What is the delivery time for urgent orders?

We have a flexible process for handling urgent orders. For standard products with materials in stock or simple non-standard parts, the delivery time can be significantly shortened. The specific time needs to be evaluated based on the complexity of the order; please contact us immediately for the fastest delivery time.

Which industry standards do your gaskets comply with?

Our products widely comply with and meet international general standards such as API 6A, API 607, ASME B16.20, B16.5, and ISO. We can also provide products that meet specific industry specifications (such as NACE and FDA) according to customer requirements.

Can you produce gaskets of non-standard sizes or special materials?

Absolutely. Customization is one of our core services. We accept various non-standard orders and can process a wide range of high-performance materials, including Inconel alloys, special alloys, and filled PTFE.

What kind of precision and tolerances can DONHONSIL gaskets achieve?

We possess advanced precision machining capabilities. For metal gaskets and custom parts, critical dimensional tolerances can be strictly controlled within ±0.01mm, ensuring perfect assembly and sealing performance.

How do I choose the right gasket type for my application?

The selection requires comprehensive consideration of the medium, pressure, temperature, flange type, and standard requirements. We provide free technical consultation and will recommend the optimal solution by analyzing your system parameters (such as P/T curve and chemical compatibility). For example, spiral wound gaskets are recommended for high-pressure thermal cycling conditions.

Welcome To Our Precision Gasket Industry | DONHONSIL SEALING SOLUTIONS

DONHONSIL SEALING SOLUTIONS

For precise fit and enduring reliability.

Trusted across industries, backed by 20 years of expertise.

Three silver-gray metal industrial gaskets marked with specifications such as "304" and "ASME B16.20" are displayed as precision sealing elements.

What is an Industrial Gasket?

Industrial gaskets are core sealing components in precision engineering, designed to fill the gaps between two or more mating surfaces and withstand extreme conditions of pressure, temperature, and corrosive media.

Their primary function is to create a durable, leak-proof seal, ensuring process integrity, enhancing safety, and guaranteeing long-term system stability.

In critical sectors such as petrochemicals, power generation, and aerospace, high-performance gaskets are of paramount strategic importance for preventing leaks, improving energy efficiency, and protecting the environment.

Classification of Industrial Gaskets – Hot-Selling Styles

The spiral wound gasket provides excellent resilience for high-pressure, high-temperature flanged connections.

Kammprofile Gasket

Heavy-Duty Metallic Gasket for Pipelines

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Non-asbestos Gasket

High-Temp Asbestos-Free Gasket for Valves

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Spiral Wound Gasket

DH-G-SW piral Wound Gasket - Semi

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Ring Joint Gasket

DH-G-RJ Ring Joint Gasket(RTJ)

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The Dimensions of Industrial Gaskets

The dimension standard are ASME B16.20,EN 1514,JIS B2404,OCT26.260.454,HG/T 20606-20631 etc.

A metal spiral wound gasket compliant with ASME B16.20 standard, featuring inner and outer retaining rings, suitable for high-temperature and high-pressure sealing.

A metal ring joint gasket (RTJ) for high-pressure pipeline flange connections, with a metallic surface finish.

Close-up cross-sectional view of a spiral wound gasket, showing the alternating layers of metal winding strip and filler material.

Application of Industrial Gaskets-Where Absolute Sealing Matters

Empowering key industries: We provide superior and reliable sealing solutions for the petrochemical, power energy, aerospace, and food and pharmaceutical industries, ensuring the safe and stable operation of core systems in high-pressure, high-temperature, highly corrosive, and hygienically demanding environments.

Oil and Petrochemicals

Oil and Petrochemicals

As sealing experts for process industries, we provide critical sealing solutions for refineries, chemical plants, and offshore platforms. From wellhead equipment (API 6A) and high-pressure reactors to pipelines handling corrosive media, our metal ring gaskets (RTJ), spiral wound gaskets, and other products are designed to withstand extreme pressure, high temperatures, and acidic environments such as hydrogen sulfide, ensuring production safety, environmental compliance, and long-term operation.
Power and Energy

Power and Energy

At the forefront of energy production, our seals protect the core of power plants. Whether it's the high-temperature and high-pressure flanges of boilers and turbines in thermal power plants, or the demanding systems of nuclear power plants, our gasket solutions, optimized for extreme temperature and pressure cycles, ensure energy conversion efficiency and uninterrupted operation of facilities, providing reliable power to the grid.
Aerospace and Marine

Aerospace and Marine

In fields with extremely high demands for weight, reliability, and environmental resistance, our lightweight, high-strength sealing solutions are indispensable. From high-temperature fuel seals in aircraft engines to marine propulsion systems and pressure-resistant seals for deep-sea equipment, we provide precision components that can withstand severe vibration, extreme temperatures, and special media, meeting the most stringent safety and performance standards.
Food and Pharmaceuticals

Food and Pharmaceuticals

In industries where health is paramount, cleanliness and safety are the top priorities. We use materials such as PTFE (polytetrafluoroethylene) and non-asbestos materials that comply with FDA, EU, and other regulations to produce gaskets and seals suitable for filling lines, bioreactors, and clean piping. They withstand frequent CIP/SIP cleaning, ensuring no contamination or shedding, maintaining absolute purity and compliance in production.

