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Flange gaskets are one of the most important elements ensuring the tightness of water, heating, industrial, and technical installations

At Power Rubber, we specialize in the production and supply of rubber gaskets and gaskets cut from elastomer sheets. Therefore, this article presents practical and substantive information regarding the types, materials, and selection principles of flange gaskets, developed in a clear and useful way for people working with pipeline installations.

What are flange gaskets?

Flange gaskets are elements installed between two flanges of a pipeline or device. Their purpose is:

• ensuring tightness of the connection

• compensating for minor surface irregularities

• protecting against medium leakage

• enabling easy installation and disassembly of the system

In water, heating, and industrial installations, rubber gaskets and gaskets made from elastomer sheets are most commonly used, as they perform very well at low and medium pressures.

Standards and norms for flange gaskets

At Power Rubber, we manufacture gaskets compliant with the most important standards:

• PN-EN 1514 – flat gaskets for flanges according to EN 1092-1

• PN-EN 12560 – gaskets for steel flanges

• PN – traditional national standards used in many installations

This ensures full compatibility with flanges used in water, industrial, and technical installations.

Types of flange gaskets available at Power Rubber

Rubber gaskets

Most commonly used in installations:

• water

• sewage

• heating

• industrial with low and medium pressure

We manufacture them from various types of rubber:

• SBR – for water and general technical applications

• NBR – for oils, fuels, and petroleum-based substances

• EPDM – resistant to weather conditions, low-pressure steam, and water

• Silicone – for food, sanitary, and high-temperature applications

Gaskets from elastomer sheets

Precisely cut to size, according to standards or customer design. Ideal for:

• industrial installations

• technical equipment

• non-standard flange connections

Custom gaskets

Power Rubber offers the possibility of manufacturing gaskets:

• according to technical drawings

• based on a provided sample

• in any shape and thickness

• in single or series production

This is an ideal solution for service, manufacturing, and maintenance companies.

Flange gasket materials – what to choose?

SBR rubber

• resistant to water and weather conditions

• used in water and general installations

NBR rubber

• resistant to oils, fuels, and greases

• used in industrial and hydraulic installations

EPDM rubber

• resistant to low-pressure steam, water, and UV

• ideal for outdoor and heating installations

Silicone rubber

• high temperature resistance

• approved for food contact

• used in food and pharmaceutical industries

How to select a flange gasket?

1. Define the medium

• water - SBR or EPDM

• oils -NBR

• low-pressure steam - EPDM

• food and pharmaceuticals - silicone

2. Check temperature and pressure

Rubber gaskets are ideal for low and medium pressures and temperatures typical for water and industrial installations.

3. Select standard and dimensions

The gasket must match:

• flange DN

• flange PN

• manufacturing standard (e.g., PN-EN 1514)

4. Consider operating conditions

• vibrations

• frequent disconnections

• exposure to UV or chemicals

Common mistakes when using rubber gaskets

• selecting the wrong material (e.g., SBR for oil)

• using gaskets outside temperature range

• installation on dirty or corroded flanges

• excessive or insufficient bolt tightening

• reuse of gaskets

Good installation practices

• clean flange surfaces

• center the gasket

• tighten bolts evenly, in a cross pattern

• use appropriate tightening torque

• use gaskets only once

Why choose rubber gaskets from Power Rubber?

• precise CNC production

• wide range of materials

• compliance with PN-EN standards

• fast order processing

• possibility of custom gasket production

• technical consulting

Flange gaskets available at Power Rubber

At Power Rubber, you will find a wide range of flange gaskets made of:

• SBR, NBR, EPDM, and silicone rubber

• elastomer sheets

• materials tailored to specific media and working conditions

We manufacture gaskets in accordance with PN-EN 1514, EN 1092-1 standards, as well as custom-made solutions.

Order flange gaskets from Power Rubber

If you need durable, precisely manufactured, and properly matched flange gaskets for your installation — contact Power Rubber.

Order now or request a quote: +48 22 292 40 24 or +48 505 16 03 03, or by email (Power@PowerRubber.com) or via our contact form.