Water supply collars

Water pipe flanges - essential installation elements

Water flanges are key components in water distribution systems.   They are used to connect pipes, valves and other installation elements. At Onninen we offer a wide selection of flanges from renowned manufacturers. Our offer includes products from the Bohamet - Armatura and Geldbach brands. We care about the high quality and reliability of the elements supplied.

In our daily practice, we see a growing demand for water pipe collars. This is due to the intensive development of water infrastructure in Poland.   Flanges must meet strict strength and quality standards.   That is why we carefully select our assortment to meet customer expectations.

Types of water pipe flanges available from Onninen

In our assortment you will find various types of collars:

• Blind flanges
• Loose steel flanges for PE pipes
• Galvanized flanges
• Water flanges
• GJS flanges - ductile iron

Each of these types has its own unique applications.   Blind flanges are used to plug the ends of pipes or openings in tanks.   Steel loose flanges are used to connect polyethylene pipes. Galvanized models provide additional protection against corrosion. GJS flanges made of ductile iron are characterized by high strength.

Our experience shows that choosing the right collar is crucial. It affects the tightness and durability of the entire installation. That is why our experts are happy to advise on choosing the optimal solution. We analyze the individual needs of each project.

Criteria for selecting water pipe flanges

When selecting water flanges, there are several important factors to consider:

• Nominal diameter (DN)
• Nominal pressure (PN)
• Material of manufacture
• Connection type
• Working conditions (temperature, aggressiveness of the medium)

The nominal diameter must match the pipe diameter.   The nominal pressure determines the maximum working pressure. The material should be resistant to corrosion and working conditions. The type of connection depends on the specifics of the installation. The working conditions determine the selection of the appropriate type of material.

At Onninen, we often come across questions about selecting flanges. Our customers appreciate expert advice in this area. Thanks to our many years of experience, we are able to advise on the optimal solutions. We analyze the specifics of each project and propose the best options.

Practical applications of water pipe collars

Water pipe flanges are widely used in various industries.   In water supply networks, they are used to connect pipes, valves and other fittings. In sewage treatment plants, they enable the installation of pumps and filters. In the food industry, they provide hygienic connections in process installations.

Recently, we used GJS flanges in a project for a large production plant. The choice of ductile iron was dictated by high strength requirements. The flanges had to withstand significant loads and vibrations. They performed excellently, ensuring trouble-free operation of the installation.

In the case of modernization of the water supply network in a small town, we recommended galvanized collars. They provided additional anti-corrosion protection. This was important due to the aggressive ground conditions in this area. After several years of use, the client confirmed that this was the right choice.

Loose steel flanges for PE pipes are suitable for temporary installations.   They enable quick assembly and disassembly. We often use them for temporary connections on construction sites. They provide flexibility and the possibility of multiple use.

Many customers ask us about the possibility of using collars in fire protection installations. In such cases, we recommend models with increased fire resistance. They must meet rigorous safety standards. We supply collars with appropriate certificates and approvals.

In our daily practice, we see a growing interest in plastic collars. They are suitable for chemically resistant installations. We use them, among others, in galvanic plants or laboratories. They provide resistance to aggressive media while maintaining a lightweight construction.

Blind flanges are used not only for closing pipelines.   They are also used as inspection plugs in tanks and separators. They allow easy access to the interior of the device during inspections and maintenance. In some cases, we use blind flanges with a sampling nozzle.

Our experience shows that the correct installation of flanges is just as important as their selection. That is why we offer our customers professional assembly training. This includes the correct techniques for tightening flange connections. We pay attention to the correct torque and the order in which they are tightened.

At Onninen, we focus on comprehensive customer service. In addition to the flanges themselves, we also supply a full range of mounting elements. This includes screws, nuts, washers and gaskets. This means that our customers can obtain a complete set in one place.

Water pipe flanges are products of key importance for the safety of the installation.   That is why we attach great importance to their quality. All flanges supplied by us undergo rigorous testing. They have the necessary certificates and approvals for contact with drinking water.

Onninen, as a leader in the installation market, constantly monitors the latest trends. We observe a growing demand for flanges with increased corrosion resistance. That is why we have introduced stainless steel and duplex models to our offer. They work well in the most demanding applications.

We encourage you to contact our technical advisors. They will help you choose the optimal water pipe collars for your project. We provide professional support at every stage of the investment. We guarantee competitive prices and fast delivery from our warehouses.