Check valves and suction baskets

Check valves and suction strainers - key elements of hydraulic installations

Check valves and suction strainers are essential components of every hydraulic system.   In our daily practice, we see how important a role they play in ensuring the proper functioning of the installation. These inconspicuous elements have a huge impact on the efficiency and safety of the entire system.

We often come across the question about the differences between check valves and suction strainers. Although both have a protective function, their tasks are slightly different. Check valves prevent the backflow of fluid in the system. Suction strainers, on the other hand, filter contaminants at the pump inlet.

Types of check valves and suction strainers in the Onninen offer

Our range includes a wide selection of these products. We offer globe, flap and ball check valves. Suction baskets are available in various sizes. We have models from 1/2 to 2 inches. We especially recommend 5/4 inch suction baskets, which are great for many applications.

Our experience has shown that selecting the right type is crucial.   When choosing, the specifics of the installation should be taken into account. The following are important: pipe diameter, type of pumped medium and operating pressure. Our consultants will be happy to help you choose the optimal solution.

• Globe check valves - ideal for vertical pipe sections
• Flap check valves - suitable for horizontal installations
• Ball check valves - universal use
• Suction baskets - various sizes from 1/2" to 2"

In our offer you will find products of renowned brands. We recommend non-return valves and suction baskets from Valvex and Ferro. These are proven solutions that guarantee reliability and durability. It is worth paying attention to our own brands: Onnline and FXA. They offer an excellent price-quality ratio.

Practical applications of check valves and suction strainers

Recently, we had the opportunity to advise on the selection of these elements in a project for a large production plant. The client needed a solution for industrial water installations. We used flap check valves on the main mains. We installed 2-inch suction baskets on the suction pumps.

This solution provided optimal protection against water backflow.   At the same time, it effectively filtered mechanical impurities. The customer was very pleased with the results. The installation has been working without failure for several years. This shows how important it is to properly select these inconspicuous elements.

In the case of smaller installations, e.g. in single-family houses, check valves and suction strainers are also used. Smaller sizes, most often 1/2" or 3/4", work well here. They are installed at the water connection or at deep well pumps. They prevent water from flowing back and protect the installation from contamination.

1. Selecting the right size valve and basket
2. Taking into account the specifics of the installation
3. Correct installation according to the flow direction
4. Regular maintenance and cleaning

Many customers ask us about the criteria for selecting check valves and suction baskets. The most important thing is to match the diameter of the pipes in the installation. The maximum working pressure should also be taken into account. The direction of the flow of the medium is also important for check valves. Suction baskets are selected according to the size of the filter mesh.

Our experience shows that it is worth investing in high-quality products.   Seemingly more expensive solutions often turn out to be more economical in the long run. They provide a longer service life and require replacement less often. This translates into lower operating costs for the entire installation.

Innovations in the field of check valves and suction strainers

The hydraulics industry is constantly developing. New technological solutions are emerging. At Onninen, we follow these trends and introduce innovative products to our offer. Check valves with a shut-off function are becoming increasingly popular. They allow for easier servicing of the installation.

Another new feature is the suction baskets with a built-in non-return valve. This 2-in-1 solution simplifies installation and saves space. It works particularly well in compact installations, where every centimeter of space counts. This shows how this seemingly simple product category is evolving.

In our daily practice we observe a growing interest in these innovative solutions.   Customers appreciate their functionality and ease of installation. At the same time, proven, classic models are still very popular. This proves that in hydraulics, both innovation and reliability count.

Onninen, as an industry leader, is constantly expanding its offer with new products. At the same time, we take care of the availability of proven solutions. Thanks to this, every customer will find the optimal non-return valves and suction strainers for their installation. Our consultants will be happy to help you choose the best solution.

We invite you to familiarize yourself with the full offer of non-return valves and suction strainers in our catalog. In case of questions or doubts, our specialists are at your disposal. We will help you choose the optimal solution for each hydraulic installation.