Chengxin Industrial Seal King

industrial grade flange gaskets

Cheng Hsin specializes in providing industry-leading industrial-grade flange gasket solutions, using the most advanced materials and precision manufacturing processes to ensure that excellent sealing performance can still be achieved under extreme operating conditions. It effectively prevents leakage, significantly reduces downtime, extends the service life of equipment, and enhances overall production efficiency and operational safety.
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Have you experienced the cost of seal failure?

Do flange gaskets frequently fail prematurely under high temperatures and pressures or in corrosive environments, resulting in unplanned shutdowns?
After installing the flange gasket, do you still need to spend a lot of time adjusting the bolt torque over and over again, which increases the maintenance cost?
Do you have difficulty in selecting the most suitable flange gasket due to the lack of professional technical support in the face of complicated working conditions?

Let Xin Industrial Seal King help you!

With over 20 years of experience in sealing technology, we understand that every industry and every application has unique sealing needs. From material selection and sizing to installation guidance, we offer comprehensive technical support to ensure you select the most appropriate gasket solution. Our engineering team has extensive on-site experience in providing customized sealing designs for demanding applications such as high temperature, high pressure, and corrosive media. Whether in the petrochemical refining, chemical process, power generation or food and pharmaceutical industries, we have successful application cases and complete technical data to support.

Guaranteed quality ingredients

Using internationally certified raw materials, each batch of products undergoes stringent quality inspection to ensure stable and reliable material performance. Complete material certificates and test reports are available for traceability.

Precision Manufacturing

Advanced CNC machining equipment is introduced to ensure dimensional accuracy and surface flatness. Strict process control allows each piece of gasket to meet the highest standards.

Professional Technical Support

Our experienced engineering team provides selection advice, installation guidance and troubleshooting services. We not only sell products, but also your sealing technology partner.

Improve Inventory Supply

Common specifications are always in stock, and special specifications are quickly customized. Perfect logistics network ensures timely delivery, so that your production will not be delayed due to waiting.

Introduction and application of flange gasket

Basic function of flange gasket

Flange gasket is a key sealing element in industrial piping systems, located between two flange joints. Its main function is to fill the surface microscopic defects, and under the action of compression force to form a reliable barrier, effectively preventing the leakage of fluids or gases from the joint, to ensure the operational safety and efficiency of piping systems.

Variety of applications

Flange gaskets are widely used in various harsh industrial environments. In heavy industries such as petrochemical, chemical processing and power generation, they are responsible for sealing against high temperatures, pressures and corrosive media. In the food and pharmaceutical industries, they are required to meet high cleanliness standards to ensure a contamination-free production process.

Sealing Mechanisms and Selection Considerations

The gasket realizes the sealing by deforming under pressure to fit the flange surface tightly. When selecting a gasket, key factors such as operating temperature, pressure, chemical compatibility of the media (e.g., acidity, alkalinity, corrosion), and resilience of the gasket material are all taken into consideration to ensure long-term stable and efficient sealing performance.

Product specifications and technical parameters

We offer a full range of products that meet international standards
Product Type Applicable Standards Temperature Range Pressure Level
Metal Wrap Spacer ASME B16.20
JIS B2404		 -200°C ~ 800°C PN10 ~ PN250
Expanded Graphite Gasket DIN 28090-2
GB/T 539		 -240°C ~ 650°C PN10 ~ PN420
PTFE Gasket ASME B16.21
DIN 2690		 -200°C ~ 260°C PN10 ~ PN100
Rubber Gasket JIS B2404
HG/T 20606		 -50°C ~ 200°C PN6 ~ PN40
Metal Flat Gasket ASME B16.20
EN 1514		 -200°C ~ 800°C PN16 ~ PN420

Remarks: The actual range of application should be evaluated according to the specific material and working conditions. Our engineering team can assist you in selecting the most suitable product specification.

Successful application cases in various industries

Petrochemical refining industry

After a large refinery adopted our metal-wound gaskets, flange leakage incidents were reduced by 85%, and annual maintenance cost savings exceeded $3 million.

