Flange Gaskets

Rubberxpert flange gaskets provide reliable sealing between mating flange surfaces. It prevents leaks in your piping systems carrying liquids or gases under pressure. They support high-pressure flange sealing while providing insulation, vibration damping, and chemical resistance in industrial environments.

Flange gaskets are designed for both durability and flexibility, allowing them to perform effectively across a wide range of temperatures. Rubber Xpert Inc manufactures and supplies custom flange gaskets engineered to meet ANSI, DIN, and JIS standards for demanding applications.

10% discount for bulk orders over $1,000

Buy Flange Gaskets in Bulk from a Trusted
Manufacturer & Supplier, Rubber Xpert Inc.

Buy flange gaskets in bulk directly from a manufacturer you can trust. Rubber Xpert Inc. is a bulk flange gasket supplier. Rubber Xpert Inc. supplies certified materials, consistent QC, OEM flange gasket manufacturing, custom flange gasket sizes, competitive pricing, and fast turnaround for industrial buyers.

Full face rubber flange gasket for industrial pipe sealing

Full-Face Flange Gaskets (FF)

Full-Face Flange Gaskets (FF) are engineered for uniform load distribution and applications requiring reliable sealing, chemical stability, and consistent pressure performance across the entire flange surface. They deliver dependable sealing in systems where flange face protection, low bolt stress, and leak prevention are critical concerns.

  • Applications: Water systems, HVAC lines, Chemical Processing, Low-pressure piping
  • Material Type / Grade: EPDM, NBR, Neoprene, custom elastomers
  • Temperature Range: −40°C to +120°C (material-dependent)
  • Hardness (Durometer): 60–75 Shore A
  • Thickness Range: 1.5 mm to 6 mm
  • Key Features Full flange coverage, excellent compression recovery, corrosion protection, easy installation
Ring type flange gasket for high pressure applications

Ring-Type Flange Gaskets (RF)

Ring-Type Flange Gaskets (RF) are engineered for higher-pressure flange connections and applications requiring concentrated sealing stress, enhanced pressure resistance, and reliable leak prevention within the bolt circle. They deliver consistent sealing performance in systems where elevated pressure, thermal cycling, and space-restricted flange faces are critical concerns.

  • Applications: Oil & gas pipelines, chemical processing lines, Steam systems, Industrial process piping
  • Material Type / Grade: NBR, EPDM, Neoprene, PTFE, Custom Elastomers
  • Temperature Range: −30°C to +150°C (material-dependent)
  • Hardness (Durometer): 65–80 Shore A
  • Thickness Range: 1.5 mm to 5 mm
  • Key Features High-pressure sealing capability, reduced gasket blowout risk, precise flange fit, excellent chemical resistance
Spiral wound flange gasket for high temperature sealing

Spiral Wound Flange Gaskets

Spiral Wound Flange Gaskets are engineered for high-pressure and high-temperature applications requiring superior sealing integrity, mechanical strength, and resistance to thermal cycling. They deliver reliable sealing performance in environments where extreme pressure fluctuations, temperature variation, and aggressive media are critical concerns.

  • Applications: Oil & gas, petrochemical plants, power generation, steam lines
  • Material Type / Grade: Stainless steel windings with graphite or PTFE fillers
  • Temperature Range: −200°C to +550°C (material-dependent)
  • Hardness (Durometer): Not applicable (metallic/composite structure)
  • Thickness Range: 3.2 mm to 4.5 mm
  • Key Features Excellent pressure resistance, high temperature stability, strong recovery, reduced leakage under cyclic loads
PTFE flange gasket for chemical resistant sealing

PTFE Flange Gaskets

PTFE Flange Gaskets are engineered for chemically aggressive and high-purity applications requiring exceptional chemical resistance, non-reactivity, and stable sealing performance across wide temperature ranges. They deliver reliable sealing in environments where corrosive chemicals, contamination risk, and thermal variation are critical concerns.

  • Applications: Chemical processing, pharmaceuticals, food & beverage, corrosive fluid handling
  • Material Type / Grade: Virgin PTFE, filled PTFE (glass, carbon, bronze)
  • Temperature Range: −200°C to +260°C
  • Hardness (Durometer): Not applicable (thermoplastic material)
  • Thickness Range: 1.5 mm to 5 mm
  • Key Features Outstanding chemical resistance, low friction, non-contaminating, and excellent thermal stability.
Non metallic soft flange gasket for low pressure systems

Non-Metallic (Soft) Flange Gaskets

Non-Metallic (Soft) Flange Gaskets are engineered for low-to-medium pressure applications requiring excellent compressibility, surface conformity, and dependable sealing performance. They deliver reliable sealing in environments where flange irregularities, vibration, and moderate temperature or chemical exposure are critical concerns.

