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Kammprofile gaskets

Kammprofile gaskets, which are also commonly known as serrated metal gaskets or grooved gaskets, are used for high-pressure and high-temperature sealing applications. They typically consist of a one-piece metallic core with concentric serrations or grooves on both sealing faces, often covered with a soft sealing material such as graphite or PTFE (polytetrafluoroethylene).  

These gaskets are specifically engineered to provide reliable sealing performance under pressure conditions, whereas conventional gaskets are liable to distortion or displacement failure. 

Kammprofile gaskets are manufactured in different materials and noncircular shapes with accuracy. They can also be custom-engineered to fit various applications.

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Product Details

Style RK1 

RK1 is manufactured without a guide ring for tongue and groove, or recessed flange applications such as male and female. It is typically used in heat exchanger applications and applied as an upgrade to double jacketed gaskets. It is highly suggested to have the nubbin (if present) machined out as a good practice.  Where pass partitions are required, they are also kammprofiled and laminated. They are the same thickness as the ring, and securely held in place with welds. 

Style RK2 

RK2 is constructed with an integral guide ring for aligning purposes. It is suggested to be used in raised face flanges. The gasket is typically designed and sized per EN12560-6 spec for ASME B16.5 flanges, but can be manufactured to fit other standards. 


Style RK3 

RK3 utilizes a loose fit guide ring. This popular design is preferred for nominal pipe size and pressure class raised face flanges and is used in equipment with excessive radial shear characteristics, thermal cycling, and expansions.  The gasket is typically designed and sized per EN12560-6 spec for ASME B16.5 flanges, but can be manufactured to fit other standards. 

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About Us
Ningbo Rilson Sealing Material Co., Ltd.
Ningbo Rilson Sealing Material Co., Ltd. was founded in 2007, is a professional Kammprofile gaskets manufacturer and Kammprofile gaskets supplier and located in Ningbo, Zhejiang Province. The manufacturing facility spans across 20,000 square meters and is dedicated to ensuring the secure and dependable operation of fluid sealing systems, offering clients the appropriate sealing technology solutions. We operate numerous production lines for sealing products, specializing in the design and manufacture of sealing gaskets and other sealing materials for the petroleum, chemical, power, shipbuilding, and machinery manufacturing sectors. Our primary products consist of spiral wound gaskets, ring joint gaskets, kammprofile gaskets, corrugated metal gaskets, insulation kit gaskets, and Non-asbestos gaskets, among others.
Our clientele hails from various parts of the globe, and through our extensive experience in the industry, we have earned the trust and recognition of our customers. Presently, we have obtained certifications from several prominent companies. Additionally, we have successfully achieved ISO9001:2015 quality management system certification, as well as the API 6A certificate, among others.
As a professional Kammprofile gaskets factory, The company is dedicated to delivering value to customers, promoting health and happiness among workers, and producing positive social effects. We uphold the core principles of integrity, precision, innovation, and mutual success. With the aspiration of becoming the preferred brand in industrial gaskets, we are committed to establishing ourselves as a top-tier player in the fluid sealing industry and working towards the objective of ensuring mutual satisfaction among customers and employees.
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  • ISO9001
  • ISO14001
  • ISO45001
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Kammprofile gaskets Industry knowledge

1. Kammprofile Gaskets for High Performance Industrial Sealing

Kammprofile gaskets are widely recognized as one of the most reliable sealing solutions for demanding industrial environments. These gaskets feature a solid metal core with concentric grooves and are typically covered with soft sealing materials such as graphite or PTFE to improve sealing efficiency.

Compared with traditional soft gaskets, kammprofile gaskets provide superior blowout resistance, excellent recovery performance, and enhanced sealing stability under fluctuating pressure and temperature conditions.

In industries such as oil refining, petrochemical processing, and power generation, gasket failure can lead to expensive shutdowns and safety risks. Studies show that high-quality metal core kammprofile gasket sealing performance can reduce leakage rates by more than 60% compared with conventional compressed fiber gaskets.

