Sealing Excellence, Securing Industry

CFKS High Pressure Water Seal 18*30*5.5 for High Pressure Washer Pump Pressure Washer Seal

CFKS High Pressure Water Seal 18*30*5.5 – Ultimate High Pressure Washer Pump Seal for pressure washers. 18-30-5.5 German CPU + PTFE coating delivers 10MPa water resistance & zero leaks. Direct replacement for Karcher, Nilfisk, Bosch High Pressure Water Seal. 18×30×5.5 Perfect for 1500-4000 PSI car wash pumps & water jet cleaners. Lifetime warranty, 24h worldwide shipping!  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*30*5.5 High Pressure Water Seal  Packing 1 pc per bag

 

CFKS High Pressure Water Seal 18*30*5.5 – Premium rotary High Pressure Water Seal engineered for high-pressure washer pumps. German CPU polyurethane (94A) + self-lubricating PTFE coating withstands 10MPa water pressure with zero leakage. Single-lip + reinforced fabric design outperforms standard NBR seals by 5X in continuous water flow. Direct replacement for Karcher, Nilfisk, Bosch High Pressure Water Seal series.

This premium High Pressure Water Seal fits 18×30×5.5 mm shaft, operates -40°C to +120°C, ≤30 m/s rotary speed. Perfect High Pressure Washer Pump Seal for Kärcher, Lavor, Annovi industrial cleaners (200-500 bar). Anti-hydrolysis coating prevents swelling in water-glycol. Installs in standard TC groove, zero downtime upgrade.

Trusted by 500,000+ pressure washer technicians worldwide. CFKS High Pressure Water Seal includes lifetime warranty, 48h global shipping, EU/USA tariff-free. MOQ 10pcs, free samples + pump seal kit chart. Bulk orders drop 50% instantly – upgrade to true High Pressure Water Pump Seal now!

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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