Why are Rotary Valves used in Biomass Power Plants? 

Rotary valves are commonly used as a means to control the flow of biomass material, such as wood chips or sawdust, through the various stages of the plant’s processes.

In a biomass plant, the material is typically transported from one process to another, through a series of conveyor belts, pipes, and chutes. Rotary valves are installed at critical points along these routes, such as at the entrance to the combustion chamber or gasifier, to regulate the flow of material and ensure a consistent feed rate.

The rotary valve works by using a rotating rotor with specially designed vanes that pass through a housing. As the rotor turns, the vanes create a series of compartments that trap and release material as they rotate, allowing a precise amount of material to pass through the valve with each revolution. The rotary valve can be controlled by a motor or other automated system to adjust the flow rate as needed.

Overall, the purpose of rotary valves in biomass plants are to improve efficiency, reduce waste, and ensure consistent operation by providing accurate and reliable material metering and flow control.


Why is choosing the right sized valve so important?

Selecting the right size rotary valve is important in biomass power plants for several reasons:

Efficient Material Handling: If the rotary valve is too small, it can cause material clogging and result in decreased efficiency of the plant. On the other hand, if the rotary valve is too large, it can result in unnecessary energy loss and higher maintenance costs.

Accurate Material Flow Control: Selecting the right size rotary valve is essential to achieve accurate material flow control. If the valve is too small, the material flow rate may not be sufficient to meet the plant’s requirements. Conversely, if the valve is too large, the material flow rate may be too high, causing the plant to consume more fuel than necessary.

Consistent Performance: A properly sized rotary valve ensures consistent performance and helps prevent interruptions in the biomass power plant’s operation. A poorly sized rotary valve can cause fluctuations in the material flow rate, leading to inconsistent plant performance and potentially causing damage to equipment.

Safety: In addition to the operational benefits of a properly sized rotary valve, it is also important for safety. An undersized rotary valve can cause material to build up, leading to blockages, while an oversized valve can lead to material accumulation in the valve, causing overheating and potentially leading to a fire or explosion.

In conclusion, selecting the right size rotary valve is essential to ensure efficient, safe, and reliable operation of a biomass power plant. It is important to consider the material properties, flow rate, and other factors to choose the right size rotary valve for the application.

What our customers say

"I wanted to congratulate the entire team at Rotolok on the initial sales consultation, after sales support, technical documentation and most importantly the quality and reliability of your finished product. Notably the two ATEX certified rotary valves we bought from you last year have been faultless!" Rob Rogers, Technical Director, Gough Engineering
"You delivered the first 2 rotary valves in around 3 weeks, which was not only 1 week sooner than you quoted me, but an impressive 17 weeks faster than I was quoted by a competitor of yours!!” Richard Stanton, RAS Extraction Ltd
“I would like to take this opportunity to express my thanks to every staff member at Rotolok for their sincere support throughout. I would definitely recommend Rotolok to be considered on our future projects where advice is sought” Mechanical Engineer, Multi-National Project Management Consultancy
"We have been working with Rotolok for many years, throughout we have been overwhelmed with the product quality and especially the communication." General Manager, Major OEM Supplier, Lithuania
“The RotoFlex Valves arrived today and I could not be happier with them!” James Saker, Maintenance Technician at DDW, The Color House
“You may not know this but I bought twenty 250 drop through seals from Dan McCauley when he first started up in the mid to late 70’s. I think I picked them up from his home near Gatwick- they are still running perfectly!!” Duncan Marston, Former Director at C Marston and Sons (Now known as Heygates, Icklingham)
"Thank you so much for the prompt response and great support as always!” Multinational Consumer Goods Manufacturer
"I was really happy about the service and the fast responses I received.” Mischa Ruf, Process Engineer, Ingelia
"The specification was exactly as ordered and the Rotolok valve worked very well in every moment of production. We appreciate the interest to deliver the perfect product for our application." Alessandro Gonzalez, Mechanical Designer, IRIS S.R.L, Italy