Key Features of DONHONSIL Industrial Gaskets

Engineering quality that surpasses standards: Through rigorous testing and innovative material processes, we have defined the core technical characteristics of DONHONSIL gaskets, ensuring exceptional sealing performance and long-term reliability in extreme pressure, temperature, and corrosive environments.

Durable Sealing

Utilizing a multi-layer structure design and high-quality fillers, it achieves ultra-low leakage rates and maintains a durable seal under thermal cycling and pressure fluctuations.

Versatile Performance

The product covers a temperature range from -200°C to +800°C and pressures up to 15,000 psi, adapting to extreme environments from cryogenic to ultra-high temperatures.

Media Compatibility

Offers a variety of material options, including stainless steel, Inconel alloys, and special coatings, to confidently handle highly corrosive media such as acids, alkalis, and solvents.

High Creep Resistance

Unique spring compensation and anti-creep design effectively compensate for flange deformation and bolt relaxation, ensuring long-term sealing integrity.

Compliant and Reliable

Strictly adheres to the ISO 9001 quality system, holds special equipment manufacturing licenses, and key products comply with international standards such as API and ASME.

Get Your Industrial Gaskets Today!

Get a quote fast, with custom non-standard designs and quick delivery available.

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Why Choose DONHONSIL’s Industrial Gaskets

Twenty years of dedicated expertise in the sealing field have forged a trustworthy professional brand: Choosing DONHONSIL means choosing the accumulated experience of two decades of practice, continuously innovative core technologies, and comprehensive service support from solution consulting to after-sales support.

Extensive Technical Expertise

With twenty years of professional R&D and manufacturing experience, our engineering team provides comprehensive technical support, from product selection to fault analysis.

Advanced Manufacturing Capabilities

Equipped with precision machining and testing equipment, we achieve manufacturing tolerances of ±0.01mm, ensuring exceptional quality and stability for every product.

Comprehensive Customization Solutions

Our strong OEM/ODM capabilities support non-standard designs and drawing conversions, providing cost optimization suggestions from material substitution to structural optimization.

Rapid Response Service

We promise 24-hour quick quotations and technical support, and have an emergency order channel to fully guarantee your project schedule and address urgent needs.

Complete Quality System

We implement end-to-end quality control from raw materials to finished products, and our comprehensive internal testing system ensures 100% reliability of all products before shipment.

A set of bright blue industrial piping and valve systems showcases application scenarios of sealing solutions for bolted flange connections, demonstrating the practical application of industrial sealing technology.

Customized Sealing Solutions

Your challenge, our expertise: We specialize in transforming your SOLIDWORKS/STEP/DWG drawings into high-performance custom seals using precision engineering techniques, and provide a one-stop solution from rapid response and accurate quotations to reliable delivery.

We specialize in non-standard and drawing-based deep customization services.

Leveraging our precision manufacturing capabilities, we can quickly transform your SOLIDWORKS/STEP/DWG drawings into functional seals with tolerance control down to ±0.01mm.

From technical consulting and preventative failure analysis to cost optimization, we provide one-stop value-added services, ensuring you receive the most suitable and cost-effective customized sealing solution for your specific application.

Our rapid response process helps you gain a competitive edge in the market.

FAQ about Industrial Gaskets

What is the delivery time for urgent orders?

We have a flexible process for handling urgent orders. For standard products with materials in stock or simple non-standard parts, the delivery time can be significantly shortened. The specific time needs to be evaluated based on the complexity of the order; please contact us immediately for the fastest delivery time.
Which industry standards do your gaskets comply with?

Our products widely comply with and meet international general standards such as API 6A, API 607, ASME B16.20, B16.5, and ISO. We can also provide products that meet specific industry specifications (such as NACE and FDA) according to customer requirements.
Can you produce gaskets of non-standard sizes or special materials?

Absolutely. Customization is one of our core services. We accept various non-standard orders and can process a wide range of high-performance materials, including Inconel alloys, special alloys, and filled PTFE.
What kind of precision and tolerances can DONHONSIL gaskets achieve?

We possess advanced precision machining capabilities. For metal gaskets and custom parts, critical dimensional tolerances can be strictly controlled within ±0.01mm, ensuring perfect assembly and sealing performance.
How do I choose the right gasket type for my application?

The selection requires comprehensive consideration of the medium, pressure, temperature, flange type, and standard requirements. We provide free technical consultation and will recommend the optimal solution by analyzing your system parameters (such as P/T curve and chemical compatibility). For example, spiral wound gaskets are recommended for high-pressure thermal cycling conditions.