Professional static flange and valve sealing solutions

With in-depth expertise and technical excellence, we offer high-performance and extremely reliable static flange and valve sealing solutions for your critical industrial applications. Our comprehensive solutions ensure stable equipment operation, minimize downtime, and provide the top level of safety necessary for industry in demanding environments.

Three Major Sealing Challenges

1. Frequent leaks

Unplanned downtime for units 60% and above is caused by seal failure.

2. High costs

A single leak can result in annual losses amounting to hundreds of thousands of yuan.

3. Difficulty in Selecting the Right Model

Wrong choices lead to repeated failures.

Let Xin Seal King help you

Chengxin Sealing King not only provides sealing products but is also an expert in one-stop solutions. We have a deep understanding of the challenges associated with sealing static flanges and valves. Drawing on our extensive experience and technical expertise, we tailor highly efficient and reliable sealing solutions for our customers. From precise product selection to best installation practices, we ensure the safe and stable operation of your equipment, significantly reducing the risk of leaks and maintenance costs while enhancing overall operational efficiency.

Why should you choose Bearing Seal King?

20 years of professional experience

With 20 years of experience in the sealing industry, we have accumulated a wealth of application knowledge and problem solving capabilities. Our technical team has an average of more than 15 years of experience in the industry and can quickly diagnose sealing problems and provide the best solutions.

Customized Design Capabilities

For special applications, we offer complete customized design services. From material selection, dimensional design to performance testing, we ensure that each solution is perfectly tailored to your needs. We have a professional engineering team and advanced testing equipment.

Fast Delivery Guarantee

Standard products are fully stocked and can be shipped within 48 hours for commonly used specifications. Customized products are also shipped with lead times significantly better than the industry average, and expedited service is available for urgent orders. We understand the cost of downtime and consider speedy delivery as a core competency.

Comprehensive technical support

We provide complete technical support services from selection consultation, installation guidance to troubleshooting. Our engineers can come to your plant to help solve complex sealing problems and provide preventive maintenance advice to extend the life of your equipment.

Cheng Hsin Seal King - Offering a complete line of sealing products

Spiral Wrap Gasket

Suitable for high-temperature and high-pressure applications, excellent elasticity and resilience, effective prevention of leakage. Conforms to ASME B16.20 standard, can cope with the temperature -200 ° C to 1000 ° C of the harsh environment.

Metal Covered Spacer

Combined metal housing and soft filler materials provide excellent sealing performance and durability. Especially suitable for chemical processes and highly corrosive media.

PTFE Gasket Series

Excellent chemical compatibility and low coefficient of friction, suitable for food, pharmaceutical and chemical industries. It can withstand strong acids and alkalis to ensure process purity.

Graphite sealing material

High temperature stability and excellent thermal conductivity, widely used in electric power, petrochemical and high temperature processes. Can withstand continuous working temperature up to 650°C.

Main Application Areas

petrochemical process
Natural Gas Distribution System
Power plants
Chemical Manufacturing Plant
Pharmaceutical Biotechnology
Food Processing Equipment
Paper and Pulp
Iron and Steel Metallurgy
Marine & Offshore Engineering
HVAC System
Parameters
Typical Range of Values
Applicable Products and Notes
Operating Temperature
Typical Range of Values -200°C to +1000°C
Applicable Products and Notes Spiral-wound gaskets and graphite sealing materials are suitable for high temperatures; PTFE gaskets are suitable for low temperatures.
Operating Pressure
Typical Range of Values Up to 250 Bar (3,625 psi)
Applicable Products and Notes Compliant with ASME pressure ratings, metal-jacketed gaskets perform exceptionally well in high-pressure environments.
Chemical compatibility
Typical Range of Values pH 0–14
Applicable Products and Notes The PTFE gasket series offers excellent resistance to strong acids, strong alkalis, and a wide range of chemical solvents.
Compression Ratio and Resilience
Typical Range of Values Complies with the ASTM F36 standard
Applicable Products and Notes All products are designed with excellent resilience, enabling them to effectively accommodate changes in flange surfaces and pressure fluctuations.
Fire Safety Certification
Typical Range of Values Complies with API 6FB/6FA fire safety standards
Applicable Products and Notes To address the specific needs of the petrochemical and energy industries, we ensure the integrity of our sealing products under high-temperature fire conditions.
Customer Testimonials

Customer Testimonials

"In the three years we have been working with this supplier, the flange leakage problem at our plant has been almost completely solved. Their technical team is professional and responsive, and the quality of their products is consistent and reliable. This is our most reliable sealing partner."

