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Preventing feed degradation

The aquafeed industry plays a vital role in supporting global aquaculture, providing essential nutrition to farmed fish and other aquatic species. It encompasses the production and distribution of specialised feeds tailored to meet the nutritional needs of various aquatic organisms. Aquafeed formulations often consist of a mix of protein sources, vitamins, minerals, and other additives to promote growth, health, and optimal performance. 

With the growing demand for seafood, the aquafeed industry has been expanding rapidly, driven by advancements in feed technology and increasing awareness of sustainable aquaculture practices. Continuous innovation and research are crucial for developing (cost) efficient and eco-friendly feed solutions to meet the industry's evolving demands. When it comes to the feeding equipment, these demands include minimal feed degradation and water pollution.

Feeding barges

The increasing growth of saltwater fish farms consequently raises the demand for automatic feeding systems at e.g. feeding barges. The expensive high-quality feed must end up in the water undamaged. Every single pellet must be handled gently to avoid breakage and crumbling. The TBMA HGRD200 blow-through rotary valves are being used to discharge and dose the feed efficiently from the hopper into the feed transport pipeline. These rotary valves are equipped with an adapted rotor, ensuring that the product is dosed and transported with minimal damage. 

The valves are of a robust and reliable design and the easy demountable execution guarantees quick (dis)assembly and easy maintenance. The reliability of the valve and the careful handling of the fish feed ensure a very favourable ROI (return on investment) and minimal water pollution.

Video: The Perfect Serve

Blow-through rotary valves

TBMA H-GR blowing seals have been used by major feeding barge manufacturers for many years. This picture shows a fine collection of 16 rotary valves ready for shipment to JT electric (now part of GroAqua) in the Faroe Islands. When designing their custom made feeding barges for fish farming, JT electric use TBMA rotary valves for the dosing and transport of the fish food.

“We use TBMA rotary valves because the tests we performed on the valves proved them to be of good quality. Also we appreciate the cooperation with the dedicated and skilled TBMA sales team. In the process from the first contact, our relationship with TBMA has grown stronger and closer”, states Ólavur Thomsen, Project Manager at GroAqua (formerly JT electric).


TBMA designs and supplies rotary valves, diverter valves and other components for the processing of bulk solids goods. Our high-end equipment is suitable for conveying powders and granules in almost all industries.

Our components:


TBMA are specialists in the design and supply of components and systems for bulk solids handling. Our extensive range of high quality processing equipment is suitable for handling powders and granules with proven reliability in practice in a variety of processing industries. The highly qualified and experienced TBMA staff are well able to translate your requirements into the right execution and application of our components. We also offer the design and execution of complete projects, thus providing you with an efficient, reliable and sustainable solution for your process.

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