I have a question about gasket fitting

Seeking Precision Dimensions with Rubber Gaskets and Seals

  On this page – Gasket Tolerance | Ensuring a seal | Rubber displacement | Rubber and Friction | Density, dimensions and sealing softer rubber | What is a foam | Displacement and Compression | Dimension changes on fitting | Tolerance of sheet gasket materials | Cutting flexible gasket materials | How do I measure a gasket? | The […]

Should I Use Gasket Sealant?

  Gasket Sealant…. the whys and wherefores. Something we have answered many times at RAM and as often happens, there is no straight answer. There are many different applications and requirements and 1000’s of gasket sealants available. Most of our gaskets do not require sealant. If a solid gasket is being newly fitted to new […]

Why use a thin gasket?

Thinner is better – for sheet gasket materials We recommend using the thinnest possible gasket in most instances. The reasons for this are; Less leakage – smaller cross section of gasket material exposed to the internal pressure Resistance to Blow-out due to the smaller cross-sectional area Stronger compression strength contributes to higher surface loads able […]

Why do gaskets fail?

For many reasons and often a combination of different factors, here are some things to consider; Are the flanges even/flat? Is the Torque correct? Are the bolt spaces even? Is the gasket too thick? Is the material correct? (resistant to fluid, service chemicals, temperature etc?) Too old (gaskets have a shelf life) Blow out (pressure […]

Achievable Tolerances in Gasket Manufacture

This is a tricky subject as it varies greatly with each material. We can conform to tolerances when they are necessary. For an in-depth read about gasket tolerances with flexible rubber based materials please read our article Gasket Tolerance.

How do gaskets work?

The compression and subsequent displacement of the material when gasket material is compressed between two surfaces causes a seal to be formed that is maintained with movement, vibration, temperature fluctuations and the presence of chemicals, fluids, oils and steam. Different gasket materials are used for different applications. The materials are chosen based on their ability […]

How is a gasket used?

Gaskets are compressed between surfaces to maintain a seal. For this reason, most materials are slightly flexible, have good compression set (they bounce back) and allow for slight movement of the surfaces that they are secured between.  

Gasket Fitting Guide

Gasket Fitting Guide General recommendations for fitting gaskets. We recommend the following best practices to ensure correct gasket fitting. Care in material selection. Care of flange faces. Do not use jointing compounds. Gasket sealant or not? (Generally no gasket sealant is required). See here for more information on gasket sealants. Re-torque after 24 hours or one […]