  • Applications: Water treatment, HVAC systems, general industrial piping, utility lines
  • Material Type / Grade: Rubber, CNAF, aramid fiber, compressed fiber sheets
  • Temperature Range: −40°C to +200°C (material-dependent)
  • Hardness (Durometer): 55–75 Shore A (material-dependent)
  • Thickness Range: 1.5 mm to 6 mm
  • Key Features High compressibility, good recovery, vibration absorption, cost-effective sealing
Semi metallic flange gasket for industrial sealing

Semi-Metallic Flange Gaskets

Semi-Metallic Flange Gaskets are engineered for demanding industrial applications requiring a balance of strength, flexibility, and reliable sealing under elevated pressure and temperature conditions. They deliver consistent sealing performance in environments where thermal cycling, pressure fluctuation, and mechanical stress are critical concerns.

  • Applications: Oil & gas processing, power plants, petrochemical facilities, steam systems
  • Material Type / Grade: Stainless steel cores with graphite or PTFE fillers
  • Temperature Range: −100°C to +550°C (material-dependent)
  • Hardness (Durometer): Not applicable (composite metal structure)
  • Thickness Range: 3 mm to 5 mm
  • Key Features High pressure tolerance, excellent recovery, resistance to blowout, durability under cyclic loads

Why Buy Flange Gaskets from Rubber Xpert Inc.?

Rubber Xpert Inc. uses certified gasket materials and engineering-grade manufacturing processes to deliver precision-crafted flange gaskets designed for durability, sealing accuracy, and consistent industrial performance.

Every flange gasket is produced under strict quality controls to ensure reliable sealing across high-pressure, chemical, and temperature-sensitive operating environments.

  • ISO-Certified Rubber Manufacturing: Controlled production systems ensure consistent quality, traceability, and compliance for industrial flange gasket applications.
  • Industry-Approved Material Grades: EPDM, NBR, PTFE, CNAF, and composite materials selected for pressure, chemical, and temperature compatibility.
  • Advanced Fabrication Capabilities: CNC cutting, die-cutting, and precision molding for accurate flange gasket profiles and repeatable tolerances.
  • Material Options for Demanding Environments: Solutions engineered for corrosive media, thermal cycling, vibration, and high-pressure sealing.
  • OEM & Bulk Production Support: Scalable manufacturing for OEMs, contractors, and distributors requiring large-volume or repeat orders.
  • Nationwide Delivery & Volume-Tier Pricing: Reliable logistics with cost advantages for bulk flange gasket procurement.
  • 10,000 sq. ft. Fully Equipped Production Facility: In-house manufacturing capacity built to support fast turnaround and consistent output.
Rubber Xperts INC exterior manufacturing facility in Fort Worth Texas

Your Custom Flange Gaskets Journey — From Specification to Delivery

What Are Flange Gaskets?

Flange gaskets are sealing components installed between two mating flange surfaces to prevent leakage in piping and fluid transfer systems. Their primary function is to create a tight, uniform seal when compressed, ensuring safe and efficient containment of liquids or gases.

Flange gaskets are engineered to perform under varying temperatures, pressure levels, and chemical exposures while maintaining flexibility, compression recovery, and sealing integrity. Flange gaskets provide insulation, vibration damping, and resistance to aggressive media, depending on the material.

Industries rely on flange gaskets in oil and gas, chemical processing, water treatment, power generation, and HVAC systems to maintain system reliability, prevent downtime, and meet safety and compliance requirements in critical operations.

What Types of Flange Gaskets Are Available?

The types of flange gaskets available include the following:

Full-Face Flange Gaskets

Full-face flange gasket covering entire flange surface for low-pressure piping applications

Full-Face Flange Gaskets

Full-face flange gaskets are designed to cover the entire flange surface, including the bolt holes, providing uniform load distribution and broad sealing contact. They are made from soft materials such as rubber or compressed fiber, offering good flexibility, compressibility, and surface conformity.

Go for flange gaskets for low-pressure applications in water treatment, HVAC, and utility piping. However, they are not recommended for high-pressure or high-temperature environments due to limited stress concentration and material strength.

