Sealing Excellence, Securing Industry

CFKS White O-Ring Kit Silicone O Ring Assortment Box Rubber O-Ring Assortment Box

Engineered for demanding industrial maintenance and OEM assembly, the CFKS White Silicone O-Ring Assortment Box provides an immediate, reliable barrier against fluid and gas migration across varying temperature cycles. Manufactured from premium Silicone this kit eliminates operational downtime by offering precisely categorized standard seals ready for rapid deployment in high-sanitation or elevated-thermal environments.

  • Food-Grade Silicone : Non-toxic, odorless, and chemically inert for food processing, beverage dispensing, and medical equipment.

  • Extreme Thermal Stability: Maintains elasticity and structural integrity across wide thermal fluctuations without hardening or cracking.

  • Organized Storage Box: Heavy-duty compartment box with clear sizing charts to ensure error-free selection during field service or assembly.

Find your sealing solution with CFKS — contact us for a quote.

Product Name CFKS White Silicone O-Ring Kit Specification Standard Assortment (Customized Available)
Material Food-Grade Silicone ( NBR / FKM) Feature High Temp Resistant, Non-Toxic, Low Compression Set
Work Temperature -60℃ to 220℃ Hardness 50 to 70 Shore A
Type Static & Dynamic Radial Seals Usage Food Machinery, Pumps, Valves, Hydraulic Cylinders, Pneumatics, Motors

 

The fundamental operation of the silicone O-ring relies on symmetrical cross-sectional compression within a prescribed gland housing. Under fluid or gas pressure, the elastomer deforms within its elastic boundary, transmitting force uniformly across mating surfaces to form a positive seal. Due to its superior recovery rate and low compression set under thermal stress, the ring maintains constant radial pressure against both static flanges and low-speed dynamic shafts, neutralizing micro-gaps caused by thermal expansion or operational vibration.

While NBR excels in petroleum-based oil resistance and FKM delivers high chemical immunity against harsh aromatic fuels, Food-Grade White Silicone is specifically optimized for thermal endurance and cleanroom compatibility. For aggressive chemical or heavy industrial oil applications, alternative FKM or NBR seal configurations are available within our custom engineering catalog.

To achieve optimal sealing longevity, inspect mating hardware for sharp burrs or chamfer edges prior to installation. Silicone O-rings possess clean surface properties, but applying a compatible silicone-based grease significantly reduces insertion friction and prevents torsional twisting during dynamic gland fitting. Thanks to the comprehensive assortment layout, technicians can perform direct drop-in replacements without disassembling whole piping manifolds or delaying production lines.

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
O-Ring Size List
DescriptionNO.I.D.±W.
AS-568A UNIVERSAL NUMBERSAS-0010.74 0.10 1.02 
AS-568AUNIVERSAL NUMBERSAS-0021.07 0.10 1.27 
AS-568A UNIVERSAL NUMBERSAS-0031.42 0.10 1.52 
AS-568A UNIVERSAL NUMBERSAS-0041.78 0.12 1.78 
AS-568A UNIVERSAL NUMBERSAS-0052.57 0.12 1.78 
AS-568A UNIVERSAL NUMBERSAS-0062.90 0.12 1.78 
AS-568A UNIVERSAL NUMBERSAS-0073.68 0.12 1.78 
AS-568A UNIVERSAL NUMBERSAS-0084.47 0.12 1.78 
AS-568A UNIVERSAL NUMBERSAS-0095.28 0.12 1.78 
AS-568A UNIVERSAL NUMBERSAS-0106.07 0.12 1.78 
AS-568A UNIVERSAL NUMBERSAS-0117.65 0.12 1.78 
AS-568A UNIVERSAL NUMBERSAS-0129.25 0.12 1.78 
AS-568A UNIVERSAL NUMBERSAS-01310.82 0.12 1.78 
AS-568A UNIVERSAL NUMBERSAS-01412.42 0.12 1.78 
AS-568A UNIVERSAL NUMBERSAS-01514.00 0.12 1.78 
AS-568A UNIVERSAL NUMBERSAS-01615.60 0.12 1.78 
AS-568A UNIVERSAL NUMBERSAS-01717.17 0.12 1.78 
AS-568A UNIVERSAL NUMBERSAS-01818.77 0.12 1.78 
AS-568A UNIVERSAL NUMBERSAS-01920.35 0.15 1.78 
AS-568A UNIVERSAL NUMBERSAS-02021.95 0.15 1.78 
AS-568A UNIVERSAL NUMBERSAS-02123.52 0.15 1.78 
AS-568A UNIVERSAL NUMBERSAS-02225.12 0.15 1.78 
AS-568A UNIVERSAL NUMBERSAS-02326.70 0.15 1.78 
AS-568A UNIVERSAL NUMBERSAS-02428.30 0.15 1.78 
AS-568A UNIVERSAL NUMBERSAS-02529.87 0.15 1.78 
AS-568AUNIVERSAL NUMBERSAS-02631.47 0.15 1.78 
AS-568A UNIVERSAL NUMBERSAS-02733.05 0.15 1.78 

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