Offset Rotary Valves Handle Plastics with Care

Rotolok plastic pellets

Offset Rotary Valves Used to Reduce Degradation

Industry: Plastics

The problem:

  • Our customer was looking for four rotary valves to handle plastic pellets in the their pneumatic conveying system.
  • The plastic pellets are fragile and likely to shear in standard blowing seals, which are typically used in these conveying systems.

The requirement:

  • To provide rotary valves that would effectively feed the pellets into the conveying line below it without damaging them.

The solution:

  • By using an offset rotary valve and adding a shear plate deflector, we could prevent the pockets from overfilling. This prevents product being caught in the pinch point, solving the shearing issue. To connect to the conveying line beneath the valve, a dropout box with a matching pipe diameter was fabricated to sit under the valve.

The result:

  • A solution that mitigates product degradation whilst providing efficient feeding of the conveying line.

Working in collaboration, creating tailored solutions, engineering to improve efficiency.

Rotolok plastic pellets
Back to Case Studies

Latest Case Studies

Innovative elongated Rotary Valve

Accurate feeding and filling of sachets, reduced segregation and a greater consistency in the particle distribution, which gave less variation in taste of the reconstituted beverage.

Large Valves with Atex Certification

Our 750mm rotary valve running at 12rpm could handle this volume with ease. We fitted a ten vane rotor with adjustable, abrasion resistant tips and stiffeners to provide...