Ring-Type Flange Gaskets

Ring-type flange gasket designed for focused sealing pressure in industrial piping systems

Ring-Type Flange Gaskets

Ring-type flange gaskets are made to fit inside the bolt circle and focus sealing pressure on a smaller contact area. Its design allows for improved pressure handling compared to full-face designs.

Ring-type flange gaskets are manufactured from elastomers, PTFE, or composite materials. They provide reliable sealing, chemical resistance, and better blowout resistance. Ring-type gaskets are widely used in oil and gas, chemical processing, and industrial piping systems. However, correct alignment and flange face compatibility are critical for effective sealing.

RTJ (Ring-Type Joint) Gaskets

RTJ ring-type joint gasket for high-pressure oil and gas and petrochemical applications

RTJ (Ring-Type Joint) Gaskets

RTJ (Ring-Type Joint) gaskets are precision-machined metallic gaskets designed to seat into specially grooved flanges, creating a metal-to-metal seal under extreme pressure. They are made from solid metals such as stainless steel or alloy steel, and offer exceptional pressure and temperature resistance with minimal leakage risk.

RTJ gaskets are best suited for high-pressure oil and gas, refinery, and petrochemical applications, but they require matching RTJ flanges and are not reusable once installed.

What Materials Are Used to Manufacture Flange Gaskets?

The materials used to manufacture flange gaskets include:

  • EPDM (Ethylene Propylene Diene Monomer): A highly flexible and weather-resistant elastomer offering excellent sealing performance in water and steam systems, with a temperature range of −40°C to +120°C. It is best suited for water treatment, HVAC, and outdoor piping applications.
  • Neoprene: A durable and balanced rubber material providing moderate chemical resistance and stable flexibility between −30°C and +100°C. It is commonly used in refrigeration systems, utility piping, and general industrial environments.
  • Nitrile (Buna-N): An oil-resistant and mechanically strong elastomer designed for fuel and hydrocarbon exposure, operating from −30°C to +120°C. It is ideal for oil and gas, fuel handling, and hydraulic systems.
  • Viton (FKM): A high-temperature and chemically robust fluoroelastomer capable of withstanding −20°C to +250°C. It is best applied in chemical processing, petrochemical plants, and high-performance sealing environments.
  • Graphite: A thermally stable and pressure-resistant material maintaining sealing integrity up to +450°C. It is commonly used in high-pressure steam systems, refineries, and power generation facilities.
  • PTFE (Teflon): A chemically inert and low-friction thermoplastic offering a wide temperature range of −200°C to +260°C. It is best suited for corrosive chemical handling, pharmaceuticals, and food-grade applications.

Flange Gaskets Material Comparison Table

Material Operating Temperature Compression Set Chemical Resistance Cost Best For
EPDM −40°C to +120°C Low Excellent (water, steam, mild chemicals) Low Water treatment, HVAC, outdoor piping
Neoprene −30°C to +100°C Moderate Good (oils, weather, mild chemicals) Low–Medium Utility lines, refrigeration, and general industrial use
Nitrile (Buna-N) −30°C to +120°C Low–Moderate Excellent (oils, fuels, hydrocarbons) Medium Oil & gas, hydraulic systems, fuel handling
Viton (FKM) −20°C to +250°C Very Low Excellent (aggressive chemicals, solvents) High Chemical processing, petrochemical, high-temp sealing
Graphite −200°C to +450°C Very Low Excellent (most chemicals, high pressure) Medium–High Steam systems, refineries, and power generation
PTFE (Teflon) −200°C to +260°C Moderate Outstanding (near-universal resistance) Medium Corrosive fluids, pharma, food-grade applications

How to Choose the Right Flange Gasket for Your Needs?

To choose the right flange gasket, match the material size, temperature rating, pressure capacity, and operating environment to your specific application.

Select a gasket material chemically compatible with your system fluid or gas. Incompatibility leads to rapid degradation. Confirm your correct gasket size and flange standard, especially for die-cut gaskets.

You must also evaluate operating temperature and pressure limits to avoid gasket blowouts. Environmental factors like vibration, thermal cycling, and exposure conditions directly impact gasket durability and sealing stability.

Where Are Flange Gaskets Commonly Used?

Flange gaskets are commonly used in the following areas:

Automotive

Flange gaskets are used to seal fluid transfer points in engines, exhaust systems, cooling lines, and fuel assemblies. They help prevent leaks, absorb vibration, and maintain pressure stability under continuous thermal cycling and mechanical stress.

