Ratio-Selector Valves

Ratio-Selector 2000

The Ratio-Selector 2000 is an externally mounted, adjustable 2-way proportional valve designed for non-critical proportioning of two materials into a single vacuum receiver. It is ideal for applications where consistent, simple mixing is required without complex control systems.

The Ratio-Selector 2000 is recommended for smaller conveying capacities up to 150 kg, provided no glass-filled material is used. For applications involving glass-reinforced materials, the RS-818 is recommended.

Key Benefits

  • Proportional mixing of two materials
  • Easy installation on hopper loaders
  • Adjustable suction times via digital timers
  • Simple, reliable mixing principle, also for regrind usage
Ratio-Selector 818

The Ratio-Selector 818 is an externally mounted, adjustable 2-way proportional valve designed for alternating, non-critical, proportional feeding of two materials into a single vacuum receiver.

It is ideal for applications requiring robust, consistent mixing, even in demanding conveying environments.

Key Benefits

  • Simple to install
  • Conveying of 2 materials
  • Individual adjustment of conveying intervals
    for valve 1 and valve 2
  • Simple mixing technique for regrind usage
  • Connected to the control of the Con-Evator
  • Cast aluminium construction, wear parts in stainless steel AISI 304
Ratio-Selector, Integrated Dosing Valve (IDV)

As RS 2000 & RS 818, IDV is time controlled. However, IDV is fully integrated in Labotek’s range of stainless vacuum hoppers SVR 4-50 (4-50 litres).

Highly suitable for larger capacities