Employment:

  • Medium: Crude oil, light oil
  • Temperature: 280-350°C
  • Pressure: PN100-PN150

Chemical Process Industry

Chemical plants use PTFE-coated gaskets in strong acid and alkali piping systems, which perfectly solves the sealing problem of corrosive media and extends the service life by 3 times.

Employment:

  • Medium: Sulfuric acid, hydrochloric acid
  • Temperature: room temperature to 150°C
  • Pressure: PN16-PN40

Power Generation Industry

Expanded graphite gaskets are used in high-temperature steam lines in thermal power plants to effectively withstand thermal cycling shocks and ensure long-term stable operation.

Employment:

  • Medium: Superheated steam
  • Temperature: 450-550°C
  • Pressure: PN250-PN420

Quality Assurance and Certification

ISO 9001 Quality Management

We have passed the international quality management system certification to ensure that each production process meets strict standards. We have established a complete quality traceability system from raw material procurement, manufacturing process control to finished product inspection to provide customers with the most reliable product protection.

Material Certification Documents

Provide complete Mill Certificates and third party inspection reports. All metal materials can be traced back to the original melting lot number to ensure that the chemical composition and physical properties of the materials are true and reliable.

Performance Test Report

Each batch of products undergoes rigorous inspection such as compression rebound test, leakage test, etc. We can provide detailed test data and performance curve diagrams to let you fully understand the performance under actual working conditions. We can provide you with detailed test data and performance curve diagrams, so that you can fully understand the performance of the product under actual working conditions.

Compliance with international standards

Products are designed and manufactured in accordance with ASME, API, DIN, JIS, GB and other international and regional standards. No matter where your project is located, we can provide a sealing solution that meets local engineering specifications.

Customized - Professional selection process ensures optimal sealing!

01

Requirements Analysis

Learn more about your application, including key parameters such as media properties, temperature and pressure ranges, and flange specifications.

02

Material Selection

Recommend the most suitable gasket material according to the working conditions, balancing performance and cost considerations.

03

Specification Confirmation

Confirmation of flange standard, sealing surface type, gasket size and other detailed specifications.

04

Technical Verification

Provide technical information and test data to ensure that it meets your requirements.

05

Installation instructions

Provides proper installation procedures and bolt torque recommendations to ensure optimal sealing.

06

After Sales Support

Continuous tracking of usage, technical consultation and troubleshooting services

Successful Cases

Testimonials

We have been using your metal-wound gaskets in the piping system of our high-temperature cracker for more than two years without any leakage problem. Not only the quality of the product is excellent, but also the professionalism of the technical support team is impressive, and they can provide the most suitable solutions for our special working conditions.

Taiwan Petrochemical Corporation Equipment Manager

In the past, we were often troubled by flange leakage problems, which not only affected production but also increased maintenance costs. After changing to your recommended expanded graphite gaskets, the leakage incidents have been greatly reduced, and the maintenance workload has also been significantly reduced. More importantly, the installation training you provided enabled our technicians to master the correct construction methods.

Maintenance Supervisor of a chemical plant

Sealing in high temperature steam systems has always been a challenge for us, as traditional gaskets often fail due to heat cycling. Using your high-temperature gasket solution not only extends the service life, but also improves the reliability of the overall system. The professional after-sales service gives us peace of mind.

Power Plant Engineer

Take Immediate Action

Contact us today to start your sealing solution!

By choosing us, you are choosing a reliable long-term partner. No matter what kind of sealing challenge you are facing, we have the experience, ability and enthusiasm to help you find the best solution.

Free Technical Consultation

Our senior engineers will analyze your application requirements and provide professional material selection recommendations.

Sample Testing Services

Free samples are available for your hands-on testing and verification to confirm performance meets expectations.

Quick Quote Delivery

Quotes completed within 24 hours; rush orders delivered in 2-3 days to support your project timeline.
Are you ready to get started?

Ready to get started?

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