Gaskets

Reliable flange sealing for demanding process conditions

A gasket is a critical sealing element that prevents leaks at flange and joint connections—protecting people, equipment and the environment. Correct selection reduces emissions, improves safety and supports long-term reliability.

TRCI supports specification of industrial gaskets for steam, hot oil, water, gases and aggressive chemicals. We help you select the right gasket type and material for your pressure, temperature, media and flange condition.

Benefits

  • Leak-tight sealing to reduce emissions and improve safety
  • Material options for high temperature, pressure and aggressive media (application-dependent)
  • Improved reliability and fewer unplanned shutdowns due to leaks
  • Solutions for imperfect or aged flange faces (selection-dependent)
  • Support for consistent assembly: correct gasket type, thickness and tightening approach
  • Custom sizes and standards coverage for common flange types

What are industrial gaskets?

Industrial gaskets are sealing elements installed between mating surfaces—most commonly flanges—to prevent leakage of liquids or gases. They work by deforming under bolt load to fill surface irregularities while maintaining sufficient resilience to keep a seal in operation.

Selecting the right gasket depends on pressure, temperature, media compatibility, flange design, surface condition and the available bolt load. The best choice balances compressibility, recovery, chemical resistance and blow-out safety.

Gasket types

Sheet gaskets (compressed fibre / elastomer / PTFE)

Sheet gaskets are versatile and widely used for water, air, oils and many chemicals. Material choice (fibre, rubber-bound, PTFE) depends on media compatibility and temperature. They are often selected for general flange sealing and maintenance applications.

Best for: general-purpose sealing and broad media coverage (material-dependent).

Spiral wound gaskets

Spiral wound gaskets combine metal and filler materials to handle higher pressures and temperatures. They offer good resilience and are common in steam and process lines where thermal cycling occurs. Configuration depends on flange type and required stability.

Best for: steam, thermal cycling and higher pressure/temperature duty.

Ring Type Joint (RTJ) gaskets

RTJ gaskets are metal rings designed for high-pressure, high-integrity flange connections. They require matched groove flanges and correct material selection to suit the medium and operating conditions. Used where controlled sealing and robustness are essential.

Best for: high-pressure services and critical joints with RTJ flanges.

Graphite and high-temperature sealing materials

Graphite-based gaskets and high-temperature sealing solutions are used where elevated temperatures, steam and aggressive services demand stable performance. Selection depends on oxidation conditions, flange stress and the required sealing class.

Best for: high temperature and demanding process conditions (selection-dependent).

Typical applications

Gaskets are used across industry wherever flanged connections must remain tight—especially under heat, pressure, vibration or aggressive media.

  • Steam and condensate lines
  • Hot oil and thermal fluid circuits (application-dependent)
  • Water and cooling systems
  • Compressed air and industrial gas lines
  • Chemical and process lines (media compatibility dependent)
  • Pumps, valves, heat exchangers and pipework connections

Need help selecting the right gasket?

Share the details below and we’ll recommend the best-fit gasket type, material and dimensions for reliable sealing:

  • Medium and concentration (and any cleaning agents / solvents)
  • Operating temperature range and pressure (incl. vacuum if applicable)
  • Flange type/standard and size (DN/NPS), gasket dimensions
  • Flange face condition and surface finish (new/aged, pitting, scratches)
  • Bolt size/grade and tightening method (torque, hydraulic, etc.)
  • Thermal cycling / vibration / movement in the line (if any)
  • Any compliance requirements (emissions targets, food proximity, etc.)
  • Current gasket type in use (if known) and failure mode observed (leaks, blow-out, relaxation)

Frequently asked questions

Common causes include incorrect material selection, insufficient or uneven bolt load, flange damage, temperature cycling, chemical incompatibility or installation errors.

Material selection depends on the medium, temperature, pressure and flange conditions. Share your operating data and we’ll recommend the best-fit option.

Yes—some gasket types and constructions tolerate certain imperfections better than others. We can propose a solution based on flange condition and bolt load.

Retorque requirements depend on gasket type, temperature cycling and the assembly procedure. We can advise based on your gasket selection and operating conditions.

Medium, temperature, pressure, flange type/size, flange condition and tightening method.

Let's specify the right gasket for your application.

Tell us your medium, temperature, pressure, and flange details. If you’ve experienced leaks, include where and when they occur (start-up, thermal cycling, after maintenance). We’ll recommend the best-fit gasket and practical installation guidance.






    SERVICES

    COMPANY

    CONTACT

    01 TRCI Logo Logo without tagline SVG
    Privacy Overview

    This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.