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Consistent Feeding Through a Rotary Valve

Designed to Improve Efficiency

Industry: Plastics

The problem:

  • Our customer required a Rotary Valve to consistently feed PEEK polymer without gaps in the supply flow
  • Due to the characteristics of the product, the pellets would be damaged when they reach the pinch point of the inlet.

The requirement:

  • To provide a Rotary Valve that would give a throughput of 1 m³/hr and do so consistently and without interruption.

The solution:

  • Instead of the standard drop-through Rotary Valve, we supplied an offset version which will allow protruding pellets to fall back into the next pocket before they reach the pinch point. Also supplied was an adjustable metering baffle to regulate the flow of product into the valve. The final feature added was a rotor with staggered pockets that would discharge the product at a more consistent rate.

The result:

  • The solution provided the correct throughput without needing to make transitions to fit the existing connections, avoiding additional cost.

Working in collaboration, creating tailored solutions, engineering to improve your system.

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What our customers say

"Can you pass our thanks and appreciation to everyone involved with the delivery improvements on the unit delivered today. I know we put you all under some pressure, but you accepted the challenge and delivered upon it. Thank you for your fantastic service, we are all very grateful!" Russell Horrigan, Hayley Group Ltd
"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