- Maintenance manager of a large petrochemical plant

Choose Chengxin, Choose Peace of Mind

01Professional Consultation

Our engineers will provide a free assessment of your application needs and recommend the most suitable solution.

02Sample Testing

We will provide samples for actual testing to verify that their performance meets your expectations.

03Rapid delivery

We’ll quickly arrange production after your order is confirmed to ensure your project stays on schedule.

04Installation Support

Detailed installation instructions and live online support

05Ongoing Services

Long-term technical support and regular follow-ups ensure the system runs smoothly

Cheng Hsin Seal King not only provides high quality products, but also emphasizes the long-term cooperation relationship with customers. Our technical team is always on standby to assist you in solving all kinds of sealing-related technical problems, ensuring that your equipment always maintains the best running condition.

Take Immediate Action

Get Started on Your Sealing Upgrade Plan Today

Let Chengxin Sealing King help you solve your sealing challenges

No matter what sealing challenges you face, Chengxin Sealing King can provide professional solutions. Our technical team is always ready to assist you, offering comprehensive support from needs analysis to product delivery.

Contact us now to take advantage of the following offers:

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?

Sealing Solutions for Static Flanges and Valves

From flange gaskets, O-rings, and backup rings to valve seat rings, we help you identify the appropriate sealing products and materials based on the medium, temperature, pressure, and equipment conditions.

Three Major Sealing Challenges

From leaks and maintenance costs to discrepancies in product selection, first clarify the operating conditions, then match them with the appropriate products and materials.

01

Frequent Leaks

Seal failure can lead to unplanned downtime and affect the stable operation of equipment.

02

Maintenance Costs

Repeated disassembly, reassembly, replacement, and shutdowns will continue to increase the maintenance burden.

03

Difficulty in Selecting a Model

Depending on the medium, temperature, pressure, and clearance, the product and material must be confirmed together.

Operating Conditions → Product Selection

First, narrow down the product range based on operating conditions; then finalize the specifications based on the drawings, dimensions, and equipment requirements.

Terms of UseView First
Corrosive mediaPTFE GasketFFKM O-Ring
High Temperature and High PressureSpiral-Wound Gaskets / Graphite Gaskets
General-Purpose FlangesFlat Gaskets / Metal-Clad Gaskets
Static Seals for ValvesO-RingValve Seat Ring
Extrusion RisksBackup Ring
Custom SizesRequest a Quote for Custom Seals

Main Application Areas

Chemical Processing Equipment
High-Temperature Pipelines
petrochemical process
Food and Pharmaceutical Equipment
Electric Power and Energy Equipment

Quality and Delivery Processes

Ensure consistency between product selection and quotation information, from usage requirements to delivery confirmation.

01Confirmation of Terms of UseMedium, Temperature, Pressure, Equipment Location
02Material ConfirmationPTFE, rubber, graphite, metal, or specialty materials
03Confirmation of Specifications and DimensionsStandard Specifications, Drawings, Dimensions, and Old Parts
04Product and Process ValidationApplicable Product Forms and Processing Conditions
05Confirmation of Quote and Delivery DatePlease reply with the quantity, material, and specifications.
06Delivery and Follow-up SupportProduct Delivery, Installation, and User Feedback

Not sure about the specifications? Feel free to send us photos, your old parts, or drawings first.

Please provide the currently known equipment locations, media, and operating conditions, and Chengxin will assist in compiling the items for subsequent confirmation.

Customer Testimonials

"In the three years we've been working with this supplier, flange leakage issues at our plant have been almost completely resolved. Their technical team is professional and responsive, and their products are of consistent, reliable quality."
- Maintenance manager of a large petrochemical plant
Related Products:Flange GasketO-RingBackup Ring

Choose Chengxin, Choose Peace of Mind

Professional Consultation

Assess application requirements and determine the direction.

Sample Testing

Arrange sample verification as needed.

Rapid delivery

Production and delivery schedules will be arranged after the order is confirmed.

Installation Support

Provides information on product installation and use.

Ongoing Services

Ongoing technical support and usage tracking.

Start Assessing Your Sealing Needs

Please send drawings, dimensions, photos, or information about the old parts to help speed up the product and material confirmation process.