Steel flanges

Steel flanges – an essential element of a pressure installation

Steel flanges are elements commonly used in heating, water and gas installations, used, among others, to connect pipelines with pressure tanks. We invite you to familiarize yourself with the offer of the Onninen wholesaler, where you will find flat flanges, weld-on neck flanges, threaded flanges and others. Choose from products from our proven suppliers - Geldbach or Onnline.

What are steel flanges and what are they used for?

Steel flanges are durable elements used in the connections of piping systems, where various media are transferred, e.g. water or gas. They are most often used to connect pressure vessels to pipelines or individual pipelines to each other.

Using flanges allows for a very tight connection, adapted to pressures of around 350 atmospheres. Steel flanges mounted on pipes allow for the creation of a practical segmented installation - in the event of any failure, you can easily and quickly replace the damaged section of the pipeline and replace it with a new fragment with known dimensions and parameters.

How to choose the right steel flanges?

Before purchasing a suitable steel flange, its most important parameters should be taken into account, including:

• dimensions (thickness, inner diameter),

• material,

• adaptation to the specifics of a specific installation (type of transported medium).

You can verify the properties/attributes of individual products and choose the ones you care about most – just use the filtering option on the left.

High-quality steel flanges - a wide range of Onninen wholesalers

Flat steel flanges

Damage-resistant stainless steel flat flanges in various dimensions. Designed for connecting polyethylene pipes, mainly used in low-pressure water and sewage installations. Check out the entire range of steel flanges in the Onninen wholesaler.

Weld-on neck flanges

These products are equipped with an additional neck, which makes it easier to connect them to the pipeline. On our website you will find weld-on neck flanges in various configurations, thanks to which you will easily select elements that perfectly match specific pipes.

Threaded neck flanges

We offer threaded neck flanges with a neck and external thread, which are perfect for various types of installations. They can also be used in devices that must maintain optimal parameters at low and high temperatures.

Blind flanges

Blind flanges , as the name suggests, are responsible for closing the end of a specific installation. Check out the offer of this type of flanges on our website.

Flange gaskets and accessories

Here you will find, among others, gaskets for steel flanges for gas/oil, reinforced gaskets and rubber gaskets. Gaskets and accessories for flanges help to create durable and tight flange connections.

Steel flanges other

In the other steel flanges category, there are stainless steel flanges with a longer push-in end, which makes it easier to connect them to the pipes.

Check out steel flanges from the Onninen wholesaler and choose products tailored to your needs

Steel collars available on our website can be summed up in a few words: reliability, durability, versatility. By choosing products from the Onninen wholesaler you receive a guarantee of the highest quality and functionality that will work for years. We invite you to shop!