Electronics

In electronics manufacturing, flange gaskets provide sealing and insulation for enclosures, cooling systems, and protective housings. They help block moisture, dust, and chemical ingress while maintaining stable internal operating conditions.

Industrial Machinery

Flange gaskets are found in pumps, compressors, pipelines, and process equipment where reliable sealing is critical. They ensure leak-free operation, reduce downtime, and protect machinery from pressure loss and contamination.

Food & Beverage Processing

Flange gaskets seal processing lines, tanks, and transfer systems in food and beverage systems. They support hygienic operations by preventing contamination, handling temperature variation, and maintaining consistent sealing during washdowns.

Medical & Healthcare Equipment

Flange gaskets are used in medical gas lines, sterilization systems, and fluid-handling equipment. They provide precise, contamination-free sealing where safety, cleanliness, and material stability are essential.

HVAC & Refrigeration

Flange gaskets seal ducting, chillers, compressors, and coolant lines in HVAC and refrigeration systems. They help maintain system efficiency by preventing refrigerant leaks and handling pressure and temperature fluctuations.

Marine & Offshore

Flange gaskets are critical in marine piping, fuel systems, and offshore platforms where corrosion resistance and pressure reliability are required. They ensure secure sealing in harsh environments exposed to saltwater, vibration, and extreme operating conditions.

Key Features & Benefits of Flange Gaskets

The key features and benefits of flange gaskets include:

Wide Temperature Capability

Flange gaskets are designed to perform reliably across temperature ranges from −200°C to +550°C, depending on material selection.

Leak-tight Sealing Performance

They maintain consistent sealing under low to high-pressure conditions, reducing the risk of system leaks and downtime.

High Compression Recovery

Flange gasket is engineered to retain sealing integrity after repeated loading cycles, extending service life in dynamic systems.

Dimensional Accuracy

They are manufactured to tight tolerance ranges (±0.1 mm) for proper flange alignment and uniform bolt load distribution.

Material Versatility

Flange gaskets are available in elastomeric, non-metallic, and semi-metallic options to suit chemical, thermal, and mechanical demands.

Vibration and Shock Absorption

They help dampen mechanical vibration, protecting connected equipment and improving system stability.

Extended Operational Lifespan

Flange gaskets are designed for long-term use with service life exceeding standard maintenance cycles when correctly specified and installed.

How to Install Flange
Gaskets

Follow these steps to install flange gaskets:

1

Step 1: Surface cleaning

Clean both flange faces thoroughly to remove dirt, old gasket residue, rust, oil, and moisture. A clean, flat sealing surface prevents uneven compression and reduces leak risk.

2

Step 2: Alignment

Bring the flanges into proper alignment and verify that the bolt holes line up without forcing. Misalignment creates uneven gasket loading and causes premature failure.

3

Step 3: Placement

Center the flange gasket correctly on the flange face (full-face or ring-type position), ensuring it sits flat with no folds or twists. Confirm the gasket ID/OD and bolt circle match the flange standard.

4

Step 4: Compression/Fastening

Insert bolts and tighten in a star (cross) pattern in gradual torque increments to achieve uniform compression. Avoid over-tightening, as excessive load can crush soft gaskets or distort the sealing surface.

5

Step 5: Leak or Performance Testing

Pressurize the system gradually and inspect the joint for leaks using the appropriate test method (pressure hold, bubble test, or approved plant procedure). Confirm performance under operating pressure and temperature where possible.

6

Step 6: Final Check

Recheck bolt torque after initial pressurization and thermal stabilization if your procedure requires it. Document the installation details (gasket type, material, thickness, and torque values) for maintenance traceability.

Frequently Asked Questions

Here are some frequently asked questions about our Flange Gaskets to help you find the answers you need:

In normal operating conditions, flange gaskets last several years. Lifespan shortens when exposed to excessive temperature, pressure, or chemical mismatch, while proper material selection and installation extend service life.

Yes, but once compressed, most flange gaskets lose recovery. Reusing them increases leak risk, so replacing the gasket ensures proper sealing and system reliability.

Flange gasket leaks usually result from incorrect material selection, uneven bolt torque, flange misalignment, or surface damage. Addressing these factors restores sealing performance.

You know the gasket size to choose by matching the gasket to the flange standard, bolt circle, and nominal pipe size. Incorrect sizing leads to poor sealing, so ensure proper fit and compression.

Some gasket types are designed for high pressure, while others are not. Selecting the correct gasket construction and material prevents blowout and maintains sealing integrity.

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