（1）Main Industrial Applications

  • Heat exchanger flange sealing
  • Petrochemical processing systems
  • High-temperature steam pipelines
  • Power plant pressure vessels

2. Kammprofile Gasket vs Spiral Wound Gasket

Understanding the differences between kammprofile gasket vs spiral wound gasket is essential for selecting the correct sealing solution. Although both gasket types are widely used in industrial flange systems, they have different structural designs and application advantages.

Kammprofile gaskets feature a solid metal core with serrated grooves, while spiral wound gaskets consist of alternating metal windings and soft filler materials. Kammprofile gaskets generally offer better sealing stability under low bolt load conditions and are especially suitable for heat exchangers.

（1）Performance Comparison Table

Comparison Between Kammprofile Gaskets and Spiral Wound Gaskets
Feature Kammprofile Gasket Spiral Wound Gasket
Structural Strength High Medium
Heat Exchanger Use Excellent Good
Low Bolt Load Performance Excellent Moderate

3. High Pressure Kammprofile Gasket for Heat Exchanger Applications

High pressure kammprofile gasket for heat exchanger systems is becoming increasingly popular because of its exceptional resistance to thermal cycling and pressure fluctuations.

Heat exchangers often operate under temperatures exceeding 400°C and pressure levels above 150 bar. Under these conditions, gasket reliability becomes critical for maintaining operational safety and minimizing downtime.

Graphite-faced kammprofile gaskets are commonly used in these systems because graphite provides excellent temperature resistance and compressibility while the metal core maintains structural integrity.

（1）Advantages in Heat Exchanger Systems

  1. Improved sealing under thermal expansion
  2. Lower leakage rates during pressure cycling
  3. Longer operational lifespan
  4. Reduced maintenance and replacement costs

4. Graphite Faced Kammprofile Gasket Manufacturer and Installation Precautions

Choosing a professional graphite faced kammprofile gasket manufacturer is essential for achieving reliable sealing performance in industrial systems.

Ningbo Rilson Sealing Material Co., Ltd. was founded in 2007, is a professional Kammprofile gaskets manufacturer and Kammprofile gaskets supplier and located in Ningbo, Zhejiang Province. The manufacturing facility spans across 20,000 square meters and is dedicated to ensuring the secure and dependable operation of fluid sealing systems, offering clients the appropriate sealing technology solutions. We operate numerous production lines for sealing products, specializing in the design and manufacture of sealing gaskets and other sealing materials for the petroleum, chemical, power, shipbuilding, and machinery manufacturing sectors. Our primary products consist of spiral wound gaskets, ring joint gaskets, kammprofile gaskets, corrugated metal gaskets, insulation kit gaskets, and Non-asbestos gaskets, among others.

Our clientele hails from various parts of the globe, and through our extensive experience in the industry, we have earned the trust and recognition of our customers. Presently, we have obtained certifications from several prominent companies. Additionally, we have successfully achieved ISO9001:2015 quality management system certification, as well as the API 6A certificate, among others.

As a professional Kammprofile gaskets factory, the company is dedicated to delivering value to customers, promoting health and happiness among workers, and producing positive social effects. We uphold the core principles of integrity, precision, innovation, and mutual success.

（1）Precautions for Using Kammprofile Gaskets

  • Choose suitable gasket materials according to pressure and media conditions
  • Ensure flange surfaces are clean and free from rust or scratches
  • Apply bolt tightening symmetrically and gradually
  • Conduct regular inspection and maintenance to prevent leakage

Proper installation and maintenance can increase gasket service life by more than 30% while significantly reducing unexpected shutdowns.

5. Frequently Asked Questions (FAQ)

Q1: What is the main advantage of kammprofile gaskets?
Kammprofile gaskets provide excellent sealing performance, strong blowout resistance, and superior recovery under fluctuating pressure conditions.

Q2: Are kammprofile gaskets suitable for heat exchangers?
Yes, they are widely used in heat exchanger applications because they perform well under thermal cycling and low bolt load conditions.

Q3: What facing materials are commonly used for kammprofile gaskets?
Common facing materials include graphite, PTFE, and other soft sealing layers depending on application requirements.

Q4: How often should kammprofile gaskets be inspected?
Inspection frequency depends on operating conditions, but regular maintenance checks are recommended to ensure sealing reliability and safety.