications. Made from high-quality NBR rubber, this water seal provides excellent waterproof performance, stable sealing efficiency, and reliable protection against water leakage in continuous rotary motion.

This rotary water seal features strong resistance to corrosion, moisture, and wear, making it ideal for water pumps, irrigation systems, industrial equipment, and plumbing systems. The precise structure ensures low friction on the shaft while maintaining consistent sealing pressure to extend service life and reduce maintenance frequency.

CFKS water seals support OEM and ODM customization, including material options, hardness, and size tolerances. With stable quality control and strict inspection standards, this NBR water sealing ring is suitable for long-term use in demanding pump shaft environments requiring waterproof and corrosion-resistant sealing solutions.

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
High Pressure Water Seal Size List
TypeSIZETypeSIZE
v type18*30*5.5U type15*22*5
v type18*28*5.5U type15*24*5
v type18*32*6U type18*26*5
v type20*32*5.5U type18*28*6
v type20*28*5.5U type20*28*5.7
v type22*28*5.5U type20*30*6
v type16*24*5.5U type28*36*5.9
v type15*25*5.5U type28*38*5.9
v type18*35*7U type22*30*6
v type14*26*5U type12*20*5
v type22*32*.5U type14*22*5
v type18*26*5.5U type18*24
v type20*35*5.5U type25*37*6.4
v type18*35*7U type13*20*5
v type18*32*7U type14*20*5
v type20*30*6U type16*24*5.5
v type20*35*7U type18*25*5
v type18*30*6U type20*35*6
v type24*35*6U type24*34*6
v type15*28*5U type18*25*5
v type18*32*5.5U type18*28*6
v type12*20*5U type18*26*6
v type12*22*5.5U type22*32*5.5
v type18*32*7.1U type18*26*5

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