Role: Manufacturer

Metal-Reinforced Flange Gaskets

Improved dimensional stability and handling for large-diameter flange sealing.

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Overview

Reinforcement that makes a large gasket manageable on site

Large rubber gaskets can deform under their own weight during transport and installation. Thanks to the built-in metal reinforcement, a JAEQUAS metal-reinforced gasket does not sag under its own weight, does not fold and does not break while it is being fitted.

The robust construction makes assembly easier and continues to provide dependable sealing in large-diameter water-utility systems. Even at DN1200 the gasket keeps its shape and can be positioned by one person.

The reinforcement does not replace correct flange alignment or bolt tightening. Its purpose is to make a large gasket easier to position while maintaining the sealing properties of the selected rubber compound.

Key capabilities

Manufactured range DN15 to DN1200
Keeps its shape when lifted with one hand
Improved handling and shape retention on site
Custom compound selection subject to application review
Large water-utility and industrial flange applications

Where it pays off

Large diameters, limited access, one installer

The larger the diameter, the more a standard flat gasket behaves like a floppy ring: it sags off the bolts, folds over and has to be re-centred while the flange is being closed. On a DN800 or DN1000 joint that is not a comfort issue, it is a time and safety issue.

Our reinforced construction keeps the gasket rigid enough to hold its geometry during handling, and elastic enough to seal once the bolts are tightened. It is especially useful in valve chambers, pump rooms and buried installations where there is no room to work around the flange.

Selection & quotation

Information needed for selection and quotation

The more precise the input, the faster and more reliable our technical answer. For non-standard requirements, a drawing or a physical sample is the best starting point.

Practical benefits

Stays flat during transport and lifting
Easier centring before the bolts are tightened
Fewer damaged gaskets on site
Same compound options as our standard range

DN and flange standard
Exact gasket thickness
Pressure class
Medium and temperature
Installation orientation and access
Quantity

Comprehensive size chart

Vulcanized Flange Gasket Size Table
Manufactured	Size (DN, formerly NA)	Plain	Metal-Reinforced	With Strainer
	DN15	✓	✓	–
	DN20	✓	✓	–
	DN25	✓	✓	–
	DN32	✓	✓	–
	DN40	✓	✓	✓
	DN50	✓	✓	✓
	DN65	✓	✓	✓
	DN80	✓	✓	✓
	DN100	✓	✓	✓
	DN125	✓	✓	✓
	DN150	✓	✓	✓
	DN200	✓	✓	✓
	DN250	✓	✓	✓
	DN300	✓	✓	✓
	DN350	✓	✓	✓
	DN400	✓	✓	✓
	DN500	✓	✓	✓
	DN600	✓	✓	?
	DN700	✓	✓	–
	DN800	✓	✓	–
Distributed	DN900	–	✓	–
	DN1000	–	✓	–
	DN1200	–	✓	–

From the manufacturer

It does not deform under its own weight

Thanks to the built-in metal reinforcement the gasket does not deform under its own weight, does not fold and does not break during installation. The robust design makes assembly easier and provides a reliable seal over the long term in large-diameter water-utility systems.

Vulcanized metal-reinforced flange gaskets hold a stable shape and excellent grip even in large diameters — up to DN1200 — and can still be lifted into place by one person.

Large diameters, delivered ready to fit
The reinforcement keeps the ring in shape

Are you a contractor or a network operator? If this is of interest, get in touch.

FAQ

Frequently asked questions

Cannot find your answer? Send us the technical details and we will review the application.

Why reinforce a rubber gasket?

Reinforcement improves dimensional stability and handling, especially at large diameters where the gasket would otherwise deform under its own weight.

Does the metal insert contact the medium?

The construction is confirmed for the exact product. The sealing concept is defined project by project.

What is the largest diameter?

Up to DN1000, with stable shape and reliable hold even when handled by one person.

Can you make custom large diameters?

Yes, subject to technical review and tooling or manufacturing feasibility.

Are you a contractor or a network operator?

We will review the application and confirm the most suitable next step.

Request a Technical Quote