Professional oil seal manufacturers will help you understand Bonded Seal

Bonded Seal,Do you really understand?Bonded seal, also known as a Dowty seal or a sealing washer, is a type of sealing device that is designed to provide a reliable and efficient seal between two mating surfaces. It consists of a metal washer with a rubber or elastomeric ring bonded to one side.For product details, please contact NOK-CN factory

 

Bonded seal, also known as a Dowty seal or a sealing washer, is a type of sealing device that is designed to provide a reliable and efficient seal between two mating surfaces. It consists of a metal washer with a rubber or elastomeric ring bonded to one side. This combination of materials offers excellent sealing properties for a wide range of applications.

The metal washer provides stability and support, allowing the seal to withstand high pressures and temperatures. It is typically made from steel or stainless steel, ensuring durability and resistance to corrosion. The rubber or elastomeric ring is usually made from materials such as Nitrile (NBR), Viton (FKM), or EPDM (Ethylene Propylene Diene Monomer). These materials offer excellent sealing properties, including resistance to oil, fuel, water, and a variety of chemicals.

The bonded seal is designed to be compression-activated, meaning that its sealing ability is enhanced when it is subjected to compressive forces. When the bolt or screw is tightened, the metal washer compresses the rubber ring, causing it to deform and fill any imperfections or irregularities on the mating surfaces. This compression creates a tight and reliable seal, preventing leakage of fluids or gases.

Function:

The primary function of the Bonded Seal is to create a reliable seal between two surfaces, preventing leakage of fluids under high-pressure conditions. This seal is especially effective in applications where constant pressure fluctuations occur, as it ensures a tight connection between the mating surfaces, even when subjected to vibration and thermal cycling.

The Bonded Seal works by utilizing the compression and deformation properties of the elastomeric ring. When subjected to pressure, the ring deforms and compresses, filling all the imperfections and irregularities on the surfaces, forming a complete seal. This ensures a leak-free connection, providing enhanced safety and performance.

Features:

1. Enhanced Sealing Performance: The Bonded Seal offers exceptional sealing performance as it adapts to variations in surface imperfections, providing a secure and leak-free connection. Its unique design and composition enable it to seal connections even with surface irregularities present.

2. High Pressure and Temperature Resistance: This seal is specially engineered with materials that exhibit excellent resistance to high pressure and temperature conditions. It can withstand extreme environments, making it suitable for a wide range of applications across various industries.

3. Versatility in Applications: The Bonded Seal finds diverse applications due to its compatibility with different fluids, including hydraulic oils, water, fuels, and gases. It performs effectively in hydraulic fittings, pumps, valves, and plumbing connections, among others.

4. Simplified Assembly Process: The design of the Bonded Seal enables simple and quick assembly, reducing assembly time and cost. Its one-piece construction eliminates the need for additional gaskets or sealants, streamlining the installation process and minimizing the risk of errors.

5. Leakage Prevention: By offering a reliable and consistent seal, the Bonded Seal prevents leakage, ensuring the safe and efficient functioning of systems. This feature is crucial in applications where leakage can lead to costly damages, environmental hazards, or compromise the overall system performance.

6. Longevity and Durability: The Bonded Seal is built to withstand harsh operating conditions, maintaining its sealing effectiveness and longevity. Its resistance to wear, abrasion, and degradation ensures that it remains efficient over an extended period, minimizing maintenance and replacement costs.

7. Cost-effective Solution: The Bonded Seal offers an economical sealing solution, combining durability and exceptional performance. Its long service life, reduced maintenance requirements, and elimination of additional sealing materials contribute to cost savings for businesses.

How to Choose the Right Bonded Seal:

When choosing the right bonded seal for your application, several key factors need to be considered to ensure optimal performance and longevity. Here are some crucial points to bear in mind:

1. Size and Dimensions: Bonded seals are available in a range of different sizes and dimensions to fit various bolt sizes and applications. It is important to measure and determine the precise dimensions required for your sealing application to ensure a proper fit.

2. Material Compatibility: The material used in the bonded seal must be compatible with the fluid or media being sealed. For example, if the seal is exposed to hydraulic fluids, it should be made from materials such as Nitrile (NBR) or Viton (FKM), which offer excellent chemical resistance and fluid compatibility.

3. Pressure Rating: Consider the maximum pressure the bonded seal will experience during operation. Different bonded seals are designed to withstand specific pressure ranges. Ensure that the selected seal has a pressure rating that exceeds the maximum pressure expected in your application to prevent seal failures or leakages.

4. Temperature Range: Bonded seals may be exposed to varying temperature conditions, ranging from extreme cold to high heat. It is crucial to choose a bonded seal that can withstand the temperature range encountered in your application without compromising its sealing performance. Materials like Viton (FKM) are suitable for high-temperature environments, while Nitrile (NBR) is ideal for low to medium temperatures.

5. Application Type: Determine whether the seal will be used in static or dynamic applications. Static applications involve seals that are not continuously subjected to motion, while dynamic applications require seals that can withstand movement or vibration without compromising their sealing effectiveness. Choose a bonded seal that is specifically designed for the type of application to ensure optimal performance.

6. Quality and Certification: Ensure that the bonded seals you choose meet industry standards and undergo rigorous quality control processes. Look for seals that are manufactured in compliance with ISO and other relevant certifications to guarantee their reliability, durability, and performance.

7. Specialized Requirements: Some applications may have special requirements, such as resistance to specific chemicals, food-grade compatibility, or electrical conductivity. It is essential to identify any unique requirements or regulations that apply to your application and choose the appropriate bonded seal accordingly.