Flanged reducers

Flanged reducers - an essential element of hydraulic installations

Flanged reducers are key components in pipeline systems.   They are used to connect pipes of different diameters. They provide a smooth transition between sections. At Onninen we offer a wide selection of flange reducers. They are made of high-quality materials. They meet the highest industry standards. Our products guarantee reliability and durability of the installation.

Types of flange reducers available in the Onninen offer

In our assortment you will find various types of flange reducers.   We offer models for water and industrial applications.   Reducers are available in grey and ductile iron. We also have stainless steel versions. Our products vary in diameters, lengths and reduction angles. This allows you to choose the right element for each installation.

The most popular types of flange reducers in our offer include:

• Symmetrical tapers - with an even taper on both sides
• Asymmetric reducers - with axis shift
• Long flange reducers - for smooth transitions
• Short flange reducers - for compact installations

Grey cast iron water flanges are very popular.   They work well in traditional water systems. Ductile iron is a more modern material. It provides better strength with less weight. We use it in more demanding applications.

Onninen's range of flanged reducer brands

In our assortment you will find products from renowned manufacturers.   We also offer flange reducers of our own brands.   These include Onnline, FXA and Opal. They guarantee excellent value for money. They have been developed based on our many years of experience. They meet the expectations of even the most demanding customers.

We often come across questions about the differences between brands. In our experience, it is worth paying attention to several aspects. Here are the most important ones:

• Manufacturing material and its properties
• Machining accuracy and fit
• Range of sizes available
• Certificates and approvals
• Warranty and technical support

Our advisors will be happy to help you choose the optimal solution.   We will take into account the specifics of your project and technical requirements. We will propose the best flange reducers for a specific application.

Criteria for selecting flange reducers

Choosing the right flange reducer is a key decision. It affects the efficiency and reliability of the entire system. At Onninen, we help our customers in this process. We pay attention to the most important parameters. Here are the main criteria to consider:

The material of the choke is crucial to its durability and resistance.   Grey cast iron works well in standard water installations. Ductile iron is a better choice for higher pressures. Stainless steel is ideal for aggressive media. We select the material for the working conditions and the medium being transported.

The size of the reducer must match the pipes being connected. We take into account the nominal diameters of the flanges. We also check the length of the reducer and the angle of the reduction. These parameters affect pressure losses and flow. We select them for the hydraulic requirements of the system.

The operating pressure is another important factor. The restrictor must withstand the maximum pressure in the system. We also take into account pressure fluctuations and water hammer. We choose products with an appropriate safety margin.

Operating temperature affects the properties of materials.   We check the resistance of the reducer to the planned temperature of the medium. We also take into account temperature changes and their effect on expansion. We select seals appropriate for the thermal conditions.

The type of flange connection must be compatible with the rest of the system. We check the type of flange, hole pattern and pressure class. We ensure proper fit and tightness of the connections.

At Onninen, we often come across unusual requirements. Recently, we were faced with a challenge when working on a project for a large industrial plant. The customer needed flanged reducers for an aggressive chemical medium. The operating temperature was up to 200°C. Standard solutions did not meet these requirements.

We proposed special reducers made of duplex steel.   This material combines strength with chemical resistance. We also selected special PTFE seals. The solution proved to be excellent. The customer obtained failure-free operation of the installation in difficult conditions.

This is an example of how important an individual approach is. At Onninen, we analyze each project. We select flange reducers for specific needs. This allows us to provide optimal solutions.

We encourage you to contact our specialists.   We will help you choose the perfect flange reducers. We will take into account all technical aspects of your project. We will provide the highest quality products